我创建在C++以下优先级队列优先队列C++
priority_queue < ThreadInfo*, vector<ThreadInfo*>, CompareThread > thread_queue;
其中的ThreadInfo类是
class ThreadInfo {
public:
ThreadInfo();
ThreadInfo(const ThreadInfo& orig);
ThreadInfo(int thread_id,int init_time,int sleep_time,int run_time,int priority,int is_critical)
{
this->thread_id=thread_id;
this->is_critical=is_critical;
this->init_time=init_time;
this->priority=priority;
this->run_time=run_time;
this->sleep_time=sleep_time;
}
void set_critical(bool value)
{
is_critical=value;
}
bool get_critical()
{
return is_critical;
}
void set_sleep_time(long value)
{
sleep_time=value;
}
long get_sleep_time(long value)
{
return sleep_time;
}
void set_run_time(long value)
{
sleep_time=value;
}
long get_run_time(long value)
{
return sleep_time;
}
int get_lock_type()
{
return lock_type;
}
void set_lock_type(int lock_type)
{
this->lock_type=lock_type;
}
int get_priority()
{
return priority;
}
void set_priority(int value)
{
this->priority=value;
}
unsigned long int get_thread_id()
{
return thread_id;
}
void set_thread_id(unsigned long int value)
{
this->thread_id=value;
}
virtual ~ThreadInfo();
private:
unsigned long int thread_id;
long init_time;
long sleep_time;
long run_time;
int priority;
bool is_critical;
//1=spin,2=busy,3=semaphore
int lock_type;
};
和比较类是
class CompareThread {
public:
bool operator()(ThreadInfo* th1, ThreadInfo* th2)
{
if (th1->get_priority()>th2->get_priority()) return true;
return false;
}
};
然后我在插入元件下面的函数,
void ThreadScheduler::register_thread(ThreadInfo &th)
{
thread_queue.push(&th);
}
我打电话从下面的函数线程寄存器,
int ThreadController::thread_register(pthread_t &t, int priority, bool critical)
{
ThreadInfo ti;
cout<<"t reg:"<<t<<endl;
ti.set_thread_id(t);
ti.set_critical(critical);
ti.set_priority(priority);
ThreadScheduler::Instance()->register_thread(ti);
}
但每次当我推一些的ThreadInfo对象到队列我得到的最新的对象时,我打电话thread_queue.top(时间),无论是它应该返回最低优先级的线程对象。这里有什么问题吗?
去你能告诉你把输入到队列中的代码? – 2012-03-12 12:47:38
嗨我更新了代码。在这里你可以看到我是如何推动元素。@ JoachimPileborg – 2012-03-12 12:50:45
你贴了很多* *的代码,*大部分*它无关.. – 2012-03-12 12:51:03