POSIX_SPAWNATTR_GETSIGDEFAULT(3C) Standard C Library Functions POSIX_SPAWNATTR_GETSIGDEFAULT(3C)

posix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault — get and set spawn-sigdefault attribute of spawn attributes object

Standard C Library (libc, -lc)

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

int
posix_spawnattr_getsigdefault(const posix_spawnattr_t *restrict attr, sigset_t *restrict sigdefault);

int
posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict attr, const sigset_t *restrict sigdefault);

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

The () function sets the spawn-sigdefault attribute in an initialized attributes object referenced by attr.

The spawn-sigdefault attribute represents the set of signals to be forced to default signal handling in the new process image (if POSIX_SPAWN_SETSIGDEF is set in the spawn-flags attribute) by a spawn operation. The default value of this attribute is an empty signal set.

Upon successful completion, posix_spawnattr_getsigdefault() returns 0 and stores the value of the spawn-sigdefault attribute of attr into the object referenced by the sigdefault parameter. Otherwise, an error number is returned to indicate the error.

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

These functions may fail if:

The value specified by attr is invalid.

The posix_spawnattr_setsigdefault() function may fail if:

The value of the attribute being set is not valid.

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(7), standards(7)

The posix_spawnattr_getsigdefault() and posix_spawnattr_setsigdefault() functions conform to IEEE Std 1003.1-2001 (“POSIX.1”).

July 4, 2026 OmniOS