大约有 2,400 项符合查询结果(耗时:0.0311秒) [XML]

https://stackoverflow.com/ques... 

Avoiding recursion when reading/writing a port synchronously?

...nchronous events and we are in need on synchronous reply, start a timer or sleep for timeout, if the handler or required objective is met then say true, else false and make sure the event gets cancelled /reset for the same if critical. ...
https://www.tsingfun.com/it/tech/1665.html 

C# 通过代码安装、卸载、启动、停止服务 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... service.Refresh(); System.Threading.Thread.Sleep(1000); if (service.Status == System.ServiceProcess.ServiceControllerStatus.Running) { break; } ...
https://www.tsingfun.com/it/cpp/cpp_spinlock.html 

C++ SpinLock 自旋锁的代码实现(全网最简略的方式) - C/C++ - 清泛网 - ...

...ck; thread thd([&]{ cout << "thread lock..." << endl; lck.lock(); sleep(3); cout << "thread unlock..." << endl; lck.unlock(); }); thd.detach(); this_thread::sleep_for(chrono::milliseconds(50)); cout << "main thread lock... wait." << endl; lck.lock(); cout << "SpinLock done." << ...
https://www.tsingfun.com/it/cp... 

Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...是否可以对职责场景覆盖全面? 代码规范 变量名、函数名、类名是否简单、精准的表达变量的含义?所有变量命名是否可以保持一致性?缩进,换行,可读性如何? (驼峰、下划线,这个根据公司或者谷歌等的编码规范...
https://stackoverflow.com/ques... 

How do I close a connection early?

...ob_get_length(); header("Content-Length: $size"); ob_end_flush(); flush(); sleep(13); error_log("do something in the background"); ?&gt; Which works fine until you substitute phpinfo() for echo('text I want user to see'); in which case the headers are never sent! The solution is to explic...
https://www.tsingfun.com/it/tech/1379.html 

写出高质量代码的10个Tips - 更多技术 - 清泛网 - 专注C/C++及内核技术

...主要还是原生的测试框架不够方便,每跑一次用例需要在模拟器或者真机上运行,效率太低,也不方便在CI环境下自动构建单元测试,好在有Robolectric,能帮我们解决部分问题。 单元测试的一个非常显著的优点是,当你需要修改...
https://www.tsingfun.com/it/da... 

如何查看Oracle用户的SQL执行历史记录? - 数据库(内核) - 清泛网 - 专注C/...

... --开启附加日志 alter database add supplemental log data; --模拟DML操作 conn p_chenming/... SQL> select * from test2; SQL> insert into test2 values(7,77); SQL> commit; conn / as sysdba --切归档 SQL> alter system switch logfile; SQL> select name,dest_id,thread#,sequen...
https://www.tsingfun.com/ilife/life/1942.html 

普通码农和CTO之间的差距,就是这7点了 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...人喜欢用if来不停的判断,看起来就像C语言一样“二”。函数的执行结果并不是很明显,每次都要get一下才能拿到结果。所以我用异常来处理错误,如果出错则抛出“RuntimeException”;函数的执行结果通过函数的返回值返回。 这...
https://stackoverflow.com/ques... 

how to customize `show processlist` in mysql?

... from the command line interface, is the pager command. eg pager grep -v Sleep | more; show full processlist; Then you can page through the results. You can also look for certain users, IPs or queries with grep or sed in this way. The pager command is persistent per session. ...
https://www.tsingfun.com/it/te... 

实战低成本服务器搭建千万级数据采集系统 - 更多技术 - 清泛网 - 专注C/C++...

...博的网页搜索,可见即可抓的方式,结合反监控系统模块模拟人的正常行为操作,搜索30万关键词数据,使资源最大化利用。为了保证在一个小时采集到,需要采用分布式多线程模式抓取,并发采集。并发的时候不能从同一个ip...