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comparison frontends/src/jp/base.py @ 1604:9ac78437000d

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jp (base): added quitFromSignal method to quit from signal handler with errcode without traceback, and addOnQuitCallback to manage cleaning callbacks
author Goffi <goffi@goffi.org>
date Sun, 15 Nov 2015 23:16:54 +0100
parents 8d41cd4da2f6
children 0aded9648c5c
comparison
equal deleted inserted replaced
1603:2b82d846848e 1604:9ac78437000d
104 104
105 @progress_id.setter 105 @progress_id.setter
106 def progress_id(self, value): 106 def progress_id(self, value):
107 self._progress_id = value 107 self._progress_id = value
108 108
109
110 def addOnQuitCallback(self, callback, *args, **kwargs):
111 """Add a callback which will be called on quit command
112
113 @param callback(callback): method to call
114 """
115 try:
116 callbacks_list = self._onQuitCallbacks
117 except AttributeError:
118 callbacks_list = self._onQuitCallbacks = []
119 finally:
120 callbacks_list.append((callback, args, kwargs))
121
109 def _make_parents(self): 122 def _make_parents(self):
110 self.parents = {} 123 self.parents = {}
111 124
112 # we have a special case here as the start-session option is present only if connection is not needed, 125 # we have a special case here as the start-session option is present only if connection is not needed,
113 # so we create two similar parents, one with the option, the other one without it 126 # so we create two similar parents, one with the option, the other one without it
180 try: 193 try:
181 self.loop.quit() 194 self.loop.quit()
182 except AttributeError: 195 except AttributeError:
183 pass 196 pass
184 197
198 def quitFromSignal(self, errcode=0):
199 """Same as self.quit, but from a signal handler
200
201 /!\: return must be used after calling this method !
202 """
203 assert self.need_loop
204 # XXX: python-dbus will show a traceback if we exit in a signal handler with an error code
205 # so we use this little timeout trick to avoid it
206 GLib.timeout_add(0, self.quit, errcode)
207
185 def quit(self, errcode=0): 208 def quit(self, errcode=0):
209 # first the onQuitCallbacks
210 try:
211 callbacks_list = self._onQuitCallbacks
212 except AttributeError:
213 pass
214 else:
215 for callback, args, kwargs in callbacks_list:
216 callback(*args, **kwargs)
217
186 self.stop_loop() 218 self.stop_loop()
187 if errcode: 219 if errcode:
188 sys.exit(errcode) 220 sys.exit(errcode)
189 221
190 def check_jids(self, jids): 222 def check_jids(self, jids):