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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkMultiThreaderTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include "itkConfigure.h"
#include "itkMultiThreader.h"
#include <stdlib.h>
bool VerifyRange(int value, int min, int max, const char * msg)
{
if( value < min )
{
std::cerr << msg << std::endl;
return false;
}
if( value > max )
{
std::cerr << msg << std::endl;
return false;
}
return true;
}
bool SetAndVerifyGlobalMaximumNumberOfThreads( int value )
{
itk::MultiThreader::SetGlobalMaximumNumberOfThreads( value );
return VerifyRange( itk::MultiThreader::GetGlobalMaximumNumberOfThreads(),
1, ITK_MAX_THREADS, "Range error in MaximumNumberOfThreads");
}
bool SetAndVerifyGlobalDefaultNumberOfThreads( int value )
{
itk::MultiThreader::SetGlobalDefaultNumberOfThreads( value );
return VerifyRange( itk::MultiThreader::GetGlobalDefaultNumberOfThreads(),
1, itk::MultiThreader::GetGlobalMaximumNumberOfThreads(),
"Range error in DefaultNumberOfThreads");
}
bool SetAndVerifyNumberOfThreads( int value, itk::MultiThreader * threader )
{
threader->SetNumberOfThreads( value );
return VerifyRange( threader->GetNumberOfThreads(),
1, itk::MultiThreader::GetGlobalMaximumNumberOfThreads(),
"Range error in NumberOfThreads");
}
int itkMultiThreaderTest(int argc, char* argv[])
{
// Choose a number of threads.
int numberOfThreads = 10;
if( argc > 1 )
{
const int nt = atoi( argv[1] );
if(nt > 1)
{
numberOfThreads = nt;
}
}
itk::MultiThreader::Pointer threader = itk::MultiThreader::New();
itk::MultiThreader::SetGlobalDefaultNumberOfThreads( numberOfThreads );
{
// Test settings for GlobalMaximumNumberOfThreads
bool result = true;
result &= SetAndVerifyGlobalMaximumNumberOfThreads( -1 );
result &= SetAndVerifyGlobalMaximumNumberOfThreads( 0 );
result &= SetAndVerifyGlobalMaximumNumberOfThreads( 1 );
result &= SetAndVerifyGlobalMaximumNumberOfThreads( 2 );
result &= SetAndVerifyGlobalMaximumNumberOfThreads( ITK_MAX_THREADS );
result &= SetAndVerifyGlobalMaximumNumberOfThreads( ITK_MAX_THREADS - 1 );
result &= SetAndVerifyGlobalMaximumNumberOfThreads( ITK_MAX_THREADS + 1 );
if( !result )
{
return EXIT_FAILURE;
}
result &= SetAndVerifyGlobalDefaultNumberOfThreads( -1 );
result &= SetAndVerifyGlobalDefaultNumberOfThreads( 0 );
result &= SetAndVerifyGlobalDefaultNumberOfThreads( 1 );
result &= SetAndVerifyGlobalDefaultNumberOfThreads( itk::MultiThreader::GetGlobalMaximumNumberOfThreads() );
result &= SetAndVerifyGlobalDefaultNumberOfThreads( itk::MultiThreader::GetGlobalMaximumNumberOfThreads() - 1 );
result &= SetAndVerifyGlobalDefaultNumberOfThreads( itk::MultiThreader::GetGlobalMaximumNumberOfThreads() + 1 );
if( !result )
{
return EXIT_FAILURE;
}
itk::MultiThreader::Pointer threader2 = itk::MultiThreader::New();
result &= SetAndVerifyNumberOfThreads( -1, threader2 );
result &= SetAndVerifyNumberOfThreads( 0, threader2 );
result &= SetAndVerifyNumberOfThreads( 1, threader2 );
result &= SetAndVerifyNumberOfThreads( itk::MultiThreader::GetGlobalMaximumNumberOfThreads(), threader2 );
result &= SetAndVerifyNumberOfThreads( itk::MultiThreader::GetGlobalMaximumNumberOfThreads() - 1, threader2);
result &= SetAndVerifyNumberOfThreads( itk::MultiThreader::GetGlobalMaximumNumberOfThreads() + 1, threader2);
if( !result )
{
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
namespace itkMultiThreaderTestHelpers
{
void ThreadedMethod()
{
#ifdef ITK_USE_PTHREADS
// ThreadProcessIDType threadId = pthread_self();
#endif
#ifdef ITK_USE_WIN32_THREADS
// ThreadProcessIDType threadId = GetCurrentThread();
#endif
#ifdef ITK_USE_SPROC
// const ThreadProcessIDType threadId = GetCurrentThread() ??;
#endif
}
} // end of itkMultiThreaderTestHelpers
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