1 /*
2 * FreeRTOS V202212.00
3 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
6 * this software and associated documentation files (the "Software"), to deal in
7 * the Software without restriction, including without limitation the rights to
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * https://www.FreeRTOS.org
23 * https://github.com/FreeRTOS
24 *
25 */
26
27 /*
28 * Utility functions required to gather run time statistics. See:
29 * https://www.FreeRTOS.org/rtos-run-time-stats.html
30 *
31 * Note that this is a simulated port, where simulated time is a lot slower than
32 * real time, therefore the run time counter values have no real meaningful
33 * units.
34 *
35 * Also note that it is assumed this demo is going to be used for short periods
36 * of time only, and therefore timer overflows are not handled.
37 */
38
39 #include <time.h>
40
41 /* FreeRTOS includes. */
42 #include <FreeRTOS.h>
43
44 /* Time at start of day (in ns). */
45 static unsigned long ulStartTimeNs;
46
47 /*-----------------------------------------------------------*/
48
vConfigureTimerForRunTimeStats(void)49 void vConfigureTimerForRunTimeStats( void )
50 {
51 struct timespec xNow;
52
53 clock_gettime( CLOCK_MONOTONIC, &xNow );
54 ulStartTimeNs = xNow.tv_sec * 1000000000ul + xNow.tv_nsec;
55 }
56 /*-----------------------------------------------------------*/
57
ulGetRunTimeCounterValue(void)58 unsigned long ulGetRunTimeCounterValue( void )
59 {
60 struct timespec xNow;
61
62 /* Time at start. */
63 clock_gettime( CLOCK_MONOTONIC, &xNow );
64
65 return xNow.tv_sec * 1000000000ul + xNow.tv_nsec - ulStartTimeNs;
66 }
67 /*-----------------------------------------------------------*/
68