This patch addresses serveral issues:
1. It gathers message related functionality scattered over whole
codebase into a single class.
2. It makes zmq_msg_t an opaque datatype. Internals of the class
don't pollute zmq.h header file.
3. zmq_msg_t size decreases from 48 to 32 bytes. That saves ~33%
of memory in scenarios with large amount of small messages.
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>
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>
- 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>
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>
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>
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>
* 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.
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.
