mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 12:09:58 +00:00
90ce6e2644
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. NB: If this commit breaks compilation for your out-of-tree patchseries or fork, then you need to make sure you add #include "qemu/osdep.h" to any new .c files that you have. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com>
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
|
|
* QEMU timed average computation
|
|
*
|
|
* Copyright (C) Nodalink, EURL. 2014
|
|
* Copyright (C) Igalia, S.L. 2015
|
|
*
|
|
* Authors:
|
|
* Benoît Canet <benoit.canet@nodalink.com>
|
|
* Alberto Garcia <berto@igalia.com>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) version 3 or any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef TIMED_AVERAGE_H
|
|
#define TIMED_AVERAGE_H
|
|
|
|
|
|
#include "qemu/timer.h"
|
|
|
|
typedef struct TimedAverageWindow TimedAverageWindow;
|
|
typedef struct TimedAverage TimedAverage;
|
|
|
|
/* All fields of both structures are private */
|
|
|
|
struct TimedAverageWindow {
|
|
uint64_t min; /* minimum value accounted in the window */
|
|
uint64_t max; /* maximum value accounted in the window */
|
|
uint64_t sum; /* sum of all values */
|
|
uint64_t count; /* number of values */
|
|
int64_t expiration; /* the end of the current window in ns */
|
|
};
|
|
|
|
struct TimedAverage {
|
|
uint64_t period; /* period in nanoseconds */
|
|
TimedAverageWindow windows[2]; /* two overlapping windows of with
|
|
* an offset of period / 2 between them */
|
|
unsigned current; /* the current window index: it's also the
|
|
* oldest window index */
|
|
QEMUClockType clock_type; /* the clock used */
|
|
};
|
|
|
|
void timed_average_init(TimedAverage *ta, QEMUClockType clock_type,
|
|
uint64_t period);
|
|
|
|
void timed_average_account(TimedAverage *ta, uint64_t value);
|
|
|
|
uint64_t timed_average_min(TimedAverage *ta);
|
|
uint64_t timed_average_avg(TimedAverage *ta);
|
|
uint64_t timed_average_max(TimedAverage *ta);
|
|
uint64_t timed_average_sum(TimedAverage *ta, uint64_t *elapsed);
|
|
|
|
#endif
|