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/*=========================================================================
Program: OpenIGTLink Library
Language: C++
Copyright (c) Insight Software Consortium. All rights reserved.
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.
=========================================================================*/
#include "igtlConditionVariable.h"
#include "igtlMultiThreader.h"
#include "igtlOSUtil.h"
#include "igtlTestConfig.h"
#include "string.h"
void* TestThreadCounter(void* ptr);
void* TestThreadWaiting1(void* ptr);
void* TestThreadWaiting2(void* ptr);
typedef struct {
igtl::SimpleMutexLock* glock;
igtl::ConditionVariable::Pointer conditionVar;
bool isBroadCast;
int iFinalCount;
bool condition;
std::vector<bool> threads;
} ThreadData;
TEST(ConditionVariableTest, SingleChildThreadTest)
{
// From this test we can see that, the wait function really works,
// the main thread waits until the spawned thread is finished, otherwize the icount1 will be 0.
igtl::ConditionVariable::Pointer conditionVar = igtl::ConditionVariable::New();
igtl::SimpleMutexLock *localMutex = new igtl::SimpleMutexLock();
ThreadData td;
td.threads = std::vector<bool>(1);
td.conditionVar = conditionVar;
td.glock = localMutex;
td.isBroadCast = false;
td.iFinalCount = 0;
td.condition = false;
igtl::MultiThreader::Pointer threader = igtl::MultiThreader::New();
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadWaiting1, &td);
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadCounter, &td);
while (td.threads[0] == false)
{
igtl::Sleep(20);
}
std::cerr<<"The child thread is released";
EXPECT_EQ(td.iFinalCount, 10);
}
TEST(ConditionVariableTest, MultiChildThreadTest)
{
igtl::ConditionVariable::Pointer conditionVar = igtl::ConditionVariable::New();
igtl::SimpleMutexLock *localMutex = new igtl::SimpleMutexLock();
ThreadData td;
td.conditionVar = conditionVar;
td.glock = localMutex;
td.isBroadCast = false;
td.threads = std::vector<bool>(2,false);
td.iFinalCount = 0;
td.condition = false;
igtl::MultiThreader::Pointer threader = igtl::MultiThreader::New();
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadWaiting1, &td);
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadCounter, &td);
igtl::Sleep(1000);
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadWaiting2, &td);
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadCounter, &td);
while (td.threads[0] == false || td.threads[1] == false)
igtl::Sleep(20);
EXPECT_EQ(td.iFinalCount, 20);
std::cerr<<"The child threads are released";
}
TEST(ConditionVariableTest, Broadcast)
{
igtl::ConditionVariable::Pointer conditionVar = igtl::ConditionVariable::New();
igtl::SimpleMutexLock *localMutex = new igtl::SimpleMutexLock();
ThreadData td;
td.conditionVar = conditionVar;
td.glock = localMutex;
td.isBroadCast = true;
td.threads = std::vector<bool>(2);
td.iFinalCount = 0;
td.condition = false;
igtl::MultiThreader::Pointer threader = igtl::MultiThreader::New();
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadWaiting1, &td);
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadCounter, &td);
igtl::Sleep(1000);
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadWaiting2, &td);
threader->SpawnThread((igtl::ThreadFunctionType) &TestThreadCounter, &td);
while (td.threads[0] == false || td.threads[1] == false)
igtl::Sleep(20);
EXPECT_LT(td.iFinalCount, 20);
std::cerr<<"The child threads are released";
}
void* TestThreadWaiting1(void* ptr)
{
igtl::MultiThreader::ThreadInfo* info =
static_cast<igtl::MultiThreader::ThreadInfo*>(ptr);
ThreadData* td = static_cast<ThreadData*>(info->UserData);
td->glock->Lock();
while(!td->condition)
{
td->conditionVar->Wait(td->glock);
}
td->threads[0]= true;
td->glock->Unlock();
return NULL;
}
void* TestThreadWaiting2(void* ptr)
{
igtl::MultiThreader::ThreadInfo* info =
static_cast<igtl::MultiThreader::ThreadInfo*>(ptr);
ThreadData* td = static_cast<ThreadData*>(info->UserData);
td->glock->Lock();
while(!td->condition)
{
td->conditionVar->Wait(td->glock);
}
td->threads[1]= true;
td->glock->Unlock();
return NULL;
}
void* TestThreadCounter(void* ptr)
{
//------------------------------------------------------------
// Get thread information
igtl::MultiThreader::ThreadInfo* info =
static_cast<igtl::MultiThreader::ThreadInfo*>(ptr);
ThreadData* td = static_cast<ThreadData*>(info->UserData);
//igtl::SimpleMutexLock *glock = td->glocks[0];
int i = 0;
while(++i <=10)
{
std::cerr<<i<<" in the first child thread"<<std::endl;
igtl::Sleep(200);
td->iFinalCount++;
};
td->condition = true;
if (td->isBroadCast)
{
td->conditionVar->Broadcast();
}
else
{
td->conditionVar->Signal();
}
return NULL;
}
int main(int argc, char **argv)
{
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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