Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

send/recv now complies with POSIX by using raw buffers instead
of message objects and by returning number of bytes sent/recvd
instead of 0/-1.

The return value is changed accordingly for sendmsg and recvmsg.

Note that related man pages will be fixed in a separate patch.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Devices are basically applications on top of 0MQ stack. They
should reside in separate libraties.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

The old timeout in microsecond haven't been compliant with
POSIX and was impractical at the same time.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

 - ctx constructor was calling mailbox_t constructor implicitly
 - moved WSAStartup and WSACleanup to be outside constructor/destructor
Signed-off-by: Pieter Hintjens <ph@imatix.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Mikko Koppanen <mkoppanen@php.net>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

On systems using GCC 4.0 or newer which support symbol visibility in shared
libraries, use -fvisibility=hidden and only export explict API functions
defined in zmq.cpp. We do not enable -fvisibility on MinGW since this uses a
separate mechanism (__declspec).
Signed-off-by: Martin Lucina <mato@kotelna.sk>

- RAND_bytes function resides in crypto library
- pollfd on AIX used 'reqevents' instead of events and 'retnevents'
  instead of 'revents'
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

ptimeout not properly recalculated after first pass.
Signed-off-by: Chia-liang Kao <clkao@clkao.org>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Steven McCoy <steven.mccoy@miru.hk>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

zmq_msg_close now empties the message on zmq_msg_close, thus not
leaving random data in the structure, that may be mistaken for
a valid message.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Macro ZMQ_VERSION represents the current version of 0MQ
Macro ZMQ_MAKE_VERSION(major,minor,patch) allows to create
a representation of the specified version.
The versions can be compared using simple <, >, ==, etc.
operators.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Fix a case where zmq_poll() (poll-based version) could go off into a busy-loop
if no revents are returned and the timeout passed in is zero.

 * Assertion to check that pgm_getaddrinfo is actually returning something.
 * Missing pgm_connect call.
 * Typo on TOS causing immediate abort.
 * Placeholder calls for timeouts whilst continuing spin loop functionality.
 * OpenPGM v5 now supports reference counting so remove init checks.
 * Duplicate UDP unicast port setting, requires one unicast and one multicast.
 * Incorrectly set socket rcvbuf size with sndbuf.
 * Replace std::lexicographical_compare of TSI's with long word integer comparisons.
 * pgm_socket_t::receive returns -1 on no data.

Ensure that 0MQ does not attempt to call select() on more than FD_SETSIZE
file descriptors.

Trying to optimize out the case where items_[i]. events is 0 would
result in a bogus pollfds[i]. Similarly in the select()-based impl,
while not strictly necessary it's better to get ZMQ_FD even if
events is 0 since that detects ETERM and friends.

Rewrite the select()-based zmq_poll() implementation to use
ZMQ_FD and ZMQ_EVENTS.

Also fix some corner cases: We should not pollute revents with
unrequested events, and we don't need to poll on ZMQ_FD at all
if a pollitem with no events set was passed in.