Github user jeking3 commented on a diff in the pull request:

    https://github.com/apache/thrift/pull/422#discussion_r28375162
  
    --- Diff: lib/cpp/src/thrift/server/TNonblockingServer.cpp ---
    @@ -1393,9 +1397,42 @@ bool 
TNonblockingIOThread::notify(TNonblockingServer::TConnection* conn) {
         return false;
       }
     
    -  const int kSize = sizeof(conn);
    -  if (send(fd, const_cast_sockopt(&conn), kSize, 0) != kSize) {
    -    return false;
    +  fd_set wfds, efds;
    +  int ret = -1;
    +  int kSize = sizeof(conn);
    +  const char * pos = (const char *)const_cast_sockopt(&conn);
    +
    +  while (kSize > 0) {
    +    FD_ZERO(&wfds);
    +    FD_ZERO(&efds);
    +    FD_SET(fd, &wfds);
    +    FD_SET(fd, &efds);
    +    ret = select(fd + 1, NULL, &wfds, &efds, NULL);
    --- End diff --
    
    Seems like a dangerous assumption that the file descriptor you are 
interested is +1 from the obtained file descriptor.  Did you mean to use 
`getNotificationRecvFD()` instead of `fd + 1` here?


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