Xinlei Cao / MbedSmartRest

Own fork of MbedSmartRest

Dependents:   MbedSmartRestMain MbedSmartRestMain

Fork of MbedSmartRest by Cumulocity Official

Aggregator.cpp@6:cd7ba1ddb664, 2014-07-28 (annotated)

Committer:
Cumulocity
Date:
Mon Jul 28 12:11:02 2014 +0200
Revision:
6:cd7ba1ddb664
Parent:
5:2b74510900da
Child:
11:e1bee9a77652
Updated from revision 908949dc5088

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Cumulocity 0:099f76422485 1 /*
Cumulocity 0:099f76422485 2 * Aggregator.cpp
Cumulocity 0:099f76422485 3 *
Cumulocity 0:099f76422485 4 * Created on: Nov 1, 2013
Cumulocity 0:099f76422485 5 * * Authors: Vincent Wochnik <v.wochnik@gmail.com>
Cumulocity 0:099f76422485 6 *
Cumulocity 0:099f76422485 7 * Copyright (c) 2013 Cumulocity GmbH
Cumulocity 0:099f76422485 8 *
Cumulocity 0:099f76422485 9 * Permission is hereby granted, free of charge, to any person obtaining
Cumulocity 0:099f76422485 10 * a copy of this software and associated documentation files (the
Cumulocity 0:099f76422485 11 * "Software"), to deal in the Software without restriction, including
Cumulocity 0:099f76422485 12 * without limitation the rights to use, copy, modify, merge, publish,
Cumulocity 0:099f76422485 13 * distribute, sublicense, and/or sell copies of the Software, and to
Cumulocity 0:099f76422485 14 * permit persons to whom the Software is furnished to do so, subject to
Cumulocity 0:099f76422485 15 * the following conditions:
Cumulocity 0:099f76422485 16 *
Cumulocity 0:099f76422485 17 * The above copyright notice and this permission notice shall be
Cumulocity 0:099f76422485 18 * included in all copies or substantial portions of the Software.
Cumulocity 0:099f76422485 19 *
Cumulocity 0:099f76422485 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Cumulocity 0:099f76422485 21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Cumulocity 0:099f76422485 22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Cumulocity 0:099f76422485 23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
Cumulocity 0:099f76422485 24 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
Cumulocity 0:099f76422485 25 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Cumulocity 0:099f76422485 26 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Cumulocity 0:099f76422485 27 */
Cumulocity 0:099f76422485 28
Cumulocity 0:099f76422485 29 #include "Aggregator.h"
Cumulocity 0:099f76422485 30 #include <stdlib.h>
Cumulocity 0:099f76422485 31
Cumulocity 0:099f76422485 32 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 5:2b74510900da 33 Aggregator::Aggregator(size_t capacity, bool growing, bool managed) :
Cumulocity 5:2b74510900da 34 _initial(capacity),
Cumulocity 5:2b74510900da 35 _growing(growing),
Cumulocity 5:2b74510900da 36 _managed(managed)
Cumulocity 0:099f76422485 37 {
Cumulocity 0:099f76422485 38 _capacity = 0;
Cumulocity 0:099f76422485 39 _list = NULL;
Cumulocity 0:099f76422485 40 _length = 0;
Cumulocity 0:099f76422485 41 }
Cumulocity 0:099f76422485 42 #else
Cumulocity 5:2b74510900da 43 Aggregator::Aggregator(bool managed) :
Cumulocity 5:2b74510900da 44 _managed(managed)
Cumulocity 0:099f76422485 45 {
Cumulocity 0:099f76422485 46 _length = 0;
Cumulocity 0:099f76422485 47 }
Cumulocity 0:099f76422485 48 #endif
Cumulocity 0:099f76422485 49
Cumulocity 0:099f76422485 50 Aggregator::~Aggregator()
Cumulocity 0:099f76422485 51 {
Cumulocity 5:2b74510900da 52 if (_managed) {
Cumulocity 0:099f76422485 53 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 54 delete _list[n];
Cumulocity 0:099f76422485 55 }
Cumulocity 0:099f76422485 56 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 57 if (_list != NULL)
Cumulocity 0:099f76422485 58 free(_list);
Cumulocity 0:099f76422485 59 #endif
Cumulocity 0:099f76422485 60 }
Cumulocity 0:099f76422485 61
Cumulocity 5:2b74510900da 62 bool Aggregator::add(const Record& record)
Cumulocity 0:099f76422485 63 {
Cumulocity 0:099f76422485 64 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 65 if (_length == _capacity) {
Cumulocity 0:099f76422485 66 size_t capacity;
Cumulocity 0:099f76422485 67
Cumulocity 0:099f76422485 68 if ((!_growing) && (_capacity != 0))
Cumulocity 0:099f76422485 69 return false;
Cumulocity 0:099f76422485 70
Cumulocity 0:099f76422485 71 if (_capacity == 0)
Cumulocity 0:099f76422485 72 capacity = _initial;
Cumulocity 0:099f76422485 73 else
Cumulocity 0:099f76422485 74 capacity = _capacity + SMARTREST_AGGREGATOR_MEMORY_INCREMENT;
Cumulocity 0:099f76422485 75
Cumulocity 5:2b74510900da 76 const Record **list = (const Record**)realloc(_list,
Cumulocity 5:2b74510900da 77 capacity*sizeof(Record*));
Cumulocity 0:099f76422485 78 if (list == NULL)
Cumulocity 0:099f76422485 79 return false;
Cumulocity 0:099f76422485 80 _list = list;
Cumulocity 0:099f76422485 81 _capacity = capacity;
Cumulocity 0:099f76422485 82 }
Cumulocity 0:099f76422485 83 #else
Cumulocity 0:099f76422485 84 if (_length == SMARTREST_AGGREGATOR_FIXED_SIZE)
Cumulocity 0:099f76422485 85 return false;
Cumulocity 0:099f76422485 86 #endif
Cumulocity 0:099f76422485 87
Cumulocity 5:2b74510900da 88 if (_managed) {
Cumulocity 5:2b74510900da 89 Record *copy = record.copy();
Cumulocity 0:099f76422485 90 if (copy == NULL)
Cumulocity 0:099f76422485 91 return false;
Cumulocity 0:099f76422485 92 _list[_length++] = copy;
Cumulocity 0:099f76422485 93 } else {
Cumulocity 5:2b74510900da 94 _list[_length++] = &record;
Cumulocity 0:099f76422485 95 }
Cumulocity 0:099f76422485 96 return true;
Cumulocity 0:099f76422485 97 }
Cumulocity 0:099f76422485 98
Cumulocity 6:cd7ba1ddb664 99 const Record& Aggregator::get(size_t index) const
Cumulocity 5:2b74510900da 100 {
Cumulocity 5:2b74510900da 101 return *_list[index];
Cumulocity 5:2b74510900da 102 }
Cumulocity 5:2b74510900da 103
Cumulocity 0:099f76422485 104 void Aggregator::clear()
Cumulocity 0:099f76422485 105 {
Cumulocity 5:2b74510900da 106 if (_managed) {
Cumulocity 0:099f76422485 107 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 108 delete _list[n];
Cumulocity 0:099f76422485 109 }
Cumulocity 0:099f76422485 110 _length = 0;
Cumulocity 0:099f76422485 111
Cumulocity 0:099f76422485 112 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 113 if (_list != NULL)
Cumulocity 0:099f76422485 114 free(_list);
Cumulocity 0:099f76422485 115 _list = NULL;
Cumulocity 0:099f76422485 116 _capacity = 0;
Cumulocity 0:099f76422485 117 #endif
Cumulocity 0:099f76422485 118 }
Cumulocity 0:099f76422485 119
Cumulocity 6:cd7ba1ddb664 120 size_t Aggregator::length() const
Cumulocity 0:099f76422485 121 {
Cumulocity 0:099f76422485 122 return _length;
Cumulocity 0:099f76422485 123 }
Cumulocity 0:099f76422485 124
Cumulocity 6:cd7ba1ddb664 125 bool Aggregator::full() const
Cumulocity 0:099f76422485 126 {
Cumulocity 0:099f76422485 127 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 128 return (_growing) ? false : (_length == _capacity);
Cumulocity 0:099f76422485 129 #else
Cumulocity 0:099f76422485 130 return (_length == SMARTREST_AGGREGATOR_FIXED_SIZE);
Cumulocity 0:099f76422485 131 #endif
Cumulocity 0:099f76422485 132 }
Cumulocity 0:099f76422485 133
Cumulocity 6:cd7ba1ddb664 134 size_t Aggregator::capacity() const
Cumulocity 0:099f76422485 135 {
Cumulocity 0:099f76422485 136 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 137 return (_growing) ? 0 : _capacity;
Cumulocity 0:099f76422485 138 #else
Cumulocity 0:099f76422485 139 return SMARTREST_AGGREGATOR_FIXED_SIZE;
Cumulocity 0:099f76422485 140 #endif
Cumulocity 0:099f76422485 141 }
Cumulocity 0:099f76422485 142
Cumulocity 6:cd7ba1ddb664 143 bool Aggregator::managed() const
Cumulocity 5:2b74510900da 144 {
Cumulocity 5:2b74510900da 145 return _managed;
Cumulocity 5:2b74510900da 146 }
Cumulocity 5:2b74510900da 147
Cumulocity 0:099f76422485 148 size_t Aggregator::writeTo(AbstractDataSink& sink) const
Cumulocity 0:099f76422485 149 {
Cumulocity 0:099f76422485 150 size_t len = 0;
Cumulocity 0:099f76422485 151 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 152 len += _list[n]->writeTo(sink);
Cumulocity 0:099f76422485 153 return len;
Cumulocity 0:099f76422485 154 }
Cumulocity 0:099f76422485 155
Cumulocity 0:099f76422485 156 size_t Aggregator::writtenLength() const
Cumulocity 0:099f76422485 157 {
Cumulocity 0:099f76422485 158 size_t len = 0;
Cumulocity 0:099f76422485 159 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 160 len += _list[n]->writtenLength();
Cumulocity 0:099f76422485 161 return len;
Cumulocity 0:099f76422485 162 }
Cumulocity 0:099f76422485 163
Cumulocity 5:2b74510900da 164 Aggregator* Aggregator::copy() const
Cumulocity 0:099f76422485 165 {
Cumulocity 0:099f76422485 166 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 167 Aggregator *copy = new Aggregator(_length, _growing, true);
Cumulocity 0:099f76422485 168 #else
Cumulocity 0:099f76422485 169 Aggregator *copy = new Aggregator(true);
Cumulocity 0:099f76422485 170 #endif
Cumulocity 0:099f76422485 171 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 172 copy->add(*_list[n]);
Cumulocity 0:099f76422485 173 return copy;
Cumulocity 0:099f76422485 174 }
Cumulocity 0:099f76422485 175