status-im
/
nimbus-eth2
mirror of https://github.com/status-im/nimbus-eth2.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Add snappy and protobuf-serialization; Use the latest FastStreams API

This commit is contained in:
Zahary Karadjov 2020-04-09 21:36:00 +03:00 committed by zah
parent 778c2011e3
commit f34fd46e3a
12 changed files with 115 additions and 97 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
.gitmodules vendored
View File

@ -138,3 +138,13 @@
url = https://github.com/status-im/nim-testutils.git
ignore = dirty
branch = master
[submodule "vendor/nim-snappy"]
path = vendor/nim-snappy
url = https://github.com/status-im/nim-snappy.git
ignore = dirty
branch = master
[submodule "vendor/nim-protobuf-serialization"]
path = vendor/nim-protobuf-serialization
url = https://github.com/status-im/nim-protobuf-serialization.git
ignore = dirty
branch = master

12
beacon_chain/eth2_network.nim
View File

@ -353,7 +353,7 @@ proc readResponse(
return await conn.readChunk(MsgType, true, deadline)
proc encodeErrorMsg(responseCode: ResponseCode, errMsg: string): Bytes =
var s = init OutputStream
var s = memoryOutput()
s.append byte(responseCode)
s.appendVarint errMsg.len
s.appendValue SSZ, errMsg
@ -395,7 +395,7 @@ proc sendNotificationMsg(peer: Peer, protocolId: string, requestBytes: Bytes) {.
defer:
await safeClose(stream)
var s = init OutputStream
var s = memoryOutput()
s.appendVarint requestBytes.len.uint64
s.append requestBytes
let bytes = s.getOutput
@ -404,7 +404,7 @@ proc sendNotificationMsg(peer: Peer, protocolId: string, requestBytes: Bytes) {.
# TODO There is too much duplication in the responder functions, but
# I hope to reduce this when I increse the reliance on output streams.
proc sendResponseChunkBytes(responder: UntypedResponder, payload: Bytes) {.async.} =
var s = init OutputStream
var s = memoryOutput()
s.append byte(Success)
s.appendVarint payload.len.uint64
s.append payload
@ -412,14 +412,14 @@ proc sendResponseChunkBytes(responder: UntypedResponder, payload: Bytes) {.async
await responder.stream.write(bytes)
proc sendResponseChunkObj(responder: UntypedResponder, val: auto) {.async.} =
var s = init OutputStream
var s = memoryOutput()
s.append byte(Success)
s.appendValue SSZ, sizePrefixed(val)
let bytes = s.getOutput
await responder.stream.write(bytes)
proc sendResponseChunks[T](responder: UntypedResponder, chunks: seq[T]) {.async.} =
var s = init OutputStream
var s = memoryOutput()
for chunk in chunks:
s.append byte(Success)
s.appendValue SSZ, sizePrefixed(chunk)
@ -446,7 +446,7 @@ proc makeEth2Request(peer: Peer, protocolId: string, requestBytes: Bytes,
await safeClose(stream)
# Send the request
var s = init OutputStream
var s = memoryOutput()
s.appendVarint requestBytes.len.uint64
s.append requestBytes
let bytes = s.getOutput

152
beacon_chain/ssz.nim
View File

@ -32,19 +32,22 @@ const
type
SszReader* = object
stream: ByteStreamVar
stream: InputStream
maxObjectSize: int
SszWriter* = object
stream: OutputStreamVar
stream: OutputStream
BasicType = char|bool|SomeUnsignedInt|StUint|ValidatorIndex
SszChunksMerkelizer = ref object of RootObj
SszChunksMerkelizer = ref object
combinedChunks: array[maxChunkTreeDepth, Eth2Digest]
totalChunks: uint64
limit: uint64
SszHashingStream = ref object of OutputStream
merkleizer: SszChunksMerkelizer
TypeWithMaxLen*[T; maxLen: static int64] = distinct T
SizePrefixed*[T] = distinct T
@ -68,11 +71,11 @@ template sizePrefixed*[TT](x: TT): untyped =
SizePrefixed[T](x)
proc init*(T: type SszReader,
stream: ByteStreamVar,
stream: InputStream,
maxObjectSize = defaultMaxObjectSize): T =
T(stream: stream, maxObjectSize: maxObjectSize)
proc mount*(F: type SSZ, stream: ByteStreamVar, T: type): T =
proc mount*(F: type SSZ, stream: InputStream, T: type): T =
mixin readValue
var reader = init(SszReader, stream)
reader.readValue(T)
@ -108,7 +111,7 @@ template toSszType*(x: auto): auto =
elif useListType and x is List: seq[x.T](x)
else: x
func writeFixedSized(c: var WriteCursor, x: auto) =
proc writeFixedSized(c: var WriteCursor, x: auto) =
mixin toSszType
when x is byte:
@ -136,14 +139,14 @@ func writeFixedSized(c: var WriteCursor, x: auto) =
else:
unsupported x.type
template writeFixedSized(s: OutputStreamVar, x: auto) =
template writeFixedSized(s: OutputStream, x: auto) =
writeFixedSized(s.cursor, x)
template supports*(_: type SSZ, T: type): bool =
mixin toSszType
anonConst compiles(fixedPortionSize toSszType(default(T)))
func init*(T: type SszWriter, stream: OutputStreamVar): T =
func init*(T: type SszWriter, stream: OutputStream): T =
result.stream = stream
template enumerateSubFields(holder, fieldVar, body: untyped) =
@ -152,9 +155,9 @@ template enumerateSubFields(holder, fieldVar, body: untyped) =
else:
enumInstanceSerializedFields(holder, _, fieldVar): body
func writeVarSizeType(w: var SszWriter, value: auto) {.gcsafe.}
proc writeVarSizeType(w: var SszWriter, value: auto) {.gcsafe.}
func beginRecord*(w: var SszWriter, TT: type): auto =
proc beginRecord*(w: var SszWriter, TT: type): auto =
type T = TT
when isFixedSize(T):
FixedSizedWriterCtx()
@ -190,7 +193,7 @@ template endRecord*(w: var SszWriter, ctx: var auto) =
when ctx is VarSizedWriterCtx:
finalize ctx.fixedParts
func writeVarSizeType(w: var SszWriter, value: auto) =
proc writeVarSizeType(w: var SszWriter, value: auto) =
trs "STARTING VAR SIZE TYPE"
mixin toSszType
type T = type toSszType(value)
@ -227,7 +230,7 @@ func writeVarSizeType(w: var SszWriter, value: auto) =
writeField w, ctx, astToStr(field), field
endRecord w, ctx
func writeValue*(w: var SszWriter, x: auto) {.gcsafe.} =
proc writeValue*(w: var SszWriter, x: auto) {.gcsafe.} =
mixin toSszType
type T = type toSszType(x)
@ -238,7 +241,7 @@ func writeValue*(w: var SszWriter, x: auto) {.gcsafe.} =
else:
unsupported type(x)
func writeValue*[T](w: var SszWriter, x: SizePrefixed[T]) =
proc writeValue*[T](w: var SszWriter, x: SizePrefixed[T]) =
var cursor = w.stream.delayVarSizeWrite(10)
let initPos = w.stream.pos
w.writeValue T(x)
@ -260,21 +263,21 @@ template fromSszBytes*[T; N](_: type TypeWithMaxLen[T, N],
proc readValue*[T](r: var SszReader, val: var T) =
when isFixedSize(T):
const minimalSize = fixedPortionSize(T)
if r.stream[].ensureBytes(minimalSize):
val = readSszValue(r.stream.readBytes(minimalSize), T)
if r.stream.readable(minimalSize):
val = readSszValue(r.stream.read(minimalSize), T)
else:
raise newException(MalformedSszError, "SSZ input of insufficient size")
else:
# TODO Read the fixed portion first and precisely measure the size of
# the dynamic portion to consume the right number of bytes.
val = readSszValue(r.stream.readBytes(r.stream.endPos), T)
val = readSszValue(r.stream.read(r.stream.endPos), T)
proc readValue*[T](r: var SszReader, val: var SizePrefixed[T]) =
let length = r.stream.readVarint(uint64)
if length > r.maxObjectSize:
raise newException(SszMaxSizeExceeded,
"Maximum SSZ object size exceeded: " & $length)
val = readSszValue(r.stream.readBytes(length), T)
val = readSszValue(r.stream.read(length), T)
const
zeroChunk = default array[32, byte]
@ -321,39 +324,39 @@ func getZeroHashWithoutSideEffect(idx: int): Eth2Digest =
{.noSideEffect.}:
zeroHashes[idx]
func addChunk(merkelizer: SszChunksMerkelizer, data: openarray[byte]) =
func addChunk(merkleizer: SszChunksMerkelizer, data: openarray[byte]) =
doAssert data.len > 0 and data.len <= bytesPerChunk
if not getBitLE(merkelizer.totalChunks, 0):
let chunkStartAddr = addr merkelizer.combinedChunks[0].data[0]
if not getBitLE(merkleizer.totalChunks, 0):
let chunkStartAddr = addr merkleizer.combinedChunks[0].data[0]
copyMem(chunkStartAddr, unsafeAddr data[0], data.len)
zeroMem(chunkStartAddr.offset(data.len), bytesPerChunk - data.len)
trs "WROTE BASE CHUNK ", merkelizer.combinedChunks[0]
trs "WROTE BASE CHUNK ", merkleizer.combinedChunks[0]
else:
var hash = mergeBranches(merkelizer.combinedChunks[0], data)
var hash = mergeBranches(merkleizer.combinedChunks[0], data)
for i in 1 .. high(merkelizer.combinedChunks):
for i in 1 .. high(merkleizer.combinedChunks):
trs "ITERATING"
if getBitLE(merkelizer.totalChunks, i):
if getBitLE(merkleizer.totalChunks, i):
trs "CALLING MERGE BRANCHES"
hash = mergeBranches(merkelizer.combinedChunks[i], hash)
hash = mergeBranches(merkleizer.combinedChunks[i], hash)
else:
trs "WRITING FRESH CHUNK AT ", i, " = ", hash
merkelizer.combinedChunks[i] = hash
merkleizer.combinedChunks[i] = hash
break
inc merkelizer.totalChunks
inc merkleizer.totalChunks
func getFinalHash(merkelizer: SszChunksMerkelizer): Eth2Digest =
let limit = merkelizer.limit
func getFinalHash(merkleizer: SszChunksMerkelizer): Eth2Digest =
let limit = merkleizer.limit
if merkelizer.totalChunks == 0:
if merkleizer.totalChunks == 0:
let limitHeight = if limit != 0: bitWidth(limit - 1) else: 0
return getZeroHashWithoutSideEffect(limitHeight)
let
bottomHashIdx = firstOne(merkelizer.totalChunks) - 1
submittedChunksHeight = bitWidth(merkelizer.totalChunks - 1)
bottomHashIdx = firstOne(merkleizer.totalChunks) - 1
submittedChunksHeight = bitWidth(merkleizer.totalChunks - 1)
topHashIdx = if limit <= 1: submittedChunksHeight
else: max(submittedChunksHeight, bitWidth(limit - 1))
@ -364,12 +367,12 @@ func getFinalHash(merkelizer: SszChunksMerkelizer): Eth2Digest =
if bottomHashIdx != submittedChunksHeight:
# Our tree is not finished. We must complete the work in progress
# branches and then extend the tree to the right height.
result = mergeBranches(merkelizer.combinedChunks[bottomHashIdx],
result = mergeBranches(merkleizer.combinedChunks[bottomHashIdx],
getZeroHashWithoutSideEffect(bottomHashIdx))
for i in bottomHashIdx + 1 ..< topHashIdx:
if getBitLE(merkelizer.totalChunks, i):
result = mergeBranches(merkelizer.combinedChunks[i], result)
if getBitLE(merkleizer.totalChunks, i):
result = mergeBranches(merkleizer.combinedChunks[i], result)
trs "COMBINED"
else:
result = mergeBranches(result, getZeroHashWithoutSideEffect(i))
@ -377,52 +380,49 @@ func getFinalHash(merkelizer: SszChunksMerkelizer): Eth2Digest =
elif bottomHashIdx == topHashIdx:
# We have a perfect tree (chunks == 2**n) at just the right height!
result = merkelizer.combinedChunks[bottomHashIdx]
result = merkleizer.combinedChunks[bottomHashIdx]
else:
# We have a perfect tree of user chunks, but we have more work to
# do - we must extend it to reach the desired height
result = mergeBranches(merkelizer.combinedChunks[bottomHashIdx],
result = mergeBranches(merkleizer.combinedChunks[bottomHashIdx],
getZeroHashWithoutSideEffect(bottomHashIdx))
for i in bottomHashIdx + 1 ..< topHashIdx:
result = mergeBranches(result, getZeroHashWithoutSideEffect(i))
let HashingStreamVTable = OutputStreamVTable(
writePage: proc (s: OutputStreamVar, data: openarray[byte])
let SszHashingStreamVTable = OutputStreamVTable(
writePageSync: proc (s: OutputStream, data: openarray[byte])
{.nimcall, gcsafe, raises: [Defect, IOError].} =
trs "ADDING STREAM CHUNK ", data
SszChunksMerkelizer(s.outputDevice).addChunk(data)
SszHashingStream(s).merkleizer.addChunk(data)
,
flush: proc (s: OutputStreamVar) {.nimcall, gcsafe.} =
flushSync: proc (s: OutputStream) {.nimcall, gcsafe.} =
discard
)
func getVtableAddresWithoutSideEffect: ptr OutputStreamVTable =
# TODO this is a work-around for the somewhat broken side
# effects analysis of Nim - reading from global let variables
# is considered a side-effect.
{.noSideEffect.}:
unsafeAddr HashingStreamVTable
func newSszHashingStream(merkelizer: SszChunksMerkelizer): ref OutputStream =
new result
result.initWithSinglePage(pageSize = bytesPerChunk,
maxWriteSize = bytesPerChunk,
minWriteSize = bytesPerChunk)
result.outputDevice = merkelizer
result.vtable = getVtableAddresWithoutSideEffect()
func newSszHashingStream(merkleizer: SszChunksMerkelizer): OutputStream =
result = SszHashingStream(vtable: vtableAddr SszHashingStreamVTable,
pageSize: bytesPerChunk,
maxWriteSize: bytesPerChunk,
minWriteSize: bytesPerChunk,
merkleizer: merkleizer)
result.initWithSinglePage()
func mixInLength(root: Eth2Digest, length: int): Eth2Digest =
var dataLen: array[32, byte]
dataLen[0..<8] = uint64(length).toBytesLE()
hash(root.data, dataLen)
func merkelizeSerializedChunks(merkelizer: SszChunksMerkelizer,
func merkelizeSerializedChunks(merkleizer: SszChunksMerkelizer,
obj: auto): Eth2Digest =
var hashingStream = newSszHashingStream merkelizer
var hashingStream = newSszHashingStream merkleizer
{.noSideEffect.}:
# We assume there are no side-effects here, because the
# SszHashingStream is keeping all of its output in memory.
hashingStream.writeFixedSized obj
hashingStream.flush
merkelizer.getFinalHash
merkleizer.getFinalHash
func merkelizeSerializedChunks(obj: auto): Eth2Digest =
merkelizeSerializedChunks(SszChunksMerkelizer(), obj)
@ -430,12 +430,12 @@ func merkelizeSerializedChunks(obj: auto): Eth2Digest =
func hash_tree_root*(x: auto): Eth2Digest {.gcsafe.}
template merkelizeFields(body: untyped): Eth2Digest {.dirty.} =
var merkelizer {.inject.} = SszChunksMerkelizer()
var merkleizer {.inject.} = SszChunksMerkelizer()
template addField(field) =
let hash = hash_tree_root(field)
trs "MERKLEIZING FIELD ", astToStr(field), " = ", hash
addChunk(merkelizer, hash.data)
addChunk(merkleizer, hash.data)
trs "CHUNK ADDED"
template addField2(field) {.used.}=
@ -448,10 +448,10 @@ template merkelizeFields(body: untyped): Eth2Digest {.dirty.} =
body
merkelizer.getFinalHash
merkleizer.getFinalHash
func bitlistHashTreeRoot(merkelizer: SszChunksMerkelizer, x: BitSeq): Eth2Digest =
trs "CHUNKIFYING BIT SEQ WITH LIMIT ", merkelizer.limit
func bitlistHashTreeRoot(merkleizer: SszChunksMerkelizer, x: BitSeq): Eth2Digest =
trs "CHUNKIFYING BIT SEQ WITH LIMIT ", merkleizer.limit
var
totalBytes = ByteList(x).len
@ -461,8 +461,8 @@ func bitlistHashTreeRoot(merkelizer: SszChunksMerkelizer, x: BitSeq): Eth2Digest
if totalBytes == 1:
# This is an empty bit list.
# It should be hashed as a tree containing all zeros:
let treeHeight = if merkelizer.limit == 0: 0
else: log2trunc(merkelizer.limit)
let treeHeight = if merkleizer.limit == 0: 0
else: log2trunc(merkleizer.limit)
return mergeBranches(getZeroHashWithoutSideEffect(treeHeight),
getZeroHashWithoutSideEffect(0)) # this is the mixed length
@ -485,7 +485,7 @@ func bitlistHashTreeRoot(merkelizer: SszChunksMerkelizer, x: BitSeq): Eth2Digest
chunkStartPos = i * bytesPerChunk
chunkEndPos = chunkStartPos + bytesPerChunk - 1
merkelizer.addChunk ByteList(x).toOpenArray(chunkEndPos, chunkEndPos)
merkleizer.addChunk ByteList(x).toOpenArray(chunkEndPos, chunkEndPos)
var
lastChunk: array[bytesPerChunk, byte]
@ -496,8 +496,8 @@ func bitlistHashTreeRoot(merkelizer: SszChunksMerkelizer, x: BitSeq): Eth2Digest
lastChunk[bytesInLastChunk - 1] = lastCorrectedByte
merkelizer.addChunk lastChunk.toOpenArray(0, bytesInLastChunk - 1)
let contentsHash = merkelizer.getFinalHash
merkleizer.addChunk lastChunk.toOpenArray(0, bytesInLastChunk - 1)
let contentsHash = merkleizer.getFinalHash
mixInLength contentsHash, x.len
func hashTreeRootImpl[T](x: T): Eth2Digest =
@ -555,19 +555,19 @@ func hash_tree_root*(x: auto): Eth2Digest =
const maxLen = x.maxLen
type T = type valueOf(x)
const limit = maxChunksCount(T, maxLen)
var merkelizer = SszChunksMerkelizer(limit: uint64(limit))
var merkleizer = SszChunksMerkelizer(limit: uint64(limit))
when T is BitList:
result = merkelizer.bitlistHashTreeRoot(BitSeq valueOf(x))
result = merkleizer.bitlistHashTreeRoot(BitSeq valueOf(x))
elif T is seq:
type E = ElemType(T)
let contentsHash = when E is BasicType:
merkelizeSerializedChunks(merkelizer, valueOf(x))
merkelizeSerializedChunks(merkleizer, valueOf(x))
else:
for elem in valueOf(x):
let elemHash = hash_tree_root(elem)
merkelizer.addChunk(elemHash.data)
merkelizer.getFinalHash()
merkleizer.addChunk(elemHash.data)
merkleizer.getFinalHash()
result = mixInLength(contentsHash, valueOf(x).len)
else:
unsupported T # This should never happen
@ -583,7 +583,7 @@ iterator hash_tree_roots_prefix*[T](lst: openarray[T], limit: auto):
# Eth1 deposit case is the only notable example -- the usual uses of a
# list involve, at some point, tree-hashing it -- finalized hashes are
# the only abstraction that escapes from this module this way.
var merkelizer = SszChunksMerkelizer(limit: uint64(limit))
var merkleizer = SszChunksMerkelizer(limit: uint64(limit))
for i, elem in lst:
merkelizer.addChunk(hash_tree_root(elem).data)
yield mixInLength(merkelizer.getFinalHash(), i + 1)
merkleizer.addChunk(hash_tree_root(elem).data)
yield mixInLength(merkleizer.getFinalHash(), i + 1)

16
beacon_chain/ssz/dynamic_navigator.nim
View File

@ -34,14 +34,14 @@ type
discard
jsonPrinter: proc (m: MemRange,
outStream: OutputStreamVar,
pretty: bool) {.gcsafe, noSideEffect.}
outStream: OutputStream,
pretty: bool) {.gcsafe.}
DynamicSszNavigator* = object
m: MemRange
typ: TypeInfo
func jsonPrinterImpl[T](m: MemRange, outStream: OutputStreamVar, pretty: bool) =
proc jsonPrinterImpl[T](m: MemRange, outStream: OutputStream, pretty: bool) =
var typedNavigator = sszMount(m, T)
var jsonWriter = init(JsonWriter, outStream, pretty)
# TODO: it should be possible to serialize the navigator object
@ -141,11 +141,17 @@ func init*(T: type DynamicSszNavigator,
T(m: MemRange(startAddr: unsafeAddr bytes[0], length: bytes.len),
typ: typeInfo(Navigated))
func writeJson*(n: DynamicSszNavigator, outStream: OutputStreamVar, pretty = true) =
proc writeJson*(n: DynamicSszNavigator, outStream: OutputStream, pretty = true) =
n.typ.jsonPrinter(n.m, outStream, pretty)
func toJson*(n: DynamicSszNavigator, pretty = true): string =
var outStream = init OutputStream
var outStream = memoryOutput()
{.noSideEffect.}:
# We are assuming that there are no side-effects here
# because we are using a `memoryOutput`. The computed
# side-effects are coming from the fact that the dynamic
# dispatch mechanisms used in faststreams may be reading
# from a file or a network device.
writeJson(n, outStream, pretty)
outStream.getOutput(string)

2
vendor/nim-chronicles vendored

@ -1 +1 @@
Subproject commit fb8af46311965fd076412e6e071dda571d282024
Subproject commit 2f0896a29ed9a7e42cf377020ea2b65affbfd6df

2
vendor/nim-eth vendored

@ -1 +1 @@
Subproject commit 99c68d40f71a3bbb6b3e4024390cc7fde7c31ecb
Subproject commit 8f3bf360540f7aaeba21b0a4296ae70af6734c21

2
vendor/nim-faststreams vendored

@ -1 +1 @@
Subproject commit 8a3cf6778d483a9d701534dfc2f14f3a4dfc4ab8
Subproject commit 2c87f53c03b75da401aae625896721a88c626999

2
vendor/nim-json-serialization vendored

@ -1 +1 @@
Subproject commit f52683b2ee92501915ef062528c9e3ecd253d412
Subproject commit 96a337d334fe7fcfa847ba5e0a38cf5f141a0eea

1
vendor/nim-protobuf-serialization vendored Submodule

@ -0,0 +1 @@
Subproject commit 08c6db775f3daee35fee098c72c0e36b8ec57833

2
vendor/nim-serialization vendored

@ -1 +1 @@
Subproject commit 68e9ef790138b6644a87229afdd2e217bd801ad5
Subproject commit 67bb6a77bb9dce9cd3b79fb1fcc0bdb333331e22

1
vendor/nim-snappy vendored Submodule

@ -0,0 +1 @@
Subproject commit 80cff583e33a026ac944ca3b6ea9ed95a3fc7e0e

2
vendor/nim-stew vendored

@ -1 +1 @@
Subproject commit 805ef4f1b2267d0f6323d92a8eae943834a04cb9
Subproject commit 8528ce28b4c53351f70f62bbe56e92336efe42e4