cache: sync the cache file to disk in the background

This version uses a thread rather than a process, to avoid problems with
waitpid handling.  This gives slightly less overall build time reduction than
the separate process for it did (this reduces a -c compile coreutils-native by
about 3 seconds, while the process reduced it by 7 seconds), however this time
is quite insignificant relative to a typical build.

The biggest issue with non-backgrounded syncing is the perceived delay before
work begins, and this resolves that without breaking anything, or so it seems.

(Bitbake rev: 5ab6c5c7b007b8c77c751582141afc07c183d672)

Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

1 files changed, 9 insertions, 9 deletions

diff --git a/bitbake/lib/bb/ui/uievent.py b/bitbake/lib/bb/ui/uievent.py
index f1e4d791e..b404805d8 100644
--- a/bitbake/lib/bb/ui/uievent.py
+++ b/bitbake/lib/bb/ui/uievent.py
@@ -37,8 +37,8 @@ class BBUIEventQueue:
         self.BBServer = BBServer
 
         self.t = threading.Thread()
-        self.t.setDaemon(True)

-        self.t.run = self.startCallbackHandler

+        self.t.setDaemon(True)
+        self.t.run = self.startCallbackHandler
         self.t.start()
 
     def getEvent(self):
@@ -70,7 +70,7 @@ class BBUIEventQueue:
     def startCallbackHandler(self):
 
         server = UIXMLRPCServer()
-        self.host, self.port = server.socket.getsockname()

+        self.host, self.port = server.socket.getsockname()
 
         server.register_function( self.system_quit, "event.quit" )
         server.register_function( self.queue_event, "event.send" )
@@ -83,7 +83,7 @@ class BBUIEventQueue:
             server.handle_request()
         server.server_close()
 
-    def system_quit( self ):

+    def system_quit( self ):
         """
         Shut down the callback thread
         """
@@ -95,11 +95,11 @@ class BBUIEventQueue:
 
 class UIXMLRPCServer (SimpleXMLRPCServer):
 
-    def __init__( self, interface = ("localhost", 0) ):

+    def __init__( self, interface = ("localhost", 0) ):
         self.quit = False
-        SimpleXMLRPCServer.__init__( self,

-                                    interface,

-                                    requestHandler=SimpleXMLRPCRequestHandler,

+        SimpleXMLRPCServer.__init__( self,
+                                    interface,
+                                    requestHandler=SimpleXMLRPCRequestHandler,
                                     logRequests=False, allow_none=True)
 
     def get_request(self):
@@ -121,4 +121,4 @@ class UIXMLRPCServer (SimpleXMLRPCServer):
         if request is None:
             return
         SimpleXMLRPCServer.process_request(self, request, client_address)
-

+