Sam's latest versions

Lib/asyncore.py

@@ -37,38 +37,33 @@ if os.name == 'nt':
 	EALREADY	= 10037
 	ECONNRESET  = 10054
 	ENOTCONN	= 10057
+	ESHUTDOWN	= 10058
 else:
-	from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, ENOTCONN
+	from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, ENOTCONN, ESHUTDOWN
 
 socket_map = {}
 
-def poll (timeout=0.0, ignore_expt=1):
+def poll (timeout=0.0):
 	if socket_map:
-		sockets = socket_map.keys()
-		r = filter (lambda x: x.readable(), sockets)
-		w = filter (lambda x: x.writable(), sockets)
-		if ignore_expt:
-			e = []
-		else:
-			e = sockets[:]
+		r = []; w = []; e = []
+		for s in socket_map.keys():
+			if s.readable():
+				r.append (s)
+			if s.writable():
+				w.append (s)
 
 		(r,w,e) = select.select (r,w,e, timeout)
 
-		for x in e:
-			try:
-				x.handle_expt_event()
-			except:
-				x.handle_error (sys.exc_type, sys.exc_value, sys.exc_traceback)
 		for x in r:
 			try:
 				x.handle_read_event()
 			except:
-				x.handle_error (sys.exc_type, sys.exc_value, sys.exc_traceback)
+				x.handle_error()
 		for x in w:
 			try:
 				x.handle_write_event()
 			except:
-				x.handle_error (sys.exc_type, sys.exc_value, sys.exc_traceback)
+				x.handle_error()
 
 def poll2 (timeout=0.0):
 	import poll
@@ -88,18 +83,17 @@ def poll2 (timeout=0.0):
 			if flags:
 				l.append (fd, flags)
 		r = poll.poll (l, timeout)
-		print r
 		for fd, flags in r:
 			s = fd_map[fd]
 			try:
 				if (flags & poll.POLLIN):
-						s.handle_read_event()
+					s.handle_read_event()
 				if (flags & poll.POLLOUT):
-						s.handle_write_event()
+					s.handle_write_event()
 				if (flags & poll.POLLERR):
-						s.handle_expt_event()
+					s.handle_expt_event()
 			except:
-				apply (s.handle_error, sys.exc_info())
+				s.handle_error()
 
 
 def loop (timeout=30.0, use_poll=0):
@@ -149,12 +143,14 @@ class dispatcher:
 			return '<__repr__ (self) failed for object at %x (addr=%s)>' % (id(self),ar)
 
 	def add_channel (self):
-		self.log ('adding channel %s' % self)
+		if __debug__:
+			self.log ('adding channel %s' % self)
 		socket_map [self] = 1
 
 	def del_channel (self):
 		if socket_map.has_key (self):
-			self.log ('closing channel %d:%s' % (self.fileno(), self))
+			if __debug__:
+				self.log ('closing channel %d:%s' % (self.fileno(), self))
 			del socket_map [self]
 
 	def create_socket (self, family, type):
@@ -164,7 +160,8 @@ class dispatcher:
 		self.add_channel()
 
 	def set_socket (self, socket):
-		self.socket = socket
+		# This is done so we can be called safely from __init__
+		self.__dict__['socket'] = socket
 		self.add_channel()
 
 	def set_reuse_addr (self):
@@ -210,6 +207,7 @@ class dispatcher:
 		return self.socket.bind (addr)
 
 	def connect (self, address):
+		self.connected = 0
 		try:
 			self.socket.connect (address)
 		except socket.error, why:
@@ -253,7 +251,7 @@ class dispatcher:
 				return data
 		except socket.error, why:
 			# winsock sometimes throws ENOTCONN
-			if why[0] in [ECONNRESET, ENOTCONN]:
+			if why[0] in [ECONNRESET, ENOTCONN, ESHUTDOWN]:
 				self.handle_close()
 				return ''
 			else:
@@ -262,15 +260,12 @@ class dispatcher:
 	def close (self):
 		self.del_channel()
 		self.socket.close()
-		self.connected = 0
 
 	# cheap inheritance, used to pass all other attribute
 	# references to the underlying socket object.
+	# NOTE: this may be removed soon for performance reasons.
 	def __getattr__ (self, attr):
-		if attr != 'socket':
-			return getattr (self.socket, attr)
-		else:
-			raise AttributeError, attr
+		return getattr (self.socket, attr)
 
 	def log (self, message):
 		print 'log:', message
@@ -299,9 +294,8 @@ class dispatcher:
 	def handle_expt_event (self):
 		self.handle_expt()
 
-	def handle_error (self, *info):
-		(t,v,tb) = info
-		(file,fun,line), tbinfo = compact_traceback (t,v,tb)
+	def handle_error (self):
+		(file,fun,line), t, v, tbinfo = compact_traceback()
 
 		# sometimes a user repr method will crash.
 		try:
@@ -312,34 +306,36 @@ class dispatcher:
 		print (
 			'uncaptured python exception, closing channel %s (%s:%s %s)' % (
 				self_repr,
-				str(t),
-				str(v),
+				t,
+				v,
 				tbinfo
 				)
 			)
-		del t,v,tb
 		self.close()
 
 	def handle_expt (self):
-		self.log ('unhandled exception')
+		if __debug__:
+			self.log ('unhandled exception')
 
 	def handle_read (self):
-		self.log ('unhandled read event')
+		if __debug__:
+			self.log ('unhandled read event')
 
 	def handle_write (self):
-		self.log ('unhandled write event')
+		if __debug__:
+			self.log ('unhandled write event')
 
 	def handle_connect (self):
-		self.log ('unhandled connect event')
-
-	def handle_oob (self):
-		self.log ('unhandled out-of-band event')
+		if __debug__:
+			self.log ('unhandled connect event')
 
 	def handle_accept (self):
-		self.log ('unhandled accept event')
+		if __debug__:
+			self.log ('unhandled accept event')
 
 	def handle_close (self):
-		self.log ('unhandled close event')
+		if __debug__:
+			self.log ('unhandled close event')
 		self.close()
 
 # ---------------------------------------------------------------------------
@@ -373,7 +369,8 @@ class dispatcher_with_send (dispatcher):
 # used for debugging.
 # ---------------------------------------------------------------------------
 
-def compact_traceback (t,v,tb):
+def compact_traceback ():
+	t,v,tb = sys.exc_info()
 	tbinfo = []
 	while 1:
 		tbinfo.append (
@@ -385,6 +382,9 @@ def compact_traceback (t,v,tb):
 		if not tb:
 			break
 
+	# just to be safe
+	del tb
+
 	file, function, line = tbinfo[-1]
 	info = '[' + string.join (
 		map (
@@ -393,7 +393,7 @@ def compact_traceback (t,v,tb):
 			),
 		'] ['
 		) + ']'
-	return (file, function, line), info
+	return (file, function, line), t, v, info
 
 def close_all ():
 	global socket_map
@@ -450,4 +450,4 @@ if os.name == 'posix':
 		def set_file (self, fd):
 			self.socket = file_wrapper (fd)
 			self.add_channel()
-#not really
+