mirror of
https://github.com/vacp2p/nim-libp2p.git
synced 2025-03-01 16:40:32 +00:00
update website
This commit is contained in:
vladopajic
parent
707537e714
commit
45a97168e3
@ -26,15 +26,18 @@ proc main() {.async.} =
|
||||
let customProtoCodec = "/test"
|
||||
var proto = new LPProtocol
|
||||
proto.codec = customProtoCodec
|
||||
proto.handler = proc(conn: Connection, proto: string) {.async.} =
|
||||
var msg = string.fromBytes(await conn.readLp(1024))
|
||||
echo "1 - Dst Received: ", msg
|
||||
assert "test1" == msg
|
||||
await conn.writeLp("test2")
|
||||
msg = string.fromBytes(await conn.readLp(1024))
|
||||
echo "2 - Dst Received: ", msg
|
||||
assert "test3" == msg
|
||||
await conn.writeLp("test4")
|
||||
proto.handler = proc(conn: Connection, proto: string) {.async: (raises: []).} =
|
||||
try:
|
||||
var msg = string.fromBytes(await conn.readLp(1024))
|
||||
echo "1 - Dst Received: ", msg
|
||||
assert "test1" == msg
|
||||
await conn.writeLp("test2")
|
||||
msg = string.fromBytes(await conn.readLp(1024))
|
||||
echo "2 - Dst Received: ", msg
|
||||
assert "test3" == msg
|
||||
await conn.writeLp("test4")
|
||||
except:
|
||||
echo "exception in handler", getCurrentException().msg
|
||||
|
||||
let
|
||||
relay = Relay.new()
|
||||
|
||||
@ -553,64 +553,67 @@ directly, but can reach it through another node (the Relay).</p>
|
||||
<a id="__codelineno-0-18" name="__codelineno-0-18" href="#__codelineno-0-18"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">customProtoCodec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">"/test"</span>
|
||||
<a id="__codelineno-0-19" name="__codelineno-0-19" href="#__codelineno-0-19"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="n">proto</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">new</span><span class="w"> </span><span class="n">LPProtocol</span>
|
||||
<a id="__codelineno-0-20" name="__codelineno-0-20" href="#__codelineno-0-20"></a><span class="w"> </span><span class="n">proto</span><span class="p">.</span><span class="n">codec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">customProtoCodec</span>
|
||||
<a id="__codelineno-0-21" name="__codelineno-0-21" href="#__codelineno-0-21"></a><span class="w"> </span><span class="n">proto</span><span class="p">.</span><span class="n">handler</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">proc</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-0-22" name="__codelineno-0-22" href="#__codelineno-0-22"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="n">msg</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">string</span><span class="p">.</span><span class="n">fromBytes</span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">1024</span><span class="p">))</span>
|
||||
<a id="__codelineno-0-23" name="__codelineno-0-23" href="#__codelineno-0-23"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"1 - Dst Received: "</span><span class="p">,</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-24" name="__codelineno-0-24" href="#__codelineno-0-24"></a><span class="w"> </span><span class="n">assert</span><span class="w"> </span><span class="s">"test1"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-25" name="__codelineno-0-25" href="#__codelineno-0-25"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="s">"test2"</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-26" name="__codelineno-0-26" href="#__codelineno-0-26"></a><span class="w"> </span><span class="n">msg</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">string</span><span class="p">.</span><span class="n">fromBytes</span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">1024</span><span class="p">))</span>
|
||||
<a id="__codelineno-0-27" name="__codelineno-0-27" href="#__codelineno-0-27"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"2 - Dst Received: "</span><span class="p">,</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-28" name="__codelineno-0-28" href="#__codelineno-0-28"></a><span class="w"> </span><span class="n">assert</span><span class="w"> </span><span class="s">"test3"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-29" name="__codelineno-0-29" href="#__codelineno-0-29"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="s">"test4"</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-30" name="__codelineno-0-30" href="#__codelineno-0-30"></a>
|
||||
<a id="__codelineno-0-31" name="__codelineno-0-31" href="#__codelineno-0-31"></a><span class="w"> </span><span class="k">let</span>
|
||||
<a id="__codelineno-0-32" name="__codelineno-0-32" href="#__codelineno-0-32"></a><span class="w"> </span><span class="n">relay</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Relay</span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-33" name="__codelineno-0-33" href="#__codelineno-0-33"></a><span class="w"> </span><span class="n">clSrc</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">RelayClient</span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-34" name="__codelineno-0-34" href="#__codelineno-0-34"></a><span class="w"> </span><span class="n">clDst</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">RelayClient</span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-35" name="__codelineno-0-35" href="#__codelineno-0-35"></a>
|
||||
<a id="__codelineno-0-36" name="__codelineno-0-36" href="#__codelineno-0-36"></a><span class="w"> </span><span class="c"># Create three hosts, enable relay client on two of them.</span>
|
||||
<a id="__codelineno-0-37" name="__codelineno-0-37" href="#__codelineno-0-37"></a><span class="w"> </span><span class="c"># The third one can relay connections for other peers.</span>
|
||||
<a id="__codelineno-0-38" name="__codelineno-0-38" href="#__codelineno-0-38"></a><span class="w"> </span><span class="c"># RelayClient can use a relay, Relay is a relay.</span>
|
||||
<a id="__codelineno-0-39" name="__codelineno-0-39" href="#__codelineno-0-39"></a><span class="w"> </span><span class="n">swRel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">createCircuitRelaySwitch</span><span class="p">(</span><span class="n">relay</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-40" name="__codelineno-0-40" href="#__codelineno-0-40"></a><span class="w"> </span><span class="n">swSrc</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">createCircuitRelaySwitch</span><span class="p">(</span><span class="n">clSrc</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-41" name="__codelineno-0-41" href="#__codelineno-0-41"></a><span class="w"> </span><span class="n">swDst</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">createCircuitRelaySwitch</span><span class="p">(</span><span class="n">clDst</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-42" name="__codelineno-0-42" href="#__codelineno-0-42"></a>
|
||||
<a id="__codelineno-0-43" name="__codelineno-0-43" href="#__codelineno-0-43"></a><span class="w"> </span><span class="n">swDst</span><span class="p">.</span><span class="n">mount</span><span class="p">(</span><span class="n">proto</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-44" name="__codelineno-0-44" href="#__codelineno-0-44"></a>
|
||||
<a id="__codelineno-0-45" name="__codelineno-0-45" href="#__codelineno-0-45"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">swRel</span><span class="p">.</span><span class="n">start</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-46" name="__codelineno-0-46" href="#__codelineno-0-46"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">swSrc</span><span class="p">.</span><span class="n">start</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-47" name="__codelineno-0-47" href="#__codelineno-0-47"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">swDst</span><span class="p">.</span><span class="n">start</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-48" name="__codelineno-0-48" href="#__codelineno-0-48"></a>
|
||||
<a id="__codelineno-0-49" name="__codelineno-0-49" href="#__codelineno-0-49"></a><span class="w"> </span><span class="k">let</span>
|
||||
<a id="__codelineno-0-50" name="__codelineno-0-50" href="#__codelineno-0-50"></a><span class="w"> </span><span class="c"># Create a relay address to swDst using swRel as the relay</span>
|
||||
<a id="__codelineno-0-51" name="__codelineno-0-51" href="#__codelineno-0-51"></a><span class="w"> </span><span class="n">addrs</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">MultiAddress</span>
|
||||
<a id="__codelineno-0-52" name="__codelineno-0-52" href="#__codelineno-0-52"></a><span class="w"> </span><span class="p">.</span><span class="n">init</span><span class="p">(</span>
|
||||
<a id="__codelineno-0-53" name="__codelineno-0-53" href="#__codelineno-0-53"></a><span class="w"> </span><span class="o">$</span><span class="n">swRel</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">addrs</span><span class="o">[</span><span class="mi">0</span><span class="o">]</span><span class="w"> </span><span class="o">&</span><span class="w"> </span><span class="s">"/p2p/"</span><span class="w"> </span><span class="o">&</span><span class="w"> </span><span class="o">$</span><span class="n">swRel</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">peerId</span><span class="w"> </span><span class="o">&</span><span class="w"> </span><span class="s">"/p2p-circuit"</span>
|
||||
<a id="__codelineno-0-54" name="__codelineno-0-54" href="#__codelineno-0-54"></a><span class="w"> </span><span class="p">)</span>
|
||||
<a id="__codelineno-0-55" name="__codelineno-0-55" href="#__codelineno-0-55"></a><span class="w"> </span><span class="p">.</span><span class="n">get</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-56" name="__codelineno-0-56" href="#__codelineno-0-56"></a>
|
||||
<a id="__codelineno-0-57" name="__codelineno-0-57" href="#__codelineno-0-57"></a><span class="w"> </span><span class="c"># Connect Dst to the relay</span>
|
||||
<a id="__codelineno-0-58" name="__codelineno-0-58" href="#__codelineno-0-58"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">swDst</span><span class="p">.</span><span class="n">connect</span><span class="p">(</span><span class="n">swRel</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="n">swRel</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">addrs</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-21" name="__codelineno-0-21" href="#__codelineno-0-21"></a><span class="w"> </span><span class="n">proto</span><span class="p">.</span><span class="n">handler</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">proc</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async</span>:<span class="w"> </span><span class="sx">(raises</span>:<span class="w"> </span><span class="sx">[]).} =</span>
|
||||
<a id="__codelineno-0-22" name="__codelineno-0-22" href="#__codelineno-0-22"></a><span class="sx"> try</span>:
|
||||
<a id="__codelineno-0-23" name="__codelineno-0-23" href="#__codelineno-0-23"></a><span class="w"> </span><span class="sx">var</span><span class="w"> </span><span class="sx">msg</span><span class="w"> </span><span class="sx">= string.fromBytes(await</span><span class="w"> </span><span class="sx">conn.readLp(1024))</span>
|
||||
<a id="__codelineno-0-24" name="__codelineno-0-24" href="#__codelineno-0-24"></a><span class="sx"> echo</span><span class="w"> </span><span class="sx">"1</span><span class="w"> </span><span class="sx">- Dst</span><span class="w"> </span><span class="sx">Received</span>:<span class="w"> </span><span class="sx">", msg</span>
|
||||
<a id="__codelineno-0-25" name="__codelineno-0-25" href="#__codelineno-0-25"></a><span class="w"> </span><span class="sx">assert</span><span class="w"> </span><span class="sx">"test1" == msg</span>
|
||||
<a id="__codelineno-0-26" name="__codelineno-0-26" href="#__codelineno-0-26"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.writeLp("test2")</span>
|
||||
<a id="__codelineno-0-27" name="__codelineno-0-27" href="#__codelineno-0-27"></a><span class="sx"> msg</span><span class="w"> </span><span class="sx">= string.fromBytes(await</span><span class="w"> </span><span class="sx">conn.readLp(1024))</span>
|
||||
<a id="__codelineno-0-28" name="__codelineno-0-28" href="#__codelineno-0-28"></a><span class="sx"> echo</span><span class="w"> </span><span class="sx">"2</span><span class="w"> </span><span class="sx">- Dst</span><span class="w"> </span><span class="sx">Received</span>:<span class="w"> </span><span class="sx">", msg</span>
|
||||
<a id="__codelineno-0-29" name="__codelineno-0-29" href="#__codelineno-0-29"></a><span class="w"> </span><span class="sx">assert</span><span class="w"> </span><span class="sx">"test3" == msg</span>
|
||||
<a id="__codelineno-0-30" name="__codelineno-0-30" href="#__codelineno-0-30"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.writeLp("test4")</span>
|
||||
<a id="__codelineno-0-31" name="__codelineno-0-31" href="#__codelineno-0-31"></a><span class="sx"> except</span>:
|
||||
<a id="__codelineno-0-32" name="__codelineno-0-32" href="#__codelineno-0-32"></a><span class="w"> </span><span class="sx">echo</span><span class="w"> </span><span class="sx">"exception</span><span class="w"> </span><span class="sx">in</span><span class="w"> </span><span class="sx">handler", getCurrentException().msg</span>
|
||||
<a id="__codelineno-0-33" name="__codelineno-0-33" href="#__codelineno-0-33"></a>
|
||||
<a id="__codelineno-0-34" name="__codelineno-0-34" href="#__codelineno-0-34"></a><span class="w"> </span><span class="sx">let</span>
|
||||
<a id="__codelineno-0-35" name="__codelineno-0-35" href="#__codelineno-0-35"></a><span class="w"> </span><span class="sx">relay</span><span class="w"> </span><span class="sx">= Relay.new()</span>
|
||||
<a id="__codelineno-0-36" name="__codelineno-0-36" href="#__codelineno-0-36"></a><span class="sx"> clSrc</span><span class="w"> </span><span class="sx">= RelayClient.new()</span>
|
||||
<a id="__codelineno-0-37" name="__codelineno-0-37" href="#__codelineno-0-37"></a><span class="sx"> clDst</span><span class="w"> </span><span class="sx">= RelayClient.new()</span>
|
||||
<a id="__codelineno-0-38" name="__codelineno-0-38" href="#__codelineno-0-38"></a>
|
||||
<a id="__codelineno-0-39" name="__codelineno-0-39" href="#__codelineno-0-39"></a><span class="sx"> # Create</span><span class="w"> </span><span class="sx">three</span><span class="w"> </span><span class="sx">hosts</span>,<span class="w"> </span><span class="sx">enable</span><span class="w"> </span><span class="sx">relay</span><span class="w"> </span><span class="sx">client</span><span class="w"> </span><span class="sx">on</span><span class="w"> </span><span class="sx">two</span><span class="w"> </span><span class="sx">of</span><span class="w"> </span><span class="sx">them.</span>
|
||||
<a id="__codelineno-0-40" name="__codelineno-0-40" href="#__codelineno-0-40"></a><span class="sx"> # The</span><span class="w"> </span><span class="sx">third</span><span class="w"> </span><span class="sx">one</span><span class="w"> </span><span class="sx">can</span><span class="w"> </span><span class="sx">relay</span><span class="w"> </span><span class="sx">connections</span><span class="w"> </span><span class="sx">for</span><span class="w"> </span><span class="sx">other</span><span class="w"> </span><span class="sx">peers.</span>
|
||||
<a id="__codelineno-0-41" name="__codelineno-0-41" href="#__codelineno-0-41"></a><span class="sx"> # RelayClient</span><span class="w"> </span><span class="sx">can</span><span class="w"> </span><span class="sx">use</span><span class="w"> </span><span class="sx">a</span><span class="w"> </span><span class="sx">relay</span>,<span class="w"> </span><span class="sx">Relay</span><span class="w"> </span><span class="sx">is</span><span class="w"> </span><span class="sx">a</span><span class="w"> </span><span class="sx">relay.</span>
|
||||
<a id="__codelineno-0-42" name="__codelineno-0-42" href="#__codelineno-0-42"></a><span class="sx"> swRel</span><span class="w"> </span><span class="sx">= createCircuitRelaySwitch(relay)</span>
|
||||
<a id="__codelineno-0-43" name="__codelineno-0-43" href="#__codelineno-0-43"></a><span class="sx"> swSrc</span><span class="w"> </span><span class="sx">= createCircuitRelaySwitch(clSrc)</span>
|
||||
<a id="__codelineno-0-44" name="__codelineno-0-44" href="#__codelineno-0-44"></a><span class="sx"> swDst</span><span class="w"> </span><span class="sx">= createCircuitRelaySwitch(clDst)</span>
|
||||
<a id="__codelineno-0-45" name="__codelineno-0-45" href="#__codelineno-0-45"></a>
|
||||
<a id="__codelineno-0-46" name="__codelineno-0-46" href="#__codelineno-0-46"></a><span class="sx"> swDst.mount(proto)</span>
|
||||
<a id="__codelineno-0-47" name="__codelineno-0-47" href="#__codelineno-0-47"></a>
|
||||
<a id="__codelineno-0-48" name="__codelineno-0-48" href="#__codelineno-0-48"></a><span class="sx"> await</span><span class="w"> </span><span class="sx">swRel.start()</span>
|
||||
<a id="__codelineno-0-49" name="__codelineno-0-49" href="#__codelineno-0-49"></a><span class="sx"> await</span><span class="w"> </span><span class="sx">swSrc.start()</span>
|
||||
<a id="__codelineno-0-50" name="__codelineno-0-50" href="#__codelineno-0-50"></a><span class="sx"> await</span><span class="w"> </span><span class="sx">swDst.start()</span>
|
||||
<a id="__codelineno-0-51" name="__codelineno-0-51" href="#__codelineno-0-51"></a>
|
||||
<a id="__codelineno-0-52" name="__codelineno-0-52" href="#__codelineno-0-52"></a><span class="sx"> let</span>
|
||||
<a id="__codelineno-0-53" name="__codelineno-0-53" href="#__codelineno-0-53"></a><span class="w"> </span><span class="sx"># Create</span><span class="w"> </span><span class="sx">a</span><span class="w"> </span><span class="sx">relay</span><span class="w"> </span><span class="sx">address</span><span class="w"> </span><span class="sx">to</span><span class="w"> </span><span class="sx">swDst</span><span class="w"> </span><span class="sx">using</span><span class="w"> </span><span class="sx">swRel</span><span class="w"> </span><span class="sx">as</span><span class="w"> </span><span class="sx">the</span><span class="w"> </span><span class="sx">relay</span>
|
||||
<a id="__codelineno-0-54" name="__codelineno-0-54" href="#__codelineno-0-54"></a><span class="w"> </span><span class="sx">addrs</span><span class="w"> </span><span class="sx">= MultiAddress</span>
|
||||
<a id="__codelineno-0-55" name="__codelineno-0-55" href="#__codelineno-0-55"></a><span class="w"> </span><span class="sx">.init(</span>
|
||||
<a id="__codelineno-0-56" name="__codelineno-0-56" href="#__codelineno-0-56"></a><span class="sx"> $swRel.peerInfo.addrs[0] & "/p2p/" & $swRel.peerInfo.peerId</span><span class="w"> </span><span class="sx">& "/p2p-circuit"</span>
|
||||
<a id="__codelineno-0-57" name="__codelineno-0-57" href="#__codelineno-0-57"></a><span class="sx"> )</span>
|
||||
<a id="__codelineno-0-58" name="__codelineno-0-58" href="#__codelineno-0-58"></a><span class="sx"> .get()</span>
|
||||
<a id="__codelineno-0-59" name="__codelineno-0-59" href="#__codelineno-0-59"></a>
|
||||
<a id="__codelineno-0-60" name="__codelineno-0-60" href="#__codelineno-0-60"></a><span class="w"> </span><span class="c"># Dst reserve a slot on the relay.</span>
|
||||
<a id="__codelineno-0-61" name="__codelineno-0-61" href="#__codelineno-0-61"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">rsvp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">clDst</span><span class="p">.</span><span class="n">reserve</span><span class="p">(</span><span class="n">swRel</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="n">swRel</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">addrs</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-60" name="__codelineno-0-60" href="#__codelineno-0-60"></a><span class="sx"> # Connect</span><span class="w"> </span><span class="sx">Dst</span><span class="w"> </span><span class="sx">to</span><span class="w"> </span><span class="sx">the</span><span class="w"> </span><span class="sx">relay</span>
|
||||
<a id="__codelineno-0-61" name="__codelineno-0-61" href="#__codelineno-0-61"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">swDst.connect(swRel.peerInfo.peerId</span>,<span class="w"> </span><span class="sx">swRel.peerInfo.addrs)</span>
|
||||
<a id="__codelineno-0-62" name="__codelineno-0-62" href="#__codelineno-0-62"></a>
|
||||
<a id="__codelineno-0-63" name="__codelineno-0-63" href="#__codelineno-0-63"></a><span class="w"> </span><span class="c"># Src dial Dst using the relay</span>
|
||||
<a id="__codelineno-0-64" name="__codelineno-0-64" href="#__codelineno-0-64"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">conn</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">swSrc</span><span class="p">.</span><span class="n">dial</span><span class="p">(</span><span class="n">swDst</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="o">@[</span><span class="n">addrs</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">customProtoCodec</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-63" name="__codelineno-0-63" href="#__codelineno-0-63"></a><span class="sx"> # Dst</span><span class="w"> </span><span class="sx">reserve</span><span class="w"> </span><span class="sx">a</span><span class="w"> </span><span class="sx">slot</span><span class="w"> </span><span class="sx">on</span><span class="w"> </span><span class="sx">the</span><span class="w"> </span><span class="sx">relay.</span>
|
||||
<a id="__codelineno-0-64" name="__codelineno-0-64" href="#__codelineno-0-64"></a><span class="sx"> let</span><span class="w"> </span><span class="sx">rsvp</span><span class="w"> </span><span class="sx">= await</span><span class="w"> </span><span class="sx">clDst.reserve(swRel.peerInfo.peerId</span>,<span class="w"> </span><span class="sx">swRel.peerInfo.addrs)</span>
|
||||
<a id="__codelineno-0-65" name="__codelineno-0-65" href="#__codelineno-0-65"></a>
|
||||
<a id="__codelineno-0-66" name="__codelineno-0-66" href="#__codelineno-0-66"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="s">"test1"</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-67" name="__codelineno-0-67" href="#__codelineno-0-67"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="n">msg</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">string</span><span class="p">.</span><span class="n">fromBytes</span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">1024</span><span class="p">))</span>
|
||||
<a id="__codelineno-0-68" name="__codelineno-0-68" href="#__codelineno-0-68"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"1 - Src Received: "</span><span class="p">,</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-69" name="__codelineno-0-69" href="#__codelineno-0-69"></a><span class="w"> </span><span class="n">assert</span><span class="w"> </span><span class="s">"test2"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-70" name="__codelineno-0-70" href="#__codelineno-0-70"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="s">"test3"</span><span class="p">)</span>
|
||||
<a id="__codelineno-0-71" name="__codelineno-0-71" href="#__codelineno-0-71"></a><span class="w"> </span><span class="n">msg</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">string</span><span class="p">.</span><span class="n">fromBytes</span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">1024</span><span class="p">))</span>
|
||||
<a id="__codelineno-0-72" name="__codelineno-0-72" href="#__codelineno-0-72"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"2 - Src Received: "</span><span class="p">,</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-73" name="__codelineno-0-73" href="#__codelineno-0-73"></a><span class="w"> </span><span class="n">assert</span><span class="w"> </span><span class="s">"test4"</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">msg</span>
|
||||
<a id="__codelineno-0-74" name="__codelineno-0-74" href="#__codelineno-0-74"></a>
|
||||
<a id="__codelineno-0-75" name="__codelineno-0-75" href="#__codelineno-0-75"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">relay</span><span class="p">.</span><span class="n">stop</span><span class="p">()</span>
|
||||
<a id="__codelineno-0-76" name="__codelineno-0-76" href="#__codelineno-0-76"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">allFutures</span><span class="p">(</span><span class="n">swSrc</span><span class="p">.</span><span class="n">stop</span><span class="p">(),</span><span class="w"> </span><span class="n">swDst</span><span class="p">.</span><span class="n">stop</span><span class="p">(),</span><span class="w"> </span><span class="n">swRel</span><span class="p">.</span><span class="n">stop</span><span class="p">())</span>
|
||||
<a id="__codelineno-0-66" name="__codelineno-0-66" href="#__codelineno-0-66"></a><span class="sx"> # Src</span><span class="w"> </span><span class="sx">dial</span><span class="w"> </span><span class="sx">Dst</span><span class="w"> </span><span class="sx">using</span><span class="w"> </span><span class="sx">the</span><span class="w"> </span><span class="sx">relay</span>
|
||||
<a id="__codelineno-0-67" name="__codelineno-0-67" href="#__codelineno-0-67"></a><span class="w"> </span><span class="sx">let</span><span class="w"> </span><span class="sx">conn</span><span class="w"> </span><span class="sx">= await</span><span class="w"> </span><span class="sx">swSrc.dial(swDst.peerInfo.peerId</span>,<span class="w"> </span><span class="sx">@[addrs], customProtoCodec)</span>
|
||||
<a id="__codelineno-0-68" name="__codelineno-0-68" href="#__codelineno-0-68"></a>
|
||||
<a id="__codelineno-0-69" name="__codelineno-0-69" href="#__codelineno-0-69"></a><span class="sx"> await</span><span class="w"> </span><span class="sx">conn.writeLp("test1")</span>
|
||||
<a id="__codelineno-0-70" name="__codelineno-0-70" href="#__codelineno-0-70"></a><span class="sx"> var</span><span class="w"> </span><span class="sx">msg</span><span class="w"> </span><span class="sx">= string.fromBytes(await</span><span class="w"> </span><span class="sx">conn.readLp(1024))</span>
|
||||
<a id="__codelineno-0-71" name="__codelineno-0-71" href="#__codelineno-0-71"></a><span class="sx"> echo</span><span class="w"> </span><span class="sx">"1</span><span class="w"> </span><span class="sx">- Src</span><span class="w"> </span><span class="sx">Received</span>:<span class="w"> </span><span class="sx">", msg</span>
|
||||
<a id="__codelineno-0-72" name="__codelineno-0-72" href="#__codelineno-0-72"></a><span class="w"> </span><span class="sx">assert</span><span class="w"> </span><span class="sx">"test2" == msg</span>
|
||||
<a id="__codelineno-0-73" name="__codelineno-0-73" href="#__codelineno-0-73"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.writeLp("test3")</span>
|
||||
<a id="__codelineno-0-74" name="__codelineno-0-74" href="#__codelineno-0-74"></a><span class="sx"> msg</span><span class="w"> </span><span class="sx">= string.fromBytes(await</span><span class="w"> </span><span class="sx">conn.readLp(1024))</span>
|
||||
<a id="__codelineno-0-75" name="__codelineno-0-75" href="#__codelineno-0-75"></a><span class="sx"> echo</span><span class="w"> </span><span class="sx">"2</span><span class="w"> </span><span class="sx">- Src</span><span class="w"> </span><span class="sx">Received</span>:<span class="w"> </span><span class="sx">", msg</span>
|
||||
<a id="__codelineno-0-76" name="__codelineno-0-76" href="#__codelineno-0-76"></a><span class="w"> </span><span class="sx">assert</span><span class="w"> </span><span class="sx">"test4" == msg</span>
|
||||
<a id="__codelineno-0-77" name="__codelineno-0-77" href="#__codelineno-0-77"></a>
|
||||
<a id="__codelineno-0-78" name="__codelineno-0-78" href="#__codelineno-0-78"></a><span class="n">waitFor</span><span class="p">(</span><span class="n">main</span><span class="p">())</span>
|
||||
<a id="__codelineno-0-78" name="__codelineno-0-78" href="#__codelineno-0-78"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">relay.stop()</span>
|
||||
<a id="__codelineno-0-79" name="__codelineno-0-79" href="#__codelineno-0-79"></a><span class="sx"> await</span><span class="w"> </span><span class="sx">allFutures(swSrc.stop(), swDst.stop(), swRel.stop())</span>
|
||||
<a id="__codelineno-0-80" name="__codelineno-0-80" href="#__codelineno-0-80"></a>
|
||||
<a id="__codelineno-0-81" name="__codelineno-0-81" href="#__codelineno-0-81"></a><span class="sx">waitFor(main())</span>
|
||||
</code></pre></div>
|
||||
|
||||
|
||||
|
||||
@ -43,12 +43,15 @@ proc new(T: typedesc[ChatProto], c: Chat): T =
|
||||
let chatproto = T()
|
||||
|
||||
# create handler for incoming connection
|
||||
proc handle(stream: Connection, proto: string) {.async.} =
|
||||
if c.connected and not c.conn.closed:
|
||||
c.writeStdout "a chat session is already in progress - refusing incoming peer!"
|
||||
await stream.close()
|
||||
else:
|
||||
await c.handlePeer(stream)
|
||||
proc handle(stream: Connection, proto: string) {.async: (raises: []).} =
|
||||
try:
|
||||
if c.connected and not c.conn.closed:
|
||||
c.writeStdout "a chat session is already in progress - refusing incoming peer!"
|
||||
else:
|
||||
await c.handlePeer(stream)
|
||||
except:
|
||||
echo "exception in handler", getCurrentException().msg
|
||||
finally:
|
||||
await stream.close()
|
||||
|
||||
# assign the new handler
|
||||
|
||||
@ -11,12 +11,15 @@ type TestProto = ref object of LPProtocol # declare a custom protocol
|
||||
|
||||
proc new(T: typedesc[TestProto]): T =
|
||||
# every incoming connections will be in handled in this closure
|
||||
proc handle(conn: Connection, proto: string) {.async.} =
|
||||
echo "Got from remote - ", string.fromBytes(await conn.readLp(1024))
|
||||
await conn.writeLp("Roger p2p!")
|
||||
|
||||
# We must close the connections ourselves when we're done with it
|
||||
await conn.close()
|
||||
proc handle(conn: Connection, proto: string) {.async: (raises: []).} =
|
||||
try:
|
||||
echo "Got from remote - ", string.fromBytes(await conn.readLp(1024))
|
||||
await conn.writeLp("Roger p2p!")
|
||||
except:
|
||||
echo "exception in handler", getCurrentException().msg
|
||||
finally:
|
||||
# We must close the connections ourselves when we're done with it
|
||||
await conn.close()
|
||||
|
||||
return T.new(codecs = @[TestCodec], handler = handle)
|
||||
|
||||
|
||||
File diff suppressed because one or more lines are too long
@ -2,38 +2,38 @@
|
||||
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/circuitrelay/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/tutorial_1_connect/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/tutorial_2_customproto/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/tutorial_3_protobuf/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/tutorial_4_gossipsub/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/tutorial_5_discovery/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/tutorial_6_game/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
<url>
|
||||
<loc>https://status-im.github.io/nim-libp2p/docs/go-daemon/daemonapi/</loc>
|
||||
<lastmod>2025-02-24</lastmod>
|
||||
<lastmod>2025-02-25</lastmod>
|
||||
</url>
|
||||
</urlset>
|
||||
Binary file not shown.
@ -25,12 +25,15 @@ type TestProto = ref object of LPProtocol
|
||||
|
||||
proc new(T: typedesc[TestProto]): T =
|
||||
# every incoming connections will in be handled in this closure
|
||||
proc handle(conn: Connection, proto: string) {.async.} =
|
||||
proc handle(conn: Connection, proto: string) {.async: (raises: []).} =
|
||||
# Read up to 1024 bytes from this connection, and transform them into
|
||||
# a string
|
||||
echo "Got from remote - ", string.fromBytes(await conn.readLp(1024))
|
||||
# We must close the connections ourselves when we're done with it
|
||||
await conn.close()
|
||||
try:
|
||||
echo "Got from remote - ", string.fromBytes(await conn.readLp(1024))
|
||||
except:
|
||||
echo "exception in handler", getCurrentException().msg
|
||||
finally:
|
||||
await conn.close()
|
||||
|
||||
return T.new(codecs = @[TestCodec], handler = handle)
|
||||
|
||||
|
||||
@ -551,14 +551,17 @@ These two parts can be identical, but in our trivial protocol, the server will w
|
||||
<p>Let's start with the server part:
|
||||
<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="k">proc</span><span class="w"> </span><span class="nf">new</span><span class="p">(</span><span class="n">T</span><span class="p">:</span><span class="w"> </span><span class="n">typedesc</span><span class="o">[</span><span class="n">TestProto</span><span class="o">]</span><span class="p">):</span><span class="w"> </span><span class="n">T</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="w"> </span><span class="c"># every incoming connections will in be handled in this closure</span>
|
||||
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="w"> </span><span class="c"># Read up to 1024 bytes from this connection, and transform them into</span>
|
||||
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="w"> </span><span class="c"># a string</span>
|
||||
<a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"Got from remote - "</span><span class="p">,</span><span class="w"> </span><span class="nb">string</span><span class="p">.</span><span class="n">fromBytes</span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">1024</span><span class="p">))</span>
|
||||
<a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a><span class="w"> </span><span class="c"># We must close the connections ourselves when we're done with it</span>
|
||||
<a id="__codelineno-2-8" name="__codelineno-2-8" href="#__codelineno-2-8"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">close</span><span class="p">()</span>
|
||||
<a id="__codelineno-2-9" name="__codelineno-2-9" href="#__codelineno-2-9"></a>
|
||||
<a id="__codelineno-2-10" name="__codelineno-2-10" href="#__codelineno-2-10"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">T</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="n">codecs</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">@[</span><span class="n">TestCodec</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">handler</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">handle</span><span class="p">)</span>
|
||||
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async</span>:<span class="w"> </span><span class="sx">(raises</span>:<span class="w"> </span><span class="sx">[]).} =</span>
|
||||
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="sx"> # Read</span><span class="w"> </span><span class="sx">up</span><span class="w"> </span><span class="sx">to</span><span class="w"> </span><span class="sx">1024</span><span class="w"> </span><span class="sx">bytes</span><span class="w"> </span><span class="sx">from</span><span class="w"> </span><span class="sx">this</span><span class="w"> </span><span class="sx">connection</span>,<span class="w"> </span><span class="sx">and</span><span class="w"> </span><span class="sx">transform</span><span class="w"> </span><span class="sx">them</span><span class="w"> </span><span class="sx">into</span>
|
||||
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="w"> </span><span class="sx"># a</span><span class="w"> </span><span class="sx">string</span>
|
||||
<a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a><span class="w"> </span><span class="sx">try</span>:
|
||||
<a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a><span class="w"> </span><span class="sx">echo</span><span class="w"> </span><span class="sx">"Got</span><span class="w"> </span><span class="sx">from</span><span class="w"> </span><span class="sx">remote</span><span class="w"> </span><span class="sx">- ", string.fromBytes(await</span><span class="w"> </span><span class="sx">conn.readLp(1024))</span>
|
||||
<a id="__codelineno-2-8" name="__codelineno-2-8" href="#__codelineno-2-8"></a><span class="sx"> except</span>:
|
||||
<a id="__codelineno-2-9" name="__codelineno-2-9" href="#__codelineno-2-9"></a><span class="w"> </span><span class="sx">echo</span><span class="w"> </span><span class="sx">"exception</span><span class="w"> </span><span class="sx">in</span><span class="w"> </span><span class="sx">handler", getCurrentException().msg</span>
|
||||
<a id="__codelineno-2-10" name="__codelineno-2-10" href="#__codelineno-2-10"></a><span class="w"> </span><span class="sx">finally</span>:
|
||||
<a id="__codelineno-2-11" name="__codelineno-2-11" href="#__codelineno-2-11"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.close()</span>
|
||||
<a id="__codelineno-2-12" name="__codelineno-2-12" href="#__codelineno-2-12"></a>
|
||||
<a id="__codelineno-2-13" name="__codelineno-2-13" href="#__codelineno-2-13"></a><span class="sx"> return</span><span class="w"> </span><span class="sx">T.new(codecs</span><span class="w"> </span><span class="sx">= @[TestCodec], handler</span><span class="w"> </span><span class="sx">= handle)</span>
|
||||
</code></pre></div>
|
||||
This is a constructor for our <code>TestProto</code>, that will specify our <code>codecs</code> and a <code>handler</code>, which will be called for each incoming peer asking for this protocol.
|
||||
In our handle, we simply read a message from the connection and <code>echo</code> it.</p>
|
||||
|
||||
@ -108,12 +108,16 @@ type
|
||||
|
||||
proc new(_: typedesc[MetricProto], cb: MetricCallback): MetricProto =
|
||||
var res: MetricProto
|
||||
proc handle(conn: Connection, proto: string) {.async.} =
|
||||
let
|
||||
metrics = await res.metricGetter()
|
||||
asProtobuf = metrics.encode()
|
||||
await conn.writeLp(asProtobuf.buffer)
|
||||
await conn.close()
|
||||
proc handle(conn: Connection, proto: string) {.async: (raises: []).} =
|
||||
try:
|
||||
let
|
||||
metrics = await res.metricGetter()
|
||||
asProtobuf = metrics.encode()
|
||||
await conn.writeLp(asProtobuf.buffer)
|
||||
except:
|
||||
echo "exception in handler", getCurrentException().msg
|
||||
finally:
|
||||
await conn.close()
|
||||
|
||||
res = MetricProto.new(@["/metric-getter/1.0.0"], handle)
|
||||
res.metricGetter = cb
|
||||
|
||||
@ -723,22 +723,26 @@ that you may or may not prefer.</p>
|
||||
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a>
|
||||
<a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="k">proc</span><span class="w"> </span><span class="nf">new</span><span class="p">(</span><span class="err">_: typedesc[MetricProto], cb: MetricCallback): MetricProto =</span>
|
||||
<a id="__codelineno-3-7" name="__codelineno-3-7" href="#__codelineno-3-7"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="n">res</span><span class="p">:</span><span class="w"> </span><span class="n">MetricProto</span>
|
||||
<a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a><span class="w"> </span><span class="k">let</span>
|
||||
<a id="__codelineno-3-10" name="__codelineno-3-10" href="#__codelineno-3-10"></a><span class="w"> </span><span class="n">metrics</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="n">metricGetter</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-11" name="__codelineno-3-11" href="#__codelineno-3-11"></a><span class="w"> </span><span class="n">asProtobuf</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">metrics</span><span class="p">.</span><span class="n">encode</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-12" name="__codelineno-3-12" href="#__codelineno-3-12"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="n">asProtobuf</span><span class="p">.</span><span class="n">buffer</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-13" name="__codelineno-3-13" href="#__codelineno-3-13"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">close</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-14" name="__codelineno-3-14" href="#__codelineno-3-14"></a>
|
||||
<a id="__codelineno-3-15" name="__codelineno-3-15" href="#__codelineno-3-15"></a><span class="w"> </span><span class="n">res</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">MetricProto</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="o">@[</span><span class="s">"/metric-getter/1.0.0"</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">handle</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-16" name="__codelineno-3-16" href="#__codelineno-3-16"></a><span class="w"> </span><span class="n">res</span><span class="p">.</span><span class="n">metricGetter</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">cb</span>
|
||||
<a id="__codelineno-3-17" name="__codelineno-3-17" href="#__codelineno-3-17"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">res</span>
|
||||
<a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async</span>:<span class="w"> </span><span class="sx">(raises</span>:<span class="w"> </span><span class="sx">[]).} =</span>
|
||||
<a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a><span class="sx"> try</span>:
|
||||
<a id="__codelineno-3-10" name="__codelineno-3-10" href="#__codelineno-3-10"></a><span class="w"> </span><span class="sx">let</span>
|
||||
<a id="__codelineno-3-11" name="__codelineno-3-11" href="#__codelineno-3-11"></a><span class="w"> </span><span class="sx">metrics</span><span class="w"> </span><span class="sx">= await</span><span class="w"> </span><span class="sx">res.metricGetter()</span>
|
||||
<a id="__codelineno-3-12" name="__codelineno-3-12" href="#__codelineno-3-12"></a><span class="sx"> asProtobuf</span><span class="w"> </span><span class="sx">= metrics.encode()</span>
|
||||
<a id="__codelineno-3-13" name="__codelineno-3-13" href="#__codelineno-3-13"></a><span class="sx"> await</span><span class="w"> </span><span class="sx">conn.writeLp(asProtobuf.buffer)</span>
|
||||
<a id="__codelineno-3-14" name="__codelineno-3-14" href="#__codelineno-3-14"></a><span class="sx"> except</span>:
|
||||
<a id="__codelineno-3-15" name="__codelineno-3-15" href="#__codelineno-3-15"></a><span class="w"> </span><span class="sx">echo</span><span class="w"> </span><span class="sx">"exception</span><span class="w"> </span><span class="sx">in</span><span class="w"> </span><span class="sx">handler", getCurrentException().msg</span>
|
||||
<a id="__codelineno-3-16" name="__codelineno-3-16" href="#__codelineno-3-16"></a><span class="w"> </span><span class="sx">finally</span>:
|
||||
<a id="__codelineno-3-17" name="__codelineno-3-17" href="#__codelineno-3-17"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.close()</span>
|
||||
<a id="__codelineno-3-18" name="__codelineno-3-18" href="#__codelineno-3-18"></a>
|
||||
<a id="__codelineno-3-19" name="__codelineno-3-19" href="#__codelineno-3-19"></a><span class="k">proc</span><span class="w"> </span><span class="nf">fetch</span><span class="p">(</span><span class="n">p</span><span class="p">:</span><span class="w"> </span><span class="n">MetricProto</span><span class="p">,</span><span class="w"> </span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">):</span><span class="w"> </span><span class="n">Future</span><span class="o">[</span><span class="n">MetricList</span><span class="o">]</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-20" name="__codelineno-3-20" href="#__codelineno-3-20"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">protobuf</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">2048</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-21" name="__codelineno-3-21" href="#__codelineno-3-21"></a><span class="w"> </span><span class="c"># tryGet will raise an exception if the Result contains an error.</span>
|
||||
<a id="__codelineno-3-22" name="__codelineno-3-22" href="#__codelineno-3-22"></a><span class="w"> </span><span class="c"># It's useful to bridge between exception-world and result-world</span>
|
||||
<a id="__codelineno-3-23" name="__codelineno-3-23" href="#__codelineno-3-23"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">MetricList</span><span class="p">.</span><span class="n">decode</span><span class="p">(</span><span class="n">protobuf</span><span class="p">).</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-19" name="__codelineno-3-19" href="#__codelineno-3-19"></a><span class="sx"> res</span><span class="w"> </span><span class="sx">= MetricProto.new(@["/metric-getter/1.0.0"], handle)</span>
|
||||
<a id="__codelineno-3-20" name="__codelineno-3-20" href="#__codelineno-3-20"></a><span class="sx"> res.metricGetter</span><span class="w"> </span><span class="sx">= cb</span>
|
||||
<a id="__codelineno-3-21" name="__codelineno-3-21" href="#__codelineno-3-21"></a><span class="w"> </span><span class="sx">return</span><span class="w"> </span><span class="sx">res</span>
|
||||
<a id="__codelineno-3-22" name="__codelineno-3-22" href="#__codelineno-3-22"></a>
|
||||
<a id="__codelineno-3-23" name="__codelineno-3-23" href="#__codelineno-3-23"></a><span class="sx">proc</span><span class="w"> </span><span class="sx">fetch(p</span>:<span class="w"> </span><span class="sx">MetricProto</span>,<span class="w"> </span><span class="sx">conn</span>:<span class="w"> </span><span class="sx">Connection): Future[MetricList] {.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-24" name="__codelineno-3-24" href="#__codelineno-3-24"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">protobuf</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">2048</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-25" name="__codelineno-3-25" href="#__codelineno-3-25"></a><span class="w"> </span><span class="c"># tryGet will raise an exception if the Result contains an error.</span>
|
||||
<a id="__codelineno-3-26" name="__codelineno-3-26" href="#__codelineno-3-26"></a><span class="w"> </span><span class="c"># It's useful to bridge between exception-world and result-world</span>
|
||||
<a id="__codelineno-3-27" name="__codelineno-3-27" href="#__codelineno-3-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">MetricList</span><span class="p">.</span><span class="n">decode</span><span class="p">(</span><span class="n">protobuf</span><span class="p">).</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
</code></pre></div>
|
||||
We can now create our main procedure:
|
||||
<div class="highlight"><pre><span></span><code><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="k">proc</span><span class="w"> </span><span class="nf">main</span><span class="p">()</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
|
||||
@ -34,9 +34,13 @@ proc createSwitch(rdv: RendezVous = RendezVous.new()): Switch =
|
||||
const DumbCodec = "/dumb/proto/1.0.0"
|
||||
type DumbProto = ref object of LPProtocol
|
||||
proc new(T: typedesc[DumbProto], nodeNumber: int): T =
|
||||
proc handle(conn: Connection, proto: string) {.async.} =
|
||||
echo "Node", nodeNumber, " received: ", string.fromBytes(await conn.readLp(1024))
|
||||
await conn.close()
|
||||
proc handle(conn: Connection, proto: string) {.async: (raises: []).} =
|
||||
try:
|
||||
echo "Node", nodeNumber, " received: ", string.fromBytes(await conn.readLp(1024))
|
||||
except:
|
||||
echo "exception in handler", getCurrentException().msg
|
||||
finally:
|
||||
await conn.close()
|
||||
|
||||
return T.new(codecs = @[DumbCodec], handler = handle)
|
||||
|
||||
|
||||
@ -620,11 +620,15 @@ We'll not use newStandardSwitch this time as we need the discovery protocol
|
||||
<a id="__codelineno-1-13" name="__codelineno-1-13" href="#__codelineno-1-13"></a><span class="k">const</span><span class="w"> </span><span class="n">DumbCodec</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">"/dumb/proto/1.0.0"</span>
|
||||
<a id="__codelineno-1-14" name="__codelineno-1-14" href="#__codelineno-1-14"></a><span class="k">type</span><span class="w"> </span><span class="n">DumbProto</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">ref</span><span class="w"> </span><span class="k">object</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="n">LPProtocol</span>
|
||||
<a id="__codelineno-1-15" name="__codelineno-1-15" href="#__codelineno-1-15"></a><span class="k">proc</span><span class="w"> </span><span class="nf">new</span><span class="p">(</span><span class="n">T</span><span class="p">:</span><span class="w"> </span><span class="n">typedesc</span><span class="o">[</span><span class="n">DumbProto</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">nodeNumber</span><span class="p">:</span><span class="w"> </span><span class="nb">int</span><span class="p">):</span><span class="w"> </span><span class="n">T</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-1-16" name="__codelineno-1-16" href="#__codelineno-1-16"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-1-17" name="__codelineno-1-17" href="#__codelineno-1-17"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"Node"</span><span class="p">,</span><span class="w"> </span><span class="n">nodeNumber</span><span class="p">,</span><span class="w"> </span><span class="s">" received: "</span><span class="p">,</span><span class="w"> </span><span class="nb">string</span><span class="p">.</span><span class="n">fromBytes</span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">1024</span><span class="p">))</span>
|
||||
<a id="__codelineno-1-18" name="__codelineno-1-18" href="#__codelineno-1-18"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">close</span><span class="p">()</span>
|
||||
<a id="__codelineno-1-19" name="__codelineno-1-19" href="#__codelineno-1-19"></a>
|
||||
<a id="__codelineno-1-20" name="__codelineno-1-20" href="#__codelineno-1-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">T</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="n">codecs</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">@[</span><span class="n">DumbCodec</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">handler</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">handle</span><span class="p">)</span>
|
||||
<a id="__codelineno-1-16" name="__codelineno-1-16" href="#__codelineno-1-16"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async</span>:<span class="w"> </span><span class="sx">(raises</span>:<span class="w"> </span><span class="sx">[]).} =</span>
|
||||
<a id="__codelineno-1-17" name="__codelineno-1-17" href="#__codelineno-1-17"></a><span class="sx"> try</span>:
|
||||
<a id="__codelineno-1-18" name="__codelineno-1-18" href="#__codelineno-1-18"></a><span class="w"> </span><span class="sx">echo</span><span class="w"> </span><span class="sx">"Node", nodeNumber</span>,<span class="w"> </span><span class="sx">" received</span>:<span class="w"> </span><span class="sx">", string.fromBytes(await</span><span class="w"> </span><span class="sx">conn.readLp(1024))</span>
|
||||
<a id="__codelineno-1-19" name="__codelineno-1-19" href="#__codelineno-1-19"></a><span class="sx"> except</span>:
|
||||
<a id="__codelineno-1-20" name="__codelineno-1-20" href="#__codelineno-1-20"></a><span class="w"> </span><span class="sx">echo</span><span class="w"> </span><span class="sx">"exception</span><span class="w"> </span><span class="sx">in</span><span class="w"> </span><span class="sx">handler", getCurrentException().msg</span>
|
||||
<a id="__codelineno-1-21" name="__codelineno-1-21" href="#__codelineno-1-21"></a><span class="w"> </span><span class="sx">finally</span>:
|
||||
<a id="__codelineno-1-22" name="__codelineno-1-22" href="#__codelineno-1-22"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.close()</span>
|
||||
<a id="__codelineno-1-23" name="__codelineno-1-23" href="#__codelineno-1-23"></a>
|
||||
<a id="__codelineno-1-24" name="__codelineno-1-24" href="#__codelineno-1-24"></a><span class="sx"> return</span><span class="w"> </span><span class="sx">T.new(codecs</span><span class="w"> </span><span class="sx">= @[DumbCodec], handler</span><span class="w"> </span><span class="sx">= handle)</span>
|
||||
</code></pre></div></p>
|
||||
<h2 id="bootnodes">Bootnodes</h2>
|
||||
<p>The first time a p2p program is ran, he needs to know how to join
|
||||
|
||||
@ -152,21 +152,24 @@ proc draw(g: Game) =
|
||||
## peer know that we are available, check that he is also available,
|
||||
## and launch the game.
|
||||
proc new(T: typedesc[GameProto], g: Game): T =
|
||||
proc handle(conn: Connection, proto: string) {.async.} =
|
||||
proc handle(conn: Connection, proto: string) {.async: (raises: []).} =
|
||||
defer:
|
||||
await conn.closeWithEof()
|
||||
if g.peerFound.finished or g.hasCandidate:
|
||||
await conn.close()
|
||||
return
|
||||
g.hasCandidate = true
|
||||
await conn.writeLp("ok")
|
||||
if "ok" != string.fromBytes(await conn.readLp(1024)):
|
||||
g.hasCandidate = false
|
||||
return
|
||||
g.peerFound.complete(conn)
|
||||
# The handler of a protocol must wait for the stream to
|
||||
# be finished before returning
|
||||
await conn.join()
|
||||
try:
|
||||
if g.peerFound.finished or g.hasCandidate:
|
||||
await conn.close()
|
||||
return
|
||||
g.hasCandidate = true
|
||||
await conn.writeLp("ok")
|
||||
if "ok" != string.fromBytes(await conn.readLp(1024)):
|
||||
g.hasCandidate = false
|
||||
return
|
||||
g.peerFound.complete(conn)
|
||||
# The handler of a protocol must wait for the stream to
|
||||
# be finished before returning
|
||||
await conn.join()
|
||||
except:
|
||||
echo "exception in handler", getCurrentException().msg
|
||||
|
||||
return T.new(codecs = @["/tron/1.0.0"], handler = handle)
|
||||
|
||||
|
||||
@ -751,128 +751,131 @@ broadcasting his address.</p>
|
||||
peer know that we are available, check that he is also available,
|
||||
and launch the game.
|
||||
<div class="highlight"><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="k">proc</span><span class="w"> </span><span class="nf">new</span><span class="p">(</span><span class="n">T</span><span class="p">:</span><span class="w"> </span><span class="n">typedesc</span><span class="o">[</span><span class="n">GameProto</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">g</span><span class="p">:</span><span class="w"> </span><span class="n">Game</span><span class="p">):</span><span class="w"> </span><span class="n">T</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="w"> </span><span class="k">defer</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">closeWithEof</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span><span class="p">.</span><span class="n">finished</span><span class="w"> </span><span class="ow">or</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">close</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-7" name="__codelineno-3-7" href="#__codelineno-3-7"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">true</span>
|
||||
<a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="s">"ok"</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-10" name="__codelineno-3-10" href="#__codelineno-3-10"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="s">"ok"</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="nb">string</span><span class="p">.</span><span class="n">fromBytes</span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">1024</span><span class="p">)):</span>
|
||||
<a id="__codelineno-3-11" name="__codelineno-3-11" href="#__codelineno-3-11"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<a id="__codelineno-3-12" name="__codelineno-3-12" href="#__codelineno-3-12"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-3-13" name="__codelineno-3-13" href="#__codelineno-3-13"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span><span class="p">.</span><span class="n">complete</span><span class="p">(</span><span class="n">conn</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-14" name="__codelineno-3-14" href="#__codelineno-3-14"></a><span class="w"> </span><span class="c"># The handler of a protocol must wait for the stream to</span>
|
||||
<a id="__codelineno-3-15" name="__codelineno-3-15" href="#__codelineno-3-15"></a><span class="w"> </span><span class="c"># be finished before returning</span>
|
||||
<a id="__codelineno-3-16" name="__codelineno-3-16" href="#__codelineno-3-16"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">conn</span><span class="p">.</span><span class="n">join</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-17" name="__codelineno-3-17" href="#__codelineno-3-17"></a>
|
||||
<a id="__codelineno-3-18" name="__codelineno-3-18" href="#__codelineno-3-18"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">T</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="n">codecs</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">@[</span><span class="s">"/tron/1.0.0"</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">handler</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">handle</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-19" name="__codelineno-3-19" href="#__codelineno-3-19"></a>
|
||||
<a id="__codelineno-3-20" name="__codelineno-3-20" href="#__codelineno-3-20"></a><span class="k">proc</span><span class="w"> </span><span class="nf">networking</span><span class="p">(</span><span class="n">g</span><span class="p">:</span><span class="w"> </span><span class="n">Game</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-21" name="__codelineno-3-21" href="#__codelineno-3-21"></a><span class="w"> </span><span class="c"># Create our switch, similar to the GossipSub example and</span>
|
||||
<a id="__codelineno-3-22" name="__codelineno-3-22" href="#__codelineno-3-22"></a><span class="w"> </span><span class="c"># the Discovery examples combined</span>
|
||||
<a id="__codelineno-3-23" name="__codelineno-3-23" href="#__codelineno-3-23"></a><span class="w"> </span><span class="k">let</span>
|
||||
<a id="__codelineno-3-24" name="__codelineno-3-24" href="#__codelineno-3-24"></a><span class="w"> </span><span class="n">rdv</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">RendezVous</span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-25" name="__codelineno-3-25" href="#__codelineno-3-25"></a><span class="w"> </span><span class="n">switch</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">SwitchBuilder</span>
|
||||
<a id="__codelineno-3-26" name="__codelineno-3-26" href="#__codelineno-3-26"></a><span class="w"> </span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-27" name="__codelineno-3-27" href="#__codelineno-3-27"></a><span class="w"> </span><span class="p">.</span><span class="n">withRng</span><span class="p">(</span><span class="n">newRng</span><span class="p">())</span>
|
||||
<a id="__codelineno-3-28" name="__codelineno-3-28" href="#__codelineno-3-28"></a><span class="w"> </span><span class="p">.</span><span class="n">withAddresses</span><span class="p">(</span><span class="o">@[</span><span class="n">MultiAddress</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="s">"/ip4/0.0.0.0/tcp/0"</span><span class="p">).</span><span class="n">tryGet</span><span class="p">()</span><span class="o">]</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-29" name="__codelineno-3-29" href="#__codelineno-3-29"></a><span class="w"> </span><span class="p">.</span><span class="n">withTcpTransport</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-30" name="__codelineno-3-30" href="#__codelineno-3-30"></a><span class="w"> </span><span class="p">.</span><span class="n">withYamux</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-31" name="__codelineno-3-31" href="#__codelineno-3-31"></a><span class="w"> </span><span class="p">.</span><span class="n">withNoise</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-32" name="__codelineno-3-32" href="#__codelineno-3-32"></a><span class="w"> </span><span class="p">.</span><span class="n">withRendezVous</span><span class="p">(</span><span class="n">rdv</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-33" name="__codelineno-3-33" href="#__codelineno-3-33"></a><span class="w"> </span><span class="p">.</span><span class="n">build</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-34" name="__codelineno-3-34" href="#__codelineno-3-34"></a><span class="w"> </span><span class="n">dm</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">DiscoveryManager</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-35" name="__codelineno-3-35" href="#__codelineno-3-35"></a><span class="w"> </span><span class="n">gameProto</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GameProto</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="n">g</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-36" name="__codelineno-3-36" href="#__codelineno-3-36"></a><span class="w"> </span><span class="n">gossip</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GossipSub</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="n">switch</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">switch</span><span class="p">,</span><span class="w"> </span><span class="n">triggerSelf</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-37" name="__codelineno-3-37" href="#__codelineno-3-37"></a><span class="w"> </span><span class="n">dm</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="n">RendezVousInterface</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="n">rdv</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-38" name="__codelineno-3-38" href="#__codelineno-3-38"></a>
|
||||
<a id="__codelineno-3-39" name="__codelineno-3-39" href="#__codelineno-3-39"></a><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">mount</span><span class="p">(</span><span class="n">gossip</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-40" name="__codelineno-3-40" href="#__codelineno-3-40"></a><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">mount</span><span class="p">(</span><span class="n">gameProto</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="w"> </span><span class="k">proc</span><span class="w"> </span><span class="nf">handle</span><span class="p">(</span><span class="n">conn</span><span class="p">:</span><span class="w"> </span><span class="n">Connection</span><span class="p">,</span><span class="w"> </span><span class="n">proto</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async</span>:<span class="w"> </span><span class="sx">(raises</span>:<span class="w"> </span><span class="sx">[]).} =</span>
|
||||
<a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="sx"> defer</span>:
|
||||
<a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.closeWithEof()</span>
|
||||
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="sx"> try</span>:
|
||||
<a id="__codelineno-3-6" name="__codelineno-3-6" href="#__codelineno-3-6"></a><span class="w"> </span><span class="sx">if</span><span class="w"> </span><span class="sx">g.peerFound.finished</span><span class="w"> </span><span class="sx">or</span><span class="w"> </span><span class="sx">g.hasCandidate</span>:
|
||||
<a id="__codelineno-3-7" name="__codelineno-3-7" href="#__codelineno-3-7"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.close()</span>
|
||||
<a id="__codelineno-3-8" name="__codelineno-3-8" href="#__codelineno-3-8"></a><span class="sx"> return</span>
|
||||
<a id="__codelineno-3-9" name="__codelineno-3-9" href="#__codelineno-3-9"></a><span class="w"> </span><span class="sx">g.hasCandidate</span><span class="w"> </span><span class="sx">= true</span>
|
||||
<a id="__codelineno-3-10" name="__codelineno-3-10" href="#__codelineno-3-10"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.writeLp("ok")</span>
|
||||
<a id="__codelineno-3-11" name="__codelineno-3-11" href="#__codelineno-3-11"></a><span class="sx"> if</span><span class="w"> </span><span class="sx">"ok" != string.fromBytes(await</span><span class="w"> </span><span class="sx">conn.readLp(1024)):</span>
|
||||
<a id="__codelineno-3-12" name="__codelineno-3-12" href="#__codelineno-3-12"></a><span class="sx"> g.hasCandidate</span><span class="w"> </span><span class="sx">= false</span>
|
||||
<a id="__codelineno-3-13" name="__codelineno-3-13" href="#__codelineno-3-13"></a><span class="w"> </span><span class="sx">return</span>
|
||||
<a id="__codelineno-3-14" name="__codelineno-3-14" href="#__codelineno-3-14"></a><span class="w"> </span><span class="sx">g.peerFound.complete(conn)</span>
|
||||
<a id="__codelineno-3-15" name="__codelineno-3-15" href="#__codelineno-3-15"></a><span class="sx"> # The</span><span class="w"> </span><span class="sx">handler</span><span class="w"> </span><span class="sx">of</span><span class="w"> </span><span class="sx">a</span><span class="w"> </span><span class="sx">protocol</span><span class="w"> </span><span class="sx">must</span><span class="w"> </span><span class="sx">wait</span><span class="w"> </span><span class="sx">for</span><span class="w"> </span><span class="sx">the</span><span class="w"> </span><span class="sx">stream</span><span class="w"> </span><span class="sx">to</span>
|
||||
<a id="__codelineno-3-16" name="__codelineno-3-16" href="#__codelineno-3-16"></a><span class="w"> </span><span class="sx"># be</span><span class="w"> </span><span class="sx">finished</span><span class="w"> </span><span class="sx">before</span><span class="w"> </span><span class="sx">returning</span>
|
||||
<a id="__codelineno-3-17" name="__codelineno-3-17" href="#__codelineno-3-17"></a><span class="w"> </span><span class="sx">await</span><span class="w"> </span><span class="sx">conn.join()</span>
|
||||
<a id="__codelineno-3-18" name="__codelineno-3-18" href="#__codelineno-3-18"></a><span class="sx"> except</span>:
|
||||
<a id="__codelineno-3-19" name="__codelineno-3-19" href="#__codelineno-3-19"></a><span class="w"> </span><span class="sx">echo</span><span class="w"> </span><span class="sx">"exception</span><span class="w"> </span><span class="sx">in</span><span class="w"> </span><span class="sx">handler", getCurrentException().msg</span>
|
||||
<a id="__codelineno-3-20" name="__codelineno-3-20" href="#__codelineno-3-20"></a>
|
||||
<a id="__codelineno-3-21" name="__codelineno-3-21" href="#__codelineno-3-21"></a><span class="w"> </span><span class="sx">return</span><span class="w"> </span><span class="sx">T.new(codecs</span><span class="w"> </span><span class="sx">= @["/tron/1.0.0"], handler</span><span class="w"> </span><span class="sx">= handle)</span>
|
||||
<a id="__codelineno-3-22" name="__codelineno-3-22" href="#__codelineno-3-22"></a>
|
||||
<a id="__codelineno-3-23" name="__codelineno-3-23" href="#__codelineno-3-23"></a><span class="sx">proc</span><span class="w"> </span><span class="sx">networking(g</span>:<span class="w"> </span><span class="sx">Game) {.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-24" name="__codelineno-3-24" href="#__codelineno-3-24"></a><span class="w"> </span><span class="c"># Create our switch, similar to the GossipSub example and</span>
|
||||
<a id="__codelineno-3-25" name="__codelineno-3-25" href="#__codelineno-3-25"></a><span class="w"> </span><span class="c"># the Discovery examples combined</span>
|
||||
<a id="__codelineno-3-26" name="__codelineno-3-26" href="#__codelineno-3-26"></a><span class="w"> </span><span class="k">let</span>
|
||||
<a id="__codelineno-3-27" name="__codelineno-3-27" href="#__codelineno-3-27"></a><span class="w"> </span><span class="n">rdv</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">RendezVous</span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-28" name="__codelineno-3-28" href="#__codelineno-3-28"></a><span class="w"> </span><span class="n">switch</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">SwitchBuilder</span>
|
||||
<a id="__codelineno-3-29" name="__codelineno-3-29" href="#__codelineno-3-29"></a><span class="w"> </span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-30" name="__codelineno-3-30" href="#__codelineno-3-30"></a><span class="w"> </span><span class="p">.</span><span class="n">withRng</span><span class="p">(</span><span class="n">newRng</span><span class="p">())</span>
|
||||
<a id="__codelineno-3-31" name="__codelineno-3-31" href="#__codelineno-3-31"></a><span class="w"> </span><span class="p">.</span><span class="n">withAddresses</span><span class="p">(</span><span class="o">@[</span><span class="n">MultiAddress</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="s">"/ip4/0.0.0.0/tcp/0"</span><span class="p">).</span><span class="n">tryGet</span><span class="p">()</span><span class="o">]</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-32" name="__codelineno-3-32" href="#__codelineno-3-32"></a><span class="w"> </span><span class="p">.</span><span class="n">withTcpTransport</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-33" name="__codelineno-3-33" href="#__codelineno-3-33"></a><span class="w"> </span><span class="p">.</span><span class="n">withYamux</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-34" name="__codelineno-3-34" href="#__codelineno-3-34"></a><span class="w"> </span><span class="p">.</span><span class="n">withNoise</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-35" name="__codelineno-3-35" href="#__codelineno-3-35"></a><span class="w"> </span><span class="p">.</span><span class="n">withRendezVous</span><span class="p">(</span><span class="n">rdv</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-36" name="__codelineno-3-36" href="#__codelineno-3-36"></a><span class="w"> </span><span class="p">.</span><span class="n">build</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-37" name="__codelineno-3-37" href="#__codelineno-3-37"></a><span class="w"> </span><span class="n">dm</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">DiscoveryManager</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-38" name="__codelineno-3-38" href="#__codelineno-3-38"></a><span class="w"> </span><span class="n">gameProto</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GameProto</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="n">g</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-39" name="__codelineno-3-39" href="#__codelineno-3-39"></a><span class="w"> </span><span class="n">gossip</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">GossipSub</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="n">switch</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">switch</span><span class="p">,</span><span class="w"> </span><span class="n">triggerSelf</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-40" name="__codelineno-3-40" href="#__codelineno-3-40"></a><span class="w"> </span><span class="n">dm</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="n">RendezVousInterface</span><span class="p">.</span><span class="n">new</span><span class="p">(</span><span class="n">rdv</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-41" name="__codelineno-3-41" href="#__codelineno-3-41"></a>
|
||||
<a id="__codelineno-3-42" name="__codelineno-3-42" href="#__codelineno-3-42"></a><span class="w"> </span><span class="n">gossip</span><span class="p">.</span><span class="n">subscribe</span><span class="p">(</span>
|
||||
<a id="__codelineno-3-43" name="__codelineno-3-43" href="#__codelineno-3-43"></a><span class="w"> </span><span class="s">"/tron/matchmaking"</span><span class="p">,</span>
|
||||
<a id="__codelineno-3-44" name="__codelineno-3-44" href="#__codelineno-3-44"></a><span class="w"> </span><span class="n">proc</span><span class="p">(</span><span class="n">topic</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">,</span><span class="w"> </span><span class="n">data</span><span class="p">:</span><span class="w"> </span><span class="nb">seq</span><span class="o">[</span><span class="n">byte</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-45" name="__codelineno-3-45" href="#__codelineno-3-45"></a><span class="w"> </span><span class="c"># If we are still looking for an opponent,</span>
|
||||
<a id="__codelineno-3-46" name="__codelineno-3-46" href="#__codelineno-3-46"></a><span class="w"> </span><span class="c"># try to match anyone broadcasting its address</span>
|
||||
<a id="__codelineno-3-47" name="__codelineno-3-47" href="#__codelineno-3-47"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span><span class="p">.</span><span class="n">finished</span><span class="w"> </span><span class="ow">or</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-48" name="__codelineno-3-48" href="#__codelineno-3-48"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-3-49" name="__codelineno-3-49" href="#__codelineno-3-49"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">true</span>
|
||||
<a id="__codelineno-3-50" name="__codelineno-3-50" href="#__codelineno-3-50"></a>
|
||||
<a id="__codelineno-3-51" name="__codelineno-3-51" href="#__codelineno-3-51"></a><span class="w"> </span><span class="k">try</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-52" name="__codelineno-3-52" href="#__codelineno-3-52"></a><span class="w"> </span><span class="k">let</span>
|
||||
<a id="__codelineno-3-53" name="__codelineno-3-53" href="#__codelineno-3-53"></a><span class="w"> </span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="n">multiAddress</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">parseFullAddress</span><span class="p">(</span><span class="n">data</span><span class="p">).</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-54" name="__codelineno-3-54" href="#__codelineno-3-54"></a><span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">dial</span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="o">@[</span><span class="n">multiAddress</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">gameProto</span><span class="p">.</span><span class="n">codec</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-55" name="__codelineno-3-55" href="#__codelineno-3-55"></a>
|
||||
<a id="__codelineno-3-56" name="__codelineno-3-56" href="#__codelineno-3-56"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">stream</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="s">"ok"</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-57" name="__codelineno-3-57" href="#__codelineno-3-57"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">stream</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">10</span><span class="p">))</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="s">"ok"</span><span class="p">.</span><span class="n">toBytes</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-58" name="__codelineno-3-58" href="#__codelineno-3-58"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<a id="__codelineno-3-59" name="__codelineno-3-59" href="#__codelineno-3-59"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-3-60" name="__codelineno-3-60" href="#__codelineno-3-60"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span><span class="p">.</span><span class="n">complete</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-61" name="__codelineno-3-61" href="#__codelineno-3-61"></a><span class="w"> </span><span class="c"># We are "player 2"</span>
|
||||
<a id="__codelineno-3-62" name="__codelineno-3-62" href="#__codelineno-3-62"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="n">g</span><span class="p">.</span><span class="n">localPlayer</span><span class="p">,</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">remotePlayer</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-63" name="__codelineno-3-63" href="#__codelineno-3-63"></a><span class="w"> </span><span class="k">except</span><span class="w"> </span><span class="n">CatchableError</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="n">exc</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-64" name="__codelineno-3-64" href="#__codelineno-3-64"></a><span class="w"> </span><span class="k">discard</span><span class="p">,</span>
|
||||
<a id="__codelineno-3-65" name="__codelineno-3-65" href="#__codelineno-3-65"></a><span class="w"> </span><span class="p">)</span>
|
||||
<a id="__codelineno-3-66" name="__codelineno-3-66" href="#__codelineno-3-66"></a>
|
||||
<a id="__codelineno-3-67" name="__codelineno-3-67" href="#__codelineno-3-67"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">start</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-68" name="__codelineno-3-68" href="#__codelineno-3-68"></a><span class="w"> </span><span class="k">defer</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-69" name="__codelineno-3-69" href="#__codelineno-3-69"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">stop</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-70" name="__codelineno-3-70" href="#__codelineno-3-70"></a>
|
||||
<a id="__codelineno-3-71" name="__codelineno-3-71" href="#__codelineno-3-71"></a><span class="w"> </span><span class="c"># As explained in the last tutorial, we need a bootnode to be able</span>
|
||||
<a id="__codelineno-3-72" name="__codelineno-3-72" href="#__codelineno-3-72"></a><span class="w"> </span><span class="c"># to find peers. We could use any libp2p running rendezvous (or any</span>
|
||||
<a id="__codelineno-3-73" name="__codelineno-3-73" href="#__codelineno-3-73"></a><span class="w"> </span><span class="c"># node running tron). We will take it's MultiAddress from the command</span>
|
||||
<a id="__codelineno-3-74" name="__codelineno-3-74" href="#__codelineno-3-74"></a><span class="w"> </span><span class="c"># line parameters</span>
|
||||
<a id="__codelineno-3-75" name="__codelineno-3-75" href="#__codelineno-3-75"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">paramCount</span><span class="p">()</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="mi">0</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-76" name="__codelineno-3-76" href="#__codelineno-3-76"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="n">multiAddress</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">paramStr</span><span class="p">(</span><span class="mi">1</span><span class="p">).</span><span class="n">parseFullAddress</span><span class="p">().</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-77" name="__codelineno-3-77" href="#__codelineno-3-77"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">connect</span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="o">@[</span><span class="n">multiAddress</span><span class="o">]</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-78" name="__codelineno-3-78" href="#__codelineno-3-78"></a><span class="w"> </span><span class="k">else</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-79" name="__codelineno-3-79" href="#__codelineno-3-79"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"No bootnode provided, listening on: "</span><span class="p">,</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">fullAddrs</span><span class="p">.</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-80" name="__codelineno-3-80" href="#__codelineno-3-80"></a>
|
||||
<a id="__codelineno-3-81" name="__codelineno-3-81" href="#__codelineno-3-81"></a><span class="w"> </span><span class="c"># Discover peers from the bootnode, and connect to them</span>
|
||||
<a id="__codelineno-3-82" name="__codelineno-3-82" href="#__codelineno-3-82"></a><span class="w"> </span><span class="n">dm</span><span class="p">.</span><span class="n">advertise</span><span class="p">(</span><span class="n">RdvNamespace</span><span class="p">(</span><span class="s">"tron"</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-83" name="__codelineno-3-83" href="#__codelineno-3-83"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">discoveryQuery</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dm</span><span class="p">.</span><span class="n">request</span><span class="p">(</span><span class="n">RdvNamespace</span><span class="p">(</span><span class="s">"tron"</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-84" name="__codelineno-3-84" href="#__codelineno-3-84"></a><span class="w"> </span><span class="n">discoveryQuery</span><span class="p">.</span><span class="n">forEach</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-85" name="__codelineno-3-85" href="#__codelineno-3-85"></a><span class="w"> </span><span class="k">try</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-86" name="__codelineno-3-86" href="#__codelineno-3-86"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">connect</span><span class="p">(</span><span class="n">peer</span><span class="o">[</span><span class="n">PeerId</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">peer</span><span class="p">.</span><span class="n">getAll</span><span class="p">(</span><span class="n">MultiAddress</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-87" name="__codelineno-3-87" href="#__codelineno-3-87"></a><span class="w"> </span><span class="k">except</span><span class="w"> </span><span class="n">CatchableError</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="n">exc</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-88" name="__codelineno-3-88" href="#__codelineno-3-88"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"Failed to dial a peer: "</span><span class="p">,</span><span class="w"> </span><span class="n">exc</span><span class="p">.</span><span class="n">msg</span>
|
||||
<a id="__codelineno-3-89" name="__codelineno-3-89" href="#__codelineno-3-89"></a>
|
||||
<a id="__codelineno-3-90" name="__codelineno-3-90" href="#__codelineno-3-90"></a><span class="w"> </span><span class="c"># We will try to publish our address multiple times, in case</span>
|
||||
<a id="__codelineno-3-91" name="__codelineno-3-91" href="#__codelineno-3-91"></a><span class="w"> </span><span class="c"># it takes time to establish connections with other GossipSub peers</span>
|
||||
<a id="__codelineno-3-92" name="__codelineno-3-92" href="#__codelineno-3-92"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="n">published</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<a id="__codelineno-3-93" name="__codelineno-3-93" href="#__codelineno-3-93"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="ow">not</span><span class="w"> </span><span class="n">published</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-94" name="__codelineno-3-94" href="#__codelineno-3-94"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">sleepAsync</span><span class="p">(</span><span class="mf">500.</span><span class="n">milliseconds</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-95" name="__codelineno-3-95" href="#__codelineno-3-95"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">fullAddr</span><span class="w"> </span><span class="ow">in</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">fullAddrs</span><span class="p">.</span><span class="n">tryGet</span><span class="p">():</span>
|
||||
<a id="__codelineno-3-96" name="__codelineno-3-96" href="#__codelineno-3-96"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">gossip</span><span class="p">.</span><span class="n">publish</span><span class="p">(</span><span class="s">"/tron/matchmaking"</span><span class="p">,</span><span class="w"> </span><span class="n">fullAddr</span><span class="p">.</span><span class="n">bytes</span><span class="p">))</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">0</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-97" name="__codelineno-3-97" href="#__codelineno-3-97"></a><span class="w"> </span><span class="n">published</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<a id="__codelineno-3-98" name="__codelineno-3-98" href="#__codelineno-3-98"></a><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-3-99" name="__codelineno-3-99" href="#__codelineno-3-99"></a><span class="w"> </span><span class="n">published</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">true</span>
|
||||
<a id="__codelineno-3-100" name="__codelineno-3-100" href="#__codelineno-3-100"></a>
|
||||
<a id="__codelineno-3-101" name="__codelineno-3-101" href="#__codelineno-3-101"></a><span class="w"> </span><span class="n">discoveryQuery</span><span class="p">.</span><span class="n">stop</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-102" name="__codelineno-3-102" href="#__codelineno-3-102"></a>
|
||||
<a id="__codelineno-3-103" name="__codelineno-3-103" href="#__codelineno-3-103"></a><span class="w"> </span><span class="c"># We now wait for someone to connect to us (or for us to connect to someone)</span>
|
||||
<a id="__codelineno-3-104" name="__codelineno-3-104" href="#__codelineno-3-104"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">peerConn</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span>
|
||||
<a id="__codelineno-3-105" name="__codelineno-3-105" href="#__codelineno-3-105"></a><span class="w"> </span><span class="k">defer</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-106" name="__codelineno-3-106" href="#__codelineno-3-106"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">peerConn</span><span class="p">.</span><span class="n">closeWithEof</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-107" name="__codelineno-3-107" href="#__codelineno-3-107"></a>
|
||||
<a id="__codelineno-3-108" name="__codelineno-3-108" href="#__codelineno-3-108"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">mainLoop</span><span class="p">(</span><span class="n">peerConn</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-109" name="__codelineno-3-109" href="#__codelineno-3-109"></a>
|
||||
<a id="__codelineno-3-110" name="__codelineno-3-110" href="#__codelineno-3-110"></a><span class="k">let</span>
|
||||
<a id="__codelineno-3-111" name="__codelineno-3-111" href="#__codelineno-3-111"></a><span class="w"> </span><span class="n">game</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Game</span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-112" name="__codelineno-3-112" href="#__codelineno-3-112"></a><span class="w"> </span><span class="n">netFut</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">networking</span><span class="p">(</span><span class="n">game</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-113" name="__codelineno-3-113" href="#__codelineno-3-113"></a><span class="n">nico</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="s">"Status"</span><span class="p">,</span><span class="w"> </span><span class="s">"Tron"</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-114" name="__codelineno-3-114" href="#__codelineno-3-114"></a><span class="n">nico</span><span class="p">.</span><span class="n">createWindow</span><span class="p">(</span><span class="s">"Tron"</span><span class="p">,</span><span class="w"> </span><span class="n">mapSize</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="n">mapSize</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="kp">false</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-115" name="__codelineno-3-115" href="#__codelineno-3-115"></a><span class="n">nico</span><span class="p">.</span><span class="n">run</span><span class="p">(</span>
|
||||
<a id="__codelineno-3-116" name="__codelineno-3-116" href="#__codelineno-3-116"></a><span class="w"> </span><span class="n">proc</span><span class="p">()</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-117" name="__codelineno-3-117" href="#__codelineno-3-117"></a><span class="w"> </span><span class="k">discard</span><span class="p">,</span>
|
||||
<a id="__codelineno-3-118" name="__codelineno-3-118" href="#__codelineno-3-118"></a><span class="w"> </span><span class="n">proc</span><span class="p">(</span><span class="n">dt</span><span class="p">:</span><span class="w"> </span><span class="nb">float32</span><span class="p">)</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-119" name="__codelineno-3-119" href="#__codelineno-3-119"></a><span class="w"> </span><span class="n">game</span><span class="p">.</span><span class="n">update</span><span class="p">(</span><span class="n">dt</span><span class="p">),</span>
|
||||
<a id="__codelineno-3-120" name="__codelineno-3-120" href="#__codelineno-3-120"></a><span class="w"> </span><span class="n">proc</span><span class="p">()</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-121" name="__codelineno-3-121" href="#__codelineno-3-121"></a><span class="w"> </span><span class="n">game</span><span class="p">.</span><span class="n">draw</span><span class="p">(),</span>
|
||||
<a id="__codelineno-3-122" name="__codelineno-3-122" href="#__codelineno-3-122"></a><span class="p">)</span>
|
||||
<a id="__codelineno-3-123" name="__codelineno-3-123" href="#__codelineno-3-123"></a><span class="n">waitFor</span><span class="p">(</span><span class="n">netFut</span><span class="p">.</span><span class="n">cancelAndWait</span><span class="p">())</span>
|
||||
<a id="__codelineno-3-42" name="__codelineno-3-42" href="#__codelineno-3-42"></a><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">mount</span><span class="p">(</span><span class="n">gossip</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-43" name="__codelineno-3-43" href="#__codelineno-3-43"></a><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">mount</span><span class="p">(</span><span class="n">gameProto</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-44" name="__codelineno-3-44" href="#__codelineno-3-44"></a>
|
||||
<a id="__codelineno-3-45" name="__codelineno-3-45" href="#__codelineno-3-45"></a><span class="w"> </span><span class="n">gossip</span><span class="p">.</span><span class="n">subscribe</span><span class="p">(</span>
|
||||
<a id="__codelineno-3-46" name="__codelineno-3-46" href="#__codelineno-3-46"></a><span class="w"> </span><span class="s">"/tron/matchmaking"</span><span class="p">,</span>
|
||||
<a id="__codelineno-3-47" name="__codelineno-3-47" href="#__codelineno-3-47"></a><span class="w"> </span><span class="n">proc</span><span class="p">(</span><span class="n">topic</span><span class="p">:</span><span class="w"> </span><span class="nb">string</span><span class="p">,</span><span class="w"> </span><span class="n">data</span><span class="p">:</span><span class="w"> </span><span class="nb">seq</span><span class="o">[</span><span class="n">byte</span><span class="o">]</span><span class="p">)</span><span class="w"> </span><span class="sx">{.async.}</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-48" name="__codelineno-3-48" href="#__codelineno-3-48"></a><span class="w"> </span><span class="c"># If we are still looking for an opponent,</span>
|
||||
<a id="__codelineno-3-49" name="__codelineno-3-49" href="#__codelineno-3-49"></a><span class="w"> </span><span class="c"># try to match anyone broadcasting its address</span>
|
||||
<a id="__codelineno-3-50" name="__codelineno-3-50" href="#__codelineno-3-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span><span class="p">.</span><span class="n">finished</span><span class="w"> </span><span class="ow">or</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-51" name="__codelineno-3-51" href="#__codelineno-3-51"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-3-52" name="__codelineno-3-52" href="#__codelineno-3-52"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">true</span>
|
||||
<a id="__codelineno-3-53" name="__codelineno-3-53" href="#__codelineno-3-53"></a>
|
||||
<a id="__codelineno-3-54" name="__codelineno-3-54" href="#__codelineno-3-54"></a><span class="w"> </span><span class="k">try</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-55" name="__codelineno-3-55" href="#__codelineno-3-55"></a><span class="w"> </span><span class="k">let</span>
|
||||
<a id="__codelineno-3-56" name="__codelineno-3-56" href="#__codelineno-3-56"></a><span class="w"> </span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="n">multiAddress</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">parseFullAddress</span><span class="p">(</span><span class="n">data</span><span class="p">).</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-57" name="__codelineno-3-57" href="#__codelineno-3-57"></a><span class="w"> </span><span class="n">stream</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">dial</span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="o">@[</span><span class="n">multiAddress</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">gameProto</span><span class="p">.</span><span class="n">codec</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-58" name="__codelineno-3-58" href="#__codelineno-3-58"></a>
|
||||
<a id="__codelineno-3-59" name="__codelineno-3-59" href="#__codelineno-3-59"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">stream</span><span class="p">.</span><span class="n">writeLp</span><span class="p">(</span><span class="s">"ok"</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-60" name="__codelineno-3-60" href="#__codelineno-3-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">stream</span><span class="p">.</span><span class="n">readLp</span><span class="p">(</span><span class="mi">10</span><span class="p">))</span><span class="w"> </span><span class="o">!=</span><span class="w"> </span><span class="s">"ok"</span><span class="p">.</span><span class="n">toBytes</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-61" name="__codelineno-3-61" href="#__codelineno-3-61"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">hasCandidate</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<a id="__codelineno-3-62" name="__codelineno-3-62" href="#__codelineno-3-62"></a><span class="w"> </span><span class="k">return</span>
|
||||
<a id="__codelineno-3-63" name="__codelineno-3-63" href="#__codelineno-3-63"></a><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span><span class="p">.</span><span class="n">complete</span><span class="p">(</span><span class="n">stream</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-64" name="__codelineno-3-64" href="#__codelineno-3-64"></a><span class="w"> </span><span class="c"># We are "player 2"</span>
|
||||
<a id="__codelineno-3-65" name="__codelineno-3-65" href="#__codelineno-3-65"></a><span class="w"> </span><span class="n">swap</span><span class="p">(</span><span class="n">g</span><span class="p">.</span><span class="n">localPlayer</span><span class="p">,</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">remotePlayer</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-66" name="__codelineno-3-66" href="#__codelineno-3-66"></a><span class="w"> </span><span class="k">except</span><span class="w"> </span><span class="n">CatchableError</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="n">exc</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-67" name="__codelineno-3-67" href="#__codelineno-3-67"></a><span class="w"> </span><span class="k">discard</span><span class="p">,</span>
|
||||
<a id="__codelineno-3-68" name="__codelineno-3-68" href="#__codelineno-3-68"></a><span class="w"> </span><span class="p">)</span>
|
||||
<a id="__codelineno-3-69" name="__codelineno-3-69" href="#__codelineno-3-69"></a>
|
||||
<a id="__codelineno-3-70" name="__codelineno-3-70" href="#__codelineno-3-70"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">start</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-71" name="__codelineno-3-71" href="#__codelineno-3-71"></a><span class="w"> </span><span class="k">defer</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-72" name="__codelineno-3-72" href="#__codelineno-3-72"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">stop</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-73" name="__codelineno-3-73" href="#__codelineno-3-73"></a>
|
||||
<a id="__codelineno-3-74" name="__codelineno-3-74" href="#__codelineno-3-74"></a><span class="w"> </span><span class="c"># As explained in the last tutorial, we need a bootnode to be able</span>
|
||||
<a id="__codelineno-3-75" name="__codelineno-3-75" href="#__codelineno-3-75"></a><span class="w"> </span><span class="c"># to find peers. We could use any libp2p running rendezvous (or any</span>
|
||||
<a id="__codelineno-3-76" name="__codelineno-3-76" href="#__codelineno-3-76"></a><span class="w"> </span><span class="c"># node running tron). We will take it's MultiAddress from the command</span>
|
||||
<a id="__codelineno-3-77" name="__codelineno-3-77" href="#__codelineno-3-77"></a><span class="w"> </span><span class="c"># line parameters</span>
|
||||
<a id="__codelineno-3-78" name="__codelineno-3-78" href="#__codelineno-3-78"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="n">paramCount</span><span class="p">()</span><span class="w"> </span><span class="o">></span><span class="w"> </span><span class="mi">0</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-79" name="__codelineno-3-79" href="#__codelineno-3-79"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="n">multiAddress</span><span class="p">)</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">paramStr</span><span class="p">(</span><span class="mi">1</span><span class="p">).</span><span class="n">parseFullAddress</span><span class="p">().</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-80" name="__codelineno-3-80" href="#__codelineno-3-80"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">connect</span><span class="p">(</span><span class="n">peerId</span><span class="p">,</span><span class="w"> </span><span class="o">@[</span><span class="n">multiAddress</span><span class="o">]</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-81" name="__codelineno-3-81" href="#__codelineno-3-81"></a><span class="w"> </span><span class="k">else</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-82" name="__codelineno-3-82" href="#__codelineno-3-82"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"No bootnode provided, listening on: "</span><span class="p">,</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">fullAddrs</span><span class="p">.</span><span class="n">tryGet</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-83" name="__codelineno-3-83" href="#__codelineno-3-83"></a>
|
||||
<a id="__codelineno-3-84" name="__codelineno-3-84" href="#__codelineno-3-84"></a><span class="w"> </span><span class="c"># Discover peers from the bootnode, and connect to them</span>
|
||||
<a id="__codelineno-3-85" name="__codelineno-3-85" href="#__codelineno-3-85"></a><span class="w"> </span><span class="n">dm</span><span class="p">.</span><span class="n">advertise</span><span class="p">(</span><span class="n">RdvNamespace</span><span class="p">(</span><span class="s">"tron"</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-86" name="__codelineno-3-86" href="#__codelineno-3-86"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">discoveryQuery</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dm</span><span class="p">.</span><span class="n">request</span><span class="p">(</span><span class="n">RdvNamespace</span><span class="p">(</span><span class="s">"tron"</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-87" name="__codelineno-3-87" href="#__codelineno-3-87"></a><span class="w"> </span><span class="n">discoveryQuery</span><span class="p">.</span><span class="n">forEach</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-88" name="__codelineno-3-88" href="#__codelineno-3-88"></a><span class="w"> </span><span class="k">try</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-89" name="__codelineno-3-89" href="#__codelineno-3-89"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">connect</span><span class="p">(</span><span class="n">peer</span><span class="o">[</span><span class="n">PeerId</span><span class="o">]</span><span class="p">,</span><span class="w"> </span><span class="n">peer</span><span class="p">.</span><span class="n">getAll</span><span class="p">(</span><span class="n">MultiAddress</span><span class="p">))</span>
|
||||
<a id="__codelineno-3-90" name="__codelineno-3-90" href="#__codelineno-3-90"></a><span class="w"> </span><span class="k">except</span><span class="w"> </span><span class="n">CatchableError</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="n">exc</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-91" name="__codelineno-3-91" href="#__codelineno-3-91"></a><span class="w"> </span><span class="n">echo</span><span class="w"> </span><span class="s">"Failed to dial a peer: "</span><span class="p">,</span><span class="w"> </span><span class="n">exc</span><span class="p">.</span><span class="n">msg</span>
|
||||
<a id="__codelineno-3-92" name="__codelineno-3-92" href="#__codelineno-3-92"></a>
|
||||
<a id="__codelineno-3-93" name="__codelineno-3-93" href="#__codelineno-3-93"></a><span class="w"> </span><span class="c"># We will try to publish our address multiple times, in case</span>
|
||||
<a id="__codelineno-3-94" name="__codelineno-3-94" href="#__codelineno-3-94"></a><span class="w"> </span><span class="c"># it takes time to establish connections with other GossipSub peers</span>
|
||||
<a id="__codelineno-3-95" name="__codelineno-3-95" href="#__codelineno-3-95"></a><span class="w"> </span><span class="kd">var</span><span class="w"> </span><span class="n">published</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<a id="__codelineno-3-96" name="__codelineno-3-96" href="#__codelineno-3-96"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="ow">not</span><span class="w"> </span><span class="n">published</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-97" name="__codelineno-3-97" href="#__codelineno-3-97"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">sleepAsync</span><span class="p">(</span><span class="mf">500.</span><span class="n">milliseconds</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-98" name="__codelineno-3-98" href="#__codelineno-3-98"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="n">fullAddr</span><span class="w"> </span><span class="ow">in</span><span class="w"> </span><span class="n">switch</span><span class="p">.</span><span class="n">peerInfo</span><span class="p">.</span><span class="n">fullAddrs</span><span class="p">.</span><span class="n">tryGet</span><span class="p">():</span>
|
||||
<a id="__codelineno-3-99" name="__codelineno-3-99" href="#__codelineno-3-99"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">await</span><span class="w"> </span><span class="n">gossip</span><span class="p">.</span><span class="n">publish</span><span class="p">(</span><span class="s">"/tron/matchmaking"</span><span class="p">,</span><span class="w"> </span><span class="n">fullAddr</span><span class="p">.</span><span class="n">bytes</span><span class="p">))</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">0</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-100" name="__codelineno-3-100" href="#__codelineno-3-100"></a><span class="w"> </span><span class="n">published</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">false</span>
|
||||
<a id="__codelineno-3-101" name="__codelineno-3-101" href="#__codelineno-3-101"></a><span class="w"> </span><span class="k">break</span>
|
||||
<a id="__codelineno-3-102" name="__codelineno-3-102" href="#__codelineno-3-102"></a><span class="w"> </span><span class="n">published</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kp">true</span>
|
||||
<a id="__codelineno-3-103" name="__codelineno-3-103" href="#__codelineno-3-103"></a>
|
||||
<a id="__codelineno-3-104" name="__codelineno-3-104" href="#__codelineno-3-104"></a><span class="w"> </span><span class="n">discoveryQuery</span><span class="p">.</span><span class="n">stop</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-105" name="__codelineno-3-105" href="#__codelineno-3-105"></a>
|
||||
<a id="__codelineno-3-106" name="__codelineno-3-106" href="#__codelineno-3-106"></a><span class="w"> </span><span class="c"># We now wait for someone to connect to us (or for us to connect to someone)</span>
|
||||
<a id="__codelineno-3-107" name="__codelineno-3-107" href="#__codelineno-3-107"></a><span class="w"> </span><span class="k">let</span><span class="w"> </span><span class="n">peerConn</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">peerFound</span>
|
||||
<a id="__codelineno-3-108" name="__codelineno-3-108" href="#__codelineno-3-108"></a><span class="w"> </span><span class="k">defer</span><span class="p">:</span>
|
||||
<a id="__codelineno-3-109" name="__codelineno-3-109" href="#__codelineno-3-109"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">peerConn</span><span class="p">.</span><span class="n">closeWithEof</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-110" name="__codelineno-3-110" href="#__codelineno-3-110"></a>
|
||||
<a id="__codelineno-3-111" name="__codelineno-3-111" href="#__codelineno-3-111"></a><span class="w"> </span><span class="n">await</span><span class="w"> </span><span class="n">g</span><span class="p">.</span><span class="n">mainLoop</span><span class="p">(</span><span class="n">peerConn</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-112" name="__codelineno-3-112" href="#__codelineno-3-112"></a>
|
||||
<a id="__codelineno-3-113" name="__codelineno-3-113" href="#__codelineno-3-113"></a><span class="k">let</span>
|
||||
<a id="__codelineno-3-114" name="__codelineno-3-114" href="#__codelineno-3-114"></a><span class="w"> </span><span class="n">game</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Game</span><span class="p">.</span><span class="n">new</span><span class="p">()</span>
|
||||
<a id="__codelineno-3-115" name="__codelineno-3-115" href="#__codelineno-3-115"></a><span class="w"> </span><span class="n">netFut</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">networking</span><span class="p">(</span><span class="n">game</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-116" name="__codelineno-3-116" href="#__codelineno-3-116"></a><span class="n">nico</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="s">"Status"</span><span class="p">,</span><span class="w"> </span><span class="s">"Tron"</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-117" name="__codelineno-3-117" href="#__codelineno-3-117"></a><span class="n">nico</span><span class="p">.</span><span class="n">createWindow</span><span class="p">(</span><span class="s">"Tron"</span><span class="p">,</span><span class="w"> </span><span class="n">mapSize</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="n">mapSize</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">,</span><span class="w"> </span><span class="kp">false</span><span class="p">)</span>
|
||||
<a id="__codelineno-3-118" name="__codelineno-3-118" href="#__codelineno-3-118"></a><span class="n">nico</span><span class="p">.</span><span class="n">run</span><span class="p">(</span>
|
||||
<a id="__codelineno-3-119" name="__codelineno-3-119" href="#__codelineno-3-119"></a><span class="w"> </span><span class="n">proc</span><span class="p">()</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-120" name="__codelineno-3-120" href="#__codelineno-3-120"></a><span class="w"> </span><span class="k">discard</span><span class="p">,</span>
|
||||
<a id="__codelineno-3-121" name="__codelineno-3-121" href="#__codelineno-3-121"></a><span class="w"> </span><span class="n">proc</span><span class="p">(</span><span class="n">dt</span><span class="p">:</span><span class="w"> </span><span class="nb">float32</span><span class="p">)</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-122" name="__codelineno-3-122" href="#__codelineno-3-122"></a><span class="w"> </span><span class="n">game</span><span class="p">.</span><span class="n">update</span><span class="p">(</span><span class="n">dt</span><span class="p">),</span>
|
||||
<a id="__codelineno-3-123" name="__codelineno-3-123" href="#__codelineno-3-123"></a><span class="w"> </span><span class="n">proc</span><span class="p">()</span><span class="w"> </span><span class="o">=</span>
|
||||
<a id="__codelineno-3-124" name="__codelineno-3-124" href="#__codelineno-3-124"></a><span class="w"> </span><span class="n">game</span><span class="p">.</span><span class="n">draw</span><span class="p">(),</span>
|
||||
<a id="__codelineno-3-125" name="__codelineno-3-125" href="#__codelineno-3-125"></a><span class="p">)</span>
|
||||
<a id="__codelineno-3-126" name="__codelineno-3-126" href="#__codelineno-3-126"></a><span class="n">waitFor</span><span class="p">(</span><span class="n">netFut</span><span class="p">.</span><span class="n">cancelAndWait</span><span class="p">())</span>
|
||||
</code></pre></div>
|
||||
And that's it! If you want to run this code locally, the simplest way is to use the
|
||||
first node as a boot node for the second one. But you can also use any rendezvous node</p>
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user