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48 Commits

Author SHA1 Message Date
Max Kellermann
6c67408944 event/Loop: add flag alive 
This replaces the old `dead` flag which was unreliable; it was `false`
if the EventThread was not yet started, which could cause deadlocks in
BlockingCall().
 2019-02-05 22:38:45 +01:00
Max Kellermann
ce49d99c2f check.h: remove obsolete header 
Since we switched from autotools to Meson in commit
94592c1406, we don't need to include
`config.h` early to properly enable large file support.  Meson passes
the required macros on the compiler command line instead of defining
them in `config.h`.

This means we can include `config.h` at any time, whenever we want to
check its macros, and there are no ordering constraints.
 2018-11-19 16:33:49 +01:00
Max Kellermann
f5c9071494 *: copyright year 2018 2018-10-31 17:54:59 +01:00
Max Kellermann
ec54754e22 Compiler.h: move to util/ 2018-08-20 16:19:17 +02:00
Max Kellermann
0c1a001622 system/Event{FD,Pipe}: throw exception on error 2018-08-06 11:49:38 +02:00
Max Kellermann
ce68701c0c event/Loop: add flag "dead" 2018-01-29 22:52:13 +01:00
Max Kellermann
199c8aaa25 event/Loop: move code to HandleTimers() 2018-01-29 22:40:12 +01:00
Max Kellermann
3890bc5a96 event/Loop: add "noexcept" 2018-01-29 22:05:58 +01:00
Max Kellermann
f8bb66b4e0 event/Loop: use std::atomic_bool for the "quit" variable 
Fixes thread sanitizer warnings.
 2017-12-22 11:04:24 +01:00
Max Kellermann
b57e2f5521 event/DeferredMonitor: eliminate obsolete class 
Move its code to DeferEvent instead.
 2017-11-12 17:34:06 +01:00
Max Kellermann
59a8836924 event/SocketMonitor: add "noexcept" 2017-11-10 20:20:07 +01:00
Max Kellermann
30a5dd267b event/TimeoutMonitor: move code to new class TimerEvent 2017-08-29 16:28:27 +02:00
Max Kellermann
a1309a90ac event/Loop: use boost::intrusive::list to store IdleMonitors and DeferredMonitors 
The intrusive contains can easily erase items without searching
through the whole list.  This removes a good amount of runtime
overhead.
 2017-08-29 15:43:16 +02:00
Max Kellermann
010855a294 event/Loop: use boost::intrusive::multiset to store TimeoutMonitors 
By using an "intrusive" data structure, we can easily eliminate
struct TimerRecord.
 2017-08-29 14:42:59 +02:00
Max Kellermann
71ed3ff992 event/Loop: move TimerRecord::due to class TimeoutMonitor 
Prepare to eliminate the TimerRecord struct.
 2017-08-29 14:13:09 +02:00
Max Kellermann
d4266d0063 event/Loop: remove unused method TimerRecord::IsDue() 2017-08-29 13:41:11 +02:00
Max Kellermann
5ac72211cd event/Loop: set thread to current thread by default 
Allows eliminating lots of complexity and workarounds for bogus
assertion failures.
 2017-08-18 18:18:55 +02:00
Max Kellermann
a057b4f6d8 *: add lost of "noexcept" specifications 2017-06-04 12:46:48 +02:00
Max Kellermann
7372c931b3 event/Loop: make IsInsideOrNull() available in the NDEBUG build 
Fixes build breakage by commit 4e5271fcdf7; and this method does make
sense in non-debug builds.
 2017-02-09 21:21:49 +01:00
Max Kellermann
5900253b85 update copyright year 2017-01-03 20:48:59 +01:00
Max Kellermann
b042095ac2 event/Loop: use std::chrono 2016-12-28 01:15:08 +01:00
Max Kellermann
018c5ef731 event/Loop: use C++11 initializers 2016-12-27 23:13:26 +01:00
Max Kellermann
1aee89f5ea *: include cleanup (using iwyu) 2016-03-01 22:08:13 +01:00
Max Kellermann
1d67aa7bf2 update copyright year to 2016 2016-02-26 17:54:05 +01:00
Max Kellermann
712ed555e6 Copyright year 2015 2015-01-01 19:48:13 +01:00
Max Kellermann
4a28333039 event/Loop: remove the dummy constructor argument 2014-02-05 00:00:03 +01:00
Max Kellermann
4f83c60296 copyright year 2014 2014-01-13 22:31:55 +01:00
Max Kellermann
61b938d6fa event/Loop: allow scheduling events before Run() 
Add the debug-only flag "virgin" which gets checked by assert()
calls.  Fixes assertion failures when using zeroconf/avahi.
 2014-01-09 17:52:55 +01:00
Max Kellermann
e599b86424 event/Loop: try to avoid the WakeFD when adding DeferredMonitor 
Add a flag that indicates whether the EventLoop is currently "busy".
As long as that flag is set, it does not need to be woken up - we can
simply add the DeferredMonitor to the list, and it will be caught by
EventLoop very soon.  This eliminates nearly all of the
DeferredMonitor overhead when compared to IdleMonitor, rendering
IdleMonitor mostly obsolete.
 2014-01-05 02:15:34 +01:00
Max Kellermann
e9d764d7ad event/Loop: add attribute "again" 
Improved support for added events.
 2014-01-05 02:15:01 +01:00
Max Kellermann
6268955778 event/Loop: add thread-safety assertions 2014-01-05 02:14:31 +01:00
Max Kellermann
f685a48008 event/Loop: move code to HandleDeferred() 2014-01-05 01:35:12 +01:00
Max Kellermann
f0d3b47ad8 event/Loop: remove the GLib implementation 
Now that the remaining known bugs in poll() implementation are fixed,
we can go on without the GLib implementation.
 2014-01-04 19:31:23 +01:00
Max Kellermann
0f9ef2506f event/Loop: remove unused method AddCall() 2014-01-04 16:00:45 +01:00
Max Kellermann
a357d84dce event/DeferredMonitor: make fully thread-safe 
Instead of creating a new eventfd for each DeferredMonitor instance,
reuse EventLoop's eventfd, and add a std::list to EventLoop that
manages the list of pending DeferredMonitors.  This std::list is
protected by the same mutex as the "calls" list.

The bottom line is: reduced overhead because the per-instance eventfd
was eliminated, slightly added overhead due to Mutex usage (but
negligible), and we're thread-safe now.

This subsystem is now good enough to replace EventLoop::AddCall().
 2014-01-04 15:58:59 +01:00
Max Kellermann
af3f483924 event/Loop: document that AddCall() is thread-safe 2013-12-31 15:31:59 +01:00
Denis Krjuchkov
bb288f0284 event: introduce generic API for internal event loop 2013-11-28 17:06:16 +06:00
Denis Krjuchkov
46bab7e4b9 Add infrastructure for using multiple event loops 
This change adds two configuration options:

  --with-eventloop=[glib|internal|auto]
  --with-pollmethod=[epoll|auto]

First allows switching between GLib event loop and internal one.
Second chooses backend to use for internal event loop.
Conditional compilation symbols are changed accordingly.
Additional helper macro MPD_OPTIONAL_FUNC_NODEF is added as well.
 2013-11-27 17:28:36 +06:00
Max Kellermann
e53a25cbae event: add API documentation 2013-11-24 19:28:04 +01:00
Max Kellermann
154bdf0bca event/SocketMonitor: add method Abandon() 2013-11-06 19:05:45 +01:00
Max Kellermann
be2951b45f gcc.h: rename to Compiler.h 2013-10-15 09:21:59 +02:00
Max Kellermann
c1f4f1fdb6 EventLoop: new implementation using epoll 
Implement an event loop without GLib.
 2013-08-10 13:54:23 +02:00
Max Kellermann
d23c907a94 thread/Id: new class replacing GThread pointers 
Remove a GLib dependencies from class EventLoop and DatabaseLock.
 2013-08-10 09:00:04 +02:00
Max Kellermann
9ab0a1f5f1 EventLoop: add methodd IsInside() 
Track which thread runs the EventLoop and provide a check whether
we're currently inside.
 2013-08-08 23:04:01 +02:00
Max Kellermann
c043b337b1 EventLoop: un-inline Run() and others 
Prepare for adding more code.
 2013-08-08 23:03:49 +02:00
Max Kellermann
18e429a87e event/Loop: add method WakeUp() 2013-01-30 15:08:09 +01:00
Max Kellermann
d3a479b7fa event/TimeoutMonitor: wrapper for g_timeout_source_new() 2013-01-14 11:12:28 +01:00
Max Kellermann
e83f805b8f Main, IOThread: move GMainLoop setup code to class EventLoop 2013-01-14 09:15:49 +01:00