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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_S...HEDPARAM(3P) POSIX Programmer's Manual POSIX_S...HEDPARAM(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_getschedparam, posix_spawnattr_setschedparam — get
and set the spawn-schedparam attribute of a spawn attributes
object (ADVANCED REALTIME)
#include <spawn.h>
#include <sched.h>
int posix_spawnattr_getschedparam(const posix_spawnattr_t
*restrict attr, struct sched_param *restrict schedparam);
int posix_spawnattr_setschedparam(posix_spawnattr_t *restrict attr,
const struct sched_param *restrict schedparam);
The posix_spawnattr_getschedparam() function shall obtain the
value of the spawn-schedparam attribute from the attributes object
referenced by attr.
The posix_spawnattr_setschedparam() function shall set the spawn-
schedparam attribute in an initialized attributes object
referenced by attr.
The spawn-schedparam attribute represents the scheduling
parameters to be assigned to the new process image in a spawn
operation (if POSIX_SPAWN_SETSCHEDULER or
POSIX_SPAWN_SETSCHEDPARAM is set in the spawn-flags attribute).
The default value of this attribute is unspecified.
Upon successful completion, posix_spawnattr_getschedparam() shall
return zero and store the value of the spawn-schedparam attribute
of attr into the object referenced by the schedparam parameter;
otherwise, an error number shall be returned to indicate the
error.
Upon successful completion, posix_spawnattr_setschedparam() 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_setschedparam() 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_getschedpolicy(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_S...HEDPARAM(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_getschedpolicy(3p), posix_spawnattr_getsigdefault(3p), posix_spawnattr_getsigmask(3p), posix_spawnattr_setschedparam(3p)
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HTML rendering created 2025-09-06 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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