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

annotate src/thread/riscos/SDL_syscond.c @ 3696:47d923feedb0

Fixed bug #935 Patrice Mandin Hello, I originally added pth support for threads in SDL 1.2 because on the Atari platform we did not have any thread library. I think pth support could be removed from SDL 1.3 for two reasons: - Atari platform removed - pth does not provides real (preemptive) threads, because it is user space, and expect the application to call one of its function to give CPU to another thread. So it is not exactly useful for applications, that expect threads to run simultaneously.

author	Sam Lantinga <slouken@libsdl.org>
date	Sun, 24 Jan 2010 20:47:20 +0000
parents	99210400e8b9
children	f7b03b6838cb

rev	line source
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	1 /*
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	2 SDL - Simple DirectMedia Layer
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 1895 diff changeset	3 Copyright (C) 1997-2009 Sam Lantinga
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	4
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	5 This library is free software; you can redistribute it and/or
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 955 diff changeset	6 modify it under the terms of the GNU Lesser General Public
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 955 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	9
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 955 diff changeset	13 Lesser General Public License for more details.
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 955 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 955 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 955 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	18
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	19 Sam Lantinga
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	20 slouken@libsdl.org
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 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"
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	23
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	24 /* RISC OS implementations uses pthreads based on linux code */
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	25
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	26 #if SDL_THREADS_DISABLED
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	27 #include "../generic/SDL_syscond.c"
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	28 #else
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	29 #include <sys/time.h>
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	30 #include <unistd.h>
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	31 #include <pthread.h>
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33 #include "SDL_thread.h"
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	34 #include "SDL_sysmutex_c.h"
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	35
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	36 struct SDL_cond
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	38 pthread_cond_t cond;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 };
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41 /* Create a condition variable */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	42 SDL_cond *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	43 SDL_CreateCond(void)
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	45 SDL_cond *cond;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	47 cond = (SDL_cond *) SDL_malloc(sizeof(SDL_cond));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	48 if (cond) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	49 if (pthread_cond_init(&cond->cond, NULL) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	50 SDL_SetError("pthread_cond_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: 1402 diff changeset	51 SDL_free(cond);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	52 cond = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	53 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	54 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	55 return (cond);
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 }
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 /* Destroy a condition variable */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 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: 1402 diff changeset	60 SDL_DestroyCond(SDL_cond * cond)
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 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: 1402 diff changeset	62 if (cond) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	63 pthread_cond_destroy(&cond->cond);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	64 SDL_free(cond);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	65 }
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66 }
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	67
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68 /* Restart one of the threads that are waiting on the condition variable */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	69 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	70 SDL_CondSignal(SDL_cond * cond)
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	71 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	72 int retval;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	74 if (!cond) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	75 SDL_SetError("Passed a NULL condition variable");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	76 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: 1402 diff changeset	77 }
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	78
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 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: 1402 diff changeset	80 if (pthread_cond_signal(&cond->cond) != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	81 SDL_SetError("pthread_cond_signal() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	82 retval = -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	83 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	84 return retval;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	85 }
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	87 /* Restart all threads that are waiting on the condition variable */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	88 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	89 SDL_CondBroadcast(SDL_cond * cond)
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	90 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	91 int retval;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	92
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	93 if (!cond) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	94 SDL_SetError("Passed a NULL condition variable");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	95 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: 1402 diff changeset	96 }
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	97
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	98 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: 1402 diff changeset	99 if (pthread_cond_broadcast(&cond->cond) != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	100 SDL_SetError("pthread_cond_broadcast() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	101 retval = -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	102 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	103 return retval;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104 }
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 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: 1402 diff changeset	106 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	107 SDL_CondWaitTimeout(SDL_cond * cond, SDL_mutex * mutex, Uint32 ms)
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	108 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	109 int retval;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	110 struct timeval delta;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	111 struct timespec abstime;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	112
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	113 if (!cond) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	114 SDL_SetError("Passed a NULL condition variable");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	115 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: 1402 diff changeset	116 }
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	117
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	118 gettimeofday(&delta, NULL);
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	119
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	120 abstime.tv_sec = delta.tv_sec + (ms / 1000);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	121 abstime.tv_nsec = (delta.tv_usec + (ms % 1000) * 1000) * 1000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	122 if (abstime.tv_nsec > 1000000000) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	123 abstime.tv_sec += 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	124 abstime.tv_nsec -= 1000000000;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	125 }
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 tryagain:
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	128 retval = pthread_cond_timedwait(&cond->cond, &mutex->id, &abstime);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	129 switch (retval) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	130 case EINTR:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	131 goto tryagain;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	132 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	133 case ETIMEDOUT:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	134 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: 1402 diff changeset	135 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	136 case 0:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	137 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	138 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	139 SDL_SetError("pthread_cond_timedwait() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	140 retval = -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	141 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 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: 1402 diff changeset	143 return retval;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144 }
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	145
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146 /* Wait on the condition variable, unlocking the provided mutex.
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	147 The mutex must be locked before entering this function!
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 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: 1402 diff changeset	149 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	150 SDL_CondWait(SDL_cond * cond, SDL_mutex * mutex)
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	152 int retval;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	154 if (!cond) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	155 SDL_SetError("Passed a NULL condition variable");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	156 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: 1402 diff changeset	157 }
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	159 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: 1402 diff changeset	160 if (pthread_cond_wait(&cond->cond, &mutex->id) != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	161 SDL_SetError("pthread_cond_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: 1402 diff changeset	162 retval = -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	163 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	164 return retval;
955 d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	165 }
d74fbf56f2f6 Date: Fri, 25 Jun 2004 13:29:15 +0100 Sam Lantinga <slouken@libsdl.org> parents: diff changeset	166 #endif
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	167 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/thread/riscos/SDL_syscond.c @ 3696:47d923feedb0