async-signal safe 问题 - Unix版

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Unix版 - async-signal safe 问题

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话题: signal话题: async话题: safe话题: malloc话题: handler

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(共1页)

g****o
发帖数: 1284

由于malloc()不是async-signal-safe的, 所以不能在signal handler里使用它. 但如果
在malloc()里用sigmask把所有信号都屏蔽掉, 也就是说它不会受到信号的干扰, 那是不
是就可以在singal handler里调用malloc了呢? 盼各位大侠赐教!

o***z
发帖数: 133

if it's known that the signal didn't happen inside a POSIX function,
then it should be safe to call arbitrary POSIX functions inside a handler.

【在 g****o 的大作中提到】

: 由于malloc()不是async-signal-safe的, 所以不能在signal handler里使用它. 但如果
: 在malloc()里用sigmask把所有信号都屏蔽掉, 也就是说它不会受到信号的干扰, 那是不
: 是就可以在singal handler里调用malloc了呢? 盼各位大侠赐教!

(共1页)

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相关话题的讨论汇总
话题: signal话题: async话题: safe话题: malloc话题: handler

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