Adds trunk/talk folder of revision 359 from libjingles google code to
trunk/talk
git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/p2p/base/stunrequest.h b/talk/p2p/base/stunrequest.h
new file mode 100644
index 0000000..f2c85b3
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+++ b/talk/p2p/base/stunrequest.h
@@ -0,0 +1,133 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TALK_P2P_BASE_STUNREQUEST_H_
+#define TALK_P2P_BASE_STUNREQUEST_H_
+
+#include "talk/base/sigslot.h"
+#include "talk/base/thread.h"
+#include "talk/p2p/base/stun.h"
+#include <map>
+#include <string>
+
+namespace cricket {
+
+class StunRequest;
+
+// Manages a set of STUN requests, sending and resending until we receive a
+// response or determine that the request has timed out.
+class StunRequestManager {
+public:
+ StunRequestManager(talk_base::Thread* thread);
+ ~StunRequestManager();
+
+ // Starts sending the given request (perhaps after a delay).
+ void Send(StunRequest* request);
+ void SendDelayed(StunRequest* request, int delay);
+
+ // Removes a stun request that was added previously. This will happen
+ // automatically when a request succeeds, fails, or times out.
+ void Remove(StunRequest* request);
+
+ // Removes all stun requests that were added previously.
+ void Clear();
+
+ // Determines whether the given message is a response to one of the
+ // outstanding requests, and if so, processes it appropriately.
+ bool CheckResponse(StunMessage* msg);
+ bool CheckResponse(const char* data, size_t size);
+
+ bool empty() { return requests_.empty(); }
+
+ // Raised when there are bytes to be sent.
+ sigslot::signal3<const void*, size_t, StunRequest*> SignalSendPacket;
+
+private:
+ typedef std::map<std::string, StunRequest*> RequestMap;
+
+ talk_base::Thread* thread_;
+ RequestMap requests_;
+
+ friend class StunRequest;
+};
+
+// Represents an individual request to be sent. The STUN message can either be
+// constructed beforehand or built on demand.
+class StunRequest : public talk_base::MessageHandler {
+public:
+ StunRequest();
+ StunRequest(StunMessage* request);
+ virtual ~StunRequest();
+
+ // Causes our wrapped StunMessage to be Prepared
+ void Construct();
+
+ // The manager handling this request (if it has been scheduled for sending).
+ StunRequestManager* manager() { return manager_; }
+
+ // Returns the transaction ID of this request.
+ const std::string& id() { return msg_->transaction_id(); }
+
+ // Returns the STUN type of the request message.
+ int type();
+
+ // Returns a const pointer to |msg_|.
+ const StunMessage* msg() const;
+
+ // Time elapsed since last send (in ms)
+ uint32 Elapsed() const;
+
+protected:
+ int count_;
+ bool timeout_;
+
+ // Fills in a request object to be sent. Note that request's transaction ID
+ // will already be set and cannot be changed.
+ virtual void Prepare(StunMessage* request) {}
+
+ // Called when the message receives a response or times out.
+ virtual void OnResponse(StunMessage* response) {}
+ virtual void OnErrorResponse(StunMessage* response) {}
+ virtual void OnTimeout() {}
+ virtual int GetNextDelay();
+
+private:
+ void set_manager(StunRequestManager* manager);
+
+ // Handles messages for sending and timeout.
+ void OnMessage(talk_base::Message* pmsg);
+
+ StunRequestManager* manager_;
+ StunMessage* msg_;
+ uint32 tstamp_;
+
+ friend class StunRequestManager;
+};
+
+} // namespace cricket
+
+#endif // TALK_P2P_BASE_STUNREQUEST_H_