three_rates_modules-l-zmg/tr_queue.h

#ifndef _TR_QUEUE_H_
#define _TR_QUEUE_H_

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <string>
#include <pthread.h>
#include <iostream>

using namespace  std;

class tr_queue 
{
public:
	tr_queue(unsigned int size);
	~tr_queue();
	bool initialize();
	unsigned int get(unsigned char *buffer, unsigned int len);
	unsigned int put(const unsigned char *buffer, unsigned int len);
	inline void clean()
	{
		m_nin = m_nout = 0;
	}
	inline unsigned int get_datalen() const
	{
		return m_nin - m_nout;
	}
private:
	inline bool is_power_of_2(unsigned long n)
	{
		return (n != 0 && ((n & (n - 1)) == 0)); 
	}
	inline unsigned long roundup_power_of_two(unsigned long val);
private:
	unsigned int   m_nsize;
	unsigned int   m_nin; 
	unsigned int   m_nout;
	unsigned char* m_pbuffer;
};

#endif