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simple-mbed-cloud-client/mbed-cloud-client/mbed-client/source/m2mcallbackstorage.cpp@0:8f0bb79ddd48, 2021-05-04 (annotated)

Committer:
leothedragon
Date:
Tue May 04 08:55:12 2021 +0000
Revision:
0:8f0bb79ddd48
nmn

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leothedragon 0:8f0bb79ddd48 1 /*
leothedragon 0:8f0bb79ddd48 2 * Copyright (c) 2017 ARM Limited. All rights reserved.
leothedragon 0:8f0bb79ddd48 3 * SPDX-License-Identifier: Apache-2.0
leothedragon 0:8f0bb79ddd48 4 * Licensed under the Apache License, Version 2.0 (the License); you may
leothedragon 0:8f0bb79ddd48 5 * not use this file except in compliance with the License.
leothedragon 0:8f0bb79ddd48 6 * You may obtain a copy of the License at
leothedragon 0:8f0bb79ddd48 7 *
leothedragon 0:8f0bb79ddd48 8 * http://www.apache.org/licenses/LICENSE-2.0
leothedragon 0:8f0bb79ddd48 9 *
leothedragon 0:8f0bb79ddd48 10 * Unless required by applicable law or agreed to in writing, software
leothedragon 0:8f0bb79ddd48 11 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
leothedragon 0:8f0bb79ddd48 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
leothedragon 0:8f0bb79ddd48 13 * See the License for the specific language governing permissions and
leothedragon 0:8f0bb79ddd48 14 * limitations under the License.
leothedragon 0:8f0bb79ddd48 15 */
leothedragon 0:8f0bb79ddd48 16
leothedragon 0:8f0bb79ddd48 17 #include "include/m2mcallbackstorage.h"
leothedragon 0:8f0bb79ddd48 18
leothedragon 0:8f0bb79ddd48 19 #include <stddef.h>
leothedragon 0:8f0bb79ddd48 20
leothedragon 0:8f0bb79ddd48 21 // Dummy constructor, which does not init any value to something meaningful but needed for array construction.
leothedragon 0:8f0bb79ddd48 22 // It is better to leave values unintialized, so the Valgrind will point out if the Vector is used without
leothedragon 0:8f0bb79ddd48 23 // setting real values in there.
leothedragon 0:8f0bb79ddd48 24 M2MCallbackAssociation::M2MCallbackAssociation()
leothedragon 0:8f0bb79ddd48 25 {
leothedragon 0:8f0bb79ddd48 26 }
leothedragon 0:8f0bb79ddd48 27
leothedragon 0:8f0bb79ddd48 28 M2MCallbackAssociation::M2MCallbackAssociation(const M2MBase *object, void *callback, M2MCallbackType type, void *client_args)
leothedragon 0:8f0bb79ddd48 29 : _object(object), _callback(callback), _type(type), _client_args(client_args)
leothedragon 0:8f0bb79ddd48 30 {
leothedragon 0:8f0bb79ddd48 31 }
leothedragon 0:8f0bb79ddd48 32
leothedragon 0:8f0bb79ddd48 33 M2MCallbackStorage* M2MCallbackStorage::_static_instance = NULL;
leothedragon 0:8f0bb79ddd48 34
leothedragon 0:8f0bb79ddd48 35 M2MCallbackStorage *M2MCallbackStorage::get_instance()
leothedragon 0:8f0bb79ddd48 36 {
leothedragon 0:8f0bb79ddd48 37 if (M2MCallbackStorage::_static_instance == NULL) {
leothedragon 0:8f0bb79ddd48 38 M2MCallbackStorage::_static_instance = new M2MCallbackStorage();
leothedragon 0:8f0bb79ddd48 39 }
leothedragon 0:8f0bb79ddd48 40 return M2MCallbackStorage::_static_instance;
leothedragon 0:8f0bb79ddd48 41 }
leothedragon 0:8f0bb79ddd48 42
leothedragon 0:8f0bb79ddd48 43 void M2MCallbackStorage::delete_instance()
leothedragon 0:8f0bb79ddd48 44 {
leothedragon 0:8f0bb79ddd48 45 delete M2MCallbackStorage::_static_instance;
leothedragon 0:8f0bb79ddd48 46 M2MCallbackStorage::_static_instance = NULL;
leothedragon 0:8f0bb79ddd48 47 }
leothedragon 0:8f0bb79ddd48 48
leothedragon 0:8f0bb79ddd48 49 M2MCallbackStorage::~M2MCallbackStorage()
leothedragon 0:8f0bb79ddd48 50 {
leothedragon 0:8f0bb79ddd48 51 // TODO: go through the list and delete all the FP<n> objects if there are any.
leothedragon 0:8f0bb79ddd48 52 // On the other hand, if the system is done properly, each m2mobject should actually
leothedragon 0:8f0bb79ddd48 53 // remove its callbacks from its destructor so there is nothing here to do
leothedragon 0:8f0bb79ddd48 54 }
leothedragon 0:8f0bb79ddd48 55
leothedragon 0:8f0bb79ddd48 56 bool M2MCallbackStorage::add_callback(const M2MBase &object,
leothedragon 0:8f0bb79ddd48 57 void *callback,
leothedragon 0:8f0bb79ddd48 58 M2MCallbackAssociation::M2MCallbackType type,
leothedragon 0:8f0bb79ddd48 59 void *client_args)
leothedragon 0:8f0bb79ddd48 60 {
leothedragon 0:8f0bb79ddd48 61 bool add_success = false;
leothedragon 0:8f0bb79ddd48 62 M2MCallbackStorage* instance = get_instance();
leothedragon 0:8f0bb79ddd48 63 if (instance) {
leothedragon 0:8f0bb79ddd48 64
leothedragon 0:8f0bb79ddd48 65 add_success = instance->do_add_callback(object, callback, type, client_args);
leothedragon 0:8f0bb79ddd48 66 }
leothedragon 0:8f0bb79ddd48 67 return add_success;
leothedragon 0:8f0bb79ddd48 68 }
leothedragon 0:8f0bb79ddd48 69
leothedragon 0:8f0bb79ddd48 70 bool M2MCallbackStorage::do_add_callback(const M2MBase &object, void *callback, M2MCallbackAssociation::M2MCallbackType type, void *client_args)
leothedragon 0:8f0bb79ddd48 71 {
leothedragon 0:8f0bb79ddd48 72 bool add_success = false;
leothedragon 0:8f0bb79ddd48 73
leothedragon 0:8f0bb79ddd48 74 // verify that the same callback is not re-added.
leothedragon 0:8f0bb79ddd48 75 if (does_callback_exist(object, callback, type) == false) {
leothedragon 0:8f0bb79ddd48 76
leothedragon 0:8f0bb79ddd48 77 const M2MCallbackAssociation association(&object, callback, type, client_args);
leothedragon 0:8f0bb79ddd48 78 _callbacks.push_back(association);
leothedragon 0:8f0bb79ddd48 79 add_success = true;
leothedragon 0:8f0bb79ddd48 80 }
leothedragon 0:8f0bb79ddd48 81
leothedragon 0:8f0bb79ddd48 82 return add_success;
leothedragon 0:8f0bb79ddd48 83 }
leothedragon 0:8f0bb79ddd48 84
leothedragon 0:8f0bb79ddd48 85 #if 0 // Functions not used currently
leothedragon 0:8f0bb79ddd48 86 void M2MCallbackStorage::remove_callbacks(const M2MBase &object)
leothedragon 0:8f0bb79ddd48 87 {
leothedragon 0:8f0bb79ddd48 88 // do not use the get_instance() here as it might create the instance
leothedragon 0:8f0bb79ddd48 89 M2MCallbackStorage* instance = M2MCallbackStorage::_static_instance;
leothedragon 0:8f0bb79ddd48 90 if (instance) {
leothedragon 0:8f0bb79ddd48 91
leothedragon 0:8f0bb79ddd48 92 instance->do_remove_callbacks(object);
leothedragon 0:8f0bb79ddd48 93 }
leothedragon 0:8f0bb79ddd48 94 }
leothedragon 0:8f0bb79ddd48 95
leothedragon 0:8f0bb79ddd48 96 void M2MCallbackStorage::do_remove_callbacks(const M2MBase &object)
leothedragon 0:8f0bb79ddd48 97 {
leothedragon 0:8f0bb79ddd48 98 // find any association to given object and delete them from the vector
leothedragon 0:8f0bb79ddd48 99 for (int index = 0; index < _callbacks.size();) {
leothedragon 0:8f0bb79ddd48 100 if (_callbacks[index]._object == &object) {
leothedragon 0:8f0bb79ddd48 101 _callbacks.erase(index);
leothedragon 0:8f0bb79ddd48 102 } else {
leothedragon 0:8f0bb79ddd48 103 index++;
leothedragon 0:8f0bb79ddd48 104 }
leothedragon 0:8f0bb79ddd48 105 }
leothedragon 0:8f0bb79ddd48 106 }
leothedragon 0:8f0bb79ddd48 107 #endif
leothedragon 0:8f0bb79ddd48 108
leothedragon 0:8f0bb79ddd48 109 void* M2MCallbackStorage::remove_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:8f0bb79ddd48 110 {
leothedragon 0:8f0bb79ddd48 111 void* callback = NULL;
leothedragon 0:8f0bb79ddd48 112
leothedragon 0:8f0bb79ddd48 113 // do not use the get_instance() here as it might create the instance
leothedragon 0:8f0bb79ddd48 114 M2MCallbackStorage* instance = M2MCallbackStorage::_static_instance;
leothedragon 0:8f0bb79ddd48 115 if (instance) {
leothedragon 0:8f0bb79ddd48 116
leothedragon 0:8f0bb79ddd48 117 callback = instance->do_remove_callback(object, type);
leothedragon 0:8f0bb79ddd48 118 }
leothedragon 0:8f0bb79ddd48 119 return callback;
leothedragon 0:8f0bb79ddd48 120 }
leothedragon 0:8f0bb79ddd48 121
leothedragon 0:8f0bb79ddd48 122 void* M2MCallbackStorage::do_remove_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:8f0bb79ddd48 123 {
leothedragon 0:8f0bb79ddd48 124 void* callback = NULL;
leothedragon 0:8f0bb79ddd48 125 for (int index = 0; index < _callbacks.size(); index++) {
leothedragon 0:8f0bb79ddd48 126
leothedragon 0:8f0bb79ddd48 127 if ((_callbacks[index]._object == &object) && (_callbacks[index]._type == type)) {
leothedragon 0:8f0bb79ddd48 128 callback = _callbacks[index]._callback;
leothedragon 0:8f0bb79ddd48 129 _callbacks.erase(index);
leothedragon 0:8f0bb79ddd48 130 break;
leothedragon 0:8f0bb79ddd48 131 }
leothedragon 0:8f0bb79ddd48 132 }
leothedragon 0:8f0bb79ddd48 133 return callback;
leothedragon 0:8f0bb79ddd48 134 }
leothedragon 0:8f0bb79ddd48 135
leothedragon 0:8f0bb79ddd48 136 void* M2MCallbackStorage::get_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:8f0bb79ddd48 137 {
leothedragon 0:8f0bb79ddd48 138 void* callback = NULL;
leothedragon 0:8f0bb79ddd48 139 const M2MCallbackStorage* instance = get_instance();
leothedragon 0:8f0bb79ddd48 140 if (instance) {
leothedragon 0:8f0bb79ddd48 141
leothedragon 0:8f0bb79ddd48 142 callback = instance->do_get_callback(object, type);
leothedragon 0:8f0bb79ddd48 143 }
leothedragon 0:8f0bb79ddd48 144 return callback;
leothedragon 0:8f0bb79ddd48 145 }
leothedragon 0:8f0bb79ddd48 146
leothedragon 0:8f0bb79ddd48 147 void* M2MCallbackStorage::do_get_callback(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type) const
leothedragon 0:8f0bb79ddd48 148 {
leothedragon 0:8f0bb79ddd48 149 void* callback = NULL;
leothedragon 0:8f0bb79ddd48 150 if (!_callbacks.empty()) {
leothedragon 0:8f0bb79ddd48 151 M2MCallbackAssociationList::const_iterator it = _callbacks.begin();
leothedragon 0:8f0bb79ddd48 152
leothedragon 0:8f0bb79ddd48 153 for ( ; it != _callbacks.end(); it++ ) {
leothedragon 0:8f0bb79ddd48 154
leothedragon 0:8f0bb79ddd48 155 if ((it->_object == &object) && (it->_type == type)) {
leothedragon 0:8f0bb79ddd48 156 callback = it->_callback;
leothedragon 0:8f0bb79ddd48 157 break;
leothedragon 0:8f0bb79ddd48 158 }
leothedragon 0:8f0bb79ddd48 159 }
leothedragon 0:8f0bb79ddd48 160 }
leothedragon 0:8f0bb79ddd48 161 return callback;
leothedragon 0:8f0bb79ddd48 162 }
leothedragon 0:8f0bb79ddd48 163
leothedragon 0:8f0bb79ddd48 164 M2MCallbackAssociation* M2MCallbackStorage::get_association_item(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:8f0bb79ddd48 165 {
leothedragon 0:8f0bb79ddd48 166 M2MCallbackAssociation* callback_association = NULL;
leothedragon 0:8f0bb79ddd48 167 const M2MCallbackStorage* instance = get_instance();
leothedragon 0:8f0bb79ddd48 168 if (instance) {
leothedragon 0:8f0bb79ddd48 169
leothedragon 0:8f0bb79ddd48 170 callback_association = instance->do_get_association_item(object, type);
leothedragon 0:8f0bb79ddd48 171 }
leothedragon 0:8f0bb79ddd48 172 return callback_association;
leothedragon 0:8f0bb79ddd48 173 }
leothedragon 0:8f0bb79ddd48 174
leothedragon 0:8f0bb79ddd48 175 M2MCallbackAssociation* M2MCallbackStorage::do_get_association_item(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type) const
leothedragon 0:8f0bb79ddd48 176 {
leothedragon 0:8f0bb79ddd48 177 M2MCallbackAssociation* callback_association = NULL;
leothedragon 0:8f0bb79ddd48 178 if (!_callbacks.empty()) {
leothedragon 0:8f0bb79ddd48 179 M2MCallbackAssociationList::const_iterator it = _callbacks.begin();
leothedragon 0:8f0bb79ddd48 180
leothedragon 0:8f0bb79ddd48 181 for ( ; it != _callbacks.end(); it++ ) {
leothedragon 0:8f0bb79ddd48 182
leothedragon 0:8f0bb79ddd48 183 if ((it->_object == &object) && (it->_type == type)) {
leothedragon 0:8f0bb79ddd48 184 callback_association = (M2MCallbackAssociation*)it;
leothedragon 0:8f0bb79ddd48 185 break;
leothedragon 0:8f0bb79ddd48 186 }
leothedragon 0:8f0bb79ddd48 187 }
leothedragon 0:8f0bb79ddd48 188 }
leothedragon 0:8f0bb79ddd48 189 return callback_association;
leothedragon 0:8f0bb79ddd48 190 }
leothedragon 0:8f0bb79ddd48 191
leothedragon 0:8f0bb79ddd48 192 bool M2MCallbackStorage::does_callback_exist(const M2MBase &object, M2MCallbackAssociation::M2MCallbackType type)
leothedragon 0:8f0bb79ddd48 193 {
leothedragon 0:8f0bb79ddd48 194 bool found = false;
leothedragon 0:8f0bb79ddd48 195 if (get_callback(object, type) != NULL) {
leothedragon 0:8f0bb79ddd48 196 found = true;
leothedragon 0:8f0bb79ddd48 197 }
leothedragon 0:8f0bb79ddd48 198 return found;
leothedragon 0:8f0bb79ddd48 199 }
leothedragon 0:8f0bb79ddd48 200
leothedragon 0:8f0bb79ddd48 201 bool M2MCallbackStorage::does_callback_exist(const M2MBase &object, void *callback, M2MCallbackAssociation::M2MCallbackType type) const
leothedragon 0:8f0bb79ddd48 202 {
leothedragon 0:8f0bb79ddd48 203 bool match_found = false;
leothedragon 0:8f0bb79ddd48 204
leothedragon 0:8f0bb79ddd48 205 if (!_callbacks.empty()) {
leothedragon 0:8f0bb79ddd48 206 M2MCallbackAssociationList::const_iterator it = _callbacks.begin();
leothedragon 0:8f0bb79ddd48 207
leothedragon 0:8f0bb79ddd48 208 for ( ; it != _callbacks.end(); it++ ) {
leothedragon 0:8f0bb79ddd48 209
leothedragon 0:8f0bb79ddd48 210 if ((it->_object == &object) && (it->_callback == callback) && (it->_type == type)) {
leothedragon 0:8f0bb79ddd48 211 match_found = true;
leothedragon 0:8f0bb79ddd48 212 break;
leothedragon 0:8f0bb79ddd48 213 }
leothedragon 0:8f0bb79ddd48 214 }
leothedragon 0:8f0bb79ddd48 215 }
leothedragon 0:8f0bb79ddd48 216
leothedragon 0:8f0bb79ddd48 217 return match_found;
leothedragon 0:8f0bb79ddd48 218 }