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NAME    [Toc]    [Back]

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

LIBRARY    [Toc]    [Back]

     Reentrant C Library (libc_r, -lc_r)

SYNOPSIS    [Toc]    [Back]

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

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

DESCRIPTION    [Toc]    [Back]

     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    [Toc]    [Back]

     If successful, pthread_sigmask() returns 0.  Otherwise, an error is

ERRORS    [Toc]    [Back]

     The pthread_sigmask() function will fail if:

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

SEE ALSO    [Toc]    [Back]

     sigaction(2), sigpending(2), sigprocmask(2), sigsuspend(2), sigsetops(3)

STANDARDS    [Toc]    [Back]

     The pthread_sigmask() function conforms to ISO/IEC 9945-1:1996

FreeBSD 5.2.1			April 27, 2000			 FreeBSD 5.2.1
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 Similar pages
Name OS Title
pthread_sigmask Tru64 Examine or change the current thread's signal mask
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