tcputil.h File Reference

TCP utility function prototypes. More...

#include <sys/device.h>
#include <sys/sock_var.h>

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Defines
#define	SeqIsBetween(x, low, high)   ((uint32_t)(x - low) <= (uint32_t)(high - low))
	Wraparound-safe TCP sequence number comparison, (low <= x <= high)
#define	SeqIsAfter(x, low)   ((int32_t)(low - x) < 0)
	Wraparound-safe TCP sequence number comparison, (x > low)
Functions
void	NutTcpCalcRtt (TCPSOCKET *sock)

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Detailed Description

TCP utility function prototypes.

Definition in file tcputil.h.

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Define Documentation

#define SeqIsBetween	(		x,
			low,
			high
	)		((uint32_t)(x - low) <= (uint32_t)(high - low))

Wraparound-safe TCP sequence number comparison, (low <= x <= high)

Returns true if x is between low and high inclusive, false otherwise.

Definition at line 100 of file tcputil.h.

#define SeqIsAfter	(		x,
			low
	)		((int32_t)(low - x) < 0)

Wraparound-safe TCP sequence number comparison, (x > low)

Returns true if number x comes after low.

Values between low ... low+1 - (1<<31) are in the past Values between low+1 ... low + (1<<31) are in the future

Definition at line 110 of file tcputil.h.