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   posix_spawnattr_getschedpolicy.3p    ( 3 )

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Пролог (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.

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Имя (Name)

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

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Синопсис (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);

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Описание (Description)

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.

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Возвращаемое значение (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.

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Ошибки (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.

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Примеры (Examples)

None.

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Использование в приложениях (Application usage)

These functions are part of the Spawn and Process Scheduling
       options and need not be provided on all implementations.

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Обоснование (Rationale)

None.

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Будущие направления (Future directions)

None.

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Смотри также (See also)

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)

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