[svn r63089] factor out MultiChannel and MultiGateway helpers

--HG--
branch : trunk

py/__init__.py

@@ -27,8 +27,8 @@ version = "1.0.0a1"
 
 initpkg(__name__,
     description = "pylib and py.test: agile development and test support library",
-    revision = int('$LastChangedRevision: 63027 $'.split(':')[1][:-1]),
-    lastchangedate = '$LastChangedDate: 2009-03-18 12:18:39 +0100 (Wed, 18 Mar 2009) $',
+    revision = int('$LastChangedRevision: 63089 $'.split(':')[1][:-1]),
+    lastchangedate = '$LastChangedDate: 2009-03-19 18:05:41 +0100 (Thu, 19 Mar 2009) $',
     version = version, 
     url = "http://pylib.org", 
     download_url = "http://codespeak.net/py/0.9.2/download.html",
@@ -152,8 +152,8 @@ initpkg(__name__,
     'execnet.PopenGateway'   : ('./execnet/register.py', 'PopenGateway'),
     'execnet.SshGateway'     : ('./execnet/register.py', 'SshGateway'),
     'execnet.GatewaySpec'    : ('./execnet/gwmanage.py', 'GatewaySpec'),
-    'execnet.MultiGateway'   : ('./execnet/gwmanage.py', 'MultiGateway'),
-    'execnet.MultiChannel'   : ('./execnet/gwmanage.py', 'MultiChannel'),
+    'execnet.MultiGateway'   : ('./execnet/multi.py', 'MultiGateway'),
+    'execnet.MultiChannel'   : ('./execnet/multi.py', 'MultiChannel'),
 
     # execnet scripts
     'execnet.RSync'          : ('./execnet/rsync.py', 'RSync'),

py/execnet/gwmanage.py

@@ -94,64 +94,6 @@ class GatewaySpec(object):
         gw.spec = self
         return gw 
 
-class MultiChannel:
-    def __init__(self, channels):
-        self._channels = channels
-
-    def send_each(self, item):
-        for ch in self._channels:
-            ch.send(item)
-
-    def receive_each(self, withchannel=False):
-        assert not hasattr(self, '_queue')
-        l = []
-        for ch in self._channels:
-            obj = ch.receive()
-            if withchannel:
-                l.append((ch, obj))
-            else:
-                l.append(obj)
-        return l 
-
-    def make_receive_queue(self, endmarker=NO_ENDMARKER_WANTED):
-        try:
-            return self._queue
-        except AttributeError:
-            self._queue = py.std.Queue.Queue()
-            for ch in self._channels:
-                def putreceived(obj, channel=ch):
-                    self._queue.put((channel, obj))
-                if endmarker is NO_ENDMARKER_WANTED:
-                    ch.setcallback(putreceived)
-                else:
-                    ch.setcallback(putreceived, endmarker=endmarker)
-            return self._queue
-
-
-    def waitclose(self):
-        first = None
-        for ch in self._channels:
-            try:
-                ch.waitclose()
-            except ch.RemoteError:
-                if first is None:
-                    first = py.std.sys.exc_info()
-        if first:
-            raise first[0], first[1], first[2]
-
-class MultiGateway:
-    RemoteError = RemoteError
-    def __init__(self, gateways):
-        self.gateways = gateways
-    def remote_exec(self, source):
-        channels = []
-        for gw in self.gateways:
-            channels.append(gw.remote_exec(source))
-        return MultiChannel(channels)
-    def exit(self):
-        for gw in self.gateways:
-            gw.exit()
-
 class GatewayManager:
     RemoteError = RemoteError
 
@@ -179,7 +121,7 @@ class GatewayManager:
             else:
                 if remote:
                     l.append(gw)
-        return MultiGateway(gateways=l)
+        return py.execnet.MultiGateway(gateways=l)
 
     def multi_exec(self, source, inplacelocal=True):
         """ remote execute code on all gateways. 

py/execnet/multi.py

@@ -0,0 +1,68 @@
+"""
+    Working with multiple channels and gateways
+
+"""
+import py
+from py.__.execnet.channel import RemoteError
+
+NO_ENDMARKER_WANTED = object()
+
+class MultiGateway:
+    RemoteError = RemoteError
+    def __init__(self, gateways):
+        self.gateways = gateways
+    def remote_exec(self, source):
+        channels = []
+        for gw in self.gateways:
+            channels.append(gw.remote_exec(source))
+        return MultiChannel(channels)
+    def exit(self):
+        for gw in self.gateways:
+            gw.exit()
+
+class MultiChannel:
+    def __init__(self, channels):
+        self._channels = channels
+
+    def send_each(self, item):
+        for ch in self._channels:
+            ch.send(item)
+
+    def receive_each(self, withchannel=False):
+        assert not hasattr(self, '_queue')
+        l = []
+        for ch in self._channels:
+            obj = ch.receive()
+            if withchannel:
+                l.append((ch, obj))
+            else:
+                l.append(obj)
+        return l 
+
+    def make_receive_queue(self, endmarker=NO_ENDMARKER_WANTED):
+        try:
+            return self._queue
+        except AttributeError:
+            self._queue = py.std.Queue.Queue()
+            for ch in self._channels:
+                def putreceived(obj, channel=ch):
+                    self._queue.put((channel, obj))
+                if endmarker is NO_ENDMARKER_WANTED:
+                    ch.setcallback(putreceived)
+                else:
+                    ch.setcallback(putreceived, endmarker=endmarker)
+            return self._queue
+
+
+    def waitclose(self):
+        first = None
+        for ch in self._channels:
+            try:
+                ch.waitclose()
+            except ch.RemoteError:
+                if first is None:
+                    first = py.std.sys.exc_info()
+        if first:
+            raise first[0], first[1], first[2]
+
+