同时遍历当前slot上链表里的每一个Timer,如果Timer的圈数大于0,将Timer里的圈数-1,否则激活这个Timer。 takeAllTimeout() 是必要的,由于误差的存在,每次epoll_wait超时后(一个基准频率),时间轮可能需要走动好几步。如果每次epoll_wait后直接tick()而不是takeAllTimeout(),会导致误差一直被累
namespace LeakLib { void slowMemoryLeak() { int arrSize = 10; while (true) { int* p = new int[arrSize]; for (int i = 0; i < arrSize; ++i) { p[i] = i; // Assign values to occupy physical memory } sleep(1); // wait for 1 second } } } 注意这里编译的时候,带了帧指针...
另外某个线程调用 notify_* 唤醒了当前线程),wait()函数也是自动调用 lck.lock(),使得lck的状态和 wait 函数被调用时相同。代码示例: #include <iostream> // std:: #include<thread> // std::thread, std::this_thread::yield #include <mutex> // std::mutex, std::unique_lock #include <condition...
return reserveAndGetWaitLength(permits, stopwatch.readMicros()); } } reserve需要获取锁才可以操作,这也是令牌桶线程安全的原因,以下操作都在同步代码块中。 继续reserveAndGetWaitLength方法。 final long reserveAndGetWaitLength(int permits, long nowMicros) { long momentAvailable = reserveEarliestAvailable(p...
c_arr().second << " ints:\n"; for (auto n : s.v) std::cout << n << ' '; std::cout << '\n'; std::cout << "Range-for over brace-init-list: \n"; for (int x : {-1, -2, -3}) // auto 的规则令此带范围 for 工作 std::cout << x << ' '; std::cout <...
#include<stdio.h>#includeintmain(void){clock_t wait;double delay=1.7;printf("wait %.2f seconds\n",delay);wait=clock();for(;clock()-wait<(long int)(CLOCKS_PER_SEC*delay););printf("end\n");return0;} 运行结果如图: time命令查看...
Is it possible to wait until the main window of the process has been constructed? Is it possible to write data to a text file using "fwrite" function in C Is it safe to delete "ipch" folder - Pre-compiled headers? Is MFC obsolete? Is MFC still fully supported by Microsoft Is there...
()): return: 1 printf(“进程创建成功,请关闭记事本结束进程.\n") // Wait until child process exits WaitForSingleObject (pi.hProcess, INFINITE); // Close process and thread handles CloseHandle (pi.hProcess); CloseHandle (pi.hThread); // first thread dwThrdParam=1: hFstThread=CreateThread(...
(1)无条件等待 intpthread_cond_wait(pthread_cond_t *cond,pthread_mutex_t *mutex); (2)计时等待 intpthread_cond_timewait(pthread_cond_t *cond,pthread_mutex *mutex,const timespec *abstime); 如果在给定时刻前条件没有满足,则返回ETIMEOUT,结束等待,其中abstime以与time()系统调用相同意义的绝对时间...
Task.Delay(3000).Wait();for(intslice =0; slice < slices; slice++) { Console.WriteLine("flipping a slice of bacon"); } Console.WriteLine("cooking the second side of bacon..."); Task.Delay(3000).Wait(); Console.WriteLine("Put bacon on plate");returnnewBacon(); ...