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/* SPDX-License-Identifier: GPL-2.0 */
/*
* TCP mytcp congestion control interface
*/
#ifndef __TCP_mytcp_H
#define __TCP_mytcp_H 1
//extern int mytcp_flow_num; //****the num of mytcp flow*****//
/* mytcp variables */
struct mytcp {
u32 beg_snd_nxt; /* right edge during last RTT */
u32 beg_snd_cwnd; /* saves the size of the cwnd */
u8 doing_mytcp_now;/* if true, do mytcp for this RTT */
// u16 count_i; /* # of RTTs measured within last RTT */
// u32 RTT_i; /* min of RTTs measured within last RTT (in usec) */
// u32 RTT_i_last;
// u32 sum_RTT_i;
// u32 rtt_of_this_packet;
// u32 standard_rtt;
// u32 sum_RTT_i_last;
u32 cwnd_last;
u32 one_full_ronund_send;
u32 threshold;
// u16 num_i;
// u16 full_pipe_flag;
u32 cwnd_hold;
u16 full_flag_1;
u16 full_flag_2;
u16 full_flag_3;
u16 cong_flag;
u32 queue_last;
u32 queue_now;
u16 cntRTT;
int loss_cnt;
u16 throughput_now;
u16 max_queue_within_t;
u16 min_queue_within_t;
u16 mytcp_max_driver_queue;
u16 mytcp_min_driver_queue;
// u16 max_queue_last;
u16 max_queue_first;
u16 max_queue_now;
u16 cwnd_first;
u16 min_last;
u64 time_last;
u64 time_now;
u16 min_queue;
u16 inflight_2pre;
u16 inflight_1pre;
u16 inflight_now;
// u16 slow_start_end;
// u32 slow_start_end_cwnd;
// u32 minRTT;
u32 min_rtt;
u32 baseRTT;
// u16 queue_update;
// u16 num_i_last;
// u32 average_RTT_i;
// u32 average_RTT_i_last;
// u32 i_interval_stamp; /* the min of all mytcp RTT measurements seen (in usec) */
// u16 start_indicator;
// u16 update;
};
void tcp_mytcp_init(struct sock *sk);
void tcp_mytcp_state(struct sock *sk, u8 ca_state);
void tcp_mytcp_pkts_acked(struct sock *sk, const struct ack_sample *sample);
void tcp_mytcp_cwnd_event(struct sock *sk, enum tcp_ca_event event);
size_t tcp_mytcp_get_info(struct sock *sk, u32 ext, int *attr,
union tcp_cc_info *info);
#endif /* __TCP_mytcp_H */
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