Martin Willi
027cf7ddcf
watcher: Don't complain if select() syscall got interrupted
2014-01-22 15:34:53 +01:00
Martin Willi
5ce3c9b15a
watcher: Rebuild fdset when select() fails
...
This should make sure we refresh the fdset if a user closes an FD it just
removed. Some selects() seem to complain about the bad FD before signaling the
notification pipe.
2013-10-24 15:37:20 +02:00
Tobias Brunner
1f2d9c7688
watcher: Made notify array initialization compatible with older GCC versions
2013-07-25 16:57:42 +02:00
Martin Willi
ea009869e9
watcher: use processors new execute_job() to notify FDs
...
Just queueing is problematic, as all threads might be busy waiting for events
that the queued (but never executed) job delivers.
2013-07-18 16:00:31 +02:00
Martin Willi
55240835b0
watcher: properly support multiple watch callback types for the same FD
2013-07-18 16:00:31 +02:00
Martin Willi
d0c25a3f23
watcher: read multiple notifications if available
...
Use non-blocking I/O on the read end of the notify pipe. This also makes sure
the read does not block should select() signal data while there is none.
2013-07-18 16:00:31 +02:00
Martin Willi
58d0dadddc
watcher: add some debugging statements
2013-07-18 16:00:29 +02:00
Martin Willi
91a2ae644c
watcher: if the processor has no threads, execute the job with watcher thread
...
This is important during shutdown, where we might need to signal some FDs while
all idle threads are gone already.
2013-07-18 16:00:29 +02:00
Martin Willi
a0e3a7363f
watcher: unregister a watcher FD if its thread gets cancelled
2013-07-18 16:00:29 +02:00
Martin Willi
a558ba16f3
watcher: release threads waiting in remove() when watcher thread gets cancelled
...
During daemon shutdown, users might call remove() after processor.set_threads(0)
has been called. This gets problematic, as a watch event might be unable
to signal completion when no threads are available anymore. Work around this
issue by cancelling waiters once processor.cancel() has been called.
2013-07-18 16:00:29 +02:00
Martin Willi
32b2a5e04b
watcher: add a centralized an generic facility to monitor file descriptors
2013-07-18 16:00:27 +02:00
Martin Willi