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   posix_spawnattr_getschedparam.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_getschedparam, posix_spawnattr_setschedparam —
       get and set the spawn-schedparam attribute of a spawn attributes
       object (ADVANCED REALTIME)

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Синопсис (Synopsis)

#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);

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Описание (Description)

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.

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Возвращаемое значение (Return value)

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.

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Ошибки (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.

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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_getschedpolicy(3p),
       posix_spawnattr_getsigmask(3p)

       The Base Definitions volume of POSIX.1‐2017, sched.h(0p),
       spawn.h(0p)

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