srsLTE/lib/include/srslte/mac/pdu_queue.h

78 lines
2.1 KiB
C++

/*
* Copyright 2013-2020 Software Radio Systems Limited
*
* This file is part of srsLTE.
*
* srsLTE 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.
*
* srsLTE 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 SRSLTE_PDU_QUEUE_H
#define SRSLTE_PDU_QUEUE_H
#include "srslte/common/block_queue.h"
#include "srslte/common/buffer_pool.h"
#include "srslte/common/log.h"
#include "srslte/common/timers.h"
#include "srslte/mac/pdu.h"
/* Logical Channel Demultiplexing and MAC CE dissassemble */
namespace srslte {
class pdu_queue
{
public:
typedef enum { DCH, BCH, MCH } channel_t;
class process_callback
{
public:
virtual void process_pdu(uint8_t* buff, uint32_t len, channel_t channel) = 0;
};
pdu_queue(uint32_t pool_size = DEFAULT_POOL_SIZE) : pool(pool_size), callback(NULL) {}
void init(process_callback* callback, log_ref log_h_);
uint8_t* request(uint32_t len);
void deallocate(uint8_t* pdu);
void push(uint8_t* ptr, uint32_t len, channel_t channel = DCH);
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;
channel_t channel;
#ifdef SRSLTE_BUFFER_POOL_LOG_ENABLED
char debug_name[128];
#endif
} pdu_t;
block_queue<pdu_t*> pdu_q;
buffer_pool<pdu_t> pool;
process_callback* callback;
log_ref log_h;
};
} // namespace srslte
#endif // SRSLTE_PDU_QUEUE_H