📄 write.cpp
字号:
#include "prwlock.h"#include <fcntl.h>#include <iostream> using namespace std; int main(){ int fd = open("for_rwlock",O_WRONLY | O_CREAT,0644); cout<<"before enter write lock\n"; if(Prwlock::wlock(fd)<0) { cout<<"wlock error\n"; return -1; } cout<<"*** enter write lock ***\n"; sleep(3); Prwlock::unlock(fd); cout<<"leave write lock\n"; close(fd);}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -