diff options
Diffstat (limited to 'doc/zmq_poll.txt')
| -rw-r--r-- | doc/zmq_poll.txt | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/doc/zmq_poll.txt b/doc/zmq_poll.txt index fe2a209..26d7dac 100644 --- a/doc/zmq_poll.txt +++ b/doc/zmq_poll.txt @@ -40,17 +40,17 @@ NOTE: All 0MQ sockets passed to the _zmq_poll()_ function must share the same 0MQ 'context' and must belong to the thread calling _zmq_poll()_. For each *zmq_pollitem_t* item, _zmq_poll()_ shall first clear the 'revents' -member, and then indicate any requested events that have occured by setting the +member, and then indicate any requested events that have occurred by setting the bit corresponding to the event condition in the 'revents' member. -If none of the requested events have occured on any *zmq_pollitem_t* item, -_zmq_poll()_ shall wait up to 'timeout' microseconds for an event to occur on +If none of the requested events have occurred on any *zmq_pollitem_t* item, +_zmq_poll()_ shall wait 'timeout' microseconds for an event to occur on any of the requested items. If the value of 'timeout' is `0`, _zmq_poll()_ shall return immediately. If the value of 'timeout' is `-1`, _zmq_poll()_ shall -block indefinitely until a requested event has occured on at least one +block indefinitely until a requested event has occurred on at least one *zmq_pollitem_t*. -The 'events' and 'revents' members of *zmq_pollitem_t* are bitmasks constructed +The 'events' and 'revents' members of *zmq_pollitem_t* are bit masks constructed by OR'ing a combination of the following event flags: *ZMQ_POLLIN*:: @@ -84,20 +84,17 @@ of *zmq_pollitem_t* structures with events signaled in 'revents' or `0` if no events have been signaled. Upon failure, _zmq_poll()_ shall return `-1` and set 'errno' to one of the values defined below. -IMPORTANT: The _zmq_poll()_ function may return *before* the 'timeout' period -has expired even if no events have been signaled. - ERRORS ------ -*EFAULT*:: -At least one of the members of the 'items' array refers to a 'socket' belonging -to a different application thread. *ETERM*:: At least one of the members of the 'items' array refers to a 'socket' whose associated 0MQ 'context' was terminated. *EFAULT*:: The provided 'items' was not valid (NULL). +*EINTR*:: +The operation was interrupted by delivery of a signal before any events were +available. EXAMPLE @@ -131,5 +128,5 @@ Your operating system documentation for the _poll()_ system call. AUTHORS ------- -The 0MQ documentation was written by Martin Sustrik <sustrik@250bpm.com> and +This 0MQ manual page was written by Martin Sustrik <sustrik@250bpm.com> and Martin Lucina <mato@kotelna.sk>. |