PTHREAD_SIGMASK(3) | Library Functions Manual | PTHREAD_SIGMASK(3) |
pthread_sigmask
—
examine and/or change a thread's signal mask
#include
<signal.h>
int
pthread_sigmask
(int
how, const sigset_t *
restrict set, sigset_t *
restrict oset);
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
SIG_UNBLOCK
SIG_SETMASK
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.
If successful, pthread_sigmask
() returns
0. Otherwise, an error is returned.
The pthread_sigmask
() function will fail
if:
EINVAL
]#include
<pthread.h>
#include
<signal.h>
The include file
<pthread.h>
is
necessary.
sigaction(2), sigpending(2), sigprocmask(2), sigsuspend(2), sigsetops(3), compat(5)
pthread_sigmask
() conforms to ISO/IEC
9945-1:1996 (``POSIX.1'')
February 19, 2011 | macOS 14.6 |