| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #if SDL_THREAD_OS2 |
| |
| /* Thread management routines for SDL */ |
| |
| #include "SDL_thread.h" |
| #include "../SDL_systhread.h" |
| #include "../SDL_thread_c.h" |
| #include "../SDL_systhread.h" |
| #include "SDL_systls_c.h" |
| #include "../../core/os2/SDL_os2.h" |
| #ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD |
| #error This source only adjusted for SDL_PASSED_BEGINTHREAD_ENDTHREAD |
| #endif |
| |
| #define INCL_DOSPROCESS |
| #define INCL_DOSERRORS |
| #include <os2.h> |
| #include <process.h> |
| |
| |
| typedef struct ThreadStartParms { |
| void *args; |
| pfnSDL_CurrentEndThread pfnCurrentEndThread; |
| } tThreadStartParms, *pThreadStartParms; |
| |
| static void RunThread(void *data) |
| { |
| pThreadStartParms pThreadParms = (pThreadStartParms) data; |
| pfnSDL_CurrentEndThread pfnEndThread = pThreadParms->pfnCurrentEndThread; |
| void *args = pThreadParms->args; |
| |
| SDL_free( pThreadParms ); |
| |
| if ( ppSDLTLSData != NULL ) |
| *ppSDLTLSData = NULL; |
| |
| SDL_RunThread( args ); |
| |
| if ( pfnEndThread != NULL ) |
| pfnEndThread(); |
| } |
| |
| |
| |
| int |
| SDL_SYS_CreateThread(SDL_Thread * thread, void *args, |
| pfnSDL_CurrentBeginThread pfnBeginThread, |
| pfnSDL_CurrentEndThread pfnEndThread) |
| { |
| pThreadStartParms pThreadParms = SDL_malloc( sizeof(tThreadStartParms) ); |
| |
| if ( pThreadParms == NULL ) |
| return SDL_OutOfMemory(); |
| |
| if (thread->stacksize == 0) |
| thread->stacksize = 65536; |
| |
| // Also save the real parameters we have to pass to thread function |
| pThreadParms->args = args; |
| |
| if (pfnBeginThread) { |
| // Save the function which we will have to call to clear the RTL of calling app! |
| pThreadParms->pfnCurrentEndThread = pfnEndThread; |
| // Start the thread using the runtime library of calling app! |
| thread->handle = (SYS_ThreadHandle) |
| pfnBeginThread( RunThread, NULL, thread->stacksize, pThreadParms ); |
| } |
| else { |
| pThreadParms->pfnCurrentEndThread = _endthread; |
| thread->handle = (SYS_ThreadHandle) |
| _beginthread( RunThread, NULL, thread->stacksize, pThreadParms ); |
| } |
| |
| if ( thread->handle == -1 ) |
| return SDL_SetError( "Not enough resources to create thread" ); |
| |
| return 0; |
| } |
| |
| void |
| SDL_SYS_SetupThread(const char *name) |
| { |
| return; |
| } |
| |
| SDL_threadID |
| SDL_ThreadID(void) |
| { |
| PTIB tib; |
| PPIB pib; |
| |
| DosGetInfoBlocks( &tib, &pib ); |
| return tib->tib_ptib2->tib2_ultid; |
| } |
| |
| int |
| SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority) |
| { |
| ULONG ulRC; |
| |
| ulRC = DosSetPriority( PRTYS_THREAD, |
| (priority < SDL_THREAD_PRIORITY_NORMAL)? PRTYC_IDLETIME : |
| (priority > SDL_THREAD_PRIORITY_NORMAL)? PRTYC_TIMECRITICAL : |
| PRTYC_REGULAR, |
| 0, 0 ); |
| if ( ulRC != NO_ERROR ) |
| return SDL_SetError( "DosSetPriority() failed, rc = %u", ulRC ); |
| |
| return 0; |
| } |
| |
| void |
| SDL_SYS_WaitThread(SDL_Thread * thread) |
| { |
| ULONG ulRC = DosWaitThread( (PTID)&thread->handle, DCWW_WAIT ); |
| |
| if ( ulRC != NO_ERROR ) |
| debug( "DosWaitThread() failed, rc = %u", ulRC ); |
| } |
| |
| void |
| SDL_SYS_DetachThread(SDL_Thread * thread) |
| { |
| /* nothing. */ |
| } |
| |
| #endif /* SDL_THREAD_OS2 */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |