Doug Anson / mbedConnectorInterface

mbed Connector Endpoint interface. This interface permits a mbed endpoint to easily setup MDS resources and emit those resources to an MDS server.

Dependents:   IoT_LED_demo ServoTest uWater_Project hackathon ... more

api/InstancePointerTable.cpp@61:143beb6d8800, 2015-09-06 (annotated)

Committer:
ansond
Date:
Sun Sep 06 03:16:02 2015 +0000
Revision:
61:143beb6d8800
Parent:
5:a929d65eb385 
fixes to observation configuration/toggle switch issues.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 0:b438482ebbfc 1 /**
ansond 0:b438482ebbfc 2 * @file InstancePointerTable.h
ansond 0:b438482ebbfc 3 * @brief instance pointer table header
ansond 0:b438482ebbfc 4 * @author Doug Anson/Chris Paola
ansond 0:b438482ebbfc 5 * @version 1.0
sam_grove 2:853f9ecc12df 6 * @see
ansond 0:b438482ebbfc 7 *
ansond 0:b438482ebbfc 8 * Copyright (c) 2014
ansond 0:b438482ebbfc 9 *
ansond 0:b438482ebbfc 10 * Licensed under the Apache License, Version 2.0 (the "License");
ansond 0:b438482ebbfc 11 * you may not use this file except in compliance with the License.
ansond 0:b438482ebbfc 12 * You may obtain a copy of the License at
ansond 0:b438482ebbfc 13 *
ansond 0:b438482ebbfc 14 * http://www.apache.org/licenses/LICENSE-2.0
ansond 0:b438482ebbfc 15 *
ansond 0:b438482ebbfc 16 * Unless required by applicable law or agreed to in writing, software
ansond 0:b438482ebbfc 17 * distributed under the License is distributed on an "AS IS" BASIS,
ansond 0:b438482ebbfc 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ansond 0:b438482ebbfc 19 * See the License for the specific language governing permissions and
ansond 0:b438482ebbfc 20 * limitations under the License.
ansond 0:b438482ebbfc 21 */
sam_grove 2:853f9ecc12df 22
sam_grove 2:853f9ecc12df 23 #include "InstancePointerTable.h"
sam_grove 2:853f9ecc12df 24
sam_grove 2:853f9ecc12df 25 // constructor
sam_grove 2:853f9ecc12df 26 InstancePointerTable::InstancePointerTable(const Logger *logger)
sam_grove 2:853f9ecc12df 27 {
sam_grove 2:853f9ecc12df 28 this->m_logger = (Logger *)logger;
sam_grove 2:853f9ecc12df 29 }
sam_grove 2:853f9ecc12df 30
sam_grove 2:853f9ecc12df 31 // destructor
sam_grove 2:853f9ecc12df 32 InstancePointerTable::~InstancePointerTable()
sam_grove 2:853f9ecc12df 33 {
sam_grove 2:853f9ecc12df 34 }
sam_grove 2:853f9ecc12df 35
sam_grove 2:853f9ecc12df 36 // add to the table
sam_grove 2:853f9ecc12df 37 void InstancePointerTable::add(string key,void *instance)
sam_grove 2:853f9ecc12df 38 {
sam_grove 2:853f9ecc12df 39 // get our index
sam_grove 2:853f9ecc12df 40 int index = this->indexFromKey(key);
sam_grove 2:853f9ecc12df 41 if (index >= 0) {
sam_grove 2:853f9ecc12df 42 // overwrite the existing reference we have...
sam_grove 2:853f9ecc12df 43 this->m_instance_pointer_table[index].instance = instance;
sam_grove 2:853f9ecc12df 44 } else {
ansond 0:b438482ebbfc 45 // get the next empty slot
ansond 0:b438482ebbfc 46 index = this->nextEmptySlot();
sam_grove 2:853f9ecc12df 47 if (index >= 0) {
ansond 0:b438482ebbfc 48 // set the table entry
ansond 0:b438482ebbfc 49 this->m_instance_pointer_table[index].key = key;
ansond 0:b438482ebbfc 50 this->m_instance_pointer_table[index].instance = instance;
sam_grove 2:853f9ecc12df 51 } else {
ansond 0:b438482ebbfc 52 // table is FULL! Error...
ansond 5:a929d65eb385 53 this->logger()->log("ERROR: InstancePointerTable is FULL... please expand table");
ansond 0:b438482ebbfc 54 }
ansond 0:b438482ebbfc 55 }
sam_grove 2:853f9ecc12df 56 }
sam_grove 2:853f9ecc12df 57
sam_grove 2:853f9ecc12df 58 // get from the table
sam_grove 2:853f9ecc12df 59 void *InstancePointerTable::get(string key)
sam_grove 2:853f9ecc12df 60 {
ansond 0:b438482ebbfc 61 // get our index
ansond 0:b438482ebbfc 62 int index = this->indexFromKey(key);
ansond 0:b438482ebbfc 63 if (index >= 0) {
ansond 0:b438482ebbfc 64 return this->m_instance_pointer_table[index].instance;
ansond 0:b438482ebbfc 65 }
ansond 0:b438482ebbfc 66 return NULL;
sam_grove 2:853f9ecc12df 67 }
sam_grove 2:853f9ecc12df 68
sam_grove 2:853f9ecc12df 69 // find next empty slot
sam_grove 2:853f9ecc12df 70 int InstancePointerTable::nextEmptySlot()
sam_grove 2:853f9ecc12df 71 {
sam_grove 2:853f9ecc12df 72 return this->indexFromKey("");
sam_grove 2:853f9ecc12df 73 }
sam_grove 2:853f9ecc12df 74
sam_grove 2:853f9ecc12df 75 // lookup into the table
sam_grove 2:853f9ecc12df 76 int InstancePointerTable::indexFromKey(string key)
sam_grove 2:853f9ecc12df 77 {
sam_grove 2:853f9ecc12df 78 int index = -1;
sam_grove 2:853f9ecc12df 79 bool found = false;
sam_grove 2:853f9ecc12df 80
sam_grove 2:853f9ecc12df 81 for(int i=0; i<IPT_MAX_ENTRIES && !found; ++i) {
ansond 0:b438482ebbfc 82 if (this->m_instance_pointer_table[i].key.compare(key) == 0) {
ansond 0:b438482ebbfc 83 found = true;
ansond 0:b438482ebbfc 84 index = i;
ansond 0:b438482ebbfc 85 }
sam_grove 2:853f9ecc12df 86 }
sam_grove 2:853f9ecc12df 87
sam_grove 2:853f9ecc12df 88 return index;
sam_grove 2:853f9ecc12df 89 }
sam_grove 2:853f9ecc12df 90
sam_grove 2:853f9ecc12df 91 // initialize
sam_grove 2:853f9ecc12df 92 void InstancePointerTable::init()
sam_grove 2:853f9ecc12df 93 {
sam_grove 2:853f9ecc12df 94 for(int i=0; i<IPT_MAX_ENTRIES; ++i) {
sam_grove 2:853f9ecc12df 95 this->m_instance_pointer_table[i].key = "";
sam_grove 2:853f9ecc12df 96 this->m_instance_pointer_table[i].instance = NULL;
sam_grove 2:853f9ecc12df 97 }
sam_grove 2:853f9ecc12df 98 }
sam_grove 2:853f9ecc12df 99
sam_grove 2:853f9ecc12df 100 // set our logger
sam_grove 2:853f9ecc12df 101 void InstancePointerTable::setLogger(const Logger *logger)
sam_grove 2:853f9ecc12df 102 {
sam_grove 2:853f9ecc12df 103 this->m_logger = (Logger *)logger;
sam_grove 2:853f9ecc12df 104 }
sam_grove 2:853f9ecc12df 105
sam_grove 2:853f9ecc12df 106 // get our logger
sam_grove 2:853f9ecc12df 107 Logger *InstancePointerTable::logger()
sam_grove 2:853f9ecc12df 108 {
sam_grove 2:853f9ecc12df 109 return this->m_logger;
sam_grove 2:853f9ecc12df 110 }