tcpdodat.c,v

来自「TCP-IP红宝书源代码」· C,V 代码 · 共 90 行

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date	97.09.21.19.29.52;	author dls;	state Dist;
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1.1
date	94.01.14.03.51.20;	author dls;	state v2e1;
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@pre-3e code
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@/* tcpdodat.c - tcpdodat */

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

/*------------------------------------------------------------------------
 *  tcpdodat -  do input data processing
 *------------------------------------------------------------------------
 */
int tcpdodat(ptcb, ptcp, first, datalen)
struct	tcb	*ptcb;
struct	tcp	*ptcp;
tcpseq		first;
int		datalen;
{
	int	wakeup = 0;

	if (ptcb->tcb_rnext == first) {
		if (datalen > 0) {
			tfcoalesce(ptcb, datalen, ptcp);
			ptcb->tcb_flags |= TCBF_NEEDOUT;
			wakeup++;
		}
		if (ptcp->tcp_code & TCPF_FIN) {
			ptcb->tcb_flags |= TCBF_RDONE|TCBF_NEEDOUT;
			ptcb->tcb_rnext++;
			wakeup++;
		}
		if (ptcp->tcp_code & (TCPF_PSH | TCPF_URG)) {
			ptcb->tcb_flags |= TCBF_PUSH;
			wakeup++;
		}
		if (wakeup)
			tcpwakeup(READERS, ptcb);
	} else {
		/* process delayed controls */
		if (ptcp->tcp_code & TCPF_FIN)
			ptcb->tcb_finseq = ptcp->tcp_seq + datalen;
		if (ptcp->tcp_code & (TCPF_PSH | TCPF_URG))
			ptcb->tcb_pushseq = ptcp->tcp_seq + datalen;
		ptcp->tcp_code &= ~(TCPF_FIN|TCPF_PSH);
		tfinsert(ptcb, first, datalen);
	}
	return OK;
}
@


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@Initial revision
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		if (ptcp->tcp_code & TCPF_PSH) {
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		if (ptcp->tcp_code & TCPF_PSH)
@