2016-10-28 16:56:33 +02:00
|
|
|
/* Pinos
|
|
|
|
|
* Copyright (C) 2015 Wim Taymans <wim.taymans@gmail.com>
|
|
|
|
|
*
|
|
|
|
|
* This library is free software; you can redistribute it and/or
|
|
|
|
|
* modify it under the terms of the GNU Library General Public
|
|
|
|
|
* License as published by the Free Software Foundation; either
|
|
|
|
|
* version 2 of the License, or (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* This library is distributed in the hope that it will be useful,
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
|
* Library General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* You should have received a copy of the GNU Library General Public
|
|
|
|
|
* License along with this library; if not, write to the
|
|
|
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
|
|
|
* Boston, MA 02110-1301, USA.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef __PINOS_RTKIT_H__
|
|
|
|
|
#define __PINOS_RTKIT_H__
|
|
|
|
|
|
2016-11-08 18:00:52 +01:00
|
|
|
#include <sys/types.h>
|
|
|
|
|
#include <unistd.h>
|
2016-10-28 16:56:33 +02:00
|
|
|
|
2016-11-08 18:00:52 +01:00
|
|
|
#ifdef __cplusplus
|
|
|
|
|
extern "C" {
|
|
|
|
|
#endif
|
2016-10-28 16:56:33 +02:00
|
|
|
|
|
|
|
|
#define RTKIT_SERVICE_NAME "org.freedesktop.RealtimeKit1"
|
|
|
|
|
#define RTKIT_OBJECT_PATH "/org/freedesktop/RealtimeKit1"
|
|
|
|
|
|
2016-11-08 18:00:52 +01:00
|
|
|
typedef struct _PinosRTKitBus PinosRTKitBus;
|
|
|
|
|
|
|
|
|
|
PinosRTKitBus * pinos_rtkit_bus_get_system (void);
|
|
|
|
|
void pinos_rtkit_bus_free (PinosRTKitBus *system_bus);
|
|
|
|
|
|
|
|
|
|
|
2016-10-28 16:56:33 +02:00
|
|
|
/* This is mostly equivalent to sched_setparam(thread, SCHED_RR, {
|
|
|
|
|
* .sched_priority = priority }). 'thread' needs to be a kernel thread
|
|
|
|
|
* id as returned by gettid(), not a pthread_t! If 'thread' is 0 the
|
2016-11-08 18:00:52 +01:00
|
|
|
* current thread is used. The returned value is a negative errno
|
|
|
|
|
* style error code, or 0 on success. */
|
|
|
|
|
int pinos_rtkit_make_realtime (PinosRTKitBus *system_bus,
|
|
|
|
|
pid_t thread,
|
|
|
|
|
int priority);
|
2016-10-28 16:56:33 +02:00
|
|
|
|
|
|
|
|
|
|
|
|
|
/* This is mostly equivalent to setpriority(PRIO_PROCESS, thread,
|
|
|
|
|
* nice_level). 'thread' needs to be a kernel thread id as returned by
|
|
|
|
|
* gettid(), not a pthread_t! If 'thread' is 0 the current thread is
|
2016-11-08 18:00:52 +01:00
|
|
|
* used. The returned value is a negative errno style error code, or
|
|
|
|
|
* 0 on success. */
|
|
|
|
|
int pinos_rtkit_make_high_priority (PinosRTKitBus *system_bus,
|
|
|
|
|
pid_t thread,
|
|
|
|
|
int nice_level);
|
2016-10-28 16:56:33 +02:00
|
|
|
|
|
|
|
|
/* Return the maximum value of realtime priority available. Realtime requests
|
|
|
|
|
* above this value will fail. A negative value is an errno style error code.
|
|
|
|
|
*/
|
2016-11-08 18:00:52 +01:00
|
|
|
int pinos_rtkit_get_max_realtime_priority (PinosRTKitBus *system_bus);
|
2016-10-28 16:56:33 +02:00
|
|
|
|
|
|
|
|
/* Retreive the minimum value of nice level available. High prio requests
|
|
|
|
|
* below this value will fail. The returned value is a negative errno
|
|
|
|
|
* style error code, or 0 on success.*/
|
2016-11-08 18:00:52 +01:00
|
|
|
int pinos_rtkit_get_min_nice_level (PinosRTKitBus *system_bus,
|
|
|
|
|
int *min_nice_level);
|
2016-10-28 16:56:33 +02:00
|
|
|
|
|
|
|
|
/* Return the maximum value of RLIMIT_RTTIME to set before attempting a
|
|
|
|
|
* realtime request. A negative value is an errno style error code.
|
|
|
|
|
*/
|
2016-11-08 18:00:52 +01:00
|
|
|
long long pinos_rtkit_get_rttime_usec_max (PinosRTKitBus *system_bus);
|
2016-10-28 16:56:33 +02:00
|
|
|
|
2016-11-08 18:00:52 +01:00
|
|
|
#ifdef __cplusplus
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2016-10-28 16:56:33 +02:00
|
|
|
|
|
|
|
|
#endif /* __PINOS_RTKIT_H__ */
|