NAME
posix_spawnattr_getsigmask, posix_spawnattr_setsigmask - get and set
the spawn-sigmask attribute of a spawn attributes object (ADVANCED
REALTIME)
SYNOPSIS
#include <signal.h>
#include <spawn.h>
int posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict attr,
sigset_t *restrict sigmask);
int posix_spawnattr_setsigmask(posix_spawnattr_t *restrict attr,
const sigset_t *restrict sigmask);
DESCRIPTION
The posix_spawnattr_getsigmask() function shall obtain the value of the
spawn-sigmask attribute from the attributes object referenced by attr.
The posix_spawnattr_setsigmask() function shall set the spawn-sigmask
attribute in an initialized attributes object referenced by attr.
The spawn-sigmask attribute represents the signal mask in effect in the
new process image of a spawn operation (if POSIX_SPAWN_SETSIGMASK is
set in the spawn-flags attribute). The default value of this attribute
is unspecified.
RETURN VALUE
Upon successful completion, posix_spawnattr_getsigmask() shall return
zero and store the value of the spawn-sigmask attribute of attr into
the object referenced by the sigmask parameter; otherwise, an error
number shall be returned to indicate the error.
Upon successful completion, posix_spawnattr_setsigmask() 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_setsigmask() 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_init() ,
posix_spawnattr_getsigdefault() , posix_spawnattr_getflags() ,
posix_spawnattr_getpgroup() , posix_spawnattr_getschedparam() ,
posix_spawnattr_getschedpolicy() , posix_spawnattr_setsigdefault() ,
posix_spawnattr_setflags() , posix_spawnattr_setpgroup() ,
posix_spawnattr_setschedparam() , posix_spawnattr_setschedpolicy() ,
posix_spawnp() , the Base Definitions volume of IEEE Std 1003.1-2001,
<signal.h>, <spawn.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .