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comparison src/thread/os2/SDL_systhread.c @ 1895:c121d94672cb

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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 10 Jul 2006 21:04:37 +0000
parents 9ebbbb4ae53b
children 4436464c4f51
comparison
equal deleted inserted replaced
1894:c69cee13dd76 1895:c121d94672cb
32 #include "../SDL_systhread.h" 32 #include "../SDL_systhread.h"
33 #include "../SDL_thread_c.h" 33 #include "../SDL_thread_c.h"
34 34
35 typedef struct ThreadStartParms 35 typedef struct ThreadStartParms
36 { 36 {
37 void *args; 37 void *args;
38 pfnSDL_CurrentEndThread pfnCurrentEndThread; 38 pfnSDL_CurrentEndThread pfnCurrentEndThread;
39 } tThreadStartParms, *pThreadStartParms; 39 } tThreadStartParms, *pThreadStartParms;
40 40
41 static void threadfunc(void *pparm) 41 static void
42 threadfunc(void *pparm)
42 { 43 {
43 pThreadStartParms pThreadParms = pparm; 44 pThreadStartParms pThreadParms = pparm;
44 pfnSDL_CurrentEndThread pfnCurrentEndThread = NULL; 45 pfnSDL_CurrentEndThread pfnCurrentEndThread = NULL;
45 46
46 // Call the thread function! 47 // Call the thread function!
47 SDL_RunThread(pThreadParms->args); 48 SDL_RunThread(pThreadParms->args);
48 49
49 // Get the current endthread we have to use! 50 // Get the current endthread we have to use!
50 if (pThreadParms) 51 if (pThreadParms) {
51 { 52 pfnCurrentEndThread = pThreadParms->pfnCurrentEndThread;
52 pfnCurrentEndThread = pThreadParms->pfnCurrentEndThread; 53 SDL_free(pThreadParms);
53 SDL_free(pThreadParms); 54 }
54 } 55 // Call endthread!
55 // Call endthread! 56 if (pfnCurrentEndThread)
56 if (pfnCurrentEndThread) 57 (*pfnCurrentEndThread) ();
57 (*pfnCurrentEndThread)();
58 } 58 }
59 59
60 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread) 60 int
61 SDL_SYS_CreateThread(SDL_Thread * thread, void *args,
62 pfnSDL_CurrentBeginThread pfnBeginThread,
63 pfnSDL_CurrentEndThread pfnEndThread)
61 { 64 {
62 pThreadStartParms pThreadParms = SDL_malloc(sizeof(tThreadStartParms)); 65 pThreadStartParms pThreadParms = SDL_malloc(sizeof(tThreadStartParms));
63 if (!pThreadParms) 66 if (!pThreadParms) {
64 { 67 SDL_SetError("Not enough memory to create thread");
65 SDL_SetError("Not enough memory to create thread"); 68 return (-1);
66 return(-1); 69 }
67 } 70 // Save the function which we will have to call to clear the RTL of calling app!
68 71 pThreadParms->pfnCurrentEndThread = pfnEndThread;
69 // Save the function which we will have to call to clear the RTL of calling app! 72 // Also save the real parameters we have to pass to thread function
70 pThreadParms->pfnCurrentEndThread = pfnEndThread; 73 pThreadParms->args = args;
71 // Also save the real parameters we have to pass to thread function 74 // Start the thread using the runtime library of calling app!
72 pThreadParms->args = args; 75 thread->threadid = thread->handle =
73 // Start the thread using the runtime library of calling app! 76 (*pfnBeginThread) (threadfunc, NULL, 512 * 1024, pThreadParms);
74 thread->threadid = thread->handle = (*pfnBeginThread)(threadfunc, NULL, 512*1024, pThreadParms); 77 if ((int) thread->threadid <= 0) {
75 if ((int)thread->threadid <= 0) 78 SDL_SetError("Not enough resources to create thread");
76 { 79 return (-1);
77 SDL_SetError("Not enough resources to create thread"); 80 }
78 return(-1); 81 return (0);
79 }
80 return(0);
81 } 82 }
82 83
83 void SDL_SYS_SetupThread(void) 84 void
85 SDL_SYS_SetupThread(void)
84 { 86 {
85 return; 87 return;
86 } 88 }
87 89
88 DECLSPEC Uint32 SDLCALL SDL_ThreadID(void) 90 DECLSPEC Uint32 SDLCALL
91 SDL_ThreadID(void)
89 { 92 {
90 PTIB tib; 93 PTIB tib;
91 DosGetInfoBlocks(&tib, NULL); 94 DosGetInfoBlocks(&tib, NULL);
92 return((Uint32) (tib->tib_ptib2->tib2_ultid)); 95 return ((Uint32) (tib->tib_ptib2->tib2_ultid));
93 } 96 }
94 97
95 void SDL_SYS_WaitThread(SDL_Thread *thread) 98 void
99 SDL_SYS_WaitThread(SDL_Thread * thread)
96 { 100 {
97 TID tid = thread->handle; 101 TID tid = thread->handle;
98 DosWaitThread(&tid, DCWW_WAIT); 102 DosWaitThread(&tid, DCWW_WAIT);
99 } 103 }
100 104
101 /* WARNING: This function is really a last resort. 105 /* WARNING: This function is really a last resort.
102 * Threads should be signaled and then exit by themselves. 106 * Threads should be signaled and then exit by themselves.
103 * TerminateThread() doesn't perform stack and DLL cleanup. 107 * TerminateThread() doesn't perform stack and DLL cleanup.
104 */ 108 */
105 void SDL_SYS_KillThread(SDL_Thread *thread) 109 void
110 SDL_SYS_KillThread(SDL_Thread * thread)
106 { 111 {
107 DosKillThread(thread->handle); 112 DosKillThread(thread->handle);
108 } 113 }
114
115 /* vi: set ts=4 sw=4 expandtab: */