mirror of
https://github.com/netsurf-browser/netsurf
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66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/*
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* Copyright 2008 Vincent Sanders <vince@simtec.co.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef WINDOWS_SCHEDULE_H
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#define WINDOWS_SCHEDULE_H
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/**
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* Schedule a callback.
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*
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* \param ival interval before the callback should be made in ms
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* \param callback callback function
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* \param p user parameter, passed to callback function
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*
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* The callback function will be called as soon as possible after t ms have
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* passed.
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*/
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nserror win32_schedule(int ival, void (*callback)(void *p), void *p);
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/**
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* Process scheduled callbacks up to current time.
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*
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* This walks the list of outstanding scheduled events and dispatches
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* them if they have met their scheduled time. Due to legacy issues
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* there are a couple of subtleties with how this operates:
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*
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* - Generally there are so few entries on the list the overhead of
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* ordering the list exceeds the cost of simply enumerating them.
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*
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* - The scheduled time is the time *after* which we should call the
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* operation back, this can result in the next scheduled time
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* being zero. This is exceedingly rare as the core schedules in
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* 10ms (cs) quanta and we almost always get called to schedule
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* after the event time.
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*
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* - The callbacks can cause the schedule list to be re-arranged added
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* to or even completely deleted. This means we must reset the
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* list enumeration to the beginning every time an event is
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* dispatched.
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*
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* @return The number of milliseconds untill the next scheduled event
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* or -1 for no event.
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*/
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int schedule_run(void);
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/**
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* LOG all current scheduled events.
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*/
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void list_schedule(void);
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#endif
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