tcpkick.c,v

来自「TCP-IP红宝书源代码」· C,V 代码 · 共 61 行

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date	97.09.21.19.29.52;	author dls;	state Dist;
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date	94.01.14.03.51.20;	author dls;	state v2e1;
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@/* tcpkick.c - tcpkick */

#include <conf.h>
#include <kernel.h>
#include <network.h>

/*------------------------------------------------------------------------
 *  tcpkick -  make sure we send a packet soon
 *------------------------------------------------------------------------
 */
int tcpkick(ptcb)
struct	tcb	*ptcb;
{
	int	tcbnum = ptcb - &tcbtab[0];	/* for MKEVENT() */
	int	tv;

	tv = MKEVENT(SEND, tcbnum);
	if (ptcb->tcb_flags & TCBF_DELACK && !tmleft(tcps_oport, tv))
		tmset(tcps_oport, TCPQLEN, tv, TCP_ACKDELAY);
	else if (pcount(tcps_oport) < TCPQLEN)
		psend(tcps_oport, tv);	/* send now */
	return OK;
}
@


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