Nathaniel McCallum
b937d76108
Currently, sd-event supports the ability to have a thread-local default
event loop. However, this is less useful than it can be since all functions
which require an sd_event* as input require the caller to pass it. This
patch adds a new macro which allows the developer to pass a constant
SD_EVENT_DEFAULT instead. This reduces work for the caller.
For example:
r = sd_event_default(&e);
r = sd_event_add_io(e, ...);
sd_event_unref(e);
Becomes:
r = sd_event_add_io(SD_EVENT_DEFAULT, ...);
If no thread-local default event loop exists, the function calls will
return -ENOPKG. No event loop will ever be implicitly created.
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