C++ ThreadPtr::start方法代码示例

void 
MyObjectI::amdAddWithRetry_async(const Test::AMD_MyObject_amdAddWithRetryPtr& cb, int x, int y, const Ice::Current& current)
{
    class ThreadI : public Thread
    {
    public:
        
        ThreadI(const Test::AMD_MyObject_amdAddWithRetryPtr& cb, int x, int y) :
            _cb(cb),
            _x(x),
            _y(y)
        {
        }

        void run()
        {
            ThreadControl::sleep(Time::milliSeconds(10));
            _cb->ice_response(_x + _y);
        }
    private:
        Test::AMD_MyObject_amdAddWithRetryPtr _cb;
        int _x;
        int _y;
    };

    ThreadPtr thread = new ThreadI(cb, x, y);
    thread->start().detach();

    Ice::Context::const_iterator p = current.ctx.find("retry");
    
    if(p == current.ctx.end() || p->second != "no")
    {
        throw Test::RetryException(__FILE__, __LINE__);
    }
}

ThreadPool::ThreadPool(int size , int sizeMax, int sizeWarn,int listSizeMax,int stackSize) :
_destroyed(false),
_listSize( 0 ),
_procSize( 0 ),
_listSizeMax( listSizeMax),
_size(size),
_sizeMax(sizeMax),
_sizeWarn(sizeWarn),
_stackSize(0),
_running(0),
_inUse(0),
_load(1.0),
_promote(true),
_waitingNumber(0)
{
if ( size < 1 )
size = 1;

if ( sizeMax < size )
sizeMax = size;

if ( sizeWarn > sizeMax )
sizeWarn = sizeMax;

if ( stackSize < 0 )
stackSize = 16 * 1024 * 1024;

const_cast<int&>(_size) = size;
const_cast<int&>(_sizeMax) = sizeMax;
const_cast<int&>(_sizeWarn) = sizeWarn;
const_cast<size_t&>(_stackSize) = static_cast<size_t>(stackSize);

try
{
for(int i = 0 ; i < _size ; ++i)
{
ThreadPtr thread = new EventHandlerThread(this);
thread->start(_stackSize);
_threads.push_back(thread);
++_running;
}
}
catch(const Exception& ex)
{
destroy();
joinWithAllThreads();
}
}

void ThreadPool::promoteFollower( pthread_t thid )
{
if(_sizeMax > 1)
{
this->lock();
assert(!_promote);
_promote = true;
this->notify();

if(!_destroyed)
{
assert(_inUse >= 0);
++_inUse;

if(_inUse == _sizeWarn)
{
}

assert(_inUse <= _running);
if(_inUse < _sizeMax && _inUse == _running)
{
try
{
ThreadPtr thread = new EventHandlerThread(this);
thread->start(_stackSize);
_threads.push_back(thread);
++_running;
}
catch(const Exception& ex)
{
throw ThreadCreateException(__FILE__,__LINE__);
}
}
}
this->unlock();
}
}

void
PriorityInversionTest::run()
{
    int cores, high, medium, low, timeout;
    timeout = 30;
#ifdef _WIN32
    return; //Priority inversion is not supported by WIN32
#else
    try
    {
        IceUtil::Mutex m;
    }
    catch(const IceUtil::ThreadSyscallException&)
    {
        return; // Mutex protocol PrioInherit not supported
    }
    cores = static_cast<int>(sysconf(_SC_NPROCESSORS_ONLN));
    high = 45;
    medium = 35;
    low = 1;
#endif

    {
        Monitor<Mutex> monitor;
        TaskCollectorPtr collector = new TaskCollector(cores, high, medium, low, monitor);
        vector<ThreadControl> threads;
                
        SharedResourcePtr shared = new SharedResourceMutex(collector);

        //
        // Create one low priority thread.
        //
        TaskPtr lowThread = new Task(shared);
        threads.push_back(lowThread->start(128, low));
        lowThread->waitAcquired();

        //
        // Create one high priority thread that use the same shared resource
        // as the previous low priority thread
        //
        TaskPtr highThread = new Task(shared);
        threads.push_back(highThread->start(128, high));

        //
        // Create one medium priority thread per core.
        //
        for(int cont = 0; cont < cores; ++cont)
        {
            ThreadPtr t = new MediumPriorityThread(collector, highThread, timeout);
            threads.push_back(t->start(128, medium));
        }

        //
        // Join with all the threads.
        //
        vector<ThreadControl>::iterator it;
        for(it = threads.begin(); it != threads.end(); ++it)
        {
            try
            {
                (*it).join();
            }
            catch(...)
            {
            }
        }
    }

    //
    // Same test with a recursive mutex.
    //
    {
        Monitor<Mutex> monitor;
        TaskCollectorPtr collector = new TaskCollector(cores, high, medium, low, monitor);

        SharedResourcePtr shared = new SharedResourceRecMutex(collector);

        vector<ThreadControl> threads;

        //
        // Create one low priority thread.
        //
        TaskPtr lowThread = new Task(shared);
        threads.push_back(lowThread->start(128, low));
        lowThread->waitAcquired();

        //
        // Create one high priority thread that use the same shared resource
        // as the previous low priority thread.
        //
        ThreadPtr highThread = new Task(shared);
        threads.push_back(highThread->start(128, high));

        //
        // Create one medium priority tasks per core that runs until
        // the high priority thread is running.
        //
        for(int cont = 0; cont < cores; ++cont)
        {
            ThreadPtr t = new MediumPriorityThread(collector, highThread, timeout);
//.........这里部分代码省略.........