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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Felix Arends
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#define WINDOWS_LEAN_AND_MEAN
#include <windows.h>
#include <time.h>
#include "thread-win32.h"
#include "kernel.h"
#include "debug.h"
HANDLE lpThreads[256];
int nThreads = 0,
nPos = 0;
long current_tick = 0;
CRITICAL_SECTION CriticalSection;
void yield(void)
{
static clock_t last = 0;
clock_t now;
LeaveCriticalSection(&CriticalSection);
/* Don't call Sleep() too often (as the smallest sleep really is a bit
* longer). This keeps CPU usage low, yet allows sound playback to work
* well (at least on one particular computer).
*/
now = clock();
if (now - last > CLOCKS_PER_SEC / 200)
{
last = now;
Sleep(1);
}
EnterCriticalSection(&CriticalSection);
}
void sim_sleep(int ticks)
{
LeaveCriticalSection(&CriticalSection);
Sleep((1000/HZ) * ticks);
EnterCriticalSection(&CriticalSection);
}
DWORD WINAPI runthread (LPVOID lpParameter)
{
EnterCriticalSection(&CriticalSection);
((void(*)())lpParameter) ();
LeaveCriticalSection(&CriticalSection);
return 0;
}
int create_thread(void (*fp)(void), void* sp, int stk_size)
{
DWORD dwThreadID;
(void)sp;
(void)stk_size;
if (nThreads == 256)
return -1;
lpThreads[nThreads++] = CreateThread (NULL,
0,
runthread,
fp,
0,
&dwThreadID);
return 0;
}
void init_threads(void)
{
InitializeCriticalSection(&CriticalSection);
EnterCriticalSection(&CriticalSection);
}
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