From 1ad178fd00b675d686c2560829e9a10c5cb44f6f Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Wed, 7 Jan 2015 16:05:48 +0100
Subject: proc: call `startup_essential_task' earlier

Previously, the proc server did not call `startup_essential_task'
until it got the message port of the startup server using
`proc_setmsgport'.

Now that we have `/servers/startup', we can do this in main, before we
start our message service loop.

A complication arises because the traditional startup server is
single-threaded.  Handle this by tweaking startup not to bind itself
to `/servers/startup' before it is ready.

* proc/main.c (main): Try to lookup `/servers/startup' and send the
message here, or...
* proc/msg.c (S_proc_setmsgport): ... fall back to the old way here.
* proc/proc.h (startup_fallback): New variable.
* startup/startup.c (main): Move code installing ourself on `/servers/startup'
(install_as_translator): ... here.
(launch_core_servers): And use it here, just before we reply to `/hurd/auth'.
---
 proc/proc.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'proc/proc.h')

diff --git a/proc/proc.h b/proc/proc.h
index a056d18c..4be1de4e 100644
--- a/proc/proc.h
+++ b/proc/proc.h
@@ -151,6 +151,8 @@ mach_port_t generic_port;	/* messages not related to a specific proc */
 
 pthread_mutex_t global_lock;
 
+extern int startup_fallback;	/* (ab)use /hurd/startup's message port */
+
 /* Forward declarations */
 void complete_wait (struct proc *, int);
 int check_uid (struct proc *, uid_t);
-- 
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