mirror of https://github.com/PCSX2/pcsx2.git
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/*
|
|
* spin4.c
|
|
*
|
|
*
|
|
* --------------------------------------------------------------------------
|
|
*
|
|
* Pthreads-win32 - POSIX Threads Library for Win32
|
|
* Copyright(C) 1998 John E. Bossom
|
|
* Copyright(C) 1999,2005 Pthreads-win32 contributors
|
|
*
|
|
* Contact Email: rpj@callisto.canberra.edu.au
|
|
*
|
|
* The current list of contributors is contained
|
|
* in the file CONTRIBUTORS included with the source
|
|
* code distribution. The list can also be seen at the
|
|
* following World Wide Web location:
|
|
* http://sources.redhat.com/pthreads-win32/contributors.html
|
|
*
|
|
* 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 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 in the file COPYING.LIB;
|
|
* if not, write to the Free Software Foundation, Inc.,
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*
|
|
* --------------------------------------------------------------------------
|
|
*
|
|
* Declare a static spinlock object, lock it, spin on it,
|
|
* and then unlock it again.
|
|
*/
|
|
|
|
#include "test.h"
|
|
#include <sys/timeb.h>
|
|
|
|
pthread_spinlock_t lock = PTHREAD_SPINLOCK_INITIALIZER;
|
|
PTW32_STRUCT_TIMEB currSysTimeStart;
|
|
PTW32_STRUCT_TIMEB currSysTimeStop;
|
|
|
|
#define GetDurationMilliSecs(_TStart, _TStop) ((_TStop.time*1000+_TStop.millitm) \
|
|
- (_TStart.time*1000+_TStart.millitm))
|
|
|
|
static int washere = 0;
|
|
|
|
void * func(void * arg)
|
|
{
|
|
PTW32_FTIME(&currSysTimeStart);
|
|
washere = 1;
|
|
assert(pthread_spin_lock(&lock) == 0);
|
|
assert(pthread_spin_unlock(&lock) == 0);
|
|
PTW32_FTIME(&currSysTimeStop);
|
|
|
|
return (void *)(size_t)GetDurationMilliSecs(currSysTimeStart, currSysTimeStop);
|
|
}
|
|
|
|
int
|
|
main()
|
|
{
|
|
void* result = (void*)0;
|
|
pthread_t t;
|
|
int CPUs;
|
|
PTW32_STRUCT_TIMEB sysTime;
|
|
|
|
if ((CPUs = pthread_num_processors_np()) == 1)
|
|
{
|
|
printf("Test not run - it requires multiple CPUs.\n");
|
|
exit(0);
|
|
}
|
|
|
|
assert(pthread_spin_lock(&lock) == 0);
|
|
|
|
assert(pthread_create(&t, NULL, func, NULL) == 0);
|
|
|
|
while (washere == 0)
|
|
{
|
|
sched_yield();
|
|
}
|
|
|
|
do
|
|
{
|
|
sched_yield();
|
|
PTW32_FTIME(&sysTime);
|
|
}
|
|
while (GetDurationMilliSecs(currSysTimeStart, sysTime) <= 1000);
|
|
|
|
assert(pthread_spin_unlock(&lock) == 0);
|
|
|
|
assert(pthread_join(t, &result) == 0);
|
|
assert((int)(size_t)result > 1000);
|
|
|
|
assert(pthread_spin_destroy(&lock) == 0);
|
|
|
|
assert(washere == 1);
|
|
|
|
return 0;
|
|
}
|