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/* * Thread.h * * Created on: 2008-10-13 * Author: root */ #ifndef THREAD_H_ #define THREAD_H_ #include <unistd.h> #include <pthread.h> class Runnable { public: //运行实体 virtual void run() = 0; }; //线程类 class Thread: public Runnable { private: //线程初始化号 static int thread_init_number; //当前线程初始化序号 int current_thread_init_number; //线程体 Runnable *target; //当前线程的线程ID pthread_t tid; //线程的状态 int thread_status; //线程属性 pthread_attr_t attr; //线程优先级 sched_param param; //获取执行方法的指针 static void* run0(void* pVoid); //内部执行方法 void* run1(); //获取线程序号 static int get_next_thread_num(); public: //线程的状态－新建 static const int THREAD_STATUS_NEW = 0; //线程的状态－正在运行 static const int THREAD_STATUS_RUNNING = 1; //线程的状态－运行结束 static const int THREAD_STATUS_EXIT = -1; //构造函数 Thread(); //构造函数 Thread(Runnable *target); //析构 ~Thread(); //线程的运行体 void run(); //开始执行线程 bool start(); //获取线程状态 int get_state(); //等待线程直至退出 void join(); //等待线程退出或者超时 void join(unsigned long millis_time); //比较两个线程时候相同，通过current_thread_init_number判断 bool operator ==(const Thread* other_pthread); //获取this线程ID pthread_t get_thread_id(); //获取当前线程ID static pthread_t get_current_thread_id(); //当前线程是否和某个线程相等，通过tid判断 static bool is_equals(Thread* iTarget); //设置线程的类型:绑定/非绑定 void set_thread_scope(bool isSystem); //获取线程的类型:绑定/非绑定 bool get_thread_scope(); //设置线程的优先级，1－99，其中99为实时，意外的为普通 void set_thread_priority(int priority); //获取线程的优先级 int get_thread_priority(); }; int Thread::thread_init_number = 1; inline int Thread::get_next_thread_num() { return thread_init_number++; } void* Thread::run0(void* pVoid) { Thread* p = (Thread*) pVoid; p->run1(); return p; } void* Thread::run1() { thread_status = THREAD_STATUS_RUNNING; tid = pthread_self(); run(); thread_status = THREAD_STATUS_EXIT; tid = 0; pthread_exit(NULL); } void Thread::run() { if (target != NULL) { (*target).run(); } } Thread::Thread() { tid = 0; thread_status = THREAD_STATUS_NEW; current_thread_init_number = get_next_thread_num(); pthread_attr_init(&attr); } Thread::Thread(Runnable *iTarget) { target = iTarget; tid = 0; thread_status = THREAD_STATUS_NEW; current_thread_init_number = get_next_thread_num(); pthread_attr_init(&attr); } Thread::~Thread() { pthread_attr_destroy(&attr); } bool Thread::start() { return pthread_create(&tid, &attr, run0, this); } inline pthread_t Thread::get_current_thread_id() { return pthread_self(); } inline pthread_t Thread::get_thread_id() { return tid; } inline int Thread::get_state() { return thread_status; } void Thread::join() { if (tid > 0) { pthread_join(tid,NULL); } } void Thread::join(unsigned long millis_time) { if (tid == 0) { return; } if (millis_time == 0) { join(); } else { unsigned long k = 0; while (thread_status != THREAD_STATUS_EXIT && k <= millis_time) { usleep(100); k++; } } } bool Thread::operator ==(const Thread* other_pthread) { if(other_pthread==NULL) { return false; }if(current_thread_init_number==(*other_pthread).current_thread_init_number) { return true; } return false; } bool Thread::is_equals(Thread* iTarget) { if (iTarget == NULL) { return false; } return pthread_self() == iTarget->tid; } void Thread::set_thread_scope(bool isSystem) { if (isSystem) { pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); } else { pthread_attr_setscope(&attr, PTHREAD_SCOPE_PROCESS); } } void Thread::set_thread_priority(int priority) { pthread_attr_getschedparam(&attr,¶m); param.__sched_priority = priority; pthread_attr_setschedparam(&attr,¶m); } int Thread::get_thread_priority(){ pthread_attr_getschedparam(&attr,¶m); return param.__sched_priority; } #endif /* THREAD_H_ */ 以为newmain.cpp代码 /* * newmain.cpp * * Created on: 2008-10-13 * Author: root */ #include "Thread.h" #include <iostream> class MutilThread: public Thread { public: Thread* th1; Thread* th2; void Test() { th1 = new Thread(this); th1->set_thread_priority(90); th2 = new Thread(this); start(); th1->start(); th2->start(); th1->join(); th2->join(); } void run() { if (Thread::is_equals(th1)) { int number = 100; for (int i = 0; i < 10; i++) { std::cout << "this thread1 number is: " << number++ << std::endl; std::cout << "\t pid is: " << getpid() << " tid is " << get_current_thread_id() << std::endl; sleep(1); } } else if (Thread::is_equals(th2)) { int number = 200; for (int i = 0; i < 10; i++) { std::cout << "this is thread2 number is: " << number++ << std::endl; std::cout << "\t pid is: " << getpid() << " tid is " << get_current_thread_id() << std::endl; sleep(1); } } else if (Thread::is_equals(this)) { int number = 300; for (int i = 0; i < 10; i++) { std::cout << "this is thread0 number is: " << number++ << std::endl; std::cout << "\t pid is: " << getpid() << " tid is " << get_current_thread_id() << std::endl; sleep(1); } } } }; int main(int argc, char **argv) { bool ret; MutilThread *mt; mt = new MutilThread(); mt->Test(); return (EXIT_SUCCESS); } |
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