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<title>[12005] CalendarServer/trunk/twext/application/masterchild.py</title>
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<dt>Revision</dt> <dd><a href="http://trac.calendarserver.org//changeset/12005">12005</a></dd>
<dt>Author</dt> <dd>wsanchez@apple.com</dd>
<dt>Date</dt> <dd>2013-11-22 21:18:48 -0800 (Fri, 22 Nov 2013)</dd>
</dl>
<h3>Log Message</h3>
<pre>Wire up enough that child gets spawned.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#CalendarServertrunktwextapplicationmasterchildpy">CalendarServer/trunk/twext/application/masterchild.py</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<a id="CalendarServertrunktwextapplicationmasterchildpy"></a>
<div class="modfile"><h4>Modified: CalendarServer/trunk/twext/application/masterchild.py (12004 => 12005)</h4>
<pre class="diff"><span>
<span class="info">--- CalendarServer/trunk/twext/application/masterchild.py        2013-11-23 05:18:12 UTC (rev 12004)
+++ CalendarServer/trunk/twext/application/masterchild.py        2013-11-23 05:18:48 UTC (rev 12005)
</span><span class="lines">@@ -57,7 +57,7 @@
</span><span class="cx">
</span><span class="cx">
</span><span class="cx"> def sendSocket(self, socketObject):
</span><del>- self.spawningService.socketWillArrive()
</del><ins>+ self.spawningService.socketWillArriveForProtocol(self.description)
</ins><span class="cx"> super(SpawningInheritingProtocolFactory, self).sendSocket(socketObject)
</span><span class="cx">
</span><span class="cx">
</span><span class="lines">@@ -79,9 +79,8 @@
</span><span class="cx"> spawningService.setServiceParent(service)
</span><span class="cx">
</span><span class="cx"> # TCP Service
</span><del>- description = bytes(childProtocol) # UserInfo sent to the dispatcher
</del><span class="cx"> tcpFactory = SpawningInheritingProtocolFactory(
</span><del>- dispatcher, spawningService, description
</del><ins>+ dispatcher, spawningService, childProtocol
</ins><span class="cx"> )
</span><span class="cx"> tcpService = TCPServer(port, tcpFactory)
</span><span class="cx">
</span><span class="lines">@@ -98,14 +97,16 @@
</span><span class="cx"> class ChildSpawningService(Service, object):
</span><span class="cx"> log = Logger()
</span><span class="cx">
</span><del>- def __init__(self, dispatcher, protocolName, maxProcessCount=8):
</del><ins>+ pluginName = b"child"
+
+
+ def __init__(self, dispatcher, maxProcessCount=8):
</ins><span class="cx"> """
</span><span class="cx"> @param protocol: The name of the protocol for the child to use
</span><span class="cx"> to handle connections.
</span><span class="cx"> @type protocol: L{str} naming an L{IProtocol} implementer.
</span><span class="cx"> """
</span><span class="cx"> self.dispatcher = dispatcher
</span><del>- self.protocolName = protocolName
</del><span class="cx"> self.maxProcessCount = maxProcessCount
</span><span class="cx">
</span><span class="cx">
</span><span class="lines">@@ -119,17 +120,17 @@
</span><span class="cx"> del(self.children)
</span><span class="cx">
</span><span class="cx">
</span><del>- def socketWillArrive(self):
</del><ins>+ def socketWillArriveForProtocol(self, protocolName):
</ins><span class="cx"> """
</span><span class="cx"> This method is where this service makes sure that there are
</span><span class="cx"> sufficient child processes available to handle additional
</span><span class="cx"> connections.
</span><span class="cx"> """
</span><span class="cx"> if len(self.children) == 0:
</span><del>- self.spawnChild()
</del><ins>+ self.spawnChild(protocolName)
</ins><span class="cx">
</span><span class="cx">
</span><del>- def spawnChild(self):
</del><ins>+ def spawnChild(self, protocolName):
</ins><span class="cx"> """
</span><span class="cx"> Spawn a child process to handle connections.
</span><span class="cx"> """
</span><span class="lines">@@ -143,13 +144,18 @@
</span><span class="cx"> arguments = (
</span><span class="cx"> sys.executable, b"-c",
</span><span class="cx"> b"from twisted.scripts.twistd import run; run()",
</span><del>- b"--inherited-fd", b"3",
- b"--protocol", self.protocolName,
</del><ins>+ b"--pidfile", b"/dev/null",
+ b"--logfile", b"-",
+ self.pluginName,
+ b"--inherited-fd=3",
+ b"--protocol", protocolName,
</ins><span class="cx"> )
</span><span class="cx">
</span><span class="cx"> transport = reactor.spawnProcess(
</span><span class="cx"> processProtocol,
</span><del>- sys.executable, arguments, env={},
</del><ins>+ sys.executable, arguments, env={
+ b"PYTHONPATH": b":".join(sys.path),
+ },
</ins><span class="cx"> childFDs={0: b"w", 1: b"r", 2: b"r", 3: inheritedFD}
</span><span class="cx"> )
</span><span class="cx">
</span><span class="lines">@@ -158,7 +164,7 @@
</span><span class="cx"> self.log.info(
</span><span class="cx"> u"Spawned child process ({child.transport.pid}) "
</span><span class="cx"> u"for protocol {protocol!r}: {arguments}",
</span><del>- child=child, protocol=self.protocolName, arguments=arguments,
</del><ins>+ child=child, protocol=protocolName, arguments=arguments,
</ins><span class="cx"> )
</span><span class="cx">
</span><span class="cx"> self.children.add(child)
</span><span class="lines">@@ -223,7 +229,11 @@
</span><span class="cx">
</span><span class="cx">
</span><span class="cx">
</span><del>-class ChildOptions (Options):
</del><ins>+class ChildOptions(Options):
+ """
+ Options for a child process.
+ """
+
</ins><span class="cx"> def opt_inherited_fd(self, value):
</span><span class="cx"> """
</span><span class="cx"> Inherited file descriptor
</span><span class="lines">@@ -367,5 +377,12 @@
</span><span class="cx"> )
</span><span class="cx">
</span><span class="cx">
</span><ins>+ @staticmethod
+ def statusesChanged(statuses):
+ # FIXME: THis isn't in IStatusWatcher, but is called by
+ # InheritedSocketDispatcher.
+ pass
</ins><span class="cx">
</span><ins>+
+
</ins><span class="cx"> Status = namedtuple("Status", ("sentCount", "ackedCount"))
</span></span></pre>
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