I'm using a timer to manage timeout events, and would like to ensure that a particular method runs atomically without the handler issuing messages while the method is executing. Its basic form is:
handler.removeMessages(MSG_ONE); handler.removeMessages(MSG_TWO); ... if (conditionOne) handler.sendEmptyMessageDelayed(MSG_ONE, timeoutOne); if (conditionTwo) handler.sendEmptyMessageDelayed(MSG_TWO, timeoutTwo); ... What I want to avoid is a situation where, before the removeMessages() calls execute, one of the messages reaches its timeout and is delivered to the message queue, then I send a duplicate one immediately after. My goal is to guarantee that there is never more than one of each message type "in flight" on the handler at any given time. Does the Handler class synchronize on MessageQueue when delivering its messages? If so, then could I just synchronize on the MessageQueue? Or would that be a terrible idea, since it's used by entities other than just my Handler? -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
