thread-safe vs async-signal safe

青春壹個敷衍的年華 提交于 2019-12-06 09:14:49

A function can be made thread-safe by protecting the state it modifies with a mutex. This is, however, not async-signal-safe since if you call the function e.g. from a signal handler the program can deadlock.

A common function with this property is malloc().

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