80 lines
3.1 KiB
C
80 lines
3.1 KiB
C
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/*-*- Mode: C; c-basic-offset: 8 -*-*/
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#ifndef foortkithfoo
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#define foortkithfoo
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/***
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Copyright 2009 Lennart Poettering
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Copyright 2010 David Henningsson <diwic@ubuntu.com>
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation files
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(the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of the Software,
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and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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***/
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#include <sys/types.h>
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#include <dbus/dbus.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* This is the reference implementation for a client for
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* RealtimeKit. You don't have to use this, but if do, just copy these
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* sources into your repository */
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#define RTKIT_SERVICE_NAME "org.freedesktop.RealtimeKit1"
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#define RTKIT_OBJECT_PATH "/org/freedesktop/RealtimeKit1"
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/* This is mostly equivalent to sched_setparam(thread, SCHED_RR, {
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* .sched_priority = priority }). 'thread' needs to be a kernel thread
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* id as returned by gettid(), not a pthread_t! If 'thread' is 0 the
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* current thread is used. The returned value is a negative errno
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* style error code, or 0 on success. */
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int rtkit_make_realtime(DBusConnection *system_bus, pid_t thread, int priority);
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/* This is mostly equivalent to setpriority(PRIO_PROCESS, thread,
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* nice_level). 'thread' needs to be a kernel thread id as returned by
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* gettid(), not a pthread_t! If 'thread' is 0 the current thread is
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* used. The returned value is a negative errno style error code, or 0
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* on success.*/
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int rtkit_make_high_priority(DBusConnection *system_bus, pid_t thread, int nice_level);
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/* Return the maximum value of realtime priority available. Realtime requests
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* above this value will fail. A negative value is an errno style error code.
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*/
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int rtkit_get_max_realtime_priority(DBusConnection *system_bus);
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/* Retreive the minimum value of nice level available. High prio requests
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* below this value will fail. The returned value is a negative errno
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* style error code, or 0 on success.*/
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int rtkit_get_min_nice_level(DBusConnection *system_bus, int* min_nice_level);
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/* Return the maximum value of RLIMIT_RTTIME to set before attempting a
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* realtime request. A negative value is an errno style error code.
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*/
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long long rtkit_get_rttime_usec_max(DBusConnection *system_bus);
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#ifdef __cplusplus
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}
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#endif
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#endif
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