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authorMartin Sustrik <sustrik@250bpm.com>2010-09-27 09:53:30 +0200
committerMartin Sustrik <sustrik@250bpm.com>2010-09-27 09:53:30 +0200
commite2f834d2947ad7e7f4e6bfb5be653af8b8a2a576 (patch)
treeb3e61cbc3046a1a51581b8ede2e14c2f194388de
parent30c1cba4e4276f4ddcb5a455fdd62d4d6bd1edd2 (diff)
ZMQ_FD and ZMQ_EVENTS documentation added
-rw-r--r--doc/zmq_getsockopt.txt30
1 files changed, 30 insertions, 0 deletions
diff --git a/doc/zmq_getsockopt.txt b/doc/zmq_getsockopt.txt
index d179e79..a2677c7 100644
--- a/doc/zmq_getsockopt.txt
+++ b/doc/zmq_getsockopt.txt
@@ -199,6 +199,36 @@ Default value:: 0
Applicable socket types:: all
+ZMQ_FD: Retrieve file descriptor associated with the socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The 'ZMQ_FD' option shall retrieve file descriptor associated with the 0MQ
+socket. The descriptor can be used to integrate 0MQ socket into an existing
+event loop. It should never be used for anything else than polling -- such as
+reading or writing. The descriptor signals edge-triggered IN event when
+something has happened within the 0MQ socket. It does not necessarily mean that
+the messages can be read or written. Check ZMQ_EVENTS option to find out whether
+the 0MQ socket is readable or writeable.
+
+[horizontal]
+Option value type:: int on POSIX systems, SOCKET on Windows
+Option value unit:: N/A
+Default value:: N/A
+Applicable socket types:: all
+
+
+ZMQ_EVENTS: Check whether socket is readable and/or writeable
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The 'ZMQ_EVENTS' option shall retrieve event flags for the specified socket.
+If a message can be read from the socket ZMQ_POLLIN flag is set. If message can
+be written to the socket ZMQ_POLLOUT flag is set.
+
+[horizontal]
+Option value type:: uint32_t
+Option value unit:: N/A (flags)
+Default value:: N/A
+Applicable socket types:: all
+
+
RETURN VALUE
------------
The _zmq_getsockopt()_ function shall return zero if successful. Otherwise it