/**
 *
 * \section COPYRIGHT
 *
 * Copyright 2013-2015 Software Radio Systems Limited
 *
 * \section LICENSE
 *
 * This file is part of the srsUE library.
 *
 * srsUE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * srsUE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * A copy of the GNU Affero General Public License can be found in
 * the LICENSE file in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/.
 *
 */

#ifndef PDUPROC_H
#define PDUPROC_H

#include "srslte/common/log.h"
#include "srslte/common/block_queue.h"
#include "srslte/common/buffer_pool.h"
#include "srslte/common/timers.h"
#include "srslte/common/pdu.h"

/* Logical Channel Demultiplexing and MAC CE dissassemble */   


namespace srslte {

class pdu_queue
{
public:
  class process_callback
  {
    public: 
      virtual void process_pdu(uint8_t *buff, uint32_t len) = 0;
  };

  pdu_queue(uint32_t pool_size = DEFAULT_POOL_SIZE) : pool(pool_size), callback(NULL), log_h(NULL) {}
  void init(process_callback *callback, log* log_h_);

  uint8_t* request(uint32_t len);  
  void     deallocate(uint8_t* pdu);
  void     push(uint8_t *ptr, uint32_t len);
  
  bool   process_pdus();
  
private:
  const static int DEFAULT_POOL_SIZE = 64; // Number of PDU buffers in total  
  const static int MAX_PDU_LEN     = 150*1024/8; // ~ 150 Mbps  
 
  typedef struct  {
    uint8_t  ptr[MAX_PDU_LEN]; 
    uint32_t len; 
  } pdu_t; 
  
  block_queue<pdu_t*> pdu_q; 
  buffer_pool<pdu_t>  pool;
  
  process_callback   *callback;   
  log                *log_h;
};

} // namespace srslte

#endif // PDUPROC_H