Sam Grove / Buffer

Buffer for general purpose use. Templated for most datatypes

Dependents:   BufferedSoftSerial 09_PT1000 10_PT1000 11_PT1000 ... more

Example

 #include "mbed.h"
 #include "Buffer.h"

 Buffer <char> buf;

 int main()
 {
     buf = 'a';
     buf.put('b');
     char *head = buf.head();
     puts(head);

     char whats_in_there[2] = {0};
     int pos = 0;

     while(buf.available())
     {   
         whats_in_there[pos++] = buf;
     }
     printf("%c %c\n", whats_in_there[0], whats_in_there[1]);
     buf.clear();
     error("done\n\n\n");
 }

Buffer.cpp@5:7b754354b99c, 2015-01-07 (annotated)

Committer:
ansond
Date:
Wed Jan 07 18:34:56 2015 +0000
Revision:
5:7b754354b99c
Parent:
4:cd0a1f4c623f 
updates to the default buffer sizing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sam_grove 0:5e4bca1bd5f7 1
sam_grove 1:490224f41c09 2 /**
sam_grove 1:490224f41c09 3 * @file Buffer.cpp
sam_grove 1:490224f41c09 4 * @brief Software Buffer - Templated Ring Buffer for most data types
sam_grove 1:490224f41c09 5 * @author sam grove
sam_grove 1:490224f41c09 6 * @version 1.0
sam_grove 1:490224f41c09 7 * @see
sam_grove 1:490224f41c09 8 *
sam_grove 1:490224f41c09 9 * Copyright (c) 2013
sam_grove 1:490224f41c09 10 *
sam_grove 1:490224f41c09 11 * Licensed under the Apache License, Version 2.0 (the "License");
sam_grove 1:490224f41c09 12 * you may not use this file except in compliance with the License.
sam_grove 1:490224f41c09 13 * You may obtain a copy of the License at
sam_grove 1:490224f41c09 14 *
sam_grove 1:490224f41c09 15 * http://www.apache.org/licenses/LICENSE-2.0
sam_grove 1:490224f41c09 16 *
sam_grove 1:490224f41c09 17 * Unless required by applicable law or agreed to in writing, software
sam_grove 1:490224f41c09 18 * distributed under the License is distributed on an "AS IS" BASIS,
sam_grove 1:490224f41c09 19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sam_grove 1:490224f41c09 20 * See the License for the specific language governing permissions and
sam_grove 1:490224f41c09 21 * limitations under the License.
sam_grove 1:490224f41c09 22 */
sam_grove 1:490224f41c09 23
sam_grove 0:5e4bca1bd5f7 24 #include "Buffer.h"
sam_grove 0:5e4bca1bd5f7 25
sam_grove 0:5e4bca1bd5f7 26 template <class T>
sam_grove 3:c2de0ddfe65b 27 Buffer<T>::Buffer(uint32_t size)
sam_grove 0:5e4bca1bd5f7 28 {
sam_grove 0:5e4bca1bd5f7 29 _buf = new T [size];
sam_grove 0:5e4bca1bd5f7 30 _size = size;
sam_grove 0:5e4bca1bd5f7 31 clear();
sam_grove 0:5e4bca1bd5f7 32
sam_grove 0:5e4bca1bd5f7 33 return;
sam_grove 0:5e4bca1bd5f7 34 }
sam_grove 0:5e4bca1bd5f7 35
sam_grove 0:5e4bca1bd5f7 36 template <class T>
sam_grove 0:5e4bca1bd5f7 37 Buffer<T>::~Buffer()
sam_grove 0:5e4bca1bd5f7 38 {
sam_grove 0:5e4bca1bd5f7 39 delete [] _buf;
sam_grove 0:5e4bca1bd5f7 40
sam_grove 0:5e4bca1bd5f7 41 return;
sam_grove 0:5e4bca1bd5f7 42 }
sam_grove 0:5e4bca1bd5f7 43
sam_grove 0:5e4bca1bd5f7 44 template <class T>
ansond 5:7b754354b99c 45 uint32_t Buffer<T>::getSize()
ansond 5:7b754354b99c 46 {
ansond 5:7b754354b99c 47 return this->_size;
ansond 5:7b754354b99c 48 }
ansond 5:7b754354b99c 49
ansond 5:7b754354b99c 50 template <class T>
sam_grove 0:5e4bca1bd5f7 51 void Buffer<T>::clear(void)
sam_grove 0:5e4bca1bd5f7 52 {
sam_grove 0:5e4bca1bd5f7 53 _wloc = 0;
sam_grove 0:5e4bca1bd5f7 54 _rloc = 0;
sam_grove 1:490224f41c09 55 memset(_buf, 0, _size);
sam_grove 0:5e4bca1bd5f7 56
sam_grove 0:5e4bca1bd5f7 57 return;
sam_grove 0:5e4bca1bd5f7 58 }
sam_grove 0:5e4bca1bd5f7 59
sam_grove 0:5e4bca1bd5f7 60 template <class T>
sam_grove 2:d13a72146516 61 uint32_t Buffer<T>::peek(char c)
sam_grove 2:d13a72146516 62 {
sam_grove 2:d13a72146516 63 return 1;
sam_grove 2:d13a72146516 64 }
sam_grove 2:d13a72146516 65
sam_grove 1:490224f41c09 66 // make the linker aware of some possible types
sam_grove 0:5e4bca1bd5f7 67 template class Buffer<uint8_t>;
sam_grove 0:5e4bca1bd5f7 68 template class Buffer<int8_t>;
sam_grove 0:5e4bca1bd5f7 69 template class Buffer<uint16_t>;
sam_grove 0:5e4bca1bd5f7 70 template class Buffer<int16_t>;
sam_grove 0:5e4bca1bd5f7 71 template class Buffer<uint32_t>;
sam_grove 0:5e4bca1bd5f7 72 template class Buffer<int32_t>;
sam_grove 0:5e4bca1bd5f7 73 template class Buffer<uint64_t>;
sam_grove 0:5e4bca1bd5f7 74 template class Buffer<int64_t>;
sam_grove 0:5e4bca1bd5f7 75 template class Buffer<char>;
sam_grove 0:5e4bca1bd5f7 76 template class Buffer<wchar_t>;