posix_spawnattr_getsigmask or posix_spawnattr_setsigmask Subroutine

Purpose

Gets and sets the spawn-sigmask attribute of a spawn attributes object.

Syntax

#include <signal.h>
#include <spawn.h>

int posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict attr,
       sigset_t *restrict sigmask);
int posix_spawnattr_setsigmask(posix_spawnattr_t *restrict attr,
       const sigset_t *restrict sigmask);

Description

The posix_spawnattr_getsigmask subroutine gets the value of the spawn-sigmask attribute from the attributes object referenced by attr.

The posix_spawnattr_setsigmask subroutine sets the spawn-sigmask attribute in an initialized attributes object referenced by attr.

The spawn-sigmask attribute represents the signal mask in effect in the new process image of a spawn operation (if POSIX_SPAWN_SETSIGMASK is set in the spawn-flags attribute). The default value of this attribute is unspecified.

Return Values

Upon successful completion, the posix_spawnattr_getsigmask subroutine returns 0 and stores the value of the spawn-sigmask attribute of attr into the object referenced by the sigmask parameter; otherwise, an error number is returned to indicate the error.

Upon successful completion, the posix_spawnattr_setsigmask subroutine returns 0; otherwise, an error number is returned to indicate the error.

Error Codes