X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/7bfa1e069777af48312d509a88e5faff02f930ff..1171524232347e4c8fbd47409577c5e988ebc6d6:/svc/conntrack.in

diff --git a/svc/conntrack.in b/svc/conntrack.in
index 367d26d4..a7431321 100644
--- a/svc/conntrack.in
+++ b/svc/conntrack.in
@@ -214,6 +214,7 @@ def localaddr(peer):
 
 _kick = T.Queue()
 def kickpeers():
+  lastip = {}
   while True:
     upness, reason = _kick.get()
 
@@ -233,35 +234,60 @@ def kickpeers():
       addr = localaddr(CF.testaddr)
       if addr is None:
         upness = False
+    else:
+      addr = None
 
     ## Now decide what to do.
     changes = []
     for g, pp in CF.groups:
 
       ## Find out which peer in the group ought to be active.
-      want = None                       # unequal to any string
-      if upness:
-        for t, p, a, m in pp:
-          if p is None:
-            aq = addr
+      ip = None
+      map = {}
+      want = None
+      for t, p, a, m in pp:
+        if p is None or not upness:
+          ipq = addr
+        else:
+          ipq = localaddr(p)
+        if upness and ip is None and \
+              ipq is not None and (ipq & m) == a:
+          map[t] = 'up'
+          if t == 'down' or t.startswith('down/'):
+            want = None
           else:
-            aq = localaddr(p)
-          if aq is not None and (aq & m) == a:
             want = t
-            break
+          ip = ipq
+        else:
+          map[t] = 'down'
 
       ## Shut down the wrong ones.
       found = False
       for p in peers:
-        if p == want:
+        what = map.get(p, 'leave')
+        if what == 'up':
           found = True
-        elif p.startswith(g) and p != want:
-          changes.append(lambda p=p: SM.kill(p))
+        elif what == 'down':
+          def _(p = p):
+            try:
+              SM.kill(p)
+            except T.TripeError, exc:
+              if exc.args[0] == 'unknown-peer':
+                ## Inherently racy; don't worry about this.
+                pass
+              else:
+                raise
+          changes.append(_)
 
       ## Start the right one if necessary.
-      if want is not None and not found:
-        changes.append(lambda: T._simple(SM.svcsubmit('connect', 'active',
-                                                      want)))
+      if want is not None and (not found or ip != lastip.get(g, None)):
+        def _(want = want):
+          try:
+            SM.svcsubmit('connect', 'active', want)
+          except T.TripeError, exc:
+            SM.warn('conntrack', 'connect-failed', want, *exc.args)
+        changes.append(_)
+      lastip[g] = ip
 
     ## Commit the changes.
     if changes:
@@ -403,7 +429,7 @@ class DBusMonitor (object):
     if me._bus is not None:
       mon.attach(me._bus)
 
-  def _reconnect(me):
+  def _reconnect(me, hunoz = None):
     """
     Start connecting to the bus.