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Add a signal to a set
#include <signal.h>
int sigaddset( sigset_t *set,
int signo );
- set
- A pointer to the sigset_t object that you want to add
the signal to.
- signo
- The signal that you want to add.
For more information, see
“POSIX signals”
in the documentation for SignalAction().
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The sigaddset() function adds signo to the set
pointed to by set.
- 0
- Success.
- -1
- An error occurred
(errno is set).
- EINVAL
- The signal signo isn't valid.
See sigemptyset().
POSIX 1003.1
Safety: | |
Cancellation point |
No |
Interrupt handler |
Yes |
Signal handler |
Yes |
Thread |
Yes |
kill(),
pthread_sigmask(),
raise(),
sigaction(),
sigdelset(),
sigemptyset(),
sigfillset(),
sigismember(),
signal(),
sigpending(),
sigprocmask()
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