sigpending man page


This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

sigpending — examine pending signals


#include <signal.h>

int sigpending(sigset_t *set);


The sigpending() function shall store, in the location referenced by the set argument, the set of signals that are blocked from delivery to the calling thread and that are pending on the process or the calling thread.

Return Value

Upon successful completion, sigpending() shall return 0; otherwise, -1 shall be returned and errno set to indicate the error.


No errors are defined.

The following sections are informative.

See Also

exec, pthread_sigmask(), sigaddset(), sigdelset(), sigemptyset(), sigfillset(), sigismember()

The Base Definitions volume of POSIX.1‐2008, <signal.h>


2013 IEEE/The Open Group POSIX Programmer's Manual