annotate src/thread/pthread/SDL_syscond.c @ 4734:0c7c67d4e6ee

Added On_Char method to Window_Listener for WM_CHAR messages. Removed a lot of TSF code because part of it was wrong and part was too complicated. Added Clear method to clear the window. IME input should work in both windowed mode and fullscreen mode with these changes. I have tested on Windows XP SP3 and Windows 7 Ultimate in VirtualBox. When you type a character (with an IME or not), the console will show the code point as U+XXXX. You use Left Alt+Shift (or whatever you have it set to) to switch input languages as usual. Hit ESC to exit (or close the window in windowed mode). The program will pause before exiting so you can review the console output (press a key to exit).
author dewyatt
date Wed, 09 Jun 2010 00:03:54 -0400
parents f7b03b6838cb
children b530ef003506
rev   line source
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1 /*
19418e4422cb New configure-based build system. Still work in progress, but much improved
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2 SDL - Simple DirectMedia Layer
3697
f7b03b6838cb Fixed bug #926
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
19418e4422cb New configure-based build system. Still work in progress, but much improved
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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
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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
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7 License as published by the Free Software Foundation; either
19418e4422cb New configure-based build system. Still work in progress, but much improved
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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
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9
19418e4422cb New configure-based build system. Still work in progress, but much improved
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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
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
19418e4422cb New configure-based build system. Still work in progress, but much improved
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19418e4422cb New configure-based build system. Still work in progress, but much improved
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13 Lesser General Public License for more details.
19418e4422cb New configure-based build system. Still work in progress, but much improved
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14
19418e4422cb New configure-based build system. Still work in progress, but much improved
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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
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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
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
19418e4422cb New configure-based build system. Still work in progress, but much improved
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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d910939febfa Use consistent identifiers for the various platforms we support.
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22 #include "SDL_config.h"
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23
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24 #include <sys/time.h>
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25 #include <unistd.h>
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26 #include <errno.h>
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27 #include <pthread.h>
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28
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29 #include "SDL_thread.h"
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30 #include "SDL_sysmutex_c.h"
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31
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32 struct SDL_cond
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33 {
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34 pthread_cond_t cond;
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35 };
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36
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37 /* Create a condition variable */
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38 SDL_cond *
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39 SDL_CreateCond(void)
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40 {
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41 SDL_cond *cond;
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42
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43 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.
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44 if (cond) {
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45 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.
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46 SDL_SetError("pthread_cond_init() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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47 SDL_free(cond);
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48 cond = NULL;
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49 }
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50 }
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51 return (cond);
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52 }
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53
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54 /* Destroy a condition variable */
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55 void
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56 SDL_DestroyCond(SDL_cond * cond)
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57 {
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58 if (cond) {
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59 pthread_cond_destroy(&cond->cond);
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60 SDL_free(cond);
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61 }
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62 }
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63
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64 /* Restart one of the threads that are waiting on the condition variable */
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65 int
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66 SDL_CondSignal(SDL_cond * cond)
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67 {
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68 int retval;
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69
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70 if (!cond) {
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71 SDL_SetError("Passed a NULL condition variable");
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72 return -1;
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73 }
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74
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75 retval = 0;
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76 if (pthread_cond_signal(&cond->cond) != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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77 SDL_SetError("pthread_cond_signal() failed");
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78 retval = -1;
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79 }
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80 return retval;
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81 }
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82
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83 /* Restart all threads that are waiting on the condition variable */
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84 int
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85 SDL_CondBroadcast(SDL_cond * cond)
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86 {
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87 int retval;
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88
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89 if (!cond) {
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90 SDL_SetError("Passed a NULL condition variable");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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91 return -1;
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92 }
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93
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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94 retval = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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95 if (pthread_cond_broadcast(&cond->cond) != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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96 SDL_SetError("pthread_cond_broadcast() failed");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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97 retval = -1;
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98 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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99 return retval;
1361
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100 }
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101
1895
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102 int
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103 SDL_CondWaitTimeout(SDL_cond * cond, SDL_mutex * mutex, Uint32 ms)
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104 {
1895
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105 int retval;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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106 struct timeval delta;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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107 struct timespec abstime;
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108
1895
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109 if (!cond) {
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110 SDL_SetError("Passed a NULL condition variable");
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111 return -1;
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112 }
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113
1895
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114 gettimeofday(&delta, NULL);
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115
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116 abstime.tv_sec = delta.tv_sec + (ms / 1000);
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117 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.
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118 if (abstime.tv_nsec > 1000000000) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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119 abstime.tv_sec += 1;
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120 abstime.tv_nsec -= 1000000000;
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121 }
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122
19418e4422cb New configure-based build system. Still work in progress, but much improved
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123 tryagain:
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124 retval = pthread_cond_timedwait(&cond->cond, &mutex->id, &abstime);
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125 switch (retval) {
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126 case EINTR:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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127 goto tryagain;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
128 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
129 case ETIMEDOUT:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
130 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
131 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
132 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
133 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
134 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
135 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
136 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
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 }
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 return retval;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 }
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 /* Wait on the condition variable, unlocking the provided mutex.
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 The mutex must be locked before entering this function!
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 */
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
145 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
146 SDL_CondWait(SDL_cond * cond, SDL_mutex * mutex)
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 {
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
148 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
149
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 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
151 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
152 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
153 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
154
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
155 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
156 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
157 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
158 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
159 }
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 return 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
161 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162
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
163 /* vi: set ts=4 sw=4 expandtab: */