Volker Lendecke 6dcf2c7eab lib: Add unix_msg ...

This is a messaging layer based on unix domain datagram sockets.

Sending to an idle socket is just one single nonblocking sendmsg call. If the
recv queue is full, we start a background thread to do a blocking call. The
source4 based imessaging uses a polling fallback. In a situation where
thousands of senders beat one single blocked socket, this will generate load on
the system due to the constant polling. This does not happen with a threaded
blocking send call.

The threaded approach has another advantage: We save become_root() calls on the
retries. The access checks are done when the blocking socket is connected, the
threaded blocking send call does not check permissions anymore.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

2014-04-23 22:33:08 +02:00

..

test_drain.c

lib: Add unix_msg

2014-04-23 22:33:08 +02:00

test_source.c

lib: Add unix_msg

2014-04-23 22:33:08 +02:00

tests.c

lib: Add unix_msg

2014-04-23 22:33:08 +02:00

unix_msg.c

lib: Add unix_msg

2014-04-23 22:33:08 +02:00

unix_msg.h

lib: Add unix_msg

2014-04-23 22:33:08 +02:00

wscript_build

lib: Add unix_msg

2014-04-23 22:33:08 +02:00