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Yunus Shaikh
ebb86e4c2e
The sigaction entry said that the mask and flags of a running handler are not applied. It now says what is: the signal itself unless SA_NODEFER, and the first 32 signals of sa_mask, are added to the process-wide mask while the handler runs, and SA_RESETHAND resets the disposition first. It also notes what is not: SA_ONSTACK, and the delivery of a signal left pending by a handler that a host signal ran asynchronously, which waits for the next raise or _sigprocmask.