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

Committer:
sam_grove
Date:
2013-05-10
Revision:
0:5e4bca1bd5f7
Child:
1:490224f41c09

File content as of revision 0:5e4bca1bd5f7:


#include "Buffer.h"

template <class T>
Buffer<T>::Buffer(BUFFER_SIZE size)
{
    _buf = new T [size];
    _size = size;
    clear();
    
    return;
}

template <class T>
Buffer<T>::~Buffer()
{
    delete [] _buf;
    
    return;
}

template <class T>
void Buffer<T>::put(T data)
{
    _buf[_wloc++] = data;
    _wloc &= (_size-1);
    
    return;
}

template <class T>
T Buffer<T>::get(void)
{
    T data_pos = _buf[_rloc++];
    _rloc &= (_size-1);
    
    return data_pos;
}

template <class T>
T *Buffer<T>::head(void)
{
    T *data_pos = &_buf[0];
    
    return data_pos;
}

template <class T>
void Buffer<T>::clear(void)
{
    memset(_buf, 0, _size);
    _wloc = 0;
    _rloc = 0;
    
    return;
}

template <class T>
uint32_t Buffer<T>::available(void)
{
    return (_wloc == _rloc) ? 0 : 1;
}

template class Buffer<uint8_t>;
template class Buffer<int8_t>;
template class Buffer<uint16_t>;
template class Buffer<int16_t>;
template class Buffer<uint32_t>;
template class Buffer<int32_t>;
template class Buffer<uint64_t>;
template class Buffer<int64_t>;
template class Buffer<char>;
template class Buffer<wchar_t>;