This is generally done by selecting one process for execution and letting it run for a short period (called a timeslice), or until it needs to wait for some event, such as IO to complete.
通常的做法是,选择一个要执行的进程,并让它在短时间内运行(这个时间称为时间片),或者一直运行到它需要等待的一些事件,如要完成的IO等。
Tomcat uses NIO (Non-blocking IO) to keep the connection alive without wasting the waiting threads.
Tomcat 使用 NIO(无阻塞 IO)来保持连接活动,无需浪费等待中的线程。
- Well -- and I'll fix this blue next time -- I'm first telling the compiler I need access to the standard io library because printf is declared there.
哦!--下次我把这个字体颜色改成蓝色的-,我先告诉编译器--我需要使用,标准输入输出库,因为printf在那个库里面申明的。
stdio c So somewhere there's standard IO dot C, stdio h somewhere they're standard IO dot H, but, for me, right now, the only file I need to know about is the dot H, -- because what Sharp include really does -- it's what's called a preprocessor directive.
所以某个地方有一个,现在对于我来说它们是,我只要知道那个,h文件,因为Sharp包含的-,叫做预处理指令。
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