gauthier
c7518ecf42
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7885 818b1a75-f10b-46b9-bf7c-635c3b92a50f
82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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/*! \file pdcp_sequence_manager.h
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* \brief PDCP Sequence Numbering Methods
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* \author Baris Demiray
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* \date 2011
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*/
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#ifndef PDCP_SEQUENCE_MANAGER_H
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#define PDCP_SEQUENCE_MANAGER_H
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#include "pdcp.h"
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/**
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* Initializes sequence numbering state
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* @param pdcp_entity The PDCP entity to be initialized
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* @return none
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*/
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boolean_t pdcp_init_seq_numbers(pdcp_t* pdcp_entity);
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/**
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* Checks if incoming PDCP entitiy pointer and relevant sequence number size is valid
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* @return TRUE (0x01) if it is valid, FALSE (0x00) otherwise
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*/
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boolean_t pdcp_is_seq_num_size_valid(pdcp_t* pdcp_entity);
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/**
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* Check if SN number is in the range according to SN size
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* @return TRUE if it is valid, FALSE otherwise
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*/
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boolean_t pdcp_is_seq_num_valid(uint16_t seq_num, uint8_t seq_num_size);
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/**
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* Returns the maximum allowed sequence number value for given size of SN field
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* @return Max sequence number value
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*/
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uint16_t pdcp_calculate_max_seq_num_for_given_size(uint8_t seq_num_size);
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/**
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* Returns the next TX sequence number for given PDCP entity
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*/
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uint16_t pdcp_get_next_tx_seq_number(pdcp_t* pdcp_entity);
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/**
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* Advances the RX window state of given PDCP entity upon successfull receipt of a SDU
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*/
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boolean_t pdcp_advance_rx_window(pdcp_t* pdcp_entity);
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/**
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* Checks if incoming PDU has a sequence number in accordance with the RX window
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* @return TRUE if it is valid, FALSE otherwise
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*/
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boolean_t pdcp_is_rx_seq_number_valid(uint16_t seq_num, pdcp_t* pdcp_entity,srb_flag_t srb_flagP);
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/**
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* Updates missing PDU bitmap with incoming sequence number
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* @return TRUE if successful, FALSE otherwise
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*/
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boolean_t pdcp_mark_current_pdu_as_received(uint16_t seq_num, pdcp_t* pdcp_entity);
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#endif
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