Originální popis anglicky:
posix_spawnattr_getpgroup, posix_spawnattr_setpgroup - get and set the
spawn-pgroup attribute of a spawn attributes object (
ADVANCED
REALTIME)
Návod, kniha: POSIX Programmer's Manual
#include <spawn.h>
int posix_spawnattr_getpgroup(const posix_spawnattr_t *restrict
attr,
pid_t *restrict
pgroup );
int posix_spawnattr_setpgroup(posix_spawnattr_t *
attr, pid_t
pgroup);
The
posix_spawnattr_getpgroup() function shall obtain the value of the
spawn-pgroup attribute from the attributes object referenced by
attr.
The
posix_spawnattr_setpgroup() function shall set the
spawn-pgroup attribute in an initialized attributes object referenced
by
attr.
The
spawn-pgroup attribute represents the process group to be joined by
the new process image in a spawn operation (if POSIX_SPAWN_SETPGROUP is set in
the
spawn-flags attribute). The default value of this attribute shall
be zero.
Upon successful completion,
posix_spawnattr_getpgroup() shall return zero
and store the value of the
spawn-pgroup attribute of
attr into
the object referenced by the
pgroup parameter; otherwise, an error
number shall be returned to indicate the error.
Upon successful completion,
posix_spawnattr_setpgroup() shall return
zero; otherwise, an error number shall be returned to indicate the error.
These functions may fail if:
- EINVAL
- The value specified by attr is invalid.
The
posix_spawnattr_setpgroup() function may fail if:
- EINVAL
- The value of the attribute being set is not valid.
The following sections are informative.
None.
These functions are part of the Spawn option and need not be provided on all
implementations.
None.
None.
posix_spawn() ,
posix_spawnattr_destroy() ,
posix_spawnattr_init() ,
posix_spawnattr_getsigdefault() ,
posix_spawnattr_getflags() ,
posix_spawnattr_getschedparam() ,
posix_spawnattr_getschedpolicy() ,
posix_spawnattr_getsigmask()
,
posix_spawnattr_setsigdefault() ,
posix_spawnattr_setflags() ,
posix_spawnattr_setschedparam() ,
posix_spawnattr_setschedpolicy() ,
posix_spawnattr_setsigmask()
,
posix_spawnp() , the Base Definitions volume of
IEEE Std 1003.1-2001,
<spawn.h>
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
.
