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/*
* Copyright (c) 2020 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Rate estimation
*/
#ifndef SRC_VNET_TCP_TCP_BT_H_
#define SRC_VNET_TCP_TCP_BT_H_
#include <vnet/tcp/tcp_types.h>
/**
* Byte tracker initialize
*
* @param tc connection for which the byte tracker should be allocated and
* initialized
*/
void tcp_bt_init (tcp_connection_t * tc);
/**
* Byte tracker cleanup
*
* @param tc connection for which the byte tracker should be cleaned up
*/
void tcp_bt_cleanup (tcp_connection_t * tc);
/**
* Flush byte tracker samples
*
* @param tc tcp connection for which samples should be flushed
*/
void tcp_bt_flush_samples (tcp_connection_t * tc);
/**
* Track a tcp tx burst
*
* @param tc tcp connection
*/
void tcp_bt_track_tx (tcp_connection_t * tc, u32 len);
/**
* Track a tcp retransmission
*
* @param tc tcp connection
* @param start start sequence number
* @param end end sequence number
*/
void tcp_bt_track_rxt (tcp_connection_t * tc, u32 start, u32 end);
/**
* Generate a delivery rate sample from recently acked bytes
*
* @param tc tcp connection
* @param rs resulting rate sample
*/
void tcp_bt_sample_delivery_rate (tcp_connection_t * tc,
tcp_rate_sample_t * rs);
/**
* Check if sample to be generated is app limited
*
* @param tc tcp connection
*/
void tcp_bt_check_app_limited (tcp_connection_t * tc);
/**
* Check if the byte tracker is in sane state
*
* Should be used only for testing
*
* @param bt byte tracker
*/
int tcp_bt_is_sane (tcp_byte_tracker_t * bt);
format_function_t format_tcp_bt;
#endif /* SRC_VNET_TCP_TCP_BT_H_ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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