add timeout for socket operations

plugin/fcitx.py

@@ -4,19 +4,22 @@ import os
 import vim
 import socket
 import struct
+
 FCITX_STATUS = struct.pack('i', 0)
 FCITX_OPEN   = struct.pack('i', 1 | (1 << 16))
 FCITX_CLOSE  = struct.pack('i', 1)
 INT_SIZE     = struct.calcsize('i')
 fcitxsocketfile = vim.eval('s:fcitxsocketfile')
+
 if fcitxsocketfile[0] == '@': # abstract socket
   fcitxsocketfile = '\x00' + fcitxsocketfile[1:]
 
 def fcitxtalk(command=None):
   sock = socket.socket(socket.AF_UNIX)
+  sock.settimeout(0.5)
   try:
     sock.connect(fcitxsocketfile)
-  except socket.error:
+  except (socket.error, socket.timeout):
     vim.command('echohl WarningMsg | echo "fcitx.vim: socket connection error" | echohl NONE')
     return
   try:
@@ -29,7 +32,7 @@ def fcitxtalk(command=None):
       sock.send(FCITX_OPEN)
     else:
       raise ValueError('unknown fcitx command')
-  except struct.error:
+  except (struct.error, socket.timeout):
     # if there's a proxy of some kind, connect and send *will* succeed when
     # fcitx isn't there.
     vim.command('echohl WarningMsg | echo "fcitx.vim: socket error" | echohl NONE')

plugin/fcitx.vim

@@ -1,7 +1,7 @@
 scriptencoding utf-8
 " fcitx.vim	remember fcitx's input state for each buffer
 " Author:       lilydjwg
-" Version:	1.2.4
+" Version:	1.2.5
 " URL:		http://www.vim.org/scripts/script.php?script_id=3764
 " ---------------------------------------------------------------------
 " Load Once: