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SDL_systhread.c
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@devolution.com
*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
/* AmigaOS thread management routines for SDL */
#include "SDL_error.h"
#include "SDL_mutex.h"
#include "SDL_thread.h"
#include "SDL_thread_c.h"
#include "SDL_systhread.h"
typedef struct {
int (*func)(void *);
void *data;
SDL_Thread *info;
struct Task *wait;
} thread_args;
#if defined(__SASC) && !defined(__PPC__)
__saveds __asm Uint32 RunThread(register __a0 char *args )
#elif defined(__PPC__)
Uint32 RunThread(char *args)
#else
Uint32 RunThread(char *args __asm("a0") )
#endif
{
thread_args *data=(thread_args *)atol(args);
struct Task *Father;
D(bug("Received data: %lx\n",data));
Father=data->wait;
SDL_RunThread(data);
Signal(Father,SIGBREAKF_CTRL_F);
return(0);
}
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)
sprintf(buffer,"%ld",args);
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);
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)
{
Wait(SIGBREAKF_CTRL_F|SIGBREAKF_CTRL_C);
}
void SDL_SYS_KillThread(SDL_Thread *thread)
{
Signal((struct Task *)thread->handle,SIGBREAKF_CTRL_C);
}