получить параметры расписания (РЕАЛЬНОЕ ВРЕМЯ) (get scheduling parameters (REALTIME))
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.
Имя (Name)
sched_getparam — get scheduling parameters (REALTIME)
Синопсис (Synopsis)
#include <sched.h>
int sched_getparam(pid_t pid, struct sched_param *param);
Описание (Description)
The sched_getparam() function shall return the scheduling
parameters of a process specified by pid in the sched_param
structure pointed to by param.
If a process specified by pid exists, and if the calling process
has permission, the scheduling parameters for the process whose
process ID is equal to pid shall be returned.
If pid is zero, the scheduling parameters for the calling process
shall be returned. The behavior of the sched_getparam() function
is unspecified if the value of pid is negative.
Возвращаемое значение (Return value)
Upon successful completion, the sched_getparam() function shall
return zero. If the call to sched_getparam() is unsuccessful, the
function shall return a value of -1 and set errno to indicate the
error.
Ошибки (Error)
The sched_getparam() function shall fail if:
EPERM The requesting process does not have permission to obtain
the scheduling parameters of the specified process.
ESRCH No process can be found corresponding to that specified by
pid.
The following sections are informative.
Примеры (Examples)
None.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
sched_getscheduler(3p), sched_setparam(3p),
sched_setscheduler(3p)
The Base Definitions volume of POSIX.1‐2017, sched.h(0p)
