sdl-ios-xcode: src/thread/pthread/SDL

annotate src/thread/pthread/SDL_syssem.c @ 3468:789b97008d8a

My first OpenGL shader! Momma will be so proud! This shader implements the software renderer mask semantics where the source pixel is multiplied by the color and alpha modulation values and then any pixel with non-zero alpha is fully opaque. The OpenGL renderer on Mac OS X now passes all the automated render tests! :)

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 21 Nov 2009 05:29:31 +0000
parents	99210400e8b9
children	f7b03b6838cb

rev	line source
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 2765 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	13 Lesser General Public License for more details.
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	16 License along with this library; if not, write to the Free Software
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 #include <pthread.h>
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25 #include <semaphore.h>
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	26
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 #include "SDL_thread.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28 #include "SDL_timer.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 /* Wrapper around POSIX 1003.1b semaphores */
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31
2765 f55c87ae336b Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 2735 diff changeset	32 #if defined(__MACOSX__) \|\| defined(__IPHONEOS__)
1627 aee7ea396f59 Fixed bug #179 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	33 /* Mac OS X doesn't support sem_getvalue() as of version 10.4 */
aee7ea396f59 Fixed bug #179 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	34 #include "../generic/SDL_syssem.c"
aee7ea396f59 Fixed bug #179 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	35 #else
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	37 struct SDL_semaphore
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	38 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	39 sem_t sem;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 };
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42 /* Create a semaphore, initialized with value */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	43 SDL_sem *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	44 SDL_CreateSemaphore(Uint32 initial_value)
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	45 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	46 SDL_sem sem = (SDL_sem ) SDL_malloc(sizeof(SDL_sem));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	47 if (sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	48 if (sem_init(&sem->sem, 0, initial_value) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	49 SDL_SetError("sem_init() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	50 SDL_free(sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	51 sem = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	52 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	53 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	54 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	55 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	56 return sem;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 }
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	59 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	60 SDL_DestroySemaphore(SDL_sem * sem)
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	62 if (sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	63 sem_destroy(&sem->sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	64 SDL_free(sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	65 }
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 }
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	68 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	69 SDL_SemTryWait(SDL_sem * sem)
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	71 int retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	72
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	73 if (!sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	74 SDL_SetError("Passed a NULL semaphore");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	75 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	76 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	77 retval = SDL_MUTEX_TIMEDOUT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	78 if (sem_trywait(&sem->sem) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	79 retval = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	80 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	81 return retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	82 }
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	83
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	84 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	85 SDL_SemWait(SDL_sem * sem)
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	87 int retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	88
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	89 if (!sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	90 SDL_SetError("Passed a NULL semaphore");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	91 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	92 }
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	94 retval = sem_wait(&sem->sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	95 if (retval < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	96 SDL_SetError("sem_wait() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	97 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	98 return retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	99 }
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	101 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	102 SDL_SemWaitTimeout(SDL_sem * sem, Uint32 timeout)
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	103 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	104 int retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	105
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	106 if (!sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	107 SDL_SetError("Passed a NULL semaphore");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	108 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	109 }
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	111 /* Try the easy cases first */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	112 if (timeout == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	113 return SDL_SemTryWait(sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	114 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	115 if (timeout == SDL_MUTEX_MAXWAIT) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	116 return SDL_SemWait(sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	117 }
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	119 /* Ack! We have to busy wait... */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	120 /* FIXME: Use sem_timedwait()? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	121 timeout += SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	122 do {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	123 retval = SDL_SemTryWait(sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	124 if (retval == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	125 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	126 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	127 SDL_Delay(1);
2735 204be4fc2726 Final merge of Google Summer of Code 2008 work... Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	128 } while (SDL_GetTicks() < timeout);
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	129
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	130 return retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	131 }
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	133 Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	134 SDL_SemValue(SDL_sem * sem)
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	136 int ret = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	137 if (sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	138 sem_getvalue(&sem->sem, &ret);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	139 if (ret < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	140 ret = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	141 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	142 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	143 return (Uint32) ret;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 }
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	146 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	147 SDL_SemPost(SDL_sem * sem)
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	149 int retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	151 if (!sem) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	152 SDL_SetError("Passed a NULL semaphore");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	153 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	154 }
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	156 retval = sem_post(&sem->sem);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	157 if (retval < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	158 SDL_SetError("sem_post() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	159 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	160 return retval;
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161 }
1627 aee7ea396f59 Fixed bug #179 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	162
aee7ea396f59 Fixed bug #179 Sam Lantinga <slouken@libsdl.org> parents: 1487 diff changeset	163 #endif /* __MACOSX__ */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1851 diff changeset	164 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/thread/pthread/SDL_syssem.c @ 3468:789b97008d8a