centos man page for posix_spawnattr_setschedpolicy

POSIX_SPAWNATTR_GETSCHEDPOLICY(3P)			     POSIX Programmer's Manual				POSIX_SPAWNATTR_GETSCHEDPOLICY(3P)

PROLOG
       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME
       posix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy - get and set the spawn-schedpolicy attribute of a spawn	attributes  object
       (ADVANCED REALTIME)

SYNOPSIS
       #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);

DESCRIPTION
       The  posix_spawnattr_getschedpolicy()  function shall obtain the value of the spawn-schedpolicy attribute from the attributes object refer-
       enced 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.

RETURN VALUE
       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.

ERRORS
       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.

EXAMPLES
       None.

APPLICATION USAGE
       These functions are part of the Spawn and Process Scheduling options 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_getflags(),  posix_spaw-
       nattr_getpgroup(),  posix_spawnattr_getschedparam(),  posix_spawnattr_getsigmask(),  posix_spawnattr_setsigdefault(),  posix_spawnattr_set-
       flags(), posix_spawnattr_setpgroup(), posix_spawnattr_setschedparam(), posix_spawnattr_setsigmask(), posix_spawnp(), the  Base  Definitions
       volume of IEEE Std 1003.1-2001, <sched.h>, <spawn.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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 .

IEEE
/The Open Group						       2003					POSIX_SPAWNATTR_GETSCHEDPOLICY(3P)