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Use state functions for message flow

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The patch makes the code somewhat simpler and prepares it for
more complex initialization handshakes.
This commit is contained in:
Martin Hurton
2013-04-12 11:59:49 +02:00
parent 7942db7606
commit 9d79ac2830
2 changed files with 65 additions and 65 deletions
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24
src/stream_engine.hpp
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@@ -91,9 +91,13 @@ namespace zmq
// peer -1 is returned.
int read (void *data_, size_t size_);
int read_msg (msg_t *msg_);
int read_identity (msg_t *msg_);
int write_identity (msg_t *msg_);
int write_msg (msg_t *msg_);
int pull_msg_from_session (msg_t *msg_);
int push_msg_to_session (msg_t *msg);
int write_subscription_msg (msg_t *msg_);
// Underlying socket.
fd_t s;
@@ -137,24 +141,16 @@ namespace zmq
bool plugged;
bool terminating;
int (stream_engine_t::*read_msg) (msg_t *msg_);
int (stream_engine_t::*write_msg) (msg_t *msg_);
bool io_error;
// True iff the session could not accept more
// messages due to flow control.
bool congested;
// True iff the engine has received identity message.
bool identity_received;
// True iff the engine has sent identity message.
bool identity_sent;
// True iff the engine has received all ZMTP control messages.
bool rx_initialized;
// True iff the engine has sent all ZMTP control messages.
bool tx_initialized;
// Indicates whether the engine is to inject a phony
// subscription message into the incomming stream.
// Needed to support old peers.