sigpending

Examines pending signals.

Format 

#include  <signal.h>

int sigpending  (sigset_t *set);

Arguments

set
A pointer to a sigset_t structure.

Description

This function stores the set of signals that are blocked from delivery and pending to the calling process in the location pointed to by the set argument.

Call either the sigemptyset or the sigfillset function at least once for each object of type sigset_t prior to any other use of that object. If you do not initialize an object in this way and supply an argument to the sigpending function, the result is undefined.

See sigemptyset, and sigfillset in this section.

Return Values
0  Indicates success. 
-1  Indicates an error; errno is set to the following value:

  • SIGSEGV - Bad mask argument.
 

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