C runtime buffer

缓冲类型详解

最新推荐文章于 2024-04-13 21:24:52 发布

转载最新推荐文章于 2024-04-13 21:24:52 发布 · 110 阅读

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原文链接：https://my.oschina.net/sincoder/blog/96083

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#runtime #python

本文详细介绍了三种缓冲类型：无缓冲、块缓冲和行缓冲的工作机制。无缓冲使信息立即出现在目标文件或终端上；块缓冲将多个字符组合为一块进行写入；行缓冲则在遇到换行符时才进行写入。此外，文章还提到了如何使用fflush函数提前强制输出块缓冲的内容。

2019独角兽企业重金招聘Python工程师标准>>>

      The three types of buffering available are unbuffered, block buffered, and line buffered. When an output stream is
       unbuffered, information appears on the destination file or terminal as soon as written; when it is block buffered many charac‐
       ters are saved up and written as a block; when it is line buffered characters are saved up until a newline is output or input
       is read from any stream attached to a terminal device (typically stdin). The function fflush(3) may be used to force the
       block out early.   (See fclose(3).) Normally all files are block buffered. When the first I/O operation occurs on a file,
       malloc(3) is called, and a buffer is obtained. If a stream refers to a terminal (as stdout normally does) it is line
       buffered. The standard error stream stderr is always unbuffered by default.

转载于:https://my.oschina.net/sincoder/blog/96083