1 /**************************************************************************/ 2 /* */ 3 /* Copyright (c) Microsoft Corporation. All rights reserved. */ 4 /* */ 5 /* This software is licensed under the Microsoft Software License */ 6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */ 7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ 8 /* and in the root directory of this software. */ 9 /* */ 10 /**************************************************************************/ 11 12 13 /**************************************************************************/ 14 /**************************************************************************/ 15 /** */ 16 /** ThreadX Component */ 17 /** */ 18 /** Event Flags */ 19 /** */ 20 /**************************************************************************/ 21 /**************************************************************************/ 22 23 #define TX_SOURCE_CODE 24 25 26 /* Include necessary system files. */ 27 28 #include "tx_api.h" 29 #include "tx_event_flags.h" 30 31 32 #ifndef TX_INLINE_INITIALIZATION 33 34 /* Locate event flags component data in this file. */ 35 /* Define the head pointer of the created event flags list. */ 36 37 TX_EVENT_FLAGS_GROUP * _tx_event_flags_created_ptr; 38 39 40 /* Define the variable that holds the number of created event flag groups. */ 41 42 ULONG _tx_event_flags_created_count; 43 44 45 #ifdef TX_EVENT_FLAGS_ENABLE_PERFORMANCE_INFO 46 47 /* Define the total number of event flag sets. */ 48 49 ULONG _tx_event_flags_performance_set_count; 50 51 52 /* Define the total number of event flag gets. */ 53 54 ULONG _tx_event_flags_performance_get_count; 55 56 57 /* Define the total number of event flag suspensions. */ 58 59 ULONG _tx_event_flags_performance_suspension_count; 60 61 62 /* Define the total number of event flag timeouts. */ 63 64 ULONG _tx_event_flags_performance_timeout_count; 65 66 67 #endif 68 69 70 71 /**************************************************************************/ 72 /* */ 73 /* FUNCTION RELEASE */ 74 /* */ 75 /* _tx_event_flags_initialize PORTABLE C */ 76 /* 6.1 */ 77 /* AUTHOR */ 78 /* */ 79 /* William E. Lamie, Microsoft Corporation */ 80 /* */ 81 /* DESCRIPTION */ 82 /* */ 83 /* This function initializes the various control data structures for */ 84 /* the event flags component. */ 85 /* */ 86 /* INPUT */ 87 /* */ 88 /* None */ 89 /* */ 90 /* OUTPUT */ 91 /* */ 92 /* None */ 93 /* */ 94 /* CALLS */ 95 /* */ 96 /* None */ 97 /* */ 98 /* CALLED BY */ 99 /* */ 100 /* _tx_initialize_high_level High level initialization */ 101 /* */ 102 /* RELEASE HISTORY */ 103 /* */ 104 /* DATE NAME DESCRIPTION */ 105 /* */ 106 /* 05-19-2020 William E. Lamie Initial Version 6.0 */ 107 /* 09-30-2020 Yuxin Zhou Modified comment(s), */ 108 /* opt out of function when */ 109 /* TX_INLINE_INITIALIZATION is */ 110 /* defined, */ 111 /* resulting in version 6.1 */ 112 /* */ 113 /**************************************************************************/ _tx_event_flags_initialize(VOID)114VOID _tx_event_flags_initialize(VOID) 115 { 116 117 #ifndef TX_DISABLE_REDUNDANT_CLEARING 118 119 /* Initialize the head pointer of the created event flags list and the 120 number of event flags created. */ 121 _tx_event_flags_created_ptr = TX_NULL; 122 _tx_event_flags_created_count = TX_EMPTY; 123 124 #ifdef TX_EVENT_FLAGS_ENABLE_PERFORMANCE_INFO 125 126 /* Initialize event flags performance counters. */ 127 _tx_event_flags_performance_set_count = ((ULONG) 0); 128 _tx_event_flags_performance_get_count = ((ULONG) 0); 129 _tx_event_flags_performance_suspension_count = ((ULONG) 0); 130 _tx_event_flags_performance_timeout_count = ((ULONG) 0); 131 #endif 132 #endif 133 } 134 #endif 135
