Files
easy7zip/C/zstdmt/zstd-mt_threading.c
2017-10-31 10:53:17 +01:00

74 lines
1.5 KiB
C

/**
* Copyright (c) 2016 Tino Reichardt
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* 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
*/
#ifdef _WIN32
/**
* Windows Pthread Wrapper, based on this site:
* http://www.cse.wustl.edu/~schmidt/win32-cv-1.html
*/
#include "threading.h"
#include <process.h>
#include <errno.h>
static unsigned __stdcall worker(void *arg)
{
pthread_t *thread = (pthread_t *) arg;
thread->arg = thread->start_routine(thread->arg);
return 0;
}
int
pthread_create(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 _pthread_join(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