POSIX_SPAWNATTR_GETFLAGS(P)POSIX Programmer's ManuaPOSIX_SPAWNATTR_GETFLAGS(P)NAME
posix_spawnattr_getflags, posix_spawnattr_setflags - get and set the
spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
SYNOPSIS
#include <spawn.h>
int posix_spawnattr_getflags(const posix_spawnattr_t *restrict attr,
short *restrict flags);
int posix_spawnattr_setflags(posix_spawnattr_t *attr, short flags);
DESCRIPTION
The posix_spawnattr_getflags() function shall obtain the value of the
spawn-flags attribute from the attributes object referenced by attr.
The posix_spawnattr_setflags() function shall set the spawn-flags
attribute in an initialized attributes object referenced by attr.
The spawn-flags attribute is used to indicate which process attributes
are to be changed in the new process image when invoking posix_spawn()
or posix_spawnp(). It is the bitwise-inclusive OR of zero or more of
the following flags:
POSIX_SPAWN_RESETIDS
POSIX_SPAWN_SETPGROUP
POSIX_SPAWN_SETSIGDEF
POSIX_SPAWN_SETSIGMASK
POSIX_SPAWN_SETSCHEDPARAM
POSIX_SPAWN_SETSCHEDULER
These flags are defined in <spawn.h>. The default value of this
attribute shall be as if no flags were set.
RETURN VALUE
Upon successful completion, posix_spawnattr_getflags() shall return
zero and store the value of the spawn-flags attribute of attr into the
object referenced by the flags parameter; otherwise, an error number
shall be returned to indicate the error.
Upon successful completion, posix_spawnattr_setflags() 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_setflags() 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 ALSOposix_spawn() , posix_spawnattr_destroy() , posix_spawnattr_init() ,
posix_spawnattr_getsigdefault() , posix_spawnattr_getpgroup() ,
posix_spawnattr_getschedparam() , posix_spawnattr_getschedpolicy() ,
posix_spawnattr_getsigmask() , posix_spawnattr_setsigdefault() ,
posix_spawnattr_setpgroup() , posix_spawnattr_setschedparam() ,
posix_spawnattr_setschedpolicy() , posix_spawnattr_setsigmask() ,
posix_spawnp() , the Base Definitions volume of IEEE Std 1003.1-2001,
<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 .
IEEE/The Open Group 2003 POSIX_SPAWNATTR_GETFLAGS(P)
