Removed broken AmigaOS support.
Fixes Bugzilla #337. --HG-- branch : SDL-1.2 extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402213
This commit is contained in:
Ryan C. Gordon
parent
ca282f044b
commit
79b94d85d1
34 changed files with 10 additions and 5910 deletions
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@ -27,8 +27,6 @@
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/* Need the definitions of SYS_ThreadHandle */
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#if SDL_THREADS_DISABLED
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#include "generic/SDL_systhread_c.h"
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#elif SDL_THREAD_AMIGA
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#include "amigaos/SDL_systhread_c.h"
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#elif SDL_THREAD_BEOS
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#include "beos/SDL_systhread_c.h"
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#elif SDL_THREAD_DC
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@ -1,148 +0,0 @@
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/*
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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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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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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|
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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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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#include "SDL_config.h"
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/* An implementation of semaphores using mutexes and condition variables */
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#include "SDL_thread.h"
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#include "SDL_systhread_c.h"
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struct SDL_semaphore
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{
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struct SignalSemaphore Sem;
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};
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#undef D
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#define D(x)
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SDL_sem *SDL_CreateSemaphore(Uint32 initial_value)
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{
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SDL_sem *sem;
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sem = (SDL_sem *)SDL_malloc(sizeof(*sem));
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if ( ! sem ) {
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SDL_OutOfMemory();
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return(0);
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}
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D(bug("Creating semaphore %lx...\n",sem));
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SDL_memset(sem,0,sizeof(*sem));
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InitSemaphore(&sem->Sem);
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return(sem);
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}
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void SDL_DestroySemaphore(SDL_sem *sem)
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{
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D(bug("Destroying semaphore %lx...\n",sem));
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if ( sem ) {
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// Condizioni per liberare i task in attesa?
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SDL_free(sem);
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}
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}
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int SDL_SemTryWait(SDL_sem *sem)
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{
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if ( ! sem ) {
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SDL_SetError("Passed a NULL semaphore");
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return -1;
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}
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D(bug("TryWait semaphore...%lx\n",sem));
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ObtainSemaphore(&sem->Sem);
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// ReleaseSemaphore(&sem->Sem);
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return 1;
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}
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int SDL_SemWaitTimeout(SDL_sem *sem, Uint32 timeout)
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{
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int retval;
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if ( ! sem ) {
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SDL_SetError("Passed a NULL semaphore");
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return -1;
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}
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D(bug("WaitTimeout (%ld) semaphore...%lx\n",timeout,sem));
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/* A timeout of 0 is an easy case */
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if ( timeout == 0 ) {
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ObtainSemaphore(&sem->Sem);
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return 1;
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}
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if(!(retval=AttemptSemaphore(&sem->Sem)))
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{
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SDL_Delay(timeout);
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retval=AttemptSemaphore(&sem->Sem);
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}
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if(retval==TRUE)
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{
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// ReleaseSemaphore(&sem->Sem);
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retval=1;
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}
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return retval;
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}
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int SDL_SemWait(SDL_sem *sem)
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{
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ObtainSemaphore(&sem->Sem);
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return 0;
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}
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Uint32 SDL_SemValue(SDL_sem *sem)
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{
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Uint32 value;
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value = 0;
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if ( sem ) {
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#ifdef STORMC4_WOS
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value = sem->Sem.ssppc_SS.ss_NestCount;
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#else
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value = sem->Sem.ss_NestCount;
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#endif
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}
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return value;
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}
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int SDL_SemPost(SDL_sem *sem)
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{
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if ( ! sem ) {
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SDL_SetError("Passed a NULL semaphore");
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return -1;
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}
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D(bug("SemPost semaphore...%lx\n",sem));
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ReleaseSemaphore(&sem->Sem);
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return 0;
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}
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@ -1,151 +0,0 @@
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/*
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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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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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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|
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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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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#include "SDL_config.h"
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/* BeOS thread management routines for SDL */
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#include "SDL_mutex.h"
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#include "SDL_thread.h"
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#include "../SDL_thread_c.h"
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#include "../SDL_systhread.h"
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#include "mydebug.h"
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typedef struct {
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int (*func)(void *);
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void *data;
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SDL_Thread *info;
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struct Task *wait;
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} thread_args;
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#ifndef MORPHOS
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#if defined(__SASC) && !defined(__PPC__)
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__saveds __asm Uint32 RunThread(register __a0 char *args )
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#elif defined(__PPC__)
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Uint32 RunThread(char *args)
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#else
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Uint32 __saveds RunThread(char *args __asm("a0") )
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#endif
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{
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#ifdef STORMC4_WOS
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thread_args *data=(thread_args *)args;
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#else
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thread_args *data=(thread_args *)atol(args);
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#endif
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struct Task *Father;
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D(bug("Received data: %lx\n",data));
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Father=data->wait;
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SDL_RunThread(data);
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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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}
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#else
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#include <emul/emulinterface.h>
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Uint32 RunTheThread(void)
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{
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thread_args *data=(thread_args *)atol((char *)REG_A0);
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struct Task *Father;
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D(bug("Received data: %lx\n",data));
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Father=data->wait;
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SDL_RunThread(data);
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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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}
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struct EmulLibEntry RunThreadStruct=
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{
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TRAP_LIB,
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0,
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(ULONG)RunTheThread
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};
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void *RunThread=&RunThreadStruct;
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#endif
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int SDL_SYS_CreateThread(SDL_Thread *thread, void *args)
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{
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/* Create the thread and go! */
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char buffer[20];
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D(bug("Sending %lx to the new thread...\n",args));
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if(args)
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SDL_snprintf(buffer, SDL_arraysize(buffer),"%ld",args);
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#ifdef STORMC4_WOS
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thread->handle=CreateTaskPPCTags(TASKATTR_CODE, RunThread,
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TASKATTR_NAME, "SDL subtask",
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TASKATTR_STACKSIZE, 100000,
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(args ? TASKATTR_R3 : TAG_IGNORE), args,
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TASKATTR_INHERITR2, TRUE,
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TAG_DONE);
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#else
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thread->handle=(struct Task *)CreateNewProcTags(NP_Output,Output(),
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NP_Name,(ULONG)"SDL subtask",
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NP_CloseOutput, FALSE,
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NP_StackSize,20000,
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NP_Entry,(ULONG)RunThread,
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args ? NP_Arguments : TAG_IGNORE,(ULONG)buffer,
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TAG_DONE);
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#endif
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if(!thread->handle)
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{
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SDL_SetError("Not enough resources to create thread");
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return(-1);
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}
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return(0);
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}
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void SDL_SYS_SetupThread(void)
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{
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}
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Uint32 SDL_ThreadID(void)
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{
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return((Uint32)FindTask(NULL));
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}
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void SDL_SYS_WaitThread(SDL_Thread *thread)
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{
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SetSignal(0L,SIGBREAKF_CTRL_F|SIGBREAKF_CTRL_C);
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Wait(SIGBREAKF_CTRL_F|SIGBREAKF_CTRL_C);
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}
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void SDL_SYS_KillThread(SDL_Thread *thread)
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{
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Signal((struct Task *)thread->handle,SIGBREAKF_CTRL_C);
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}
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@ -1,61 +0,0 @@
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/*
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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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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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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|
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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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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#include "SDL_config.h"
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#include <exec/exec.h>
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#include <dos/dos.h>
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#include <dos/dostags.h>
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#if defined (__SASC) || defined(STORMC4_WOS)
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#include <proto/dos.h>
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#include <proto/exec.h>
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#else
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#include <inline/dos.h>
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#include <inline/exec.h>
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#endif
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#include "mydebug.h"
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extern struct ExecBase *SysBase;
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extern struct DosLibrary *DOSBase;
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#ifdef STORMC4_WOS
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#include <proto/powerpc.h>
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/* use powerpc.library functions instead og exec */
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#define SYS_ThreadHandle struct TaskPPC *
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#define Signal SignalPPC
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#define Wait WaitPPC
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#define Task TaskPPC
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#define FindTask FindTaskPPC
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#define SetSignal SetSignalPPC
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#define InitSemaphore InitSemaphorePPC
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#define ObtainSemaphore ObtainSemaphorePPC
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#define AttemptSemaphore AttemptSemaphorePPC
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#define ReleaseSemaphore ReleaseSemaphorePPC
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#define SignalSemaphore SignalSemaphorePPC
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#else
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#define SYS_ThreadHandle struct Task *
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#endif /*STORMC4_WOS*/
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@ -1,278 +0,0 @@
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/*
|
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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
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 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
|
||||
Lesser General Public License for more details.
|
||||
|
||||
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
|
||||
|
||||
Sam Lantinga
|
||||
slouken@libsdl.org
|
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*/
|
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#include "SDL_config.h"
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|
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/* System independent thread management routines for SDL */
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|
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#include "SDL_mutex.h"
|
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#include "SDL_thread.h"
|
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#include "../SDL_thread_c.h"
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#include "../SDL_systhread.h"
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|
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#define ARRAY_CHUNKSIZE 32
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/* The array of threads currently active in the application
|
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(except the main thread)
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The manipulation of an array here is safer than using a linked list.
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*/
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static int SDL_maxthreads = 0;
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static int SDL_numthreads = 0;
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static SDL_Thread **SDL_Threads = NULL;
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static struct SignalSemaphore thread_lock;
|
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int thread_lock_created = 0;
|
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|
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int SDL_ThreadsInit(void)
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{
|
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InitSemaphore(&thread_lock);
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thread_lock_created=1;
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return 0;
|
||||
}
|
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|
||||
/* This should never be called...
|
||||
If this is called by SDL_Quit(), we don't know whether or not we should
|
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clean up threads here. If any threads are still running after this call,
|
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they will no longer have access to any per-thread data.
|
||||
*/
|
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void SDL_ThreadsQuit()
|
||||
{
|
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thread_lock_created=0;
|
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}
|
||||
|
||||
/* Routines for manipulating the thread list */
|
||||
static void SDL_AddThread(SDL_Thread *thread)
|
||||
{
|
||||
SDL_Thread **threads;
|
||||
|
||||
/* WARNING:
|
||||
If the very first threads are created simultaneously, then
|
||||
there could be a race condition causing memory corruption.
|
||||
In practice, this isn't a problem because by definition there
|
||||
is only one thread running the first time this is called.
|
||||
*/
|
||||
if ( !thread_lock_created ) {
|
||||
if ( SDL_ThreadsInit() < 0 ) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
ObtainSemaphore(&thread_lock);
|
||||
|
||||
/* Expand the list of threads, if necessary */
|
||||
#ifdef DEBUG_THREADS
|
||||
printf("Adding thread (%d already - %d max)\n",
|
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SDL_numthreads, SDL_maxthreads);
|
||||
#endif
|
||||
if ( SDL_numthreads == SDL_maxthreads ) {
|
||||
threads=(SDL_Thread **)SDL_malloc((SDL_maxthreads+ARRAY_CHUNKSIZE)*
|
||||
(sizeof *threads));
|
||||
if ( threads == NULL ) {
|
||||
SDL_OutOfMemory();
|
||||
goto done;
|
||||
}
|
||||
SDL_memcpy(threads, SDL_Threads, SDL_numthreads*(sizeof *threads));
|
||||
SDL_maxthreads += ARRAY_CHUNKSIZE;
|
||||
if ( SDL_Threads ) {
|
||||
SDL_free(SDL_Threads);
|
||||
}
|
||||
SDL_Threads = threads;
|
||||
}
|
||||
SDL_Threads[SDL_numthreads++] = thread;
|
||||
done:
|
||||
ReleaseSemaphore(&thread_lock);
|
||||
}
|
||||
|
||||
static void SDL_DelThread(SDL_Thread *thread)
|
||||
{
|
||||
int i;
|
||||
|
||||
if ( thread_lock_created ) {
|
||||
ObtainSemaphore(&thread_lock);
|
||||
for ( i=0; i<SDL_numthreads; ++i ) {
|
||||
if ( thread == SDL_Threads[i] ) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if ( i < SDL_numthreads ) {
|
||||
--SDL_numthreads;
|
||||
while ( i < SDL_numthreads ) {
|
||||
SDL_Threads[i] = SDL_Threads[i+1];
|
||||
++i;
|
||||
}
|
||||
#ifdef DEBUG_THREADS
|
||||
printf("Deleting thread (%d left - %d max)\n",
|
||||
SDL_numthreads, SDL_maxthreads);
|
||||
#endif
|
||||
}
|
||||
ReleaseSemaphore(&thread_lock);
|
||||
}
|
||||
}
|
||||
|
||||
/* The default (non-thread-safe) global error variable */
|
||||
static SDL_error SDL_global_error;
|
||||
|
||||
/* Routine to get the thread-specific error variable */
|
||||
SDL_error *SDL_GetErrBuf(void)
|
||||
{
|
||||
SDL_error *errbuf;
|
||||
|
||||
errbuf = &SDL_global_error;
|
||||
if ( SDL_Threads ) {
|
||||
int i;
|
||||
Uint32 this_thread;
|
||||
|
||||
this_thread = SDL_ThreadID();
|
||||
ObtainSemaphore(&thread_lock);
|
||||
for ( i=0; i<SDL_numthreads; ++i ) {
|
||||
if ( this_thread == SDL_Threads[i]->threadid ) {
|
||||
errbuf = &SDL_Threads[i]->errbuf;
|
||||
break;
|
||||
}
|
||||
}
|
||||
ReleaseSemaphore(&thread_lock);
|
||||
}
|
||||
return(errbuf);
|
||||
}
|
||||
|
||||
|
||||
/* Arguments and callback to setup and run the user thread function */
|
||||
typedef struct {
|
||||
int (*func)(void *);
|
||||
void *data;
|
||||
SDL_Thread *info;
|
||||
struct Task *wait;
|
||||
} thread_args;
|
||||
|
||||
void SDL_RunThread(void *data)
|
||||
{
|
||||
thread_args *args;
|
||||
int (*userfunc)(void *);
|
||||
void *userdata;
|
||||
int *statusloc;
|
||||
|
||||
/* Perform any system-dependent setup
|
||||
- this function cannot fail, and cannot use SDL_SetError()
|
||||
*/
|
||||
SDL_SYS_SetupThread();
|
||||
|
||||
/* Get the thread id */
|
||||
args = (thread_args *)data;
|
||||
args->info->threadid = SDL_ThreadID();
|
||||
|
||||
/* Figure out what function to run */
|
||||
userfunc = args->func;
|
||||
userdata = args->data;
|
||||
statusloc = &args->info->status;
|
||||
|
||||
/* Wake up the parent thread */
|
||||
Signal(args->wait,SIGBREAKF_CTRL_E);
|
||||
|
||||
/* Run the function */
|
||||
*statusloc = userfunc(userdata);
|
||||
}
|
||||
|
||||
SDL_Thread *SDL_CreateThread(int (*fn)(void *), void *data)
|
||||
{
|
||||
SDL_Thread *thread;
|
||||
thread_args *args;
|
||||
int ret;
|
||||
|
||||
/* Allocate memory for the thread info structure */
|
||||
thread = (SDL_Thread *)SDL_malloc(sizeof(*thread));
|
||||
if ( thread == NULL ) {
|
||||
SDL_OutOfMemory();
|
||||
return(NULL);
|
||||
}
|
||||
SDL_memset(thread, 0, (sizeof *thread));
|
||||
thread->status = -1;
|
||||
|
||||
/* Set up the arguments for the thread */
|
||||
args = (thread_args *)SDL_malloc(sizeof(*args));
|
||||
if ( args == NULL ) {
|
||||
SDL_OutOfMemory();
|
||||
SDL_free(thread);
|
||||
return(NULL);
|
||||
}
|
||||
args->func = fn;
|
||||
args->data = data;
|
||||
args->info = thread;
|
||||
args->wait = FindTask(NULL);
|
||||
if ( args->wait == NULL ) {
|
||||
SDL_free(thread);
|
||||
SDL_free(args);
|
||||
SDL_OutOfMemory();
|
||||
return(NULL);
|
||||
}
|
||||
|
||||
/* Add the thread to the list of available threads */
|
||||
SDL_AddThread(thread);
|
||||
|
||||
D(bug("Starting thread...\n"));
|
||||
|
||||
/* Create the thread and go! */
|
||||
ret = SDL_SYS_CreateThread(thread, args);
|
||||
if ( ret >= 0 ) {
|
||||
D(bug("Waiting for thread CTRL_E...\n"));
|
||||
/* Wait for the thread function to use arguments */
|
||||
Wait(SIGBREAKF_CTRL_E);
|
||||
D(bug(" Arrived."));
|
||||
} else {
|
||||
/* Oops, failed. Gotta free everything */
|
||||
SDL_DelThread(thread);
|
||||
SDL_free(thread);
|
||||
thread = NULL;
|
||||
}
|
||||
SDL_free(args);
|
||||
|
||||
/* Everything is running now */
|
||||
return(thread);
|
||||
}
|
||||
|
||||
void SDL_WaitThread(SDL_Thread *thread, int *status)
|
||||
{
|
||||
if ( thread ) {
|
||||
SDL_SYS_WaitThread(thread);
|
||||
if ( status ) {
|
||||
*status = thread->status;
|
||||
}
|
||||
SDL_DelThread(thread);
|
||||
SDL_free(thread);
|
||||
}
|
||||
}
|
||||
|
||||
Uint32 SDL_GetThreadID(SDL_Thread *thread)
|
||||
{
|
||||
Uint32 id;
|
||||
|
||||
if ( thread ) {
|
||||
id = thread->threadid;
|
||||
} else {
|
||||
id = SDL_ThreadID();
|
||||
}
|
||||
return(id);
|
||||
}
|
||||
|
||||
void SDL_KillThread(SDL_Thread *thread)
|
||||
{
|
||||
if ( thread ) {
|
||||
SDL_SYS_KillThread(thread);
|
||||
SDL_WaitThread(thread, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue