The send driver methods for CongURE TCP Reno

Many other congestion control mechanisms are just adaptations of TCP Reno, so this makes the methods of CongURE implementation of TCP Reno available to other CongURE - A Congestion control framework modules. More...

Detailed Description

Many other congestion control mechanisms are just adaptations of TCP Reno, so this makes the methods of CongURE implementation of TCP Reno available to other CongURE - A Congestion control framework modules.

Use module congure_reno_methods to only compile in these modules, but not the driver for congure_reno_snd_t or congure_reno_snd_setup().

Functions
void	congure_reno_set_mss (congure_reno_snd_t *c, congure_wnd_size_t mss)
	Set sender maximum segment size.
void	congure_reno_snd_init (congure_snd_t *c, void *ctx)
	Use to override congure_snd_driver_t::init.
int32_t	congure_reno_snd_inter_msg_interval (congure_snd_t *c, unsigned msg_size)
	Use to override congure_snd_driver_t::inter_msg_interval.
void	congure_reno_snd_report_msg_sent (congure_snd_t *c, unsigned msg_size)
	Use to override congure_snd_driver_t::report_msg_sent.
void	congure_reno_snd_report_msg_discarded (congure_snd_t *c, unsigned msg_size)
	Use to override congure_snd_driver_t::report_msg_discarded.
void	congure_reno_snd_report_msgs_timeout (congure_snd_t *c, congure_snd_msg_t *msgs)
	Use to override congure_snd_driver_t::report_msgs_timeout.
void	congure_reno_snd_report_msgs_lost (congure_snd_t *c, congure_snd_msg_t *msgs)
	Use to override congure_snd_driver_t::report_msgs_lost.
void	congure_reno_snd_report_msg_acked (congure_snd_t *c, congure_snd_msg_t *msg, congure_snd_ack_t *ack)
	Use to override congure_snd_driver_t::report_msg_acked.
void	congure_reno_snd_report_ecn_ce (congure_snd_t *c, ztimer_now_t time)
	Use to override congure_snd_driver_t::report_ecn_ce.

Function Documentation

congure_reno_set_mss()

void congure_reno_set_mss	(	congure_reno_snd_t *	c,
		congure_wnd_size_t	mss
	)

Set sender maximum segment size.

Attention

This resets congure_reno_snd_t::cwnd to the new initial window size based on mss. So use with care.

Parameters

[in]	c	A CongURE state object
[in]	mss	Maximum segment size of the sender in caller-defined units

congure_reno_snd_init()

void congure_reno_snd_init	(	congure_snd_t *	c,
		void *	ctx
	)

Use to override congure_snd_driver_t::init.

Parameters

[in,out]	c	The CongURE object to initialize.
[in]	ctx	Context for callbacks specific to the congestion control (such as a TCP PCB). May be NULL.

congure_reno_snd_inter_msg_interval()

int32_t congure_reno_snd_inter_msg_interval	(	congure_snd_t *	c,
		unsigned	msg_size
	)

Use to override congure_snd_driver_t::inter_msg_interval.

Parameters

[in,out]	c	The CongURE object to initialize.
[in]	msg_size	Size of the next message to sent in caller-defined unit.

Returns

Always -1.

congure_reno_snd_report_ecn_ce()

void congure_reno_snd_report_ecn_ce	(	congure_snd_t *	c,
		ztimer_now_t	time
	)

Use to override congure_snd_driver_t::report_ecn_ce.

Parameters

[in]	c	The CongURE state object.
[in]	time	Timestamp in milliseconds of the message the CE event occurred for was sent.

congure_reno_snd_report_msg_acked()

void congure_reno_snd_report_msg_acked	(	congure_snd_t *	c,
		congure_snd_msg_t *	msg,
		congure_snd_ack_t *	ack
	)

Use to override congure_snd_driver_t::report_msg_acked.

Parameters

[in]	c	The CongURE state object.
[in]	msg	The ACK'd message.
[in]	ack	The received ACK.

congure_reno_snd_report_msg_discarded()

void congure_reno_snd_report_msg_discarded	(	congure_snd_t *	c,
		unsigned	msg_size
	)

Use to override congure_snd_driver_t::report_msg_discarded.

Parameters

[in]	c	The CongURE state object.
[in]	msg_size	Size of the discarded message in caller-defined unit.

congure_reno_snd_report_msg_sent()

void congure_reno_snd_report_msg_sent	(	congure_snd_t *	c,
		unsigned	msg_size
	)

Use to override congure_snd_driver_t::report_msg_sent.

Parameters

[in]	c	The CongURE state object.
[in]	msg_size	Size of the message in caller-defined unit.

congure_reno_snd_report_msgs_lost()

void congure_reno_snd_report_msgs_lost	(	congure_snd_t *	c,
		congure_snd_msg_t *	msgs
	)

Use to override congure_snd_driver_t::report_msgs_lost.

Parameters

[in]	c	The CongURE state object.
[in]	msgs	A collection of messages for which the ACK timed out. The list must not be changed by the method.

congure_reno_snd_report_msgs_timeout()

void congure_reno_snd_report_msgs_timeout	(	congure_snd_t *	c,
		congure_snd_msg_t *	msgs
	)

Use to override congure_snd_driver_t::report_msgs_timeout.

Parameters

[in]	c	The CongURE state object.
[in]	msgs	A collection of messages that are known to be lost. The list must not be changed by the method.