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Resolve LIBZMQ-459

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Ref: https://zeromq.jira.com/browse/LIBZMQ-459
This commit is contained in:
Martin Hurton
2012-11-02 11:11:14 +01:00
parent 1348924251
commit 41dc2e6049
1 changed files with 8 additions and 1 deletions
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9
src/stream_engine.cpp
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@@ -263,8 +263,15 @@ void zmq::stream_engine_t::out_event ()
// If write buffer is empty, try to read new data from the encoder. // If write buffer is empty, try to read new data from the encoder.
if (!outsize) { if (!outsize) {
// Even when we stop polling as soon as there is no
// data to send, the poller may invoke out_event one
// more time due to 'speculative write' optimisation.
if (unlikely (encoder == NULL)) {
zmq_assert (handshaking);
return;
}
outpos = NULL; outpos = NULL;
zmq_assert (encoder);
encoder->get_data (&outpos, &outsize); encoder->get_data (&outpos, &outsize);
// If there is no data to send, stop polling for output. // If there is no data to send, stop polling for output.