The Open Group Base Specifications Issue 7
IEEE Std 1003.1-2008, 2016 Edition
Copyright © 2001-2016 The IEEE and The Open Group

#### NAME

> posix_spawnattr_getsigdefault, posix_spawnattr_setsigdefault - get and set the spawn-sigdefault attribute of a spawn attributes object (ADVANCED REALTIME)

#### SYNOPSIS

> ``[SPN] #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`);``
> `
> `

#### DESCRIPTION

> 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.

#### RETURN VALUE

> 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.

#### ERRORS

> 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.

The following sections are informative.

#### EXAMPLES

> None.

#### APPLICATION USAGE

> These functions are part of the Spawn option and need not be provided on all implementations.

#### RATIONALE

> None.

#### FUTURE DIRECTIONS

> None.

#### SEE ALSO

> posix_spawn, posix_spawnattr_destroy, posix_spawnattr_getflags, posix_spawnattr_getpgroup, posix_spawnattr_getschedparam, posix_spawnattr_getschedpolicy, posix_spawnattr_getsigmask

> XBD <signal.h>, <spawn.h>

#### CHANGE HISTORY

> First released in Issue 6. Derived from IEEE Std 1003.1d-1999.

End of informative text.

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