Julian Higginson / Mbed 2 deprecated FXOS8700CQ_To_Azure_IoT

WIP. send a large constant string twice a second, in order to test out the transport with something indicative of our required load.

Dependencies:   FXOS8700CQ NTPClient azure_umqtt_c iothub_mqtt_transport mbed-rtos mbed wolfSSL Socket lwip-eth lwip-sys lwip

Fork of FXOS8700CQ_To_Azure_IoT by Mark Radbourne

azure_c_shared_utility/singlylinkedlist.c@3:c0556ff7b8e3, 2016-12-08 (annotated)

Committer:
markrad
Date:
Thu Dec 08 00:11:40 2016 +0000
Revision:
3:c0556ff7b8e3
Hack the code to get restart working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
markrad 3:c0556ff7b8e3 1 // Copyright (c) Microsoft. All rights reserved.
markrad 3:c0556ff7b8e3 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
markrad 3:c0556ff7b8e3 3
markrad 3:c0556ff7b8e3 4 #include <stdlib.h>
markrad 3:c0556ff7b8e3 5 #ifdef _CRTDBG_MAP_ALLOC
markrad 3:c0556ff7b8e3 6 #include <crtdbg.h>
markrad 3:c0556ff7b8e3 7 #endif
markrad 3:c0556ff7b8e3 8 #include <stdbool.h>
markrad 3:c0556ff7b8e3 9
markrad 3:c0556ff7b8e3 10 #include "azure_c_shared_utility/gballoc.h"
markrad 3:c0556ff7b8e3 11 #include "azure_c_shared_utility/singlylinkedlist.h"
markrad 3:c0556ff7b8e3 12
markrad 3:c0556ff7b8e3 13 typedef struct LIST_ITEM_INSTANCE_TAG
markrad 3:c0556ff7b8e3 14 {
markrad 3:c0556ff7b8e3 15 const void* item;
markrad 3:c0556ff7b8e3 16 void* next;
markrad 3:c0556ff7b8e3 17 } LIST_ITEM_INSTANCE;
markrad 3:c0556ff7b8e3 18
markrad 3:c0556ff7b8e3 19 typedef struct SINGLYLINKEDLIST_INSTANCE_TAG
markrad 3:c0556ff7b8e3 20 {
markrad 3:c0556ff7b8e3 21 LIST_ITEM_INSTANCE* head;
markrad 3:c0556ff7b8e3 22 } LIST_INSTANCE;
markrad 3:c0556ff7b8e3 23
markrad 3:c0556ff7b8e3 24 SINGLYLINKEDLIST_HANDLE singlylinkedlist_create(void)
markrad 3:c0556ff7b8e3 25 {
markrad 3:c0556ff7b8e3 26 LIST_INSTANCE* result;
markrad 3:c0556ff7b8e3 27
markrad 3:c0556ff7b8e3 28 /* Codes_SRS_LIST_01_001: [singlylinkedlist_create shall create a new list and return a non-NULL handle on success.] */
markrad 3:c0556ff7b8e3 29 result = (LIST_INSTANCE*)malloc(sizeof(LIST_INSTANCE));
markrad 3:c0556ff7b8e3 30 if (result != NULL)
markrad 3:c0556ff7b8e3 31 {
markrad 3:c0556ff7b8e3 32 /* Codes_SRS_LIST_01_002: [If any error occurs during the list creation, singlylinkedlist_create shall return NULL.] */
markrad 3:c0556ff7b8e3 33 result->head = NULL;
markrad 3:c0556ff7b8e3 34 }
markrad 3:c0556ff7b8e3 35
markrad 3:c0556ff7b8e3 36 return result;
markrad 3:c0556ff7b8e3 37 }
markrad 3:c0556ff7b8e3 38
markrad 3:c0556ff7b8e3 39 void singlylinkedlist_destroy(SINGLYLINKEDLIST_HANDLE list)
markrad 3:c0556ff7b8e3 40 {
markrad 3:c0556ff7b8e3 41 /* Codes_SRS_LIST_01_004: [If the list argument is NULL, no freeing of resources shall occur.] */
markrad 3:c0556ff7b8e3 42 if (list != NULL)
markrad 3:c0556ff7b8e3 43 {
markrad 3:c0556ff7b8e3 44 LIST_INSTANCE* list_instance = (LIST_INSTANCE*)list;
markrad 3:c0556ff7b8e3 45
markrad 3:c0556ff7b8e3 46 while (list_instance->head != NULL)
markrad 3:c0556ff7b8e3 47 {
markrad 3:c0556ff7b8e3 48 LIST_ITEM_INSTANCE* current_item = list_instance->head;
markrad 3:c0556ff7b8e3 49 list_instance->head = (LIST_ITEM_INSTANCE*)current_item->next;
markrad 3:c0556ff7b8e3 50 free(current_item);
markrad 3:c0556ff7b8e3 51 }
markrad 3:c0556ff7b8e3 52
markrad 3:c0556ff7b8e3 53 /* Codes_SRS_LIST_01_003: [singlylinkedlist_destroy shall free all resources associated with the list identified by the handle argument.] */
markrad 3:c0556ff7b8e3 54 free(list_instance);
markrad 3:c0556ff7b8e3 55 }
markrad 3:c0556ff7b8e3 56 }
markrad 3:c0556ff7b8e3 57
markrad 3:c0556ff7b8e3 58 LIST_ITEM_HANDLE singlylinkedlist_add(SINGLYLINKEDLIST_HANDLE list, const void* item)
markrad 3:c0556ff7b8e3 59 {
markrad 3:c0556ff7b8e3 60 LIST_ITEM_INSTANCE* result;
markrad 3:c0556ff7b8e3 61
markrad 3:c0556ff7b8e3 62 /* Codes_SRS_LIST_01_006: [If any of the arguments is NULL, singlylinkedlist_add shall not add the item to the list and return NULL.] */
markrad 3:c0556ff7b8e3 63 if ((list == NULL) ||
markrad 3:c0556ff7b8e3 64 (item == NULL))
markrad 3:c0556ff7b8e3 65 {
markrad 3:c0556ff7b8e3 66 result = NULL;
markrad 3:c0556ff7b8e3 67 }
markrad 3:c0556ff7b8e3 68 else
markrad 3:c0556ff7b8e3 69 {
markrad 3:c0556ff7b8e3 70 LIST_INSTANCE* list_instance = (LIST_INSTANCE*)list;
markrad 3:c0556ff7b8e3 71 result = (LIST_ITEM_INSTANCE*)malloc(sizeof(LIST_ITEM_INSTANCE));
markrad 3:c0556ff7b8e3 72
markrad 3:c0556ff7b8e3 73 if (result == NULL)
markrad 3:c0556ff7b8e3 74 {
markrad 3:c0556ff7b8e3 75 /* Codes_SRS_LIST_01_007: [If allocating the new list node fails, singlylinkedlist_add shall return NULL.] */
markrad 3:c0556ff7b8e3 76 result = NULL;
markrad 3:c0556ff7b8e3 77 }
markrad 3:c0556ff7b8e3 78 else
markrad 3:c0556ff7b8e3 79 {
markrad 3:c0556ff7b8e3 80 /* Codes_SRS_LIST_01_005: [singlylinkedlist_add shall add one item to the tail of the list and on success it shall return a handle to the added item.] */
markrad 3:c0556ff7b8e3 81 result->next = NULL;
markrad 3:c0556ff7b8e3 82 result->item = item;
markrad 3:c0556ff7b8e3 83
markrad 3:c0556ff7b8e3 84 if (list_instance->head == NULL)
markrad 3:c0556ff7b8e3 85 {
markrad 3:c0556ff7b8e3 86 list_instance->head = result;
markrad 3:c0556ff7b8e3 87 }
markrad 3:c0556ff7b8e3 88 else
markrad 3:c0556ff7b8e3 89 {
markrad 3:c0556ff7b8e3 90 LIST_ITEM_INSTANCE* current = list_instance->head;
markrad 3:c0556ff7b8e3 91 while (current->next != NULL)
markrad 3:c0556ff7b8e3 92 {
markrad 3:c0556ff7b8e3 93 current = (LIST_ITEM_INSTANCE*)current->next;
markrad 3:c0556ff7b8e3 94 }
markrad 3:c0556ff7b8e3 95
markrad 3:c0556ff7b8e3 96 current->next = result;
markrad 3:c0556ff7b8e3 97 }
markrad 3:c0556ff7b8e3 98 }
markrad 3:c0556ff7b8e3 99 }
markrad 3:c0556ff7b8e3 100
markrad 3:c0556ff7b8e3 101 return result;
markrad 3:c0556ff7b8e3 102 }
markrad 3:c0556ff7b8e3 103
markrad 3:c0556ff7b8e3 104 int singlylinkedlist_remove(SINGLYLINKEDLIST_HANDLE list, LIST_ITEM_HANDLE item)
markrad 3:c0556ff7b8e3 105 {
markrad 3:c0556ff7b8e3 106 int result;
markrad 3:c0556ff7b8e3 107
markrad 3:c0556ff7b8e3 108 /* Codes_SRS_LIST_01_024: [If any of the arguments list or item_handle is NULL, singlylinkedlist_remove shall fail and return a non-zero value.] */
markrad 3:c0556ff7b8e3 109 if ((list == NULL) ||
markrad 3:c0556ff7b8e3 110 (item == NULL))
markrad 3:c0556ff7b8e3 111 {
markrad 3:c0556ff7b8e3 112 result = __LINE__;
markrad 3:c0556ff7b8e3 113 }
markrad 3:c0556ff7b8e3 114 else
markrad 3:c0556ff7b8e3 115 {
markrad 3:c0556ff7b8e3 116 LIST_INSTANCE* list_instance = (LIST_INSTANCE*)list;
markrad 3:c0556ff7b8e3 117 LIST_ITEM_INSTANCE* current_item = list_instance->head;
markrad 3:c0556ff7b8e3 118 LIST_ITEM_INSTANCE* previous_item = NULL;
markrad 3:c0556ff7b8e3 119
markrad 3:c0556ff7b8e3 120 while (current_item != NULL)
markrad 3:c0556ff7b8e3 121 {
markrad 3:c0556ff7b8e3 122 if (current_item == item)
markrad 3:c0556ff7b8e3 123 {
markrad 3:c0556ff7b8e3 124 if (previous_item != NULL)
markrad 3:c0556ff7b8e3 125 {
markrad 3:c0556ff7b8e3 126 previous_item->next = current_item->next;
markrad 3:c0556ff7b8e3 127 }
markrad 3:c0556ff7b8e3 128 else
markrad 3:c0556ff7b8e3 129 {
markrad 3:c0556ff7b8e3 130 list_instance->head = (LIST_ITEM_INSTANCE*)current_item->next;
markrad 3:c0556ff7b8e3 131 }
markrad 3:c0556ff7b8e3 132
markrad 3:c0556ff7b8e3 133 free(current_item);
markrad 3:c0556ff7b8e3 134
markrad 3:c0556ff7b8e3 135 break;
markrad 3:c0556ff7b8e3 136 }
markrad 3:c0556ff7b8e3 137 previous_item = current_item;
markrad 3:c0556ff7b8e3 138 current_item = (LIST_ITEM_INSTANCE*)current_item->next;
markrad 3:c0556ff7b8e3 139 }
markrad 3:c0556ff7b8e3 140
markrad 3:c0556ff7b8e3 141 if (current_item == NULL)
markrad 3:c0556ff7b8e3 142 {
markrad 3:c0556ff7b8e3 143 /* Codes_SRS_LIST_01_025: [If the item item_handle is not found in the list, then singlylinkedlist_remove shall fail and return a non-zero value.] */
markrad 3:c0556ff7b8e3 144 result = __LINE__;
markrad 3:c0556ff7b8e3 145 }
markrad 3:c0556ff7b8e3 146 else
markrad 3:c0556ff7b8e3 147 {
markrad 3:c0556ff7b8e3 148 /* Codes_SRS_LIST_01_023: [singlylinkedlist_remove shall remove a list item from the list and on success it shall return 0.] */
markrad 3:c0556ff7b8e3 149 result = 0;
markrad 3:c0556ff7b8e3 150 }
markrad 3:c0556ff7b8e3 151 }
markrad 3:c0556ff7b8e3 152
markrad 3:c0556ff7b8e3 153 return result;
markrad 3:c0556ff7b8e3 154 }
markrad 3:c0556ff7b8e3 155
markrad 3:c0556ff7b8e3 156 LIST_ITEM_HANDLE singlylinkedlist_get_head_item(SINGLYLINKEDLIST_HANDLE list)
markrad 3:c0556ff7b8e3 157 {
markrad 3:c0556ff7b8e3 158 LIST_ITEM_HANDLE result;
markrad 3:c0556ff7b8e3 159
markrad 3:c0556ff7b8e3 160 if (list == NULL)
markrad 3:c0556ff7b8e3 161 {
markrad 3:c0556ff7b8e3 162 /* Codes_SRS_LIST_01_009: [If the list argument is NULL, singlylinkedlist_get_head_item shall return NULL.] */
markrad 3:c0556ff7b8e3 163 result = NULL;
markrad 3:c0556ff7b8e3 164 }
markrad 3:c0556ff7b8e3 165 else
markrad 3:c0556ff7b8e3 166 {
markrad 3:c0556ff7b8e3 167 LIST_INSTANCE* list_instance = (LIST_INSTANCE*)list;
markrad 3:c0556ff7b8e3 168
markrad 3:c0556ff7b8e3 169 /* Codes_SRS_LIST_01_008: [singlylinkedlist_get_head_item shall return the head of the list.] */
markrad 3:c0556ff7b8e3 170 /* Codes_SRS_LIST_01_010: [If the list is empty, singlylinkedlist_get_head_item_shall_return NULL.] */
markrad 3:c0556ff7b8e3 171 result = list_instance->head;
markrad 3:c0556ff7b8e3 172 }
markrad 3:c0556ff7b8e3 173
markrad 3:c0556ff7b8e3 174 return result;
markrad 3:c0556ff7b8e3 175 }
markrad 3:c0556ff7b8e3 176
markrad 3:c0556ff7b8e3 177 LIST_ITEM_HANDLE singlylinkedlist_get_next_item(LIST_ITEM_HANDLE item_handle)
markrad 3:c0556ff7b8e3 178 {
markrad 3:c0556ff7b8e3 179 LIST_ITEM_HANDLE result;
markrad 3:c0556ff7b8e3 180
markrad 3:c0556ff7b8e3 181 if (item_handle == NULL)
markrad 3:c0556ff7b8e3 182 {
markrad 3:c0556ff7b8e3 183 /* Codes_SRS_LIST_01_019: [If item_handle is NULL then singlylinkedlist_get_next_item shall return NULL.] */
markrad 3:c0556ff7b8e3 184 result = NULL;
markrad 3:c0556ff7b8e3 185 }
markrad 3:c0556ff7b8e3 186 else
markrad 3:c0556ff7b8e3 187 {
markrad 3:c0556ff7b8e3 188 /* Codes_SRS_LIST_01_018: [singlylinkedlist_get_next_item shall return the next item in the list following the item item_handle.] */
markrad 3:c0556ff7b8e3 189 result = (LIST_ITEM_HANDLE)((LIST_ITEM_INSTANCE*)item_handle)->next;
markrad 3:c0556ff7b8e3 190 }
markrad 3:c0556ff7b8e3 191
markrad 3:c0556ff7b8e3 192 return result;
markrad 3:c0556ff7b8e3 193 }
markrad 3:c0556ff7b8e3 194
markrad 3:c0556ff7b8e3 195 const void* singlylinkedlist_item_get_value(LIST_ITEM_HANDLE item_handle)
markrad 3:c0556ff7b8e3 196 {
markrad 3:c0556ff7b8e3 197 const void* result;
markrad 3:c0556ff7b8e3 198
markrad 3:c0556ff7b8e3 199 if (item_handle == NULL)
markrad 3:c0556ff7b8e3 200 {
markrad 3:c0556ff7b8e3 201 /* Codes_SRS_LIST_01_021: [If item_handle is NULL, singlylinkedlist_item_get_value shall return NULL.] */
markrad 3:c0556ff7b8e3 202 result = NULL;
markrad 3:c0556ff7b8e3 203 }
markrad 3:c0556ff7b8e3 204 else
markrad 3:c0556ff7b8e3 205 {
markrad 3:c0556ff7b8e3 206 /* Codes_SRS_LIST_01_020: [singlylinkedlist_item_get_value shall return the value associated with the list item identified by the item_handle argument.] */
markrad 3:c0556ff7b8e3 207 result = ((LIST_ITEM_INSTANCE*)item_handle)->item;
markrad 3:c0556ff7b8e3 208 }
markrad 3:c0556ff7b8e3 209
markrad 3:c0556ff7b8e3 210 return result;
markrad 3:c0556ff7b8e3 211 }
markrad 3:c0556ff7b8e3 212
markrad 3:c0556ff7b8e3 213 LIST_ITEM_HANDLE singlylinkedlist_find(SINGLYLINKEDLIST_HANDLE list, LIST_MATCH_FUNCTION match_function, const void* match_context)
markrad 3:c0556ff7b8e3 214 {
markrad 3:c0556ff7b8e3 215 LIST_ITEM_HANDLE result;
markrad 3:c0556ff7b8e3 216
markrad 3:c0556ff7b8e3 217 if ((list == NULL) ||
markrad 3:c0556ff7b8e3 218 (match_function == NULL))
markrad 3:c0556ff7b8e3 219 {
markrad 3:c0556ff7b8e3 220 /* Codes_SRS_LIST_01_012: [If the list or the match_function argument is NULL, singlylinkedlist_find shall return NULL.] */
markrad 3:c0556ff7b8e3 221 result = NULL;
markrad 3:c0556ff7b8e3 222 }
markrad 3:c0556ff7b8e3 223 else
markrad 3:c0556ff7b8e3 224 {
markrad 3:c0556ff7b8e3 225 LIST_INSTANCE* list_instance = (LIST_INSTANCE*)list;
markrad 3:c0556ff7b8e3 226 LIST_ITEM_INSTANCE* current = list_instance->head;
markrad 3:c0556ff7b8e3 227
markrad 3:c0556ff7b8e3 228 /* Codes_SRS_LIST_01_011: [singlylinkedlist_find shall iterate through all items in a list and return the first one that satisfies a certain match function.] */
markrad 3:c0556ff7b8e3 229 while (current != NULL)
markrad 3:c0556ff7b8e3 230 {
markrad 3:c0556ff7b8e3 231 /* Codes_SRS_LIST_01_014: [list find shall determine whether an item satisfies the match criteria by invoking the match function for each item in the list until a matching item is found.] */
markrad 3:c0556ff7b8e3 232 /* Codes_SRS_LIST_01_013: [The match_function shall get as arguments the list item being attempted to be matched and the match_context as is.] */
markrad 3:c0556ff7b8e3 233 if (match_function((LIST_ITEM_HANDLE)current, match_context) == true)
markrad 3:c0556ff7b8e3 234 {
markrad 3:c0556ff7b8e3 235 /* Codes_SRS_LIST_01_017: [If the match function returns true, singlylinkedlist_find shall consider that item as matching.] */
markrad 3:c0556ff7b8e3 236 break;
markrad 3:c0556ff7b8e3 237 }
markrad 3:c0556ff7b8e3 238
markrad 3:c0556ff7b8e3 239 /* Codes_SRS_LIST_01_016: [If the match function returns false, singlylinkedlist_find shall consider that item as not matching.] */
markrad 3:c0556ff7b8e3 240 current = (LIST_ITEM_INSTANCE*)current->next;
markrad 3:c0556ff7b8e3 241 }
markrad 3:c0556ff7b8e3 242
markrad 3:c0556ff7b8e3 243 if (current == NULL)
markrad 3:c0556ff7b8e3 244 {
markrad 3:c0556ff7b8e3 245 /* Codes_SRS_LIST_01_015: [If the list is empty, singlylinkedlist_find shall return NULL.] */
markrad 3:c0556ff7b8e3 246 result = NULL;
markrad 3:c0556ff7b8e3 247 }
markrad 3:c0556ff7b8e3 248 else
markrad 3:c0556ff7b8e3 249 {
markrad 3:c0556ff7b8e3 250 result = current;
markrad 3:c0556ff7b8e3 251 }
markrad 3:c0556ff7b8e3 252 }
markrad 3:c0556ff7b8e3 253
markrad 3:c0556ff7b8e3 254 return result;
markrad 3:c0556ff7b8e3 255 }