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_getpgroup, posix_spawnattr_setpgroup — get and set the spawn-pgroup attribute of a spawn attributes object (ADVANCED REALTIME)

SYNOPSIS¶

#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);

DESCRIPTION¶

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.

RETURN VALUE¶

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.

ERRORS¶

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.

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_getsigdefault(), posix_spawnattr_getflags(), posix_spawnattr_getschedparam(), posix_spawnattr_getschedpolicy(), posix_spawnattr_getsigmask()

The Base Definitions volume of POSIX.1‐2017, <spawn.h>

COPYRIGHT¶

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 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 .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .