66 lines
1.4 KiB
Groff
66 lines
1.4 KiB
Groff
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SIGPROCMASK(2) Minix Programmer's Manual SIGPROCMASK(2)
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NAME
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sigprocmask - manipulate the signal mask
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SYNOPSIS
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#include <signal.h>
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int sigprocmask(int how, const sigset_t *set, sigset_t *oset)
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DESCRIPTION
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Sigprocmask() examines or manipulates the signal mask. This mask is the
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set of signals that are currently blocked. The how argument determines
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the action that must be performed. In all cases the signal set
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referenced by oset, if not NULL, will be used to receive the old signal
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mask. The set argument, if not NULL, will be used to set or modify the
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current signal mask.
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How can be one of:
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SIG_BLOCK Add the signals referenced by set to the mask.
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SIG_UNBLOCK Remove the signals referenced by set from the mask.
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SIG_SETMASK Set the signal mask to the set referenced by set.
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The value of how is ignored if set is NULL.
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SEE ALSO
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sigaction(2), sigpending(2), sigsuspend(2), sigset(3).
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DIAGNOSTICS
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Returns 0 on success and -1 on error. The error code is EFAULT for a bad
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set or oset address, or EINVAL for a bad how argument.
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AUTHOR
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Kees J. Bot (kjb@cs.vu.nl)
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