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8648 :: Seems memory leaks in protobuf-nim or nim's GC

• 12398890 (orginal) [2021-11-22T19:20:13+01:00] view original

  import std/[net, socketstreams] import protobuf, streams

  const protoSpec = """ syntax = "proto3";

  message RPC_ARGS {

  uint32 id = 1; uint32 cmd = 2; repeated string argv = 3; bytes data = 4;

  }

  parseProto(protoSpec)

  proc server()=

  let socket = newSocket() socket.bindAddr(Port(1234), "127.0.0.1") socket.listen()

  var client: Socket var address = ""

  socket.acceptAddr(client, address) echo "Client connected from: ", address let reader = newReadSocketStream(client) let writer = newWriteSocketStream(client)

  while true:

  var args = reader.readRPC_ARGS(1024) writer.write(args) writer.flush()

  proc client()=

  let socket = newSocket(AF_INET, SOCK_STREAM, IPPROTO_TCP) socket.connect("127.0.0.1", Port(1234)) let reader = newReadSocketStream(socket) let writer = newWriteSocketStream(socket) var args = initRPC_ARGS()

  args.id = 0x8183 args.cmd = 0x2012 args.argv = @[] args.data = @[] args.argv.add("Hello") args.argv.add("World")

  for i in 0..1024:

  args.data.add(127)

  while true:

  writer.write(args) writer.flush() args = reader.readRPC_ARGS(1024)

  server() #client()

  reproduce steps:

  1. build the code above to server.exe and client.exe
  2. start server.exe
  3. start client.exe
  4. memory are exploded then pc are freezed

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• 12398890 (orginal) [2021-11-22T19:35:00+01:00] view original

  Oh, just resetStream to free buffers

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