Add pymin.item module.

[software/pymin.git] / pymin / pymindaemon.py

diff --git a/pymin/pymindaemon.py b/pymin/pymindaemon.py
index ccb943dd48d4ebcd030c5a12aa94b9f3ebb853a1..067a727e265b42cd629f53deaa71fad585bb1020 100644 (file)
--- a/pymin/pymindaemon.py
+++ b/pymin/pymindaemon.py
@@ -10,11 +10,13 @@ command-line.
 
 import signal
 import socket
+import logging ; log = logging.getLogger('pymin.pymindaemon')
 
 from pymin.dispatcher import handler
 from pymin import dispatcher
 from pymin import eventloop
 from pymin import serializer
+from pymin import procman
 
 class PyminDaemon(eventloop.EventLoop):
     r"""PyminDaemon(root, bind_addr) -> PyminDaemon instance
@@ -42,6 +44,7 @@ class PyminDaemon(eventloop.EventLoop):
 
         See PyminDaemon class documentation for more info.
         """
+        log.debug(u'PyminDaemon(%r, %r, %r)', root, bind_addr, timer)
         # Timer timeout time
         self.timer = timer
         # Create and bind socket
@@ -50,20 +53,25 @@ class PyminDaemon(eventloop.EventLoop):
         sock.bind(bind_addr)
         # Signal handling
         def quit(loop, signum):
-            print "Shuting down ..."
+            log.debug(u'PyminDaemon quit() handler: signal %r', signum)
+            log.info(u'Shutting down...')
             loop.stop() # tell main event loop to stop
         def reload_config(loop, signum):
-            print "Reloading configuration..."
+            log.debug(u'PyminDaemon reload_config() handler: signal %r', signum)
+            log.info(u'Reloading configuration...')
             # TODO iterate handlers list propagating reload action
         def timer(loop, signum):
             loop.handle_timer()
             signal.alarm(loop.timer)
+        def child(loop, signum):
+            procman.sigchild_handler(signum)
         # Create EventLoop
         eventloop.EventLoop.__init__(self, sock, signals={
                 signal.SIGINT: quit,
                 signal.SIGTERM: quit,
                 signal.SIGUSR1: reload_config,
                 signal.SIGALRM: timer,
+                signal.SIGCHLD: child,
             })
         # Create Dispatcher
         #TODO root.pymin = PyminHandler()
@@ -72,6 +80,7 @@ class PyminDaemon(eventloop.EventLoop):
     def handle(self):
         r"handle() -> None :: Handle incoming events using the dispatcher."
         (msg, addr) = self.file.recvfrom(65535)
+        log.debug(u'PyminDaemon.handle: message %r from %r', msg, addr)
         try:
             result = self.dispatcher.dispatch(unicode(msg, 'utf-8'))
             if result is not None:
@@ -83,12 +92,13 @@ class PyminDaemon(eventloop.EventLoop):
         except Exception, e:
             import traceback
             result = u'Internal server error\n'
-            traceback.print_exc() # TODO logging!
             response = u'ERROR '
+            log.exception(u'PyminDaemon.handle: unhandled exception')
         if result is None:
             response += u'0\n'
         else:
             response += u'%d\n%s' % (len(result), result)
+        log.debug(u'PyminDaemon.handle: response %r to %r', response, addr)
         self.file.sendto(response.encode('utf-8'), addr)
 
     def handle_timer(self):
@@ -97,6 +107,7 @@ class PyminDaemon(eventloop.EventLoop):
 
     def run(self):
         r"run() -> None :: Run the event loop (shortcut to loop())"
+        log.debug(u'PyminDaemon.loop()')
         # Start the timer
         self.handle_timer()
         signal.alarm(self.timer)
@@ -104,10 +115,17 @@ class PyminDaemon(eventloop.EventLoop):
         try:
             return self.loop()
         except eventloop.LoopInterruptedError, e:
+            log.debug(u'PyminDaemon.loop: interrupted')
             pass
 
 if __name__ == '__main__':
 
+    logging.basicConfig(
+        level   = logging.DEBUG,
+        format  = '%(asctime)s %(levelname)-8s %(message)s',
+        datefmt = '%H:%M:%S',
+    )
+
     class Root(dispatcher.Handler):
         @handler(u"Print all the arguments, return nothing.")
         def test(self, *args):