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@0:5e4bca1bd5f7, 2013-05-10 (annotated)

Committer:
sam_grove
Date:
Fri May 10 18:34:16 2013 +0000
Revision:
0:5e4bca1bd5f7
Child:
1:490224f41c09
First version - implements basic functionality and overloaded members

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sam_grove 0:5e4bca1bd5f7 1
sam_grove 0:5e4bca1bd5f7 2 #include "Buffer.h"
sam_grove 0:5e4bca1bd5f7 3
sam_grove 0:5e4bca1bd5f7 4 template <class T>
sam_grove 0:5e4bca1bd5f7 5 Buffer<T>::Buffer(BUFFER_SIZE size)
sam_grove 0:5e4bca1bd5f7 6 {
sam_grove 0:5e4bca1bd5f7 7 _buf = new T [size];
sam_grove 0:5e4bca1bd5f7 8 _size = size;
sam_grove 0:5e4bca1bd5f7 9 clear();
sam_grove 0:5e4bca1bd5f7 10
sam_grove 0:5e4bca1bd5f7 11 return;
sam_grove 0:5e4bca1bd5f7 12 }
sam_grove 0:5e4bca1bd5f7 13
sam_grove 0:5e4bca1bd5f7 14 template <class T>
sam_grove 0:5e4bca1bd5f7 15 Buffer<T>::~Buffer()
sam_grove 0:5e4bca1bd5f7 16 {
sam_grove 0:5e4bca1bd5f7 17 delete [] _buf;
sam_grove 0:5e4bca1bd5f7 18
sam_grove 0:5e4bca1bd5f7 19 return;
sam_grove 0:5e4bca1bd5f7 20 }
sam_grove 0:5e4bca1bd5f7 21
sam_grove 0:5e4bca1bd5f7 22 template <class T>
sam_grove 0:5e4bca1bd5f7 23 void Buffer<T>::put(T data)
sam_grove 0:5e4bca1bd5f7 24 {
sam_grove 0:5e4bca1bd5f7 25 _buf[_wloc++] = data;
sam_grove 0:5e4bca1bd5f7 26 _wloc &= (_size-1);
sam_grove 0:5e4bca1bd5f7 27
sam_grove 0:5e4bca1bd5f7 28 return;
sam_grove 0:5e4bca1bd5f7 29 }
sam_grove 0:5e4bca1bd5f7 30
sam_grove 0:5e4bca1bd5f7 31 template <class T>
sam_grove 0:5e4bca1bd5f7 32 T Buffer<T>::get(void)
sam_grove 0:5e4bca1bd5f7 33 {
sam_grove 0:5e4bca1bd5f7 34 T data_pos = _buf[_rloc++];
sam_grove 0:5e4bca1bd5f7 35 _rloc &= (_size-1);
sam_grove 0:5e4bca1bd5f7 36
sam_grove 0:5e4bca1bd5f7 37 return data_pos;
sam_grove 0:5e4bca1bd5f7 38 }
sam_grove 0:5e4bca1bd5f7 39
sam_grove 0:5e4bca1bd5f7 40 template <class T>
sam_grove 0:5e4bca1bd5f7 41 T *Buffer<T>::head(void)
sam_grove 0:5e4bca1bd5f7 42 {
sam_grove 0:5e4bca1bd5f7 43 T *data_pos = &_buf[0];
sam_grove 0:5e4bca1bd5f7 44
sam_grove 0:5e4bca1bd5f7 45 return data_pos;
sam_grove 0:5e4bca1bd5f7 46 }
sam_grove 0:5e4bca1bd5f7 47
sam_grove 0:5e4bca1bd5f7 48 template <class T>
sam_grove 0:5e4bca1bd5f7 49 void Buffer<T>::clear(void)
sam_grove 0:5e4bca1bd5f7 50 {
sam_grove 0:5e4bca1bd5f7 51 memset(_buf, 0, _size);
sam_grove 0:5e4bca1bd5f7 52 _wloc = 0;
sam_grove 0:5e4bca1bd5f7 53 _rloc = 0;
sam_grove 0:5e4bca1bd5f7 54
sam_grove 0:5e4bca1bd5f7 55 return;
sam_grove 0:5e4bca1bd5f7 56 }
sam_grove 0:5e4bca1bd5f7 57
sam_grove 0:5e4bca1bd5f7 58 template <class T>
sam_grove 0:5e4bca1bd5f7 59 uint32_t Buffer<T>::available(void)
sam_grove 0:5e4bca1bd5f7 60 {
sam_grove 0:5e4bca1bd5f7 61 return (_wloc == _rloc) ? 0 : 1;
sam_grove 0:5e4bca1bd5f7 62 }
sam_grove 0:5e4bca1bd5f7 63
sam_grove 0:5e4bca1bd5f7 64 template class Buffer<uint8_t>;
sam_grove 0:5e4bca1bd5f7 65 template class Buffer<int8_t>;
sam_grove 0:5e4bca1bd5f7 66 template class Buffer<uint16_t>;
sam_grove 0:5e4bca1bd5f7 67 template class Buffer<int16_t>;
sam_grove 0:5e4bca1bd5f7 68 template class Buffer<uint32_t>;
sam_grove 0:5e4bca1bd5f7 69 template class Buffer<int32_t>;
sam_grove 0:5e4bca1bd5f7 70 template class Buffer<uint64_t>;
sam_grove 0:5e4bca1bd5f7 71 template class Buffer<int64_t>;
sam_grove 0:5e4bca1bd5f7 72 template class Buffer<char>;
sam_grove 0:5e4bca1bd5f7 73 template class Buffer<wchar_t>;
sam_grove 0:5e4bca1bd5f7 74