std::sig_atomic_t
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Defined in header
<csignal> |
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typedef /* unspecified */ sig_atomic_t;
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An integer type which can be accessed as an atomic entity even in the presence of asynchronous interrupts made by signals.
Notes
Until C++11, which introduced std::atomic and std::atomic_signal_fence, about the only thing a strictly conforming program could do in a signal handler was to assign a value to a volatile static std::sig_atomic_t variable and promptly return.
See also
| sets a signal handler for particular signal (function) |
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(C++11)
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fence between a thread and a signal handler executed in the same thread (function) |