code: 9ferno

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add infrastructure to make collab run ;; collab does not run yet

--- a/appl/collab/clients/whiteboard.b

+++ b/appl/collab/clients/whiteboard.b

@@ -108,8 +108,10 @@

 	(err, strokeimg, sfd, ctlfd) = <-cc =>

 		if (err == nil)

 			break Connect;

-		else

+		else {

 			showtext(cimage, "Error: " + err);

+			sys->fprint(sys->fildes(2), "Error: %s\n", err);

+		}

 	s := <-winctl or

 	s = <-win.wreq or

--- a/appl/collab/connect.b

+++ b/appl/collab/connect.b

@@ -14,7 +14,8 @@

 };

 remotedir := "/n/remote";

-localdir := "/n/ftree/collab";

+# localdir := "/n/ftree/collab";	# deprecated?

+localdir := "/n/remote/collab";

 COLLABPORT: con "9999";	# TO DO: needs symbolic name in services

 usage()

--- a/appl/collab/proxy.b

+++ b/appl/collab/proxy.b

@@ -12,11 +12,16 @@

 {

 	sys = load Sys Sys->PATH;

+	if(fd == nil)

+		raise "err: fd for export was nil";

+

 	sys->chdir(root);

 	sys->bind("export/services", "export/services", Sys->MCREATE);

 	sys->bind("#s", "export/services", Sys->MBEFORE);

 	ctlio := sys->file2chan("export/services", "ctl");

+	if(ctlio == nil)

+		raise "err: export/services file2chan failed -- " + root + "/export/services directory does not exist" ;

 	hangup := chan of int;

 	spawn export(fd, "export", hangup);

--- a/appl/collab/srvmgr.b

+++ b/appl/collab/srvmgr.b

@@ -107,7 +107,7 @@

 #

 startservice(name: string): (string, string, ref Sys->FD)

 {

-sys->print("startservice [%s]\n", name);

+	sys->print("startservice [%s]\n", name);

 	srv: ref Srvinfo;

 	for (sl := services; sl != nil; sl = tl sl) {

 		s := hd sl;

--- a/lib/emptydirs

+++ b/lib/emptydirs

@@ -86,3 +86,6 @@

 usr/inferno/charon

 usr/inferno/keyring

 usr/inferno/tmp

+services/collab/export/services

+services/collab/export/collab

+