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POSIX_SPAWNATTR_GETFLAGS
Section: POSIX Programmer's Manual (3P)
Updated: 2003
Index
Return to Main Contents
PROLOG
This manual page is part of the POSIX Programmer's Manual.
The Linux implementation of this interface may differ (consult
the corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
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 ALSO
posix_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 .
Index
- PROLOG
-
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- EXAMPLES
-
- APPLICATION USAGE
-
- RATIONALE
-
- FUTURE DIRECTIONS
-
- SEE ALSO
-
- COPYRIGHT
-
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