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aa39a0557c
- Stop using a custom thread for listening to kqueue(2) events. Instead call kevent(2) in non blocking mode in a monitor callback. Under the hood poll(2) is used to figure out if new events are available. - Do not use a socketpair with a custom protocol requiring 2 supplementary context switches per event to commicate between multiple threads. Calling kevent(2), in non blocking mode, to add/remove events is fine from any context. - Add kqueue(2) events without the EV_ONESHOT flag. This removes a race where some notifications were lost because events had to be re-added for every new notification. - Get rid of the global hash table and its associated lock and races. Use the 'cookie' argument of kevent(2) to pass the associated descriptor when registering an event. - Fix _kh_file_appeared_cb() by properly passing a monitor instead of a source to g_file_monitor_emit_event(). - Properly refcount sources. - Remove a lot of abstraction making it harder to fix the remaining issues. https://bugzilla.gnome.org/show_bug.cgi?id=739424
54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
/*******************************************************************************
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Copyright (c) 2011, 2012 Dmitry Matveev <me@dmitrymatveev.co.uk>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*******************************************************************************/
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#ifndef __KQUEUE_HELPER_H
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#define __KQUEUE_HELPER_H
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#include <gio/glocalfilemonitor.h>
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#include <gio/gfilemonitor.h>
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#include "dep-list.h"
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/**
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* kqueue_sub:
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* @filename: a name of the file to monitor
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* @fd: the associated file descriptor (used by kqueue)
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*
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* Represents a subscription on a file or directory.
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*/
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typedef struct
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{
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GLocalFileMonitor *mon;
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GFileMonitorSource *source;
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gchar* filename;
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int fd;
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dep_list* deps;
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int is_dir;
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} kqueue_sub;
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gboolean _kqsub_start_watching (kqueue_sub *sub);
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void _kh_dir_diff (kqueue_sub *sub);
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void _km_add_missing (kqueue_sub *sub);
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void _km_remove (kqueue_sub *sub);
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#endif /* __KQUEUE_HELPER_H */
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