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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkMultiThreader.h"
#include "itkTimeProbe.h"
#include "itkConfigure.h"
itk::MutexLock::Pointer sharedMutex;
void* execute(void *ptr)
{
// Here - get any args from ptr.
itk::MultiThreader::ThreadInfoStruct* threadInfo =
static_cast<itk::MultiThreader::ThreadInfoStruct*>(ptr);
int *data = static_cast<int *>(threadInfo->UserData);
sharedMutex->Lock();
std::cout << "Ptr received :" << ptr
<< ", Value " << *data << std::endl;
sharedMutex->Unlock();
int n = 10;
int m = 100;
double sum = 1.0;
for( int j = 0; j < m; j++ )
{
sum = 1.0;
for( int i = 1; i <= n; i++ )
{
sum = sum + i + j;
}
}
return ITK_NULLPTR;
}
#if !defined(ITK_USE_PTHREADS)
int itkThreadPoolTest(int, char* [])
{
#else
int itkThreadPoolTest(int argc, char* argv[])
{
sharedMutex = itk::MutexLock::New();
int count = 1000000;
if( argc > 1 )
{
const int nt = atoi( argv[1] );
if(nt > 1)
{
count = nt;
}
}
itk::MultiThreader::Pointer threader = itk::MultiThreader::New();
if(threader.IsNull())
{
return EXIT_FAILURE;
}
itk::TimeProbe timeProbe;
itk::TimeProbe::TimeStampType startTime = timeProbe.GetInstantValue();
int data = 100;
for(int i=0; i<count;i++)
{
threader->SetSingleMethod(&execute,(void *)&data);
threader->SingleMethodExecute();
}
itk::TimeProbe::TimeStampType elapsed = timeProbe.GetInstantValue() - startTime;
std::cout<<std::endl <<" Thread pool test : Time elapsed : " << elapsed << std::endl;
#endif
return EXIT_SUCCESS;
}
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