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