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/**
* OpenAL cross platform audio library
* Copyright (C) 1999-2007 by authors.
* 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 Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
* Or go to http://www.gnu.org/copyleft/lgpl.html
*/
#include "config.h"
#include "threads.h"
#include <stdlib.h>
#include "alMain.h"
#include "alThunk.h"
#define THREAD_STACK_SIZE (1*1024*1024) /* 1MB */
#ifdef _WIN32
typedef struct althread_info {
ALuint (*func)(ALvoid*);
ALvoid *ptr;
HANDLE hdl;
} althread_info;
static DWORD CALLBACK StarterFunc(void *ptr)
{
althread_info *inf = (althread_info*)ptr;
ALuint ret;
ret = inf->func(inf->ptr);
ExitThread((DWORD)ret);
return (DWORD)ret;
}
ALboolean StartThread(althread_t *thread, ALuint (*func)(ALvoid*), ALvoid *ptr)
{
althread_info *info;
DWORD dummy;
info = malloc(sizeof(*info));
if(!info) return AL_FALSE;
info->func = func;
info->ptr = ptr;
info->hdl = CreateThread(NULL, THREAD_STACK_SIZE, StarterFunc, info, 0, &dummy);
if(!info->hdl)
{
free(info);
return AL_FALSE;
}
*thread = info;
return AL_TRUE;
}
ALuint StopThread(althread_t thread)
{
DWORD ret = 0;
WaitForSingleObject(thread->hdl, INFINITE);
GetExitCodeThread(thread->hdl, &ret);
CloseHandle(thread->hdl);
free(thread);
return (ALuint)ret;
}
void SetThreadName(const char *name)
{
#if defined(_MSC_VER)
#define MS_VC_EXCEPTION 0x406D1388
struct {
DWORD dwType; // Must be 0x1000.
LPCSTR szName; // Pointer to name (in user addr space).
DWORD dwThreadID; // Thread ID (-1=caller thread).
DWORD dwFlags; // Reserved for future use, must be zero.
} info;
info.dwType = 0x1000;
info.szName = name;
info.dwThreadID = -1;
info.dwFlags = 0;
__try {
RaiseException(MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(DWORD), (DWORD*)&info);
}
__except(EXCEPTION_CONTINUE_EXECUTION) {
}
#undef MS_VC_EXCEPTION
#else
TRACE("Can't set thread %04lx name to \"%s\"\n", GetCurrentThreadId(), name);
#endif
}
#else
#include <pthread.h>
typedef struct althread_info {
ALuint (*func)(ALvoid*);
ALvoid *ptr;
ALuint ret;
pthread_t hdl;
} althread_info;
static void *StarterFunc(void *ptr)
{
althread_info *inf = (althread_info*)ptr;
inf->ret = inf->func(inf->ptr);
return NULL;
}
ALboolean StartThread(althread_t *thread, ALuint (*func)(ALvoid*), ALvoid *ptr)
{
pthread_attr_t attr;
althread_info *info;
info = malloc(sizeof(*info));
if(!info) return AL_FALSE;
if(pthread_attr_init(&attr) != 0)
{
free(info);
return AL_FALSE;
}
if(pthread_attr_setstacksize(&attr, THREAD_STACK_SIZE) != 0)
{
pthread_attr_destroy(&attr);
free(info);
return AL_FALSE;
}
info->func = func;
info->ptr = ptr;
if(pthread_create(&info->hdl, &attr, StarterFunc, info) != 0)
{
pthread_attr_destroy(&attr);
free(info);
return AL_FALSE;
}
pthread_attr_destroy(&attr);
*thread = info;
return AL_TRUE;
}
ALuint StopThread(althread_t thread)
{
ALuint ret;
pthread_join(thread->hdl, NULL);
ret = thread->ret;
free(thread);
return ret;
}
void SetThreadName(const char *name)
{
#if defined(HAVE_PTHREAD_SETNAME_NP)
#if defined(__GNUC__)
if(pthread_setname_np(pthread_self(), name) != 0)
#elif defined(__APPLE__)
if(pthread_setname_np(name) != 0)
#endif
WARN("Failed to set thread name to \"%s\": %s\n", name, strerror(errno));
#elif defined(HAVE_PTHREAD_SET_NAME_NP)
pthread_set_name_np(pthread_self(), name);
#else
TRACE("Can't set thread name to \"%s\"\n", name);
#endif
}
#endif
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