SDL_systhread.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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/* BeOS thread management routines for SDL */
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#include "SDL_mutex.h"
#include "SDL_thread.h"
#include "SDL_thread_c.h"
#include "SDL_systhread.h"
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#include "mydebug.h"
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typedef struct {
int (*func)(void *);
void *data;
SDL_Thread *info;
struct Task *wait;
} thread_args;
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#ifndef MORPHOS
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#if defined(__SASC) && !defined(__PPC__)
__saveds __asm Uint32 RunThread(register __a0 char *args )
#elif defined(__PPC__)
Uint32 RunThread(char *args)
#else
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Uint32 __saveds RunThread(char *args __asm("a0") )
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#endif
{
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#ifdef STORMC4_WOS
thread_args *data=(thread_args *)args;
#else
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thread_args *data=(thread_args *)atol(args);
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#endif
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struct Task *Father;
D(bug("Received data: %lx\n",data));
Father=data->wait;
SDL_RunThread(data);
Signal(Father,SIGBREAKF_CTRL_F);
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D(bug("Thread with data %lx ended\n",data));
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return(0);
}
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#else
#include <emul/emulinterface.h>
Uint32 RunTheThread(void)
{
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thread_args *data=(thread_args *)atol((char *)REG_A0);
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struct Task *Father;
D(bug("Received data: %lx\n",data));
Father=data->wait;
SDL_RunThread(data);
Signal(Father,SIGBREAKF_CTRL_F);
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D(bug("Thread with data %lx ended\n",data));
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return(0);
}
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struct EmulLibEntry RunThreadStruct=
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{
TRAP_LIB,
0,
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(ULONG)RunTheThread
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void *RunThread=&RunThreadStruct;
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int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
{
/* Create the thread and go! */
char buffer[20];
D(bug("Sending %lx to the new thread...\n",args));
if(args)
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SDL_snprintf(buffer, SDL_arraysize(buffer),"%ld",args);
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#ifdef STORMC4_WOS
thread->handle=CreateTaskPPCTags(TASKATTR_CODE, RunThread,
TASKATTR_NAME, "SDL subtask",
TASKATTR_STACKSIZE, 100000,
(args ? TASKATTR_R3 : TAG_IGNORE), args,
TASKATTR_INHERITR2, TRUE,
TAG_DONE);
#else
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thread->handle=(struct Task *)CreateNewProcTags(NP_Output,Output(),
NP_Name,(ULONG)"SDL subtask",
NP_CloseOutput, FALSE,
NP_StackSize,20000,
NP_Entry,(ULONG)RunThread,
args ? NP_Arguments : TAG_IGNORE,(ULONG)buffer,
TAG_DONE);
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#endif
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if(!thread->handle)
{
SDL_SetError("Not enough resources to create thread");
return(-1);
}
return(0);
}
void SDL_SYS_SetupThread(void)
{
}
Uint32 SDL_ThreadID(void)
{
return((Uint32)FindTask(NULL));
}
void SDL_SYS_WaitThread(SDL_Thread *thread)
{
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SetSignal(0L,SIGBREAKF_CTRL_F|SIGBREAKF_CTRL_C);
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Wait(SIGBREAKF_CTRL_F|SIGBREAKF_CTRL_C);
}
void SDL_SYS_KillThread(SDL_Thread *thread)
{
Signal((struct Task *)thread->handle,SIGBREAKF_CTRL_C);
}