def createInternetSocket(self): """(internal) Create a non-blocking socket using self.addressFamily, self.socketType. """ s = socket.socket(self.addressFamily, self.socketType) s.setblocking(0) fdesc._setCloseOnExec(s.fileno()) return s
def __init__(self, reactor): """Initialize. """ self.reactor = reactor self.i, self.o = os.pipe() fdesc.setNonBlocking(self.i) fdesc._setCloseOnExec(self.i) fdesc.setNonBlocking(self.o) fdesc._setCloseOnExec(self.o) self.fileno = lambda: self.i
def __init__(self, reactor=None): FileDescriptor.__init__(self, reactor=reactor) # Smart way to allow parametrization of libc so I can override # it and test for the system errors. self._fd = self._inotify.init() fdesc.setNonBlocking(self._fd) fdesc._setCloseOnExec(self._fd) # The next 2 lines are needed to have self.loseConnection() # to call connectionLost() on us. Since we already created the # fd that talks to inotify we want to be notified even if we # haven't yet started reading. self.connected = 1 self._writeDisconnected = True self._buffer = '' self._watchpoints = {} self._watchpaths = {}
def doRead(self): """Called when my socket is ready for reading. This accepts a connection and calls self.protocol() to handle the wire-level protocol. """ try: if platformType == "posix": numAccepts = self.numberAccepts else: # win32 event loop breaks if we do more than one accept() # in an iteration of the event loop. numAccepts = 1 for i in range(numAccepts): # we need this so we can deal with a factory's buildProtocol # calling our loseConnection if self.disconnecting: return try: skt, addr = self.socket.accept() except socket.error, e: if e.args[0] in (EWOULDBLOCK, EAGAIN): self.numberAccepts = i break elif e.args[0] == EPERM: # Netfilter on Linux may have rejected the # connection, but we get told to try to accept() # anyway. continue elif e.args[0] in (EMFILE, ENOBUFS, ENFILE, ENOMEM, ECONNABORTED): # Linux gives EMFILE when a process is not allowed # to allocate any more file descriptors. *BSD and # Win32 give (WSA)ENOBUFS. Linux can also give # ENFILE if the system is out of inodes, or ENOMEM # if there is insufficient memory to allocate a new # dentry. ECONNABORTED is documented as possible on # both Linux and Windows, but it is not clear # whether there are actually any circumstances under # which it can happen (one might expect it to be # possible if a client sends a FIN or RST after the # server sends a SYN|ACK but before application code # calls accept(2), however at least on Linux this # _seems_ to be short-circuited by syncookies. log.msg("Could not accept new connection (%s)" % (errorcode[e.args[0]], )) break raise fdesc._setCloseOnExec(skt.fileno()) protocol = self.factory.buildProtocol(self._buildAddr(addr)) if protocol is None: skt.close() continue s = self.sessionno self.sessionno = s + 1 transport = self.transport(skt, protocol, addr, self, s, self.reactor) transport = self._preMakeConnection(transport) protocol.makeConnection(transport) else:
def createInternetSocket(self): s = socket.socket(self.addressFamily, self.socketType) s.setblocking(0) fdesc._setCloseOnExec(s.fileno()) return s
def doRead(self): """Called when my socket is ready for reading. This accepts a connection and calls self.protocol() to handle the wire-level protocol. """ try: if platformType == "posix": numAccepts = self.numberAccepts else: # win32 event loop breaks if we do more than one accept() # in an iteration of the event loop. numAccepts = 1 for i in range(numAccepts): # we need this so we can deal with a factory's buildProtocol # calling our loseConnection if self.disconnecting: return try: skt, addr = self.socket.accept() except socket.error, e: if e.args[0] in (EWOULDBLOCK, EAGAIN): self.numberAccepts = i break elif e.args[0] == EPERM: # Netfilter on Linux may have rejected the # connection, but we get told to try to accept() # anyway. continue elif e.args[0] in (EMFILE, ENOBUFS, ENFILE, ENOMEM, ECONNABORTED): # Linux gives EMFILE when a process is not allowed # to allocate any more file descriptors. *BSD and # Win32 give (WSA)ENOBUFS. Linux can also give # ENFILE if the system is out of inodes, or ENOMEM # if there is insufficient memory to allocate a new # dentry. ECONNABORTED is documented as possible on # both Linux and Windows, but it is not clear # whether there are actually any circumstances under # which it can happen (one might expect it to be # possible if a client sends a FIN or RST after the # server sends a SYN|ACK but before application code # calls accept(2), however at least on Linux this # _seems_ to be short-circuited by syncookies. log.msg("Could not accept new connection (%s)" % ( errorcode[e.args[0]],)) break raise fdesc._setCloseOnExec(skt.fileno()) protocol = self.factory.buildProtocol(self._buildAddr(addr)) if protocol is None: skt.close() continue s = self.sessionno self.sessionno = s+1 transport = self.transport(skt, protocol, addr, self, s, self.reactor) transport = self._preMakeConnection(transport) protocol.makeConnection(transport) else: