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PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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POSIX_SP...EDPOLICY(3P) POSIX Programmer's ManualPOSIX_SP...EDPOLICY(3P)
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.
posix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy —
get and set the spawn-schedpolicy attribute of a spawn attributes
object (ADVANCED REALTIME)
#include <spawn.h>
#include <sched.h>
int posix_spawnattr_getschedpolicy(const posix_spawnattr_t
*restrict attr, int *restrict schedpolicy);
int posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr,
int schedpolicy);
The posix_spawnattr_getschedpolicy() function shall obtain the
value of the spawn-schedpolicy attribute from the attributes
object referenced by attr.
The posix_spawnattr_setschedpolicy() function shall set the
spawn-schedpolicy attribute in an initialized attributes object
referenced by attr.
The spawn-schedpolicy attribute represents the scheduling policy
to be assigned to the new process image in a spawn operation (if
POSIX_SPAWN_SETSCHEDULER is set in the spawn-flags attribute).
The default value of this attribute is unspecified.
Upon successful completion, posix_spawnattr_getschedpolicy()
shall return zero and store the value of the spawn-schedpolicy
attribute of attr into the object referenced by the schedpolicy
parameter; otherwise, an error number shall be returned to
indicate the error.
Upon successful completion, posix_spawnattr_setschedpolicy()
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_setschedpolicy() 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 and Process Scheduling
options and need not be provided on all implementations.
None.
None.
posix_spawn(3p), posix_spawnattr_destroy(3p),
posix_spawnattr_getsigdefault(3p), posix_spawnattr_getflags(3p),
posix_spawnattr_getpgroup(3p), posix_spawnattr_getschedparam(3p),
posix_spawnattr_getsigmask(3p)
The Base Definitions volume of POSIX.1‐2017, sched.h(0p),
spawn.h(0p)
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 .
IEEE/The Open Group 2017 POSIX_SP...EDPOLICY(3P)
Pages that refer to this page: spawn.h(0p), posix_spawn(3p), posix_spawnattr_destroy(3p), posix_spawnattr_getflags(3p), posix_spawnattr_getpgroup(3p), posix_spawnattr_getschedparam(3p), posix_spawnattr_getsigdefault(3p), posix_spawnattr_getsigmask(3p), posix_spawnattr_setschedpolicy(3p)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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