leo hendrickson / Mbed OS S

simple-mbed-cloud-client/mbed-cloud-client/mbed-client/source/m2mcallbackstorage.cpp@0:25fa8795676b, 2021-04-18 (annotated)

Committer:
leothedragon
Date:
Sun Apr 18 15:20:23 2021 +0000
Revision:
0:25fa8795676b
DS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leothedragon 0:25fa8795676b 1 /*
leothedragon 0:25fa8795676b 2 * Copyright (c) 2017 ARM Limited. All rights reserved.
leothedragon 0:25fa8795676b 3 * SPDX-License-Identifier: Apache-2.0
leothedragon 0:25fa8795676b 4 * Licensed under the Apache License, Version 2.0 (the License); you may
leothedragon 0:25fa8795676b 5 * not use this file except in compliance with the License.
leothedragon 0:25fa8795676b 6 * You may obtain a copy of the License at
leothedragon 0:25fa8795676b 7 *
leothedragon 0:25fa8795676b 8 * http://www.apache.org/licenses/LICENSE-2.0
leothedragon 0:25fa8795676b 9 *
leothedragon 0:25fa8795676b 10 * Unless required by applicable law or agreed to in writing, software
leothedragon 0:25fa8795676b 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
leothedragon 0:25fa8795676b 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
leothedragon 0:25fa8795676b 13 * See the License for the specific language governing permissions and
leothedragon 0:25fa8795676b 14 * limitations under the License.
leothedragon 0:25fa8795676b 15 */
leothedragon 0:25fa8795676b 16
leothedragon 0:25fa8795676b 17 #include "include/m2mcallbackstorage.h"
leothedragon 0:25fa8795676b 18
leothedragon 0:25fa8795676b 19 #include <stddef.h>
leothedragon 0:25fa8795676b 20
leothedragon 0:25fa8795676b 21 // Dummy constructor, which does not init any value to something meaningful but needed for array construction.
leothedragon 0:25fa8795676b 22 // It is better to leave values unintialized, so the Valgrind will point out if the Vector is used without
leothedragon 0:25fa8795676b 23 // setting real values in there.
leothedragon 0:25fa8795676b 24 M2MCallbackAssociation::M2MCallbackAssociation()
leothedragon 0:25fa8795676b 25 {
leothedragon 0:25fa8795676b 26 }
leothedragon 0:25fa8795676b 27
leothedragon 0:25fa8795676b 28 M2MCallbackAssociation::M2MCallbackAssociation(const M2MBase *object, void *callback, M2MCallbackType type, void *client_args)
leothedragon 0:25fa8795676b 29 : _object(object), _callback(callback), _type(type), _client_args(client_args)
leothedragon 0:25fa8795676b 30 {
leothedragon 0:25fa8795676b 31 }
leothedragon 0:25fa8795676b 32
leothedragon 0:25fa8795676b 33 M2MCallbackStorage* M2MCallbackStorage::_static_instance = NULL;
leothedragon 0:25fa8795676b 34
leothedragon 0:25fa8795676b 35 M2MCallbackStorage *M2MCallbackStorage::get_instance()
leothedragon 0:25fa8795676b 36 {
leothedragon 0:25fa8795676b 37 if (M2MCallbackStorage::_static_instance == NULL) {
leothedragon 0:25fa8795676b 38 M2MCallbackStorage::_static_instance = new M2MCallbackStorage();
leothedragon 0:25fa8795676b 39 }
leothedragon 0:25fa8795676b 40 return M2MCallbackStorage::_static_instance;
leothedragon 0:25fa8795676b 41 }
leothedragon 0:25fa8795676b 42
leothedragon 0:25fa8795676b 43 void M2MCallbackStorage::delete_instance()
leothedragon 0:25fa8795676b 44 {
leothedragon 0:25fa8795676b 45 delete M2MCallbackStorage::_static_instance;
leothedragon 0:25fa8795676b 46 M2MCallbackStorage::_static_instance = NULL;
leothedragon 0:25fa8795676b 47 }
leothedragon 0:25fa8795676b 48
leothedragon 0:25fa8795676b 49 M2MCallbackStorage::~M2MCallbackStorage()
leothedragon 0:25fa8795676b 50 {
leothedragon 0:25fa8795676b 51 // TODO: go through the list and delete all the FP<n> objects if there are any.
leothedragon 0:25fa8795676b 52 // On the other hand, if the system is done properly, each m2mobject should actually
leothedragon 0:25fa8795676b 53 // remove its callbacks from its destructor so there is nothing here to do
leothedragon 0:25fa8795676b 54 }
leothedragon 0:25fa8795676b 55
leothedragon 0:25fa8795676b 56 bool M2MCallbackStorage::add_callback(const M2MBase &object,
leothedragon 0:25fa8795676b 57 void *callback,
leothedragon 0:25fa8795676b 58 M2MCallbackAssociation::M2MCallbackType type,
leothedragon 0:25fa8795676b 59 void *client_args)
leothedragon 0:25fa8795676b 60 {
leothedragon 0:25fa8795676b 61 bool add_success = false;
leothedragon 0:25fa8795676b 62 M2MCallbackStorage* instance = get_instance();
leothedragon 0:25fa8795676b 63 if (instance) {
leothedragon 0:25fa8795676b 64
leothedragon 0:25fa8795676b 65 add_success = instance->do_add_callback(object, callback, type, client_args);
leothedragon 0:25fa8795676b 66 }
leothedragon 0:25fa8795676b 67 return add_success;
leothedragon 0:25fa8795676b 68 }
leothedragon 0:25fa8795676b 69
leothedragon 0:25fa8795676b 70 bool M2MCallbackStorage::do_add_callback(const M2MBase &object, void *callback, M2MCallbackAssociation::M2MCallbackType type, void *client_args)
leothedragon 0:25fa8795676b 71 {
leothedragon 0:25fa8795676b 72 bool add_success = false;
leothedragon 0:25fa8795676b 73
leothedragon 0:25fa8795676b 74 // verify that the same callback is not re-added.
leothedragon 0:25fa8795676b 75 if (does_callback_exist(object, callback, type) == false) {
leothedragon 0:25fa8795676b 76
leothedragon 0:25fa8795676b 77 const M2MCallbackAssociation association(&object, callback, type, client_args);
leothedragon 0:25fa8795676b 78 _callbacks.push_back(association);
leothedragon 0:25fa8795676b 79 add_success = true;
leothedragon 0:25fa8795676b 80 }
leothedragon 0:25fa8795676b 81
leothedragon 0:25fa8795676b 82 return add_success;
leothedragon 0:25fa8795676b 83 }
leothedragon 0:25fa8795676b 84
leothedragon 0:25fa8795676b 85 #if 0 // Functions not used currently
leothedragon 0:25fa8795676b 86 void M2MCallbackStorage::remove_callbacks(const M2MBase &object)
leothedragon 0:25fa8795676b 87 {
leothedragon 0:25fa8795676b 88 // do not use the get_instance() here as it might create the instance
leothedragon 0:25fa8795676b 89 M2MCallbackStorage* instance = M2MCallbackStorage::_static_instance;
leothedragon 0:25fa8795676b 90 if (instance) {
leothedragon 0:25fa8795676b 91
leothedragon 0:25fa8795676b 92 instance->do_remove_callbacks(object);
leothedragon 0:25fa8795676b 93 }
leothedragon 0:25fa8795676b 94 }
leothedragon 0:25fa8795676b 95
leothedragon 0:25fa8795676b 96 void M2MCallbackStorage::do_remove_callbacks(const M2MBase &object)
leothedragon 0:25fa8795676b 97 {
leothedragon 0:25fa8795676b 98 // find any association to given object and delete them from the vector
leothedragon 0:25fa8795676b 99 for (int index = 0; index < _callbacks.size();) {
leothedragon 0:25fa8795676b 100 if (_callbacks[index]._object == &object) {
leothedragon 0:25fa8795676b 101 _callbacks.erase(index);
leothedragon 0:25fa8795676b 102 } else {
leothedragon 0:25fa8795676b 103 index++;
leothedragon 0:25fa8795676b 104 }
leothedragon 0:25fa8795676b 105 }
leothedragon 0:25fa8795676b 106 }
leothedragon 0:25fa8795676b 107 #endif
leothedragon 0:25fa8795676b 108
leothedragon 0:25fa8795676b 109 void* M2MCallbackStorage::remove_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:25fa8795676b 110 {
leothedragon 0:25fa8795676b 111 void* callback = NULL;
leothedragon 0:25fa8795676b 112
leothedragon 0:25fa8795676b 113 // do not use the get_instance() here as it might create the instance
leothedragon 0:25fa8795676b 114 M2MCallbackStorage* instance = M2MCallbackStorage::_static_instance;
leothedragon 0:25fa8795676b 115 if (instance) {
leothedragon 0:25fa8795676b 116
leothedragon 0:25fa8795676b 117 callback = instance->do_remove_callback(object, type);
leothedragon 0:25fa8795676b 118 }
leothedragon 0:25fa8795676b 119 return callback;
leothedragon 0:25fa8795676b 120 }
leothedragon 0:25fa8795676b 121
leothedragon 0:25fa8795676b 122 void* M2MCallbackStorage::do_remove_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:25fa8795676b 123 {
leothedragon 0:25fa8795676b 124 void* callback = NULL;
leothedragon 0:25fa8795676b 125 for (int index = 0; index < _callbacks.size(); index++) {
leothedragon 0:25fa8795676b 126
leothedragon 0:25fa8795676b 127 if ((_callbacks[index]._object == &object) && (_callbacks[index]._type == type)) {
leothedragon 0:25fa8795676b 128 callback = _callbacks[index]._callback;
leothedragon 0:25fa8795676b 129 _callbacks.erase(index);
leothedragon 0:25fa8795676b 130 break;
leothedragon 0:25fa8795676b 131 }
leothedragon 0:25fa8795676b 132 }
leothedragon 0:25fa8795676b 133 return callback;
leothedragon 0:25fa8795676b 134 }
leothedragon 0:25fa8795676b 135
leothedragon 0:25fa8795676b 136 void* M2MCallbackStorage::get_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:25fa8795676b 137 {
leothedragon 0:25fa8795676b 138 void* callback = NULL;
leothedragon 0:25fa8795676b 139 const M2MCallbackStorage* instance = get_instance();
leothedragon 0:25fa8795676b 140 if (instance) {
leothedragon 0:25fa8795676b 141
leothedragon 0:25fa8795676b 142 callback = instance->do_get_callback(object, type);
leothedragon 0:25fa8795676b 143 }
leothedragon 0:25fa8795676b 144 return callback;
leothedragon 0:25fa8795676b 145 }
leothedragon 0:25fa8795676b 146
leothedragon 0:25fa8795676b 147 void* M2MCallbackStorage::do_get_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type) const
leothedragon 0:25fa8795676b 148 {
leothedragon 0:25fa8795676b 149 void* callback = NULL;
leothedragon 0:25fa8795676b 150 if (!_callbacks.empty()) {
leothedragon 0:25fa8795676b 151 M2MCallbackAssociationList::const_iterator it = _callbacks.begin();
leothedragon 0:25fa8795676b 152
leothedragon 0:25fa8795676b 153 for ( ; it != _callbacks.end(); it++ ) {
leothedragon 0:25fa8795676b 154
leothedragon 0:25fa8795676b 155 if ((it->_object == &object) && (it->_type == type)) {
leothedragon 0:25fa8795676b 156 callback = it->_callback;
leothedragon 0:25fa8795676b 157 break;
leothedragon 0:25fa8795676b 158 }
leothedragon 0:25fa8795676b 159 }
leothedragon 0:25fa8795676b 160 }
leothedragon 0:25fa8795676b 161 return callback;
leothedragon 0:25fa8795676b 162 }
leothedragon 0:25fa8795676b 163
leothedragon 0:25fa8795676b 164 M2MCallbackAssociation* M2MCallbackStorage::get_association_item(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:25fa8795676b 165 {
leothedragon 0:25fa8795676b 166 M2MCallbackAssociation* callback_association = NULL;
leothedragon 0:25fa8795676b 167 const M2MCallbackStorage* instance = get_instance();
leothedragon 0:25fa8795676b 168 if (instance) {
leothedragon 0:25fa8795676b 169
leothedragon 0:25fa8795676b 170 callback_association = instance->do_get_association_item(object, type);
leothedragon 0:25fa8795676b 171 }
leothedragon 0:25fa8795676b 172 return callback_association;
leothedragon 0:25fa8795676b 173 }
leothedragon 0:25fa8795676b 174
leothedragon 0:25fa8795676b 175 M2MCallbackAssociation* M2MCallbackStorage::do_get_association_item(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type) const
leothedragon 0:25fa8795676b 176 {
leothedragon 0:25fa8795676b 177 M2MCallbackAssociation* callback_association = NULL;
leothedragon 0:25fa8795676b 178 if (!_callbacks.empty()) {
leothedragon 0:25fa8795676b 179 M2MCallbackAssociationList::const_iterator it = _callbacks.begin();
leothedragon 0:25fa8795676b 180
leothedragon 0:25fa8795676b 181 for ( ; it != _callbacks.end(); it++ ) {
leothedragon 0:25fa8795676b 182
leothedragon 0:25fa8795676b 183 if ((it->_object == &object) && (it->_type == type)) {
leothedragon 0:25fa8795676b 184 callback_association = (M2MCallbackAssociation*)it;
leothedragon 0:25fa8795676b 185 break;
leothedragon 0:25fa8795676b 186 }
leothedragon 0:25fa8795676b 187 }
leothedragon 0:25fa8795676b 188 }
leothedragon 0:25fa8795676b 189 return callback_association;
leothedragon 0:25fa8795676b 190 }
leothedragon 0:25fa8795676b 191
leothedragon 0:25fa8795676b 192 bool M2MCallbackStorage::does_callback_exist(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:25fa8795676b 193 {
leothedragon 0:25fa8795676b 194 bool found = false;
leothedragon 0:25fa8795676b 195 if (get_callback(object, type) != NULL) {
leothedragon 0:25fa8795676b 196 found = true;
leothedragon 0:25fa8795676b 197 }
leothedragon 0:25fa8795676b 198 return found;
leothedragon 0:25fa8795676b 199 }
leothedragon 0:25fa8795676b 200
leothedragon 0:25fa8795676b 201 bool M2MCallbackStorage::does_callback_exist(const M2MBase &object, void *callback, M2MCallbackAssociation::M2MCallbackType type) const
leothedragon 0:25fa8795676b 202 {
leothedragon 0:25fa8795676b 203 bool match_found = false;
leothedragon 0:25fa8795676b 204
leothedragon 0:25fa8795676b 205 if (!_callbacks.empty()) {
leothedragon 0:25fa8795676b 206 M2MCallbackAssociationList::const_iterator it = _callbacks.begin();
leothedragon 0:25fa8795676b 207
leothedragon 0:25fa8795676b 208 for ( ; it != _callbacks.end(); it++ ) {
leothedragon 0:25fa8795676b 209
leothedragon 0:25fa8795676b 210 if ((it->_object == &object) && (it->_callback == callback) && (it->_type == type)) {
leothedragon 0:25fa8795676b 211 match_found = true;
leothedragon 0:25fa8795676b 212 break;
leothedragon 0:25fa8795676b 213 }
leothedragon 0:25fa8795676b 214 }
leothedragon 0:25fa8795676b 215 }
leothedragon 0:25fa8795676b 216
leothedragon 0:25fa8795676b 217 return match_found;
leothedragon 0:25fa8795676b 218 }