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posix_spawnattr_getsigmask, posix_spawnattr_setsigmask - get and set spawn-sigmask attribute of spawn attributes object

#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);

The posix_spawnattr_getsigmask() function obtains the value of the spawn-sigmask attribute from the attributes object referenced by attr.

The posix_spawnattr_setsigmask() function 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.

Upon successful completion, posix_spawnattr_getsigmask() 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, posix_spawnattr_setsigmask() returns 0. Otherwise, an error number is returned to indicate the error.

These functions may fail if:

EINVAL

The posix_spawnattr_setsigmask() function may fail if:

EINVAL

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Interface Stability	Standard
MT-Level	MT-Safe

posix_spawn(3C), posix_spawnattr_destroy(3C), posix_spawnattr_getflags(3C), posix_spawnattr_getpgroup(3C), posix_spawnattr_getschedparam(3C), posix_spawnattr_getschedpolicy(3C), posix_spawnattr_getsigmask(3C), attributes(5), standards(5)