remove unneeded procs

asyncutils.nim

@@ -1,6 +1,4 @@
 import asyncdispatch, threadpool, osproc
-from net import
-  BufferSize
 from os import
   osLastError,
   newOsError
@@ -23,20 +21,6 @@ from posix import
   sendmsg,
   recvmsg
 
-## asyncReadline as discussed at https://github.com/nim-lang/Nim/issues/11564
-proc asyncReadline*(): Future[string] =
-  let event = newAsyncEvent()
-  let future = newFuture[string]("asyncReadline")
-  proc readlineBackground(event: AsyncEvent): string =
-    result = stdin.readline()
-    event.trigger()
-  let flowVar = spawn readlineBackground(event)
-  proc callback(fd: AsyncFD): bool =
-    future.complete(^flowVar)
-    true                                                                                
-  addEvent(event, callback)
-  return future
-
 proc asyncExecCmd*(command: string): Future[int] =
   let event = newAsyncEvent()
   let future = newFuture[int]("asyncExecCmd")
@@ -98,50 +82,3 @@ proc asyncSendMsg*(fd: AsyncFD, data: string,
 
   addWrite(fd, cb)
   return retFuture
-
-proc asyncRecvMsg*(fd: AsyncFD, size: int = BufferSize,
-                   cmsgSize: int = BufferSize):
-                   Future[tuple[data: string, cmsgs: seq[ControlMessage]]] =
-  var retFuture = newFuture[tuple[data: string,
-                                  cmsgs: seq[ControlMessage]]]("asyncRecvMsg")
-
-  proc cb(sock: AsyncFD): bool =
-    result = true
-
-    var dataBuffer = newString(size)
-    var iovec = IOVec(iov_base: dataBuffer.cstring,
-                      iov_len: dataBuffer.len.csize_t)
-    var cmsgBuffer = newString(cmsgSize)
-    zeroMem(cmsgBuffer.cstring, cmsgBuffer.len)
-    var msg = Tmsghdr(msg_iov: addr iovec,
-                      msg_iovlen: 1,
-                      msg_control: addr cmsgBuffer[0],
-                      msg_controllen: cmsgSize.csize_t)
-
-    let res = recvmsg(sock.SocketHandle, addr msg, 0)
-    if res < 0:
-      let lastError = osLastError()
-      if lastError.int32 != EINTR and
-         lastError.int32 != EWOULDBLOCK and
-         lastError.int32 != EAGAIN:
-        retFuture.fail(newOSError(lastError))
-      else:
-        result = false
-      return
-
-    var cmsgs = newSeq[ControlMessage]()
-    var cmsgHeader = CMSG_FIRSTHDR(addr msg)
-    while cmsgHeader != nil:
-      let dataLen = cmsgHeader.cmsg_len - sizeof(Tcmsghdr).csize_t
-      var cmsg = ControlMessage(level: cmsgHeader.cmsg_level,
-                                msgType: cmsgHeader.cmsg_type,
-                                data: newString(dataLen))
-      copyMem(cmsg.data.cstring, CMSG_DATA(cmsgHeader), cmsgHeader.cmsg_len)
-      cmsgs.add(cmsg)
-      cmsgHeader = CMSG_NXTHDR(addr msg, cmsgHeader)
-
-    dataBuffer.setLen(res)
-    retFuture.complete((dataBuffer, cmsgs))
-
-  addRead(fd, cb)
-  return retFuture