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Side by Side Diff: remoting/jingle_glue/iq_sender.h

Issue 390983003: Remove remoting/jingle_glue (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 5 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef REMOTING_JINGLE_GLUE_IQ_SENDER_H_
6 #define REMOTING_JINGLE_GLUE_IQ_SENDER_H_
7
8 #include <map>
9 #include <string>
10
11 #include "base/callback.h"
12 #include "base/compiler_specific.h"
13 #include "base/gtest_prod_util.h"
14 #include "base/memory/scoped_ptr.h"
15 #include "base/memory/weak_ptr.h"
16 #include "remoting/jingle_glue/signal_strategy.h"
17
18 namespace base {
19 class TimeDelta;
20 } // namespace base
21
22 namespace buzz {
23 class XmlElement;
24 } // namespace buzz
25
26 namespace remoting {
27
28 class IqRequest;
29 class SignalStrategy;
30
31 // IqSender handles sending iq requests and routing of responses to
32 // those requests.
33 class IqSender : public SignalStrategy::Listener {
34 public:
35 // Callback that is called when an Iq response is received. Called
36 // with the |response| set to NULL in case of a timeout.
37 typedef base::Callback<void(IqRequest* request,
38 const buzz::XmlElement* response)> ReplyCallback;
39
40 explicit IqSender(SignalStrategy* signal_strategy);
41 virtual ~IqSender();
42
43 // Send an iq stanza. Returns an IqRequest object that represends
44 // the request. |callback| is called when response to |stanza| is
45 // received. Destroy the returned IqRequest to cancel the callback.
46 // Caller must take ownership of the result. Result must be
47 // destroyed before sender is destroyed.
48 scoped_ptr<IqRequest> SendIq(scoped_ptr<buzz::XmlElement> stanza,
49 const ReplyCallback& callback);
50
51 // Same as above, but also formats the message.
52 scoped_ptr<IqRequest> SendIq(const std::string& type,
53 const std::string& addressee,
54 scoped_ptr<buzz::XmlElement> iq_body,
55 const ReplyCallback& callback);
56
57 // SignalStrategy::Listener implementation.
58 virtual void OnSignalStrategyStateChange(
59 SignalStrategy::State state) OVERRIDE;
60 virtual bool OnSignalStrategyIncomingStanza(
61 const buzz::XmlElement* stanza) OVERRIDE;
62
63 private:
64 typedef std::map<std::string, IqRequest*> IqRequestMap;
65 friend class IqRequest;
66
67 // Helper function used to create iq stanzas.
68 static scoped_ptr<buzz::XmlElement> MakeIqStanza(
69 const std::string& type,
70 const std::string& addressee,
71 scoped_ptr<buzz::XmlElement> iq_body);
72
73 // Removes |request| from the list of pending requests. Called by IqRequest.
74 void RemoveRequest(IqRequest* request);
75
76 SignalStrategy* signal_strategy_;
77 IqRequestMap requests_;
78
79 DISALLOW_COPY_AND_ASSIGN(IqSender);
80 };
81
82 // This call must only be used on the thread it was created on.
83 class IqRequest : public base::SupportsWeakPtr<IqRequest> {
84 public:
85 IqRequest(IqSender* sender, const IqSender::ReplyCallback& callback,
86 const std::string& addressee);
87 ~IqRequest();
88
89 // Sets timeout for the request. When the timeout expires the
90 // callback is called with the |response| set to NULL.
91 void SetTimeout(base::TimeDelta timeout);
92
93 private:
94 friend class IqSender;
95
96 void CallCallback(const buzz::XmlElement* stanza);
97 void OnTimeout();
98
99 // Called by IqSender when a response is received.
100 void OnResponse(const buzz::XmlElement* stanza);
101
102 void DeliverResponse(scoped_ptr<buzz::XmlElement> stanza);
103
104 IqSender* sender_;
105 IqSender::ReplyCallback callback_;
106 std::string addressee_;
107
108 DISALLOW_COPY_AND_ASSIGN(IqRequest);
109 };
110
111 } // namespace remoting
112
113 #endif // REMOTING_JINGLE_GLUE_IQ_SENDER_H_
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