tcppersist.c,v

来自「关于TCP方面的」· 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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@/* tcppersist.c - tcppersist */

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

/*------------------------------------------------------------------------
 *  tcppersist - handle events while the send window is closed
 *------------------------------------------------------------------------
 */
int tcppersist(tcbnum, event)
int	tcbnum, event;
{
	struct	tcb	*ptcb = &tcbtab[tcbnum];

	if (event != PERSIST)
		return OK;	/* ignore everything else */
	tcpsend(tcbnum, TSF_REXMT);
	ptcb->tcb_persist = min(ptcb->tcb_persist<<1, TCP_MAXPRS);
	tmset(tcps_oport, TCPQLEN, MKEVENT(PERSIST, tcbnum),
		ptcb->tcb_persist);
	return OK;
}
@


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