Compact the trie/mtrie node tables where possible, to reduce memory usag...

Drop subscription messages when reaching the SNDHWM rather than assertin...

Resolve addresses in the calling thread on connect.

Added zmq_msg_send/recv functions

Renamed zmq_getmsgopt to zmq_msg_get

Signed-off-by: Staffan Gimåker <staffan@spotify.com>

This matches the behaviour of zmq_setsockopt(ZMQ_SUBSCRIBE, ...), which also
silently drops subscription messages if the SNDHWM is reached.
Signed-off-by: Staffan Gimåker <staffan@spotify.com>

This allows us to actually report an error to the caller on resolve
failure, rather than asserting later on in the io thread.
Signed-off-by: Staffan Gimåker <staffan@spotify.com>

* Added zmq_msg_poke for orthogonality
* Added zmq_msg_more for simplicity
* Fixed up man pages and test program

Cleanups to man pages

Fixed error in documentation build

This reverts commit e646ce43.

- anonymous contributor

This reverts commit 7b7d4042.

Wildcard support in TCP and IPC addresses

provide type safe sockets and contexts

more checks for parameters of API functions

fix warn unused variables

Provide scatter/gather array I/O

We have to use an incomplete type in the interface.
The definition of iovec is only in the implementation.
This appears to following existing practice in 0MQ.
It seems a bit flakey that zmq.h is not included in zmq.cpp,
which is normal practice to ensure the implementation matches
the specified interface. YMMV. I follow 0MQ style.

Also move iovec definition from implementation to interface.
Not clear to me at present if an incomplete type should
be used to avoid gratuitously including <sys/uio.h> in
the interface. The interface can't be used with this include.