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80 lines
1.9 KiB
80 lines
1.9 KiB
#include <iostream>
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#include <event2/event.h>
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#include <string.h>
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#include <thread>
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#ifdef _WIN32
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#else
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#include <signal.h>
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#endif // !_WIN32
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using namespace std;
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static timeval t1 = {1,0};
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void timer1(int sock,short which, void *arg){
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cout << "[timer1]" << flush;
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event* ev = (event*)arg;
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if(!evtimer_pending(ev,&t1) ){
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evtimer_del(ev);
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evtimer_add(ev,&t1);
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}
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}
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void timer2(int sock,short which, void *arg){
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cout << "[timer2]" << flush;
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this_thread::sleep_for(3000ms); //c++ 11
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}
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void timer3(int sock,short which, void *arg){
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cout << "[timer3]" << flush;
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}
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int main(int agrc,char** agrv){
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#ifdef _WIN32
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//初始化socket库
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WSADATA wsa;
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WSAStartup(MAKEWORD(2, 2), &wsa);
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#else
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if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { //忽略管道信号，发送数据给已关闭的socket，会飞掉！
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return 1;
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}
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#endif
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event_base *base = event_base_new();
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//定时器
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cout << "test timer" << endl;
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//非持久定时器 只进入一次
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event* evl = evtimer_new(base ,timer1,event_self_cbarg());
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if(evl == NULL){
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cout << "evtimer_new timer1 failed!" <<endl;
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return -1;
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}
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evtimer_add(evl,&t1);
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static timeval t2;
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t2.tv_sec = 1;
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t2.tv_usec = 200000; //微秒
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event *ev2 = event_new(base,-1,EV_PERSIST,timer2,0);
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event_add(ev2,&t2);
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//超时性能优化，默认event用二叉堆存储，插入删除 时间复杂度为O(logN)
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//优化到双向队列 插入删除O(1)
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event *ev3 = event_new(base,-1,EV_PERSIST,timer3,0);
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static timeval tv_in = {3,0};
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const timeval * t3;
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t3 = event_base_init_common_timeout(base,&tv_in);
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event_add(ev3,t3);
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//进入事件主循环
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event_base_dispatch(base);
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event_free(evl);
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event_free(ev2);
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event_base_free(base);
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return 0;
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}
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