code: drawterm

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devip: track connection initialization time as mtime

sync from 9front

--- a/kern/devip.c

+++ b/kern/devip.c

@@ -40,6 +40,8 @@

 #define QID(p, c, y) 	(((p)<<16) | ((c)<<4) | (y))

 #define ipzero(x)	memset(x, 0, IPaddrlen)

+#define DEVDOT -2

+

 typedef struct Proto	Proto;

 typedef struct Conv	Conv;

 struct Conv

@@ -55,6 +57,7 @@

 	uchar	raddr[IPaddrlen];

 	ushort	rport;

 	int	restricted;

+	ulong	ctime;

 	char	cerr[KNAMELEN];

 	Proto*	p;

 };

@@ -94,13 +97,13 @@

 		return -1;

 	case Qctl:

 		devdir(c, q, "ctl", 0, cv->owner, cv->perm, dp);

-		return 1;

+		goto done;

 	case Qdata:

 		devdir(c, q, "data", 0, cv->owner, cv->perm, dp);

-		return 1;

+		goto done;

 	case Qlisten:

 		devdir(c, q, "listen", 0, cv->owner, cv->perm, dp);

-		return 1;

+		goto done;

 	case Qlocal:

 		p = "local";

 		break;

@@ -112,6 +115,8 @@

 		break;

 	}

 	devdir(c, q, p, 0, cv->owner, 0444, dp);

+done:

+	dp->mtime = cv->ctime;

 	return 1;

 }

@@ -159,7 +164,7 @@

 	switch(TYPE(c->qid)) {

 	case Qtopdir:

-		if(s == DEVDOTDOT){

+		if(s == DEVDOTDOT || s == DEVDOT){

 			mkqid(&q, QID(0, 0, Qtopdir), 0, QTDIR);

 			snprint(up->genbuf, sizeof up->genbuf, "#I%lud", c->dev);

 			devdir(c, q, up->genbuf, 0, network, 0555, dp);

@@ -166,6 +171,7 @@

 			return 1;

 		}

 		if(s < np) {

+	Protodir:

 			mkqid(&q, QID(s, 0, Qprotodir), 0, QTDIR);

 			devdir(c, q, proto[s].name, 0, network, 0555, dp);

 			return 1;

@@ -181,11 +187,17 @@

 			devdir(c, q, up->genbuf, 0, network, 0555, dp);

 			return 1;

 		}

+		if(s == DEVDOT){

+			s = PROTO(c->qid);

+			goto Protodir;

+		}

 		if(s < proto[PROTO(c->qid)].nc) {

+	Convdir:

 			cv = proto[PROTO(c->qid)].conv[s];

 			snprint(up->genbuf, sizeof up->genbuf, "%d", s);

 			mkqid(&q, QID(PROTO(c->qid), s, Qconvdir), 0, QTDIR);

 			devdir(c, q, up->genbuf, 0, cv->owner, 0555, dp);

+			dp->mtime = cv->ctime;

 			return 1;

 		}

 		s -= proto[PROTO(c->qid)].nc;

@@ -199,6 +211,10 @@

 			devdir(c, q, proto[s].name, 0, network, 0555, dp);

 			return 1;

 		}

+		if(s == DEVDOT){

+			s = CONV(c->qid);

+			goto Convdir;

+		}

 		return ip3gen(c, s+Qconvbase, dp);

 	case Qctl:

 	case Qdata:

@@ -269,6 +285,16 @@

 int

 ipstat(Chan *c, uchar *dp, int n)

 {

+	Dir d;

+

+	if(c->qid.type == QTDIR){

+		ipgen(c, nil, nil, 0, DEVDOT, &d);

+		n = convD2M(&d, dp, n);

+		if(n == 0)

+			error(Ebadarg);

+		return n;

+	}

+

 	return devstat(c, dp, n, 0, 0, ipgen);

 }

@@ -631,6 +657,7 @@

 	c->lport = 0;

 	c->rport = 0;

 	c->sfd = nfd;

+	c->ctime = seconds();

 	unlock(&c->r.lk);

 	unlock(&p->l);