Originální popis anglicky:
sched_getparam - get scheduling parameters (
REALTIME)
Návod, kniha: POSIX Programmer's Manual
#include <sched.h>
int sched_getparam(pid_t
pid, struct sched_param
*param);
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.
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.
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.
None.
None.
None.
None.
sched_getscheduler() ,
sched_setparam() ,
sched_setscheduler() , the Base Definitions volume of
IEEE Std 1003.1-2001,
<sched.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- 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
.
