1 | /* -*- mode: C; tab-width:8; c-basic-offset:8 -*- |
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2 | * vi:set ts=8: |
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3 | * |
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4 | * al_threadlib.c |
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5 | */ |
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6 | |
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7 | #include <stdlib.h> |
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8 | #include "al_threadlib.h" |
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9 | |
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10 | #if defined(USE_POSIXTHREADING) |
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11 | |
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12 | typedef int ( *ptfunc ) ( void * ); |
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13 | |
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14 | static void *runThread( void *data ) AL_ATTRIBUTE_NORETURN_; |
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15 | |
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16 | static void *runThread( void *data ) |
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17 | { |
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18 | ptfunc fn = ( ptfunc ) data; |
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19 | fn( NULL ); |
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20 | pthread_exit( NULL ); |
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21 | #ifndef HAVE___ATTRIBUTE__ |
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22 | return NULL; |
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23 | #endif |
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24 | } |
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25 | |
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26 | ThreadID _alCreateThread( int ( *fn ) ( void * ) ) |
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27 | { |
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28 | pthread_attr_t type; |
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29 | pthread_t *thread = malloc( sizeof *thread ); |
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30 | if( thread == NULL ) { |
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31 | return NULL; |
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32 | } |
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33 | |
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34 | if( pthread_attr_init( &type ) != 0 ) { |
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35 | free( thread ); |
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36 | return NULL; |
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37 | } |
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38 | |
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39 | pthread_attr_setdetachstate( &type, PTHREAD_CREATE_JOINABLE ); |
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40 | |
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41 | if( pthread_create( thread, &type, runThread, ( void * ) fn ) != 0 ) { |
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42 | free( thread ); |
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43 | return NULL; |
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44 | } |
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45 | |
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46 | return thread; |
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47 | } |
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48 | |
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49 | int _alWaitThread( ThreadID thread ) |
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50 | { |
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51 | int retval = pthread_join( *thread, NULL ); |
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52 | free( thread ); |
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53 | return retval; |
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54 | } |
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55 | |
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56 | unsigned int _alSelfThread( void ) |
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57 | { |
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58 | return ( unsigned int ) pthread_self( ); |
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59 | } |
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60 | |
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61 | void _alExitThread( void ) |
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62 | { |
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63 | pthread_exit( NULL ); |
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64 | } |
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65 | |
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66 | #elif defined(USE_WINDOWSTHREADING) |
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67 | |
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68 | /* for _alMicroSleep */ |
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69 | #include "al_main.h" |
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70 | |
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71 | ThreadID _alCreateThread( int ( *fn ) ( void * ) ) |
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72 | { |
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73 | DWORD dummy; |
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74 | return CreateThread( NULL, 0, ( LPTHREAD_START_ROUTINE ) fn, NULL, 0, |
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75 | &dummy ); |
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76 | } |
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77 | |
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78 | int _alWaitThread( ThreadID thread ) |
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79 | { |
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80 | int tries = 20; /* gets tries iterations before we nuke it */ |
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81 | const int interval = 40000; |
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82 | |
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83 | do { |
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84 | DWORD ExitCode; |
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85 | if( GetExitCodeThread( thread, &ExitCode ) == 0 ) { |
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86 | break; |
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87 | } |
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88 | |
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89 | /* thread is still running, be nice and wait a bit */ |
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90 | _alMicroSleep( interval ); |
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91 | } while( tries-- ); |
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92 | |
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93 | return ( TerminateThread( thread, 0 ) == 0 ) ? -1 : 0; |
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94 | } |
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95 | |
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96 | void _alExitThread( void ) |
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97 | { |
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98 | ExitThread( 0 ); |
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99 | } |
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100 | |
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101 | unsigned int _alSelfThread( void ) |
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102 | { |
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103 | return ( unsigned int ) GetCurrentThreadId( ); |
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104 | } |
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105 | |
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106 | #elif defined(USE_MORPHOSTHREADING) |
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107 | |
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108 | #include <dos/dostags.h> |
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109 | #include <proto/dos.h> |
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110 | #include <proto/exec.h> |
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111 | |
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112 | #include "al_types.h" |
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113 | |
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114 | struct ThreadStartMsg { |
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115 | struct Message tsm_Msg; |
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116 | int tsm_Result; |
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117 | }; |
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118 | |
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119 | ThreadID _alCreateThread( int ( *fn ) ( void * ) ) |
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120 | { |
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121 | struct ThreadData *thread = |
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122 | AllocVec( sizeof( struct ThreadData ), MEMF_PUBLIC ); |
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123 | if( thread == NULL ) { |
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124 | return NULL; |
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125 | } |
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126 | |
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127 | thread->td_MsgPort = CreateMsgPort( ); |
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128 | if( !thread->td_MsgPort ) { |
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129 | FreeVec( thread ); |
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130 | return NULL; |
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131 | } |
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132 | |
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133 | struct ThreadStartMsg *startup_msg = |
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134 | AllocVec( sizeof( struct ThreadStartMsg ), |
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135 | MEMF_PUBLIC | MEMF_CLEAR ); |
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136 | if( startup_msg == NULL ) { |
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137 | DeleteMsgPort( thread->td_MsgPort ); |
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138 | FreeVec( thread ); |
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139 | return NULL; |
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140 | } |
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141 | |
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142 | startup_msg->tsm_Msg.mn_Node.ln_Type = NT_MESSAGE; |
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143 | startup_msg->tsm_Msg.mn_ReplyPort = thread->td_MsgPort; |
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144 | startup_msg->tsm_Msg.mn_Length = sizeof( *startup_msg ); |
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145 | |
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146 | thread->td_Thread = |
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147 | CreateNewProcTags( NP_Entry, ( ULONG ) fn, NP_Name, ( ULONG ) |
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148 | "OpenAL Thread", |
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149 | NP_CodeType, |
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150 | CODETYPE_PPC, |
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151 | NP_StartupMsg, |
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152 | ( ULONG ) startup_msg, |
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153 | NP_PPC_Arg1, 0, TAG_DONE ); |
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154 | if( !thread->td_Thread ) { |
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155 | FreeVec( startup_msg ); |
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156 | DeleteMsgPort( thread->td_MsgPort ); |
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157 | FreeVec( thread ); |
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158 | return NULL; |
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159 | } |
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160 | |
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161 | return thread; |
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162 | } |
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163 | |
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164 | int _alWaitThread( ThreadID thread ) |
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165 | { |
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166 | struct ThreadStartMsg *tsm; |
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167 | int retval; |
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168 | WaitPort( thread->td_MsgPort ); |
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169 | tsm = ( struct ThreadStartMsg * ) GetMsg( thread->td_MsgPort ); |
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170 | DeleteMsgPort( thread->td_MsgPort ); |
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171 | retval = tsm->tsm_Result; |
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172 | FreeVec( tsm ); |
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173 | FreeVec( thread ); |
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174 | return retval; |
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175 | } |
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176 | |
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177 | unsigned int _alSelfThread( void ) |
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178 | { |
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179 | return ( unsigned int ) FindTask( NULL ); |
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180 | } |
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181 | |
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182 | void _alExitThread( void ) |
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183 | { |
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184 | struct ThreadStartMsg *msg; |
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185 | if( NewGetTaskAttrs( NULL, &msg, sizeof( msg ), TASKINFOTYPE_STARTUPMSG, |
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186 | TAG_DONE ) && msg ) |
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187 | msg->tsm_Result = 0; |
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188 | /*RemTask(NULL); */ |
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189 | } |
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190 | |
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191 | #endif |
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