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The jump hack is no longer used.

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This commit is contained in:
Sam Lantinga 2013-06-05 21:47:49 -07:00
parent eeffdf78ab
commit 9f08f67e67
5 changed files with 22 additions and 97 deletions
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1
src/video/uikit/SDL_uikitappdelegate.m
View file

@ -32,7 +32,6 @@
#include "SDL_uikitappdelegate.h"
#include "SDL_uikitmodes.h"
#include "../../events/SDL_events_c.h"
#include "jumphack.h"
#ifdef main
#undef main

47
src/video/uikit/SDL_uikitevents.m
View file

@ -44,39 +44,24 @@ UIKit_PumpEvents(_THIS)
if (!UIKit_EventPumpEnabled)
return;
/*
When the user presses the 'home' button on the iPod
the application exits -- immediatly.
/* Let the run loop run for a short amount of time: long enough for
touch events to get processed (which is important to get certain
elements of Game Center's GKLeaderboardViewController to respond
to touch input), but not long enough to introduce a significant
delay in the rest of the app.
*/
const CFTimeInterval seconds = 0.000002;
Unlike in Mac OS X, it appears there is no way to cancel the termination.
/* Pump most event types. */
SInt32 result;
do {
result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, seconds, TRUE);
} while (result == kCFRunLoopRunHandledSource);
This doesn't give the SDL user's application time to respond to an SDL_Quit event.
So what we do is that in the UIApplicationDelegate class (SDLUIApplicationDelegate),
when the delegate receives the ApplicationWillTerminate message, we execute
a longjmp statement to get back here, preventing an immediate exit.
*/
if (setjmp(*jump_env()) == 0) {
/* if we're setting the jump, rather than jumping back */
/* Let the run loop run for a short amount of time: long enough for
touch events to get processed (which is important to get certain
elements of Game Center's GKLeaderboardViewController to respond
to touch input), but not long enough to introduce a significant
delay in the rest of the app.
*/
const CFTimeInterval seconds = 0.000002;
/* Pump most event types. */
SInt32 result;
do {
result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, seconds, TRUE);
} while (result == kCFRunLoopRunHandledSource);
/* Make sure UIScrollView objects scroll properly. */
do {
result = CFRunLoopRunInMode((CFStringRef)UITrackingRunLoopMode, seconds, TRUE);
} while(result == kCFRunLoopRunHandledSource);
}
/* Make sure UIScrollView objects scroll properly. */
do {
result = CFRunLoopRunInMode((CFStringRef)UITrackingRunLoopMode, seconds, TRUE);
} while(result == kCFRunLoopRunHandledSource);
}
#endif /* SDL_VIDEO_DRIVER_UIKIT */

19
src/video/uikit/jumphack.c
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@ -1,19 +0,0 @@
/*
* jumphack.c
* SDLiPhoneOS
*
*/
#include "jumphack.h"
/* see SDL_uikitevents.m for more info */
/* stores the information we need to jump back */
jmp_buf env;
/* returns the jump environment for setting / getting purposes */
jmp_buf *
jump_env(void)
{
return &env;
}

18
src/video/uikit/jumphack.h
View file

@ -1,18 +0,0 @@
/*
* jumphack.h
* SDLiPhoneOS
*
*/
#ifndef _jumphack_h
#define _jumphack_h
#include "setjmp.h"
/* see SDL_uikitevents.m for more info */
extern jmp_buf *jump_env(void);
#endif
/* vi: set ts=4 sw=4 expandtab: */