x11vnc: improve ultravnc filexfer rate by calling rfbCheckFD more often

libvncserver/rfbserver.c

@@ -1292,8 +1292,9 @@ rfbBool rfbSendFileTransferChunk(rfbClientPtr cl)
 	tv.tv_usec = 0;
 	n = select(cl->sock + 1, NULL, &wfds, NULL, &tv);
 
-	if (n<1)
+	if (n<0) {
             rfbLog("rfbSendFileTransferChunk() select failed: %s\n", strerror(errno));
+	}
         /* We have space on the transmit queue */
 	if (n > 0)
 	{

x11vnc/README

 
-x11vnc README file                         Date: Sun Sep 17 13:31:31 EDT 2006
+x11vnc README file                         Date: Sun Sep 17 19:51:07 EDT 2006
 
 The following information is taken from these URLs:
 
@@ -44,11 +44,12 @@ x11vnc: a VNC server for real X displays
    or questions.
 
    An x11vnc side-project provides an [17]Enhanced TightVNC Viewer
-   package with automatic SSL and/or SSH tunnelling support, NewFBSize
-   support on Unix, and cursor alphablending. Please help test out some
-   recently added features: automatic service tunnelling via SSH for CUPS
-   and SMB Printing, ESD/ARTSD Audio, and SMB (Windows/Samba) filesystem
-   mounting; and Port Knocking.
+   package with automatic SSL and/or SSH tunnelling support, SSL
+   Certificate creation, NewFBSize support on Unix, and cursor
+   alphablending. Please help test out some recently added features:
+   automatic service tunnelling via SSH for CUPS and SMB Printing,
+   ESD/ARTSD Audio, and SMB (Windows/Samba) filesystem mounting; and Port
+   Knocking.
 
     Background:
 
@@ -7708,6 +7709,7 @@ Enhanced TightVNC Viewer
        only)
      * xgrabserver support for fullscreen mode, for old window managers
        (-grab option, Unix only).
+     * Create or Import SSL Certificates and Private Keys.
      * Automatic Service tunnelling via SSH for CUPS and SMB Printing,
        ESD/ARTSD Audio, and SMB (Windows/Samba) filesystem mounting.
      * Port Knocking for "closed port" SSH/SSL connections. In addition

x11vnc/x11vnc.c

@@ -394,6 +394,47 @@ if (0 && dt > 0.0) fprintf(stderr, "dt: %.5f %.4f\n", dt, dnow() - x11vnc_start)
 	return msec;
 }
 
+void check_filexfer(void) {
+	static time_t last_check = 0;
+	rfbClientIteratorPtr iter;
+	rfbClientPtr cl;
+	int transferring = 0; 
+	
+	if (time(NULL) <= last_check) {
+		return;
+	}
+
+#if 0
+	if (getenv("NOFT")) {
+		return;
+	}
+#endif
+
+	iter = rfbGetClientIterator(screen);
+	while( (cl = rfbClientIteratorNext(iter)) ) {
+		if (cl->fileTransfer.receiving) {
+			transferring = 1;
+			break;
+		}
+		if (cl->fileTransfer.sending) {
+			transferring = 1;
+			break;
+		}
+	}
+	rfbReleaseClientIterator(iter);
+
+	if (transferring) {
+		double start = dnow();
+		while (dnow() < start + 0.5) {
+			rfbCFD(5000);
+			rfbCFD(1000);
+			rfbCFD(0);
+		}
+	} else {
+		last_check = time(NULL);
+	}
+}
+
 /*
  * main x11vnc loop: polls, checks for events, iterate libvncserver, etc.
  */
@@ -515,6 +556,7 @@ static void watch_loop(void) {
 			check_xevents(0);
 			check_autorepeat();
 			check_pm();
+			check_filexfer();
 			check_keycode_state();
 			check_connect_inputs();		
 			check_gui_inputs();