Mercurial > sdl-ios-xcode
view include/SDL_quit.h @ 1157:baf35853ad54
Date: Mon, 10 Oct 2005 13:09:32 +0300
From: Tommi Kyntola <tommi.kyntola@ray.fi>
To: sdl@libsdl.org
Subject: [SDL] [RFC] get_ticks broken on linux
It uses gettimeofday to calculate the timedifference.
Gettimeofday returns current time which is seldom monotonous.
This breaks SDL timer subsystem. (time callbacks and all that
get borked when the time difference ms is suddenly ~ 2^32)
I posted a message about this earlier but got no response.
Some thoughts on this matter would be appreciated.
(Or even an explanation for the lack of interest.)
A patch below would use the posix timers that have been around
since posix 93 and do provide a good source of monotonous time
on linux boxes (and on few others too).
The following patch is also availabe at:
http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch
It's against 1.2.9, but I can easily rediffit against
the cvs branch is needed.
cheers,
Tommi Kyntola tommi.kyntola@ray.fi
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Tue, 11 Oct 2005 18:16:12 +0000 |
parents | b8d311d90021 |
children | c9b51268668f |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* Include file for SDL quit event handling */ #ifndef _SDL_quit_h #define _SDL_quit_h /* An SDL_QUITEVENT is generated when the user tries to close the application window. If it is ignored or filtered out, the window will remain open. If it is not ignored or filtered, it is queued normally and the window is allowed to close. When the window is closed, screen updates will complete, but have no effect. SDL_Init() installs signal handlers for SIGINT (keyboard interrupt) and SIGTERM (system termination request), if handlers do not already exist, that generate SDL_QUITEVENT events as well. There is no way to determine the cause of an SDL_QUITEVENT, but setting a signal handler in your application will override the default generation of quit events for that signal. */ /* There are no functions directly affecting the quit event */ #define SDL_QuitRequested() \ (SDL_PumpEvents(), SDL_PeepEvents(NULL,0,SDL_PEEKEVENT,SDL_QUITMASK)) #endif /* _SDL_quit_h */