lib: Move io_loop_context_[de]activate() to be public

lib: Added io_wait_timer This allows easier tracking of how much time the io_wait_timer has been spending on (multiple) ioloops.

lib: Fix ioloop wait times when io_loop_time_refresh() is used

io: Add source filename This will make debugging alot easier when you can see what the filename is as well.

global: unsigned int:1 -> bool:1 perl -i -pe 's/unsigned int ([^,:;]+):1;/bool $1:1;/' **/*.[ch]

lib: Added io_loop_get_wait_usecs()

lib: Try fixing ec6e672a6e32 (ioloop timeout fixing) Previous code was broken at least when moving a timeout between ioloops. This is now tested and works.

Reverted ec6e672a6e32 for now due to some bugs.

ioloop: Delay actual start of a new normal timeout until the next io_loop_run() cycle. This makes sure that timeouts will not expire before they get a chance to run.

lib: Don't call ioloop context deactivate() if activate() hasn't been called yet. This could have happened immediately after the callback was registered.

lib: Added support for setting timeouts at absolute time, rather than relative to current time.

Added io_add_istream() and related functionality for combining the ioloop/istream. The idea here is that it's possible to implement asynchronous istreams when there isn't a file descriptor that can be used to reliably receive updates.

ioloop: Added io_set_pending()

io_loop_run() now assert-crashes if it's attempted to be used recursively for the same ioloop.

Array API changed: ARRAY_DEFINE(name, type) -> ARRAY(type) name Easy way to update your existing code: perl -i -pe 's:ARRAY_DEFINE\(([^,]+), *([^)]+)\);:ARRAY($2) $1;:' **/*.[ch]

ioloop: I/O and timeout leak messages now include the io_add()/timeout_add() source line number. This helps figuring out the leak especially when using ASLR. Also in 64bit systems there's no increased memory usage, because the line number replaces only padding.

Renamed lib/*-internal.h files to lib/*-private.h for consistency.