You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
1.7 KiB
88 lines
1.7 KiB
/*
|
|
* Copyright 2002-2019 Intel Corporation.
|
|
*
|
|
* This software is provided to you as Sample Source Code as defined in the accompanying
|
|
* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
|
|
* section 1.L.
|
|
*
|
|
* This software and the related documents are provided as is, with no express or implied
|
|
* warranties, other than those that are expressly stated in the License.
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <stdio.h>
|
|
#include "../Utils/threadlib.h"
|
|
|
|
|
|
#if defined(TARGET_WINDOWS)
|
|
#include <windows.h>
|
|
#define EXPORT_CSYM extern "C" __declspec( dllexport )
|
|
|
|
#else
|
|
#define EXPORT_CSYM extern "C"
|
|
|
|
#endif
|
|
|
|
int a[100000];
|
|
int n = 10;
|
|
long numthreads = 16;
|
|
EXPORT_CSYM unsigned int numthreadsStarted = 0;
|
|
|
|
extern "C" void AtomicIncrement();
|
|
|
|
EXPORT_CSYM void DoWork()
|
|
{
|
|
int i,j;
|
|
|
|
for (j = 0; j < 1000; j++)
|
|
{
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
a[i] = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
EXPORT_CSYM void WaitForAllThreadsStarted()
|
|
{
|
|
AtomicIncrement(); // atomically increments numthreadsStarted
|
|
while (numthreadsStarted != numthreads)
|
|
{
|
|
}
|
|
}
|
|
|
|
EXPORT_CSYM void * ThreadStart(void * arg)
|
|
{
|
|
int i;
|
|
// no thread starts the work loop until all threads are in the ThreadStart function
|
|
WaitForAllThreadsStarted();
|
|
for (i = 0; i< 100; i++)
|
|
{
|
|
DoWork();
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
|
|
THREAD_HANDLE threads[MAXTHREADS];
|
|
|
|
EXPORT_CSYM int main(int argc, char *argv[])
|
|
{
|
|
int i,j;
|
|
|
|
for (i = 0; i < numthreads; i++)
|
|
{
|
|
CreateOneThread(&threads[i], ThreadStart, 0);
|
|
}
|
|
|
|
for (i = 0; i < numthreads; i++)
|
|
{
|
|
BOOL success;
|
|
success = JoinOneThread (threads[i]);
|
|
}
|
|
|
|
return 0;
|
|
}
|