From: Fredrik Tolf <fredrik@dolda2000.com>
Date: Sun, 8 Jun 2008 12:02:18 +0000 (+0200)
Subject: First potentially working version of the transsocket.
X-Git-Tag: 1.3~18
X-Git-Url: http://dolda2000.com/gitweb/?p=doldaconnect.git;a=commitdiff_plain;h=1ff9e8ea002024dee061378ae5871619d6b979dd

First potentially working version of the transsocket.
---

diff --git a/daemon/fnet-dc.c b/daemon/fnet-dc.c
index 36e4297..8f83123 100644
--- a/daemon/fnet-dc.c
+++ b/daemon/fnet-dc.c
@@ -1623,14 +1623,14 @@ static void cmd_direction(struct socket *sk, struct dcpeer *peer, char *cmd, cha
 		peer->close = 1;
 		return;
 	    }
-	    transfer = newupload(peer->fn, &dcnet, peer->wcsname, peer->trpipe = mktrpipe(peer));
+	    transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
 	} else {
 	    if((transfer = finddownload(peer->wcsname)) == NULL)
 	    {
 		peer->close = 1;
 		return;
 	    }
-	    transferattach(transfer, peer->trpipe = mktrpipe(peer));
+	    transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
 	    transfersetstate(transfer, TRNS_HS);
 	}
 	transfersetnick(transfer, peer->wcsname);
@@ -1675,10 +1675,10 @@ static void cmd_peerlock(struct socket *sk, struct dcpeer *peer, char *cmd, char
 		return;
 	    }
 	    peer->direction = TRNSD_UP;
-	    transfer = newupload(peer->fn, &dcnet, peer->wcsname, peer->trpipe = mktrpipe(peer));
+	    transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
 	} else {
 	    peer->direction = TRNSD_DOWN;
-	    transferattach(transfer, peer->trpipe = mktrpipe(peer));
+	    transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
 	    transfersetstate(transfer, TRNS_HS);
 	}
 	transfersetnick(transfer, peer->wcsname);
@@ -2675,22 +2675,6 @@ static struct command peercmds[] =
 };
 #undef cc
 
-static struct socket *mktrpipe(struct dcpeer *peer)
-{
-    struct socket *sk;
-    
-    sk = netsockpipe();
-    sk->data = peer;
-    return(sk);
-}
-
-static void dctransdetach(struct transfer *transfer, struct dcpeer *peer)
-{
-    CBUNREG(transfer, trans_filterout, peer);
-    peer->transfer = NULL;
-    peer->close = 1;
-}
-
 static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
 {
     int ret;
@@ -2703,26 +2687,30 @@ static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
     {
 	if(sockqueueleft(peer->sk) > 0)
 	{
-	    if((buf = transfergetdata(transfer, &bufsize)) != NULL)
+	    if((buf = sockgetinbuf(peer->trpipe, &bufsize)) != NULL)
 	    {
-		if(peer->compress == CPRS_NONE)
-		{
-		    sockqueue(peer->sk, buf, bufsize);
-		} else if(peer->compress == CPRS_ZLIB) {
-		    cstr = peer->cprsdata;
-		    cstr->next_in = buf;
-		    cstr->avail_in = bufsize;
-		    while(cstr->avail_in > 0)
+		if((transfer->endpos >= 0) && (transfer->curpos + bufsize >= transfer->endpos))
+		    bufsize = transfer->endpos - transfer->curpos;
+		if(bufsize > 0) {
+		    if(peer->compress == CPRS_NONE)
 		    {
-			cstr->next_out = outbuf;
-			cstr->avail_out = sizeof(outbuf);
-			if((ret = deflate(cstr, 0)) != Z_OK)
+			sockqueue(peer->sk, buf, bufsize);
+		    } else if(peer->compress == CPRS_ZLIB) {
+			cstr = peer->cprsdata;
+			cstr->next_in = buf;
+			cstr->avail_in = bufsize;
+			while(cstr->avail_in > 0)
 			{
-			    flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
-			    freedcpeer(peer);
-			    return;
+			    cstr->next_out = outbuf;
+			    cstr->avail_out = sizeof(outbuf);
+			    if((ret = deflate(cstr, 0)) != Z_OK)
+			    {
+				flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
+				freedcpeer(peer);
+				return;
+			    }
+			    sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
 			}
-			sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
 		    }
 		}
 		free(buf);
@@ -2766,19 +2754,40 @@ static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
     }
 }
 
-static void dctransendofdata(struct transfer *transfer, struct dcpeer *peer)
+void trpiperead(struct socket *sk, struct dcpeer *peer)
+{
+    dctransgotdata(peer->transfer, peer);
+}
+
+void trpipewrite(struct socket *sk, struct dcpeer *peer)
+{
+}
+
+void trpipeerr(struct socket *sk, int errno, struct dcpeer *peer)
 {
     peer->state = PEER_SYNC;
-    dctransgotdata(transfer, peer);
+    dctransgotdata(peer->transfer, peer);
+    CBUNREG(peer->transfer, trans_filterout, peer);
+}
+
+static struct socket *mktrpipe(struct dcpeer *peer)
+{
+    struct socket *sk;
+    
+    sk = netsockpipe();
+    sk->data = peer;
+    sk->readcb = (void (*)(struct socket *, void *))trpiperead;
+    sk->writecb = (void (*)(struct socket *, void *))trpipewrite;
+    sk->errcb = (void (*)(struct socket *, int, void *))trpipeerr;
+    return(sk);
 }
 
 static void transread(struct socket *sk, struct dcpeer *peer)
 {
     void *buf;
     size_t bufsize;
-    struct transfer *transfer;
     
-    if(transferdatasize(peer->transfer) < 0)
+    if(sockqueueleft(peer->trpipe) < 0)
 	return;
     if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
 	return;
@@ -2788,23 +2797,17 @@ static void transread(struct socket *sk, struct dcpeer *peer)
 	freedcpeer(peer);
 	return;
     }
-    transferputdata(peer->transfer, buf, bufsize);
+    sockqueue(peer->trpipe, buf, bufsize);
     free(buf);
     if(peer->transfer->curpos >= peer->transfer->size)
     {
-	transfer = peer->transfer;
-	transferdetach(transfer);
-	transferendofdata(transfer);
+	closesock(peer->trpipe);
+	quitsock(peer->trpipe);
+	peer->close = 1;
 	return;
     }
 }
 
-static void dcwantdata(struct transfer *transfer, struct dcpeer *peer)
-{
-    if(transferdatasize(transfer) > 0)
-	transread(peer->sk, peer);
-}
-
 static void transerr(struct socket *sk, int err, struct dcpeer *peer)
 {
     struct transfer *transfer;
@@ -2814,8 +2817,9 @@ static void transerr(struct socket *sk, int err, struct dcpeer *peer)
 	freedcpeer(peer);
 	return;
     }
-    transferdetach(transfer);
-    transferendofdata(transfer);
+    closesock(peer->trpipe);
+    quitsock(peer->trpipe);
+    peer->close = 1;
 }
 
 static void transwrite(struct socket *sk, struct dcpeer *peer)
@@ -3133,10 +3137,11 @@ static void freedcpeer(struct dcpeer *peer)
 	peer->prev->next = peer->next;
     if(peer->trpipe != NULL) {
 	closesock(peer->trpipe);
-	putsock(peer->trpipe);
+	quitsock(peer->trpipe);
     }
     if(peer->transfer != NULL)
     {
+	CBUNREG(peer->transfer, trans_filterout, peer);
 	if(peer->transfer->dir == TRNSD_UP)
 	    peer->transfer->close = 1;
 	if(peer->transfer->dir == TRNSD_DOWN)
diff --git a/daemon/net.c b/daemon/net.c
index 6f83266..ed7ad9b 100644
--- a/daemon/net.c
+++ b/daemon/net.c
@@ -390,6 +390,14 @@ void putsock(struct socket *sk)
     }
 }
 
+void quitsock(struct socket *sk)
+{
+    sk->readcb = NULL;
+    sk->writecb = NULL;
+    sk->errcb = NULL;
+    putsock(sk);
+}
+
 static void linksock(struct scons **list, struct socket *sk)
 {
     struct scons *sc;
@@ -771,6 +779,18 @@ size_t sockgetdatalen(struct socket *sk)
 /*     return(sockgetdatalen(sk->back)); */
 /* } */
 
+size_t socktqueuesize(struct socket *sk)
+{
+    size_t ret;
+    
+    ret = 0;
+    while(1) {
+	ret += sockgetdatalen(sk->back);
+	if((sk = sk->back->pnext) == NULL)
+	    return(ret);
+    }
+}
+
 ssize_t sockqueueleft(struct socket *sk)
 {
     return(sk->back->maxbuf - sockgetdatalen(sk->back));
diff --git a/daemon/net.h b/daemon/net.h
index 9ae9650..b539860 100644
--- a/daemon/net.h
+++ b/daemon/net.h
@@ -87,6 +87,7 @@ void freedgbuf(struct dgrambuf *dg);
 void sockqueue(struct socket *sk, void *data, size_t size);
 void sockerror(struct socket *sk, int en);
 /* size_t sockqueuesize(struct socket *sk); */
+size_t socktqueuesize(struct socket *sk);
 ssize_t sockqueueleft(struct socket *sk);
 int netresolve(char *addr, void (*callback)(struct sockaddr *addr, int addrlen, void *data), void *data);
 struct socket *netcsdgram(struct sockaddr *name, socklen_t namelen);
@@ -109,5 +110,6 @@ void sockpushdata(struct socket *sk, void *buf, size_t size);
 int sockpeeraddr(struct socket *sk, struct sockaddr **namebuf, socklen_t *lenbuf);
 int getucred(struct socket *sk, uid_t *uid, gid_t *gid);
 int sockfamily(struct socket *sk);
+void quitsock(struct socket *sk);
 
 #endif
diff --git a/daemon/transfer.c b/daemon/transfer.c
index 9c50ed1..f23a3ed 100644
--- a/daemon/transfer.c
+++ b/daemon/transfer.c
@@ -134,6 +134,10 @@ static void localread(struct socket *sk, struct transfer *transfer)
     if((transfer->datapipe != NULL) && (sockqueueleft(transfer->datapipe) > 0)) {
 	buf = sockgetinbuf(sk, &blen);
 	sockqueue(transfer->datapipe, buf, blen);
+	time(&transfer->activity);
+	transfer->curpos += blen;
+	bytesupload += blen;
+	CBCHAINDOCB(transfer, trans_p, transfer);
     }
 }
 
@@ -145,6 +149,9 @@ static void dataread(struct socket *sk, struct transfer *transfer)
     if((transfer->localend != NULL) && (sockqueueleft(transfer->localend) > 0)) {
 	buf = sockgetinbuf(sk, &blen);
 	sockqueue(transfer->localend, buf, blen);
+	transfer->curpos += blen;
+	bytesdownload += blen;
+	CBCHAINDOCB(transfer, trans_p, transfer);
     }
 }
 
@@ -168,8 +175,14 @@ static void localerr(struct socket *sk, int errno, struct transfer *transfer)
 
 static void dataerr(struct socket *sk, int errno, struct transfer *transfer)
 {
-    if(transfer->localend != NULL)
+    if(transfer->curpos >= transfer->size) {
+	transfersetstate(transfer, TRNS_DONE);
 	closesock(transfer->localend);
+	quitsock(transfer->localend);
+	transfer->localend = NULL;
+    } else {
+	resettransfer(transfer);
+    }
 }
 
 void transferattach(struct transfer *transfer, struct socket *dpipe)
@@ -185,11 +198,8 @@ void transferattach(struct transfer *transfer, struct socket *dpipe)
 void transferdetach(struct transfer *transfer)
 {
     if(transfer->datapipe != NULL) {
-	transfer->datapipe->readcb = NULL;
-	transfer->datapipe->writecb = NULL;
-	transfer->datapipe->errcb = NULL;
 	closesock(transfer->datapipe);
-	putsock(transfer->datapipe);
+	quitsock(transfer->datapipe);
     }
     transfer->datapipe = NULL;
 }
@@ -281,59 +291,6 @@ static void transexpire(int cancelled, struct transfer *transfer)
 	transfer->timeout = 0;
 }
 
-static void transferputdata(struct transfer *transfer, void *buf, size_t size)
-{
-    time(&transfer->activity);
-    sockqueue(transfer->localend, buf, size);
-    transfer->curpos += size;
-    bytesdownload += size;
-    CBCHAINDOCB(transfer, trans_p, transfer);
-}
-
-static void transferendofdata(struct transfer *transfer)
-{
-    if(transfer->curpos >= transfer->size)
-    {
-	transfersetstate(transfer, TRNS_DONE);
-	transfer->localend->readcb = NULL;
-	transfer->localend->writecb = NULL;
-	transfer->localend->errcb = NULL;
-	putsock(transfer->localend);
-	transfer->localend = NULL;
-    } else {
-	resettransfer(transfer);
-    }
-}
-
-static ssize_t transferdatasize(struct transfer *transfer)
-{
-    return(sockqueueleft(transfer->localend));
-}
-
-static void *transfergetdata(struct transfer *transfer, size_t *size)
-{
-    void *buf;
-    
-    if(transfer->localend == NULL)
-	return(NULL);
-    time(&transfer->activity);
-    if((buf = sockgetinbuf(transfer->localend, size)) == NULL)
-	return(NULL);
-    if((transfer->endpos >= 0) && (transfer->curpos + *size >= transfer->endpos))
-    {
-	if((*size = transfer->endpos - transfer->curpos) == 0) {
-	    free(buf);
-	    buf = NULL;
-	} else {
-	    buf = srealloc(buf, *size);
-	}
-    }
-    transfer->curpos += *size;
-    bytesupload += *size;
-    CBCHAINDOCB(transfer, trans_p, transfer);
-    return(buf);
-}
-
 void transferprepul(struct transfer *transfer, off_t size, off_t start, off_t end, struct socket *lesk)
 {
     transfersetsize(transfer, size);