2 * FreeRTOS Kernel V10.3.0
3 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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:
12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
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.
22 * http://www.FreeRTOS.org
23 * http://aws.amazon.com/freertos
29 * Utility functions required to gather run time statistics. See:
30 * http://www.freertos.org/rtos-run-time-stats.html
32 * Note that this is a simulated port, where simulated time is a lot slower than
33 * real time, therefore the run time counter values have no real meaningful
36 * Also note that it is assumed this demo is going to be used for short periods
37 * of time only, and therefore timer overflows are not handled.
42 /* FreeRTOS includes. */
45 /* Time at start of day (in ns). */
46 static unsigned long ulStartTimeNs;
48 /*-----------------------------------------------------------*/
50 void vConfigureTimerForRunTimeStats( void )
54 clock_gettime(CLOCK_MONOTONIC, &xNow);
55 ulStartTimeNs = xNow.tv_sec * 1000000000ul + xNow.tv_nsec;
57 /*-----------------------------------------------------------*/
59 unsigned long ulGetRunTimeCounterValue( void )
64 clock_gettime(CLOCK_MONOTONIC, &xNow);
66 return xNow.tv_sec * 1000000000ul + xNow.tv_nsec - ulStartTimeNs;
68 /*-----------------------------------------------------------*/