121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
/**
|
|
* Copyright (c) 2016 Tino Reichardt
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under both the BSD-style license (found in the
|
|
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
|
|
* in the COPYING file in the root directory of this source tree).
|
|
*
|
|
* You can contact the author at:
|
|
* - zstdmt source repository: https://github.com/mcmilk/zstdmt
|
|
*/
|
|
|
|
/**
|
|
* This file will hold wrapper for systems, which do not support pthreads
|
|
*/
|
|
|
|
#include "threading.h"
|
|
|
|
/* create fake symbol to avoid empty translation unit warning */
|
|
int g_ZSTD_threading_useless_symbol;
|
|
|
|
#if defined(ZSTD_MULTITHREAD) && defined(_WIN32)
|
|
|
|
/**
|
|
* Windows minimalist Pthread Wrapper, based on :
|
|
* http://www.cse.wustl.edu/~schmidt/win32-cv-1.html
|
|
*/
|
|
|
|
|
|
/* === Dependencies === */
|
|
#include <process.h>
|
|
#include <errno.h>
|
|
|
|
|
|
/* === Implementation === */
|
|
|
|
static unsigned __stdcall worker(void *arg)
|
|
{
|
|
ZSTD_pthread_t* const thread = (ZSTD_pthread_t*) arg;
|
|
thread->arg = thread->start_routine(thread->arg);
|
|
return 0;
|
|
}
|
|
|
|
int ZSTD_pthread_create(ZSTD_pthread_t* thread, const void* unused,
|
|
void* (*start_routine) (void*), void* arg)
|
|
{
|
|
(void)unused;
|
|
thread->arg = arg;
|
|
thread->start_routine = start_routine;
|
|
thread->handle = (HANDLE) _beginthreadex(NULL, 0, worker, thread, 0, NULL);
|
|
|
|
if (!thread->handle)
|
|
return errno;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
int ZSTD_pthread_join(ZSTD_pthread_t thread, void **value_ptr)
|
|
{
|
|
DWORD result;
|
|
|
|
if (!thread.handle) return 0;
|
|
|
|
result = WaitForSingleObject(thread.handle, INFINITE);
|
|
switch (result) {
|
|
case WAIT_OBJECT_0:
|
|
if (value_ptr) *value_ptr = thread.arg;
|
|
return 0;
|
|
case WAIT_ABANDONED:
|
|
return EINVAL;
|
|
default:
|
|
return GetLastError();
|
|
}
|
|
}
|
|
|
|
#endif /* ZSTD_MULTITHREAD */
|
|
|
|
#if defined(ZSTD_MULTITHREAD) && DEBUGLEVEL >= 1 && !defined(_WIN32)
|
|
|
|
#include <stdlib.h>
|
|
|
|
int ZSTD_pthread_mutex_init(ZSTD_pthread_mutex_t* mutex, pthread_mutexattr_t const* attr)
|
|
{
|
|
*mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
|
|
if (!*mutex)
|
|
return 1;
|
|
return pthread_mutex_init(*mutex, attr);
|
|
}
|
|
|
|
int ZSTD_pthread_mutex_destroy(ZSTD_pthread_mutex_t* mutex)
|
|
{
|
|
if (!*mutex)
|
|
return 0;
|
|
{
|
|
int const ret = pthread_mutex_destroy(*mutex);
|
|
free(*mutex);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
int ZSTD_pthread_cond_init(ZSTD_pthread_cond_t* cond, pthread_condattr_t const* attr)
|
|
{
|
|
*cond = (pthread_cond_t*)malloc(sizeof(pthread_cond_t));
|
|
if (!*cond)
|
|
return 1;
|
|
return pthread_cond_init(*cond, attr);
|
|
}
|
|
|
|
int ZSTD_pthread_cond_destroy(ZSTD_pthread_cond_t* cond)
|
|
{
|
|
if (!*cond)
|
|
return 0;
|
|
{
|
|
int const ret = pthread_cond_destroy(*cond);
|
|
free(*cond);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
#endif
|