pthread_sigmask man page on MirBSD

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PTHREAD_SIGMASK(3)	   BSD Programmer's Manual	    PTHREAD_SIGMASK(3)

NAME
     pthread_sigmask - examine and/or change a thread's signal mask

SYNOPSIS
     #include <pthread.h>
     #include <signal.h>

     int
     pthread_sigmask(int how, const sigset_t *set, sigset_t *oset);

DESCRIPTION
     The pthread_sigmask() function examines and/or changes the calling
     thread's signal mask.

     If set is not NULL, it specifies a set of signals to be modified, and how
     specifies what to set the signal mask to:

     SIG_BLOCK	  Union of the current mask and set.

     SIG_UNBLOCK  Intersection of the current mask and the complement of set.

     SIG_SETMASK  set.

     If oset is not NULL, the previous signal mask is stored in the location
     pointed to by oset.

     SIGKILL and SIGSTOP cannot be blocked, and will be silently ignored if
     included in the signal mask.

RETURN VALUES
     If successful, pthread_sigmask() returns 0. Otherwise, an error is re-
     turned.

ERRORS
     pthread_sigmask() will fail if:

     [EINVAL]	   how is not one of the defined values.

SEE ALSO
     sigaction(2), sigpending(2), sigprocmask(2), sigsuspend(2), pthreads(3),
     sigsetops(3)

STANDARDS
     pthread_sigmask() conforms to ISO/IEC 9945-1:1996 ("POSIX").

MirOS BSD #10-current		March 21, 1999				     1
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