#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 posix_spawnattr_getsigdefault() function shall obtain the value of the spawn-sigdefault attribute from the attributes object referenced by attr.
The posix_spawnattr_setsigdefault() function shall set 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 shall be an empty signal set.
Upon successful completion, posix_spawnattr_getsigdefault() shall return zero and store the value of the spawn-sigdefault attribute of attr into the object referenced by the sigdefault parameter; otherwise, an error number shall be returned to indicate the error.
Upon successful completion, posix_spawnattr_setsigdefault() shall return zero; otherwise, an error number shall be returned to indicate the error.
These functions may fail if:
The posix_spawnattr_setsigdefault() function may fail if:
The following sections are informative.
These functions are part of the Spawn option and need not be provided on all implementations.
posix_spawn() , posix_spawnattr_destroy() , posix_spawnattr_init() , posix_spawnattr_getflags() , posix_spawnattr_getpgroup() , posix_spawnattr_getschedparam() , posix_spawnattr_getschedpolicy() , posix_spawnattr_getsigmask() , posix_spawnattr_setflags() , posix_spawnattr_setpgroup() , posix_spawnattr_setschedparam() , posix_spawnattr_setschedpolicy() , posix_spawnattr_setsigmask() , posix_spawnp() , the Base Definitions volume of IEEE Std 1003.1-2001, <signal.h>, <spawn.h>