| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2021 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> |
| |
| |
| static void RunThread(void *data) |
| { |
| SDL_Thread *thread = (SDL_Thread *) data; |
| pfnSDL_CurrentEndThread pfnEndThread = (pfnSDL_CurrentEndThread) thread->endfunc; |
| |
| if (ppSDLTLSData != NULL) |
| *ppSDLTLSData = NULL; |
| |
| SDL_RunThread(thread); |
| |
| if (pfnEndThread != NULL) |
| pfnEndThread(); |
| } |
| |
| int |
| SDL_SYS_CreateThread(SDL_Thread * thread, |
| pfnSDL_CurrentBeginThread pfnBeginThread, |
| pfnSDL_CurrentEndThread pfnEndThread) |
| { |
| if (thread->stacksize == 0) |
| thread->stacksize = 65536; |
| |
| if (pfnBeginThread) { |
| /* Save the function which we will have to call to clear the RTL of calling app! */ |
| thread->endfunc = pfnEndThread; |
| /* Start the thread using the runtime library of calling app! */ |
| thread->handle = (SYS_ThreadHandle) |
| pfnBeginThread(RunThread, NULL, thread->stacksize, thread); |
| } else { |
| thread->endfunc = _endthread; |
| thread->handle = (SYS_ThreadHandle) |
| _beginthread(RunThread, NULL, thread->stacksize, thread); |
| } |
| |
| if (thread->handle == -1) |
| return SDL_SetError("Not enough resources to create thread"); |
| |
| return 0; |
| } |
| |
| void |
| SDL_SYS_SetupThread(const char *name) |
| { |
| /* nothing. */ |
| } |
| |
| 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_os2("DosWaitThread() failed, rc = %u", ulRC); |
| } |
| } |
| |
| void |
| SDL_SYS_DetachThread(SDL_Thread * thread) |
| { |
| /* nothing. */ |
| } |
| |
| #endif /* SDL_THREAD_OS2 */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |