void ScrAddrFilter::scanScrAddrMapInNewThread()
{
auto scanMethod = [this](void)->void
{ this->scanScrAddrThread(); };
thread scanThread(scanMethod);
scanThread.detach();
}
void scanThreads() {
Thread *thread;
pthread_mutex_lock(&lock);
for(thread = &main_thread; thread != NULL; thread = thread->next)
scanThread(thread);
pthread_mutex_unlock(&lock);
}
// Test if we can read and write from multiple threads without failures
TEST_P(BufferTest, MultiThreadScanAndWrite)
{
// Start scan thread
bool stop = false;
uint32_t fails = 0;
std::thread scanThread( Scan, mgr, GetParam().pagesOnDisk, std::ref(stop), std::ref(fails) );
// Start read/write threads
std::vector<std::future<uint32_t>> readWriteFutures;
for ( uint32_t i = 0; i < GetParam().threads; i++ )
{
readWriteFutures.push_back( std::async( ReadWrite, mgr, i,
GetParam().threads, GetParam().pagesOnDisk ) );
}
// Wait for read/write threads
uint32_t totalCount = 0;
for ( uint32_t i = 0; i < GetParam().threads; i++ )
{
totalCount += readWriteFutures[i].get();
}
// Wait for scan thread
stop = true;
scanThread.join();
EXPECT_EQ( 0, fails );
// Restart buffer manager
SDELETE(mgr);
mgr = new BufferManager( GetParam().pagesInMemory );
// Verify results
uint32_t totalCountOnDisk = 0;
for ( uint32_t i = 0; i < GetParam().pagesOnDisk; i++ )
{
BufferFrame& bf = mgr->FixPage( BufferManager::MergePageId( DB_TEST_SEGMENT, i ), false );
totalCountOnDisk += reinterpret_cast<uint32_t*>(bf.GetData())[0];
mgr->UnfixPage( bf, false );
}
EXPECT_EQ( totalCount, totalCountOnDisk );
}
