media/mtransport/nriceresolver.h

branch
TOR_BUG_9701
changeset 8
97036ab72558
equal deleted inserted replaced
-1:000000000000 0:d22feabb929f
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7
8 // Original authors: jib@mozilla.com, ekr@rtfm.com
9
10 // Some of this code is cut-and-pasted from nICEr. Copyright is:
11
12 /*
13 Copyright (c) 2007, Adobe Systems, Incorporated
14 All rights reserved.
15
16 Redistribution and use in source and binary forms, with or without
17 modification, are permitted provided that the following conditions are
18 met:
19
20 * Redistributions of source code must retain the above copyright
21 notice, this list of conditions and the following disclaimer.
22
23 * Redistributions in binary form must reproduce the above copyright
24 notice, this list of conditions and the following disclaimer in the
25 documentation and/or other materials provided with the distribution.
26
27 * Neither the name of Adobe Systems, Network Resonance nor the names of its
28 contributors may be used to endorse or promote products derived from
29 this software without specific prior written permission.
30
31 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
34 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
37 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
38 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
39 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
41 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 #ifndef nriceresolver_h__
45 #define nriceresolver_h__
46
47 #include <map>
48 #include <string>
49 #include "nspr.h"
50 #include "prnetdb.h"
51 #include "nsIDNSService.h"
52 #include "nsIDNSListener.h"
53 #include "nsICancelable.h"
54
55 typedef struct nr_resolver_ nr_resolver;
56 typedef struct nr_resolver_vtbl_ nr_resolver_vtbl;
57 typedef struct nr_transport_addr_ nr_transport_addr;
58 typedef struct nr_resolver_resource_ nr_resolver_resource;
59
60 namespace mozilla {
61
62 class NrIceResolver
63 {
64 public:
65 NrIceResolver();
66 ~NrIceResolver();
67
68 nsresult Init();
69 nr_resolver *AllocateResolver();
70 void DestroyResolver();
71 NS_INLINE_DECL_THREADSAFE_REFCOUNTING(NrIceResolver)
72
73 private:
74 // Implementations of vtbl functions
75 static int destroy(void **objp);
76 static int resolve(void *obj, nr_resolver_resource *resource,
77 int (*cb)(void *cb_arg, nr_transport_addr *addr),
78 void *cb_arg, void **handle);
79 static void resolve_cb(NR_SOCKET s, int how, void *cb_arg);
80 static int cancel(void *obj, void *handle);
81
82 int resolve(nr_resolver_resource *resource,
83 int (*cb)(void *cb_arg, nr_transport_addr *addr),
84 void *cb_arg, void **handle);
85
86 class PendingResolution : public nsIDNSListener
87 {
88 public:
89 PendingResolution(nsIEventTarget *thread,
90 uint16_t port,
91 int transport,
92 int (*cb)(void *cb_arg, nr_transport_addr *addr),
93 void *cb_arg) :
94 thread_(thread),
95 port_(port),
96 transport_(transport),
97 cb_(cb), cb_arg_(cb_arg),
98 canceled_ (false) {}
99 virtual ~PendingResolution(){};
100 NS_IMETHOD OnLookupComplete(nsICancelable *request, nsIDNSRecord *record,
101 nsresult status);
102 int cancel();
103 nsCOMPtr<nsICancelable> request_;
104 NS_DECL_THREADSAFE_ISUPPORTS
105
106 private:
107 nsCOMPtr<nsIEventTarget> thread_;
108 uint16_t port_;
109 int transport_;
110 int (*cb_)(void *cb_arg, nr_transport_addr *addr);
111 void *cb_arg_;
112 bool canceled_;
113 };
114
115 nr_resolver_vtbl* vtbl_;
116 nsCOMPtr<nsIEventTarget> sts_thread_;
117 nsCOMPtr<nsIDNSService> dns_;
118 #ifdef DEBUG
119 int allocated_resolvers_;
120 #endif
121 };
122
123 } // End of namespace mozilla
124 #endif

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