errno 是如何实现线程安全的？ - V2EX

errno 是如何实现线程安全的？ - V2EX

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这是一个创建于 3939 天前的主题，其中的信息可能已经有所发展或是发生改变。

3 条回复 2015-01-06 20:08:25 +08:00

1

songco

2015-01-05 12:39:08 +08:00

linux下是thread-local的, posix某个版本开始好像也有类似的定义.

2

flewover

2015-01-05 12:39:19 +08:00

[Thread-safety and POSIX.1](http://www.unix.org/whitepapers/reentrant.html)

Redefinition of errno 那部分

3

c4pt0r

2015-01-06 20:08:25 +08:00

thread local

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