NAME
posix_spawnattr_setsigmask
posix_spawnattr_getsigmask —
set or get the
spawn-sigmask
attribute on a posix_spawnattr_t
SYNOPSIS
#include
<spawn.h>
int
posix_spawnattr_setsigmask(posix_spawnattr_t
*restrict attr, const sigset_t *restrict
sigmask);
int
posix_spawnattr_getsigmask(const
posix_spawnattr_t *restrict attr, sigset_t *restrict
sigmask);
DESCRIPTION
The
posix_spawnattr_setsigmask()
function sets the sigmask on the attributes object
referenced by attr.
The
posix_spawnattr_getsigmask()
function retrieves the sigmask on the attributes
object referenced by attr.
The argument sigmask is the initial signal mask to be set for the new process on creation if the POSIX_SPAWN_SETSIGMASK flag is set in the posix_spawnattr_t. It's default value must be set via a call to posix_spawnattr_setflags(3) or the behaviour is undefined.
RETURN VALUES
On success, these functions return 0; on failure they return an
error number from <errno.h>.
Additionally, if successful,
posix_spawnattr_getsigmask() will modify the
contents of the sigmask parameter with the current
attribute value.
ERRORS
These functions may fail if:
- [
EINVAL] - The value specified by attr is invalid.
- [
EINVAL] - The value of attr is invalid.
SEE ALSO
posix_spawn(2), posix_spawnp(2), posix_spawnattr_init(3), posix_spawnattr_destroy(3), posix_spawnattr_setflags(3)
STANDARDS
Version 3 of the Single UNIX Specification (“SUSv3”) [SPN]
HISTORY
The posix_spawnattr_setsigmask() and
posix_spawnattr_getsigmask() function calls appeared
in Version 3 of the Single UNIX Specification
(“SUSv3”) [SPN].