bitbake: server/xmlrpc/prserv: Add sane timeout to default xmlrpc server

The standard python socket connect has long timouts which make sense for remote
connections but not local things like the PR Service. This adds a timeout
parameter to the common xmlrpc server creation function and sets it to a more
reasonable 5 seconds.

Making the PR server instantly exit is a good way to test the effect of this
on bitbake.

We can remove the bodged timeout in the PRServer terminate function which
has the side effect of affecting global scope.

(Bitbake rev: 8c01cff94787abbb64fbdf0c16cd63f8f97a7e03)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/server/xmlrpc.py

@@ -47,15 +47,29 @@ except ImportError:
 DEBUG = False
 
 from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler
-import inspect, select
+import inspect, select, httplib
 
 from . import BitBakeBaseServer, BitBakeBaseServerConnection, BaseImplServer
 
 class BBTransport(xmlrpclib.Transport):
-    def __init__(self):
+    def __init__(self, timeout):
+        self.timeout = timeout
         self.connection_token = None
         xmlrpclib.Transport.__init__(self)
 
+    # Modified from default to pass timeout to HTTPConnection
+    def make_connection(self, host):
+        #return an existing connection if possible.  This allows
+        #HTTP/1.1 keep-alive.
+        if self._connection and host == self._connection[0]:
+            return self._connection[1]
+
+        # create a HTTP connection object from a host descriptor
+        chost, self._extra_headers, x509 = self.get_host_info(host)
+        #store the host argument along with the connection object
+        self._connection = host, httplib.HTTPConnection(chost, timeout=self.timeout)
+        return self._connection[1]
+
     def set_connection_token(self, token):
         self.connection_token = token
 
@@ -64,8 +78,8 @@ class BBTransport(xmlrpclib.Transport):
             h.putheader("Bitbake-token", self.connection_token)
         xmlrpclib.Transport.send_content(self, h, body)
 
-def _create_server(host, port):
-    t = BBTransport()
+def _create_server(host, port, timeout = 5):
+    t = BBTransport(timeout)
     s = xmlrpclib.Server("http://%s:%d/" % (host, port), transport=t, allow_none=True)
     return s, t
 

bitbake/lib/prserv/serv.py

@@ -186,9 +186,6 @@ class PRServerConnection():
         self.connection, self.transport = bb.server.xmlrpc._create_server(self.host, self.port)
 
     def terminate(self):
-        # Don't wait for server indefinitely
-        import socket
-        socket.setdefaulttimeout(2)
         try:
             logger.info("Terminating PRServer...")
             self.connection.quit()