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os2: add port files for SDL2-2.0.4 from Andrey Vasilkin
only geniconv/iconv.h (was from LGPL libiconv) is replaced with a generic minimal iconv.h based on public knowledge.
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Ozkan Sezer
187
src/thread/os2/SDL_systhread.c
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187
src/thread/os2/SDL_systhread.c
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2016 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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#define INCL_DOSPROCESS
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#define INCL_DOSERRORS
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#include <os2.h>
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#ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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/* We'll use the C library from this DLL */
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#include <process.h>
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/* Cygwin gcc-3 ... MingW64 (even with a i386 host) does this like MSVC. */
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#if (defined(__MINGW32__) && (__GNUC__ < 4))
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typedef unsigned long (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned,
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unsigned (__stdcall *func)(void *), void *arg,
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unsigned, unsigned *threadID);
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typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code);
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#elif defined(__WATCOMC__)
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/* This is for Watcom targets except OS2 */
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#if __WATCOMC__ < 1240
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#define __watcall
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#endif
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typedef unsigned long (__watcall * pfnSDL_CurrentBeginThread) (void *,
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unsigned,
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unsigned
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(__stdcall *
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func) (void
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*),
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void *arg,
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unsigned,
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unsigned
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*threadID);
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typedef void (__watcall * pfnSDL_CurrentEndThread) (unsigned code);
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#else
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typedef uintptr_t(__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
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unsigned (__stdcall *
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func) (void
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*),
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void *arg, unsigned,
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unsigned *threadID);
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typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code);
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#endif
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#endif /* !SDL_PASSED_BEGINTHREAD_ENDTHREAD */
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typedef struct ThreadStartParms {
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void *args;
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pfnSDL_CurrentEndThread pfnCurrentEndThread;
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} tThreadStartParms, *pThreadStartParms;
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static void RunThread(void *data)
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{
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pThreadStartParms pThreadParms = (pThreadStartParms) data;
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pfnSDL_CurrentEndThread pfnEndThread = pThreadParms->pfnCurrentEndThread;
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void *args = pThreadParms->args;
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SDL_free( pThreadParms );
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if ( ppSDLTLSData != NULL )
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*ppSDLTLSData = NULL;
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SDL_RunThread( args );
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if ( pfnEndThread != NULL )
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pfnEndThread();
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}
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#ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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int
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SDL_SYS_CreateThread(SDL_Thread * thread, void *args,
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pfnSDL_CurrentBeginThread pfnBeginThread,
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pfnSDL_CurrentEndThread pfnEndThread)
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#else
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int
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SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
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#endif /* SDL_PASSED_BEGINTHREAD_ENDTHREAD */
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{
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pThreadStartParms pThreadParms = SDL_malloc( sizeof(tThreadStartParms) );
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if ( pThreadParms == NULL )
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return SDL_OutOfMemory();
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// Save the function which we will have to call to clear the RTL of calling app!
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pThreadParms->pfnCurrentEndThread = pfnEndThread;
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// Also save the real parameters we have to pass to thread function
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pThreadParms->args = args;
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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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#ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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( (size_t) pfnBeginThread( RunThread, NULL, 65535, pThreadParms ) );
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#else
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_beginthread( RunThread, NULL, 65535, pThreadParms );
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#endif
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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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return;
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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_LOW
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? PRTYC_IDLETIME
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: priority == SDL_THREAD_PRIORITY_HIGH
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? 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( "DosWaitThread() failed, rc = %u", ulRC );
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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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return;
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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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