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/*
* buffer.h: Web video plugin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
* $Id$
*/
#ifndef __WEBVIDEO_BUFFER_H
#define __WEBVIDEO_BUFFER_H
#include <unistd.h>
// --- cMemoryBuffer -------------------------------------------------------
// FIFO character buffer.
class cMemoryBuffer {
private:
char *buf;
size_t offset;
size_t len;
size_t capacity;
protected:
size_t Free() { return capacity-len-offset; }
virtual void Realloc(size_t newsize);
public:
cMemoryBuffer(size_t prealloc = 10*1024);
virtual ~cMemoryBuffer();
// Put data into the end of the buffer
virtual ssize_t Put(const char *data, size_t length);
// Put data from a file descriptor fd to the buffer
virtual ssize_t PutFromFile(int fd, size_t length);
// The pointer to the beginning of the buffer. Only valid until the
// next Put() or PutFromFile().
virtual char *Get() { return &buf[offset]; }
// Remove first n bytes from the buffer.
void Pop(size_t n);
// Returns the current length of the buffer
virtual size_t Length() { return len; }
};
#endif // __WEBVIDEO_BUFFER_H
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