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 #ifdef WIN32_LEAN_AND_MEAN
42     #include <winsock2.h>
43 #else
44     #include <winsock.h>
45 #endif /* WIN32_LEAN_AND_MEAN */
46 
47 #include <windows.h>
48 
49 /* FreeRTOS includes. */
50 #include "FreeRTOS.h"
51 
52 #if configGENERATE_RUN_TIME_STATS == 1
53 
54 /* Time at start of day (in ns). */
55     static LARGE_INTEGER lStartTime;
56 
57 /*-----------------------------------------------------------*/
58 
vConfigureTimerForRunTimeStats(void)59     void vConfigureTimerForRunTimeStats( void )
60     {
61         ( void ) QueryPerformanceCounter( &lStartTime );
62     }
63 /*-----------------------------------------------------------*/
64 
ulGetRunTimeCounterValue(void)65     unsigned long ulGetRunTimeCounterValue( void )
66     {
67         LARGE_INTEGER lCurrentTime;
68 
69         ( void ) QueryPerformanceCounter( &lCurrentTime );
70 
71         configASSERT( lCurrentTime.QuadPart > lStartTime.QuadPart );
72 
73         return ( unsigned long ) ( lCurrentTime.QuadPart - lStartTime.QuadPart );
74     }
75 /*-----------------------------------------------------------*/
76 #endif /* configGENERATE_RUN_TIME_STATS == 1 */
77