Mercurial > sdl-ios-xcode
annotate src/thread/pth/SDL_syscond.c @ 663:8bedd6d61642
Date: Sat, 2 Aug 2003 16:22:51 +0300
From: "Mike Gorchak"
Subject: New patches for QNX6
Here my patches for the SDL/QNX:
QNXSDL.diff - diff to non-QNX related sources:
- updated BUGS file, I think QNX6 is now will be officially supported
- configure.in - added shared library support for QNX, and removed dependency between the ALSA and QNX6.
- SDL_audio.c - added QNX NTO sound bootstrap insted of ALSA's.
- SDL_sysaudio.h - the same.
- SDL_nto_audio.c - the same.
- SDL_video.c - right now, QNX doesn't offer any method to obtain pointers to the OpenGL functions by function name, so they must be hardcoded in library, otherwise OpenGL will not be supported.
- testsprite.c - fixed: do not draw vertical red line if we are in non-double-buffered mode.
sdlqnxph.tar.gz - archive of the ./src/video/photon/* . Too many changes in code to make diffs :) :
+ Added stub for support hide/unhide window event
+ Added full YUV overlays support.
+ Added window maximize support.
+ Added mouse wheel events.
+ Added support for some specific key codes in Unicode mode (like ESC).
+ Added more checks to the all memory allocation code.
+ Added SDL_DOUBLEBUF support in all fullscreen modes.
+ Added fallback to window mode, if desired fullscreen mode is not supported.
+ Added stub support for the GL_LoadLibrary and GL_GetProcAddress functions.
+ Added resizable window support without caption.
! Fixed bug in the Ph_EV_EXPOSE event handler, when rectangles to update is 0 and when width or height of the rectangle is 0.
! Fixed bug in the event handler code. Events has not been passed to the window widget handler.
! Fixed codes for Win keys (Super/Hyper/Menu).
! Fixed memory leak, when deallocation palette.
! Fixed palette emulation code bugs.
! Fixed fullscreen and hwsurface handling.
! Fixed CLOSE button bug. First event was passed to the handler, but second terminated the application. Now all events passed to the application correctly.
- Removed all printfs in code, now SDL_SetError used instead of them.
- Disabled ToggleFullScreen function.
README.QNX - updated README.QNX file. Added much more issues.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 04 Aug 2003 00:52:42 +0000 |
parents | 1d74ddc90cb2 |
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329
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1 /* |
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2 * GNU pth conditions variables |
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3 * |
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4 * Patrice Mandin |
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5 */ |
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6 |
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7 #include <stdio.h> |
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8 #include <stdlib.h> |
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9 #include <pth.h> |
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10 |
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11 #include "SDL_error.h" |
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12 #include "SDL_thread.h" |
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13 #include "SDL_syscond_c.h" |
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14 #include "SDL_sysmutex_c.h" |
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15 |
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16 /* Create a condition variable */ |
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17 SDL_cond * SDL_CreateCond(void) |
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18 { |
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19 SDL_cond *cond; |
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20 |
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21 cond = (SDL_cond *) malloc(sizeof(SDL_cond)); |
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22 if ( cond ) { |
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23 if ( pth_cond_init(&(cond->condpth_p)) < 0 ) { |
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24 SDL_SetError("pthread_cond_init() failed"); |
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25 free(cond); |
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26 cond = NULL; |
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27 } |
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28 } else { |
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29 SDL_OutOfMemory(); |
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30 } |
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31 return(cond); |
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32 } |
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33 |
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34 /* Destroy a condition variable */ |
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35 void SDL_DestroyCond(SDL_cond *cond) |
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36 { |
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37 if ( cond ) { |
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38 free(cond); |
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39 } |
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40 } |
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41 |
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42 /* Restart one of the threads that are waiting on the condition variable */ |
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43 int SDL_CondSignal(SDL_cond *cond) |
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44 { |
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45 int retval; |
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46 |
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47 if ( ! cond ) { |
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48 SDL_SetError("Passed a NULL condition variable"); |
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49 return -1; |
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50 } |
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51 |
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52 retval = 0; |
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53 if ( pth_cond_notify(&(cond->condpth_p), FALSE) != 0 ) { |
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54 SDL_SetError("pth_cond_notify() failed"); |
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55 retval = -1; |
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56 } |
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57 return retval; |
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58 } |
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59 |
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60 /* Restart all threads that are waiting on the condition variable */ |
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61 int SDL_CondBroadcast(SDL_cond *cond) |
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62 { |
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63 int retval; |
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64 |
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65 if ( ! cond ) { |
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66 SDL_SetError("Passed a NULL condition variable"); |
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67 return -1; |
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68 } |
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69 |
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70 retval = 0; |
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71 if ( pth_cond_notify(&(cond->condpth_p), TRUE) != 0 ) { |
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72 SDL_SetError("pth_cond_notify() failed"); |
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73 retval = -1; |
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74 } |
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75 return retval; |
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76 } |
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77 |
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78 /* Wait on the condition variable for at most 'ms' milliseconds. |
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79 The mutex must be locked before entering this function! |
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80 The mutex is unlocked during the wait, and locked again after the wait. |
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81 |
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82 Typical use: |
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83 |
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84 Thread A: |
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85 SDL_LockMutex(lock); |
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86 while ( ! condition ) { |
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87 SDL_CondWait(cond); |
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88 } |
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89 SDL_UnlockMutex(lock); |
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90 |
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91 Thread B: |
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92 SDL_LockMutex(lock); |
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93 ... |
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94 condition = true; |
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95 ... |
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96 SDL_UnlockMutex(lock); |
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97 */ |
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98 int SDL_CondWaitTimeout(SDL_cond *cond, SDL_mutex *mutex, Uint32 ms) |
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99 { |
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100 int retval; |
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101 pth_event_t ev; |
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102 int sec; |
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103 |
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104 if ( ! cond ) { |
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105 SDL_SetError("Passed a NULL condition variable"); |
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106 return -1; |
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107 } |
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108 |
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109 retval = 0; |
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110 |
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111 sec = ms/1000; |
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112 ev = pth_event(PTH_EVENT_TIME, pth_timeout(sec,(ms-sec*1000)*1000)); |
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113 |
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114 if ( pth_cond_await(&(cond->condpth_p), &(mutex->mutexpth_p), ev) != 0 ) { |
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115 SDL_SetError("pth_cond_await() failed"); |
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116 retval = -1; |
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117 } |
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118 |
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119 pth_event_free(ev, PTH_FREE_ALL); |
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120 |
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121 return retval; |
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122 } |
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123 |
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124 /* Wait on the condition variable forever */ |
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125 int SDL_CondWait(SDL_cond *cond, SDL_mutex *mutex) |
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126 { |
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127 int retval; |
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128 |
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129 if ( ! cond ) { |
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130 SDL_SetError("Passed a NULL condition variable"); |
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131 return -1; |
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132 } |
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133 |
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134 retval = 0; |
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135 if ( pth_cond_await(&(cond->condpth_p), &(mutex->mutexpth_p), NULL) != 0 ) { |
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136 SDL_SetError("pth_cond_await() failed"); |
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137 retval = -1; |
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138 } |
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139 return retval; |
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140 } |