move streams to own dir

libp2p/connection.nim

@@ -8,7 +8,7 @@
 ## those terms.
 
 import chronos
-import peerinfo, multiaddress, stream, peerinfo, varint, vbuffer
+import peerinfo, multiaddress, stream/lpstream, peerinfo, varint, vbuffer
 
 const DefaultReadSize: uint = 64*1024
 

libp2p/protocol.nim

@@ -8,7 +8,7 @@
 ## those terms.
 
 import chronos
-import connection, transport, stream, 
+import connection, transport,
        peerinfo, multiaddress
 
 type

libp2p/stream.nim

@@ -1,51 +0,0 @@
-## Nim-LibP2P
-## Copyright (c) 2018 Status Research & Development GmbH
-## Licensed under either of
-##  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
-##  * MIT license ([LICENSE-MIT](LICENSE-MIT))
-## at your option.
-## This file may not be copied, modified, or distributed except according to
-## those terms.
-
-import chronos
-
-type LPStream* = ref object of RootObj
-  closed*: bool
-
-method read*(s: LPStream, n = -1): Future[seq[byte]]
-  {.base, async, gcsafe.} =
-  discard
-
-method readExactly*(s: LPStream, pbytes: pointer, nbytes: int): Future[void]
-  {.base, async, gcsafe.} =
-  discard
-
-method readLine*(s: LPStream, limit = 0, sep = "\r\n"): Future[string]
-  {.base, async, gcsafe.} =
-  discard
-
-method readOnce*(s: LPStream, pbytes: pointer, nbytes: int): Future[int]
-  {.base, async, gcsafe.} =
-  discard
-
-method readUntil*(s: LPStream,
-                  pbytes: pointer, nbytes: int,
-                  sep: seq[byte]): Future[int]
-  {.base, async, gcsafe.} =
-  discard
-
-method write*(s: LPStream, pbytes: pointer, nbytes: int)
-  {.base, async, gcsafe.} =
-  discard
-
-method write*(s: LPStream, msg: string, msglen = -1)
-  {.base, async, gcsafe.} =
-  discard
-
-method write*(s: LPStream, msg: seq[byte], msglen = -1)
-  {.base, async, gcsafe.} =
-  discard
-
-method close*(s: LPStream)
-  {.base, async, gcsafe.} =
-  discard

libp2p/stream/chronosstream.nim

@@ -8,7 +8,7 @@
 ## those terms.
 
 import chronos
-import stream
+import lpstream
 
 type ChronosStream* = ref object of LPStream
     reader: AsyncStreamReader

libp2p/stream/lpstream.nim

@@ -0,0 +1,82 @@
+## Nim-LibP2P
+## Copyright (c) 2018 Status Research & Development GmbH
+## Licensed under either of
+##  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
+##  * MIT license ([LICENSE-MIT](LICENSE-MIT))
+## at your option.
+## This file may not be copied, modified, or distributed except according to
+## those terms.
+
+import chronos
+
+type 
+  LPStream* = ref object of RootObj
+    closed*: bool
+
+  LPStreamError* = object of CatchableError
+  LPStreamIncompleteError* = object of LPStreamError
+  LPStreamIncorrectError* = object of Defect
+  LPStreamLimitError* = object of LPStreamError
+  LPStreamReadError* = object of LPStreamError
+    par*: ref Exception
+  LPStreamWriteError* = object of LPStreamError
+    par*: ref Exception
+
+proc newAsyncStreamReadError*(p: ref Exception): ref Exception {.inline.} =
+  var w = newException(AsyncStreamReadError, "Read stream failed")
+  w.msg = w.msg & ", originated from [" & $p.name & "] " & p.msg
+  w.par = p
+  result = w
+
+proc newLPStreamWriteError*(p: ref Exception): ref Exception {.inline.} =
+  var w = newException(LPStreamWriteError, "Write stream failed")
+  w.msg = w.msg & ", originated from [" & $p.name & "] " & p.msg
+  w.par = p
+  result = w
+
+proc newLPStreamIncompleteError*(): ref Exception {.inline.} =
+  result = newException(LPStreamIncompleteError, "Incomplete data received")
+
+proc newLPStreamLimitError*(): ref Exception {.inline.} =
+  result = newException(LPStreamLimitError, "Buffer limit reached")
+
+proc newLPStreamIncorrectError*(m: string): ref Exception {.inline.} =
+  result = newException(LPStreamIncorrectError, m)
+
+method read*(s: LPStream, n = -1): Future[seq[byte]]
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method readExactly*(s: LPStream, pbytes: pointer, nbytes: int): Future[void]
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method readLine*(s: LPStream, limit = 0, sep = "\r\n"): Future[string]
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method readOnce*(s: LPStream, pbytes: pointer, nbytes: int): Future[int]
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method readUntil*(s: LPStream,
+                  pbytes: pointer, nbytes: int,
+                  sep: seq[byte]): Future[int]
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method write*(s: LPStream, pbytes: pointer, nbytes: int)
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method write*(s: LPStream, msg: string, msglen = -1)
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method write*(s: LPStream, msg: seq[byte], msglen = -1)
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")
+
+method close*(s: LPStream)
+  {.base, async, gcsafe.} =
+  assert(false, "not implemented!")

libp2p/switch.nim

@@ -9,7 +9,8 @@
 
 import tables, sequtils
 import chronos
-import connection, transport, stream, 
+import connection, transport, 
+       stream/lpstream, 
        multistream, protocol,
        peerinfo, multiaddress
 

libp2p/tcptransport.nim

@@ -10,7 +10,7 @@
 import chronos
 import transport, wire, connection,
        multiaddress, connection,
-       multicodec, chronosstream
+       multicodec, stream/chronosstream
 
 type TcpTransport* = ref object of Transport
   server*: StreamServer

tests/testmultistream.nim

@@ -1,7 +1,7 @@
 import unittest, strutils, sequtils, sugar
 import chronos
 import ../libp2p/connection, ../libp2p/multistream,
-       ../libp2p/stream, ../libp2p/connection, 
+       ../libp2p/stream/lpstream, ../libp2p/connection, 
        ../libp2p/multiaddress, ../libp2p/transport, 
        ../libp2p/tcptransport, ../libp2p/protocol,
        ../libp2p/crypto/crypto, ../libp2p/peerinfo,
@@ -14,7 +14,7 @@ type
 
 method readExactly*(s: TestSelectStream,
                     pbytes: pointer,
-                    nbytes: int): Future[void] {.async.} =
+                    nbytes: int): Future[void] {.async, gcsafe.} =
   case s.step:
     of 1:
       var buf = newSeq[byte](1)
@@ -38,6 +38,9 @@ method readExactly*(s: TestSelectStream,
               cstring("\0x3na\n"),
               "\0x3na\n".len())
 
+method write*(s: TestSelectStream, msg: string, msglen = -1) 
+  {.async, gcsafe.} = discard
+
 proc newTestSelectStream(): TestSelectStream =
   new result
   result.step = 1
@@ -52,7 +55,7 @@ type
 
 method readExactly*(s: TestLsStream,
                     pbytes: pointer,
-                    nbytes: int): Future[void] {.async.} =
+                    nbytes: int): Future[void] {.async, gcsafe.} =
   case s.step:
     of 1:
       var buf = newSeq[byte](1)
@@ -72,14 +75,17 @@ method readExactly*(s: TestLsStream,
       var buf = "ls\n"
       copyMem(pbytes, addr buf[0], buf.len())
     else:
-      copyMem(pbytes,
-              cstring("\0x3na\n"),
-              "\0x3na\n".len())
+      copyMem(pbytes, cstring("\0x3na\n"), "\0x3na\n".len())
 
-method write*(s: TestLsStream, msg: seq[byte], msglen = -1) {.async.} =
+method write*(s: TestLsStream, msg: seq[byte], msglen = -1) {.async, gcsafe.} =
   if s.step == 4:
     await s.ls(msg)
 
+method write*(s: TestLsStream, msg: string, msglen = -1)
+  {.async, gcsafe.} = discard
+
+method close*(s: TestLsStream) {.async, gcsafe.} = discard
+
 proc newTestLsStream(ls: LsHandler): TestLsStream =
   new result
   result.ls = ls
@@ -95,7 +101,7 @@ type
 
 method readExactly*(s: TestNaStream,
                     pbytes: pointer,
-                    nbytes: int): Future[void] {.async.} =
+                    nbytes: int): Future[void] {.async, gcsafe.} =
   case s.step:
     of 1:
       var buf = newSeq[byte](1)
@@ -119,10 +125,12 @@ method readExactly*(s: TestNaStream,
               cstring("\0x3na\n"),
               "\0x3na\n".len())
 
-method write*(s: TestNaStream, msg: string, msglen = -1) {.async.} =
+method write*(s: TestNaStream, msg: string, msglen = -1) {.async, gcsafe.} =
   if s.step == 4:
     await s.na(msg)
 
+method close*(s: TestNaStream) {.async, gcsafe.} = discard
+
 proc newTestNaStream(na: NaHandler): TestNaStream =
   new result
   result.na = na