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#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 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.
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:
EINVAL
The value specified by attr is invalid.
The posix_spawnattr_setsigdefault() function may fail if:
EINVAL
The value of the attribute being set is not valid.
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)