When integrating the wayland event-loop into another event-loop, we
currently have no chance of checking whether there are pending idle
sources that have to be called. This patch exports the
"dispatch_idle_sources()" call so other event loops can call this before
going to sleep. This is what wl_event_loop_dispatch() currently does so we
simply allow external event-loops to do the same now.
To avoid breaking existing applications, we keep the call to
dispatch_idle_sources() in wl_event_loop_dispatch() for now. However, if
we want we can remove this later and require every application to call
this manually. This needs to be discussed, but the overhead is negligible
so we will probably leave it as it is.
This finally allows to fully integrate the wayland-server API into
existing event-loops without any nasty workarounds.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
There is really no need to increment "n" if we never read the value. The
do-while() loop overwrites the value before it is read the first time.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Closing an fd will remove it from the epoll set only if it hasn't been
dup'ed. In other words, the fd is only removed from epoll when all file
descriptors referring to the open file has been close. We now dup
fd for fd sources, so we need to use EPOLL_CTL_DEL directly now.
Some system C libraries do not have epoll_create1() nor EPOLL_CLOEXEC,
provide a fallback.
Add tests for the wrapper.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Instead of directly freeing an event source upon removal put it in a
queue later handled by the event loop; either after a dispatch or upon
event loop destruction.
This is necessary to avoid already queued up event sources to be freed
during some other dispatch callback, causing segmentation faults when
the event loop later tries to handle an event from the freed source.
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
When the last idle handler queues another idle handler, we fail to
dispatch that last handler. The wl_list_for_each_safe loop looks up
the next pointer before running the handler, and at that point it points
to the head of the list and the loop terminates.
Instead, just loop until the list is empty.
