[17] | 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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