Originální popis anglicky:
sched_getscheduler - get scheduling policy (
REALTIME)
Návod, kniha: POSIX Programmer's Manual
#include <sched.h>
int sched_getscheduler(pid_t
pid);
The
sched_getscheduler() function shall return the scheduling policy of
the process specified by
pid. If the value of
pid is negative,
the behavior of the
sched_getscheduler() function is unspecified.
The values that can be returned by
sched_getscheduler() are defined in
the
<sched.h> header.
If a process specified by
pid exists, and if the calling process has
permission, the scheduling policy shall be returned for the process whose
process ID is equal to
pid.
If
pid is zero, the scheduling policy shall be returned for the calling
process.
Upon successful completion, the
sched_getscheduler() function shall
return the scheduling policy of the specified process. If unsuccessful, the
function shall return -1 and set
errno to indicate the error.
The
sched_getscheduler() function shall fail if:
- EPERM
- The requesting process does not have permission to
determine the scheduling policy 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_getparam() ,
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
.
