/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_THREAD_OS2
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/* Thread management routines for SDL */
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#include "SDL_thread.h"
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#include "../SDL_systhread.h"
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#include "../SDL_thread_c.h"
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#include "../SDL_systhread.h"
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#include "SDL_systls_c.h"
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#include "../../core/os2/SDL_os2.h"
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#ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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#error This source only adjusted for SDL_PASSED_BEGINTHREAD_ENDTHREAD
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#endif
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#define INCL_DOSPROCESS
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#define INCL_DOSERRORS
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#include <os2.h>
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#include <process.h>
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static void RunThread(void *data)
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{
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SDL_Thread *thread = (SDL_Thread *) data;
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pfnSDL_CurrentEndThread pfnEndThread = (pfnSDL_CurrentEndThread) thread->endfunc;
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if (ppSDLTLSData != NULL)
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*ppSDLTLSData = NULL;
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SDL_RunThread(thread);
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if (pfnEndThread != NULL)
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pfnEndThread();
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}
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int
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SDL_SYS_CreateThread(SDL_Thread * thread,
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pfnSDL_CurrentBeginThread pfnBeginThread,
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pfnSDL_CurrentEndThread pfnEndThread)
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{
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if (thread->stacksize == 0)
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thread->stacksize = 65536;
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if (pfnBeginThread) {
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/* Save the function which we will have to call to clear the RTL of calling app! */
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thread->endfunc = pfnEndThread;
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/* Start the thread using the runtime library of calling app! */
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thread->handle = (SYS_ThreadHandle)
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pfnBeginThread(RunThread, NULL, thread->stacksize, thread);
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} else {
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thread->endfunc = _endthread;
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thread->handle = (SYS_ThreadHandle)
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_beginthread(RunThread, NULL, thread->stacksize, thread);
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}
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if (thread->handle == -1)
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return SDL_SetError("Not enough resources to create thread");
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return 0;
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}
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void
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SDL_SYS_SetupThread(const char *name)
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{
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/* nothing. */
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}
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SDL_threadID
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SDL_ThreadID(void)
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{
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PTIB tib;
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PPIB pib;
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DosGetInfoBlocks(&tib, &pib);
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return tib->tib_ptib2->tib2_ultid;
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}
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int
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SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
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{
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ULONG ulRC;
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ulRC = DosSetPriority(PRTYS_THREAD,
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(priority < SDL_THREAD_PRIORITY_NORMAL)? PRTYC_IDLETIME :
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(priority > SDL_THREAD_PRIORITY_NORMAL)? PRTYC_TIMECRITICAL :
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PRTYC_REGULAR,
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0, 0);
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if (ulRC != NO_ERROR)
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return SDL_SetError("DosSetPriority() failed, rc = %u", ulRC);
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return 0;
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}
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void
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SDL_SYS_WaitThread(SDL_Thread * thread)
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{
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ULONG ulRC = DosWaitThread((PTID)&thread->handle, DCWW_WAIT);
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if (ulRC != NO_ERROR) {
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debug_os2("DosWaitThread() failed, rc = %u", ulRC);
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}
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}
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void
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SDL_SYS_DetachThread(SDL_Thread * thread)
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{
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/* nothing. */
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}
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#endif /* SDL_THREAD_OS2 */
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/* vi: set ts=4 sw=4 expandtab: */
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