media/mtransport/nriceresolverfake.h

   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 author: 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 nriceresolverfake_h__
  45 #define nriceresolverfake_h__
  46
  47 #include <map>
  48 #include <string>
  49
  50 #include "nspr.h"
  51 #include "prnetdb.h"
  52
  53 typedef struct nr_resolver_ nr_resolver;
  54 typedef struct nr_resolver_vtbl_ nr_resolver_vtbl;
  55 typedef struct nr_transport_addr_ nr_transport_addr;
  56 typedef struct nr_resolver_resource_ nr_resolver_resource;
  57
  58 namespace mozilla {
  59
  60 class NrIceResolverFake {
  61  public:
  62   NrIceResolverFake();
  63   ~NrIceResolverFake();
  64
  65   void SetAddr(const std::string& hostname, const PRNetAddr& addr) {
  66     addrs_[hostname] = addr;
  67   }
  68
  69   nr_resolver *AllocateResolver();
  70
  71   void DestroyResolver();
  72
  73 private:
  74   // Implementations of vtbl functions
  75   static int destroy(void **objp);
  76   static int resolve(void *obj,
  77                      nr_resolver_resource *resource,
  78                      int (*cb)(void *cb_arg,
  79                                nr_transport_addr *addr),
  80                      void *cb_arg,
  81                      void **handle);
  82   static void resolve_cb(NR_SOCKET s, int how, void *cb_arg);
  83   static int cancel(void *obj, void *handle);
  84
  85   // Get an address.
  86   const PRNetAddr *Resolve(const std::string& hostname) {
  87     if (!addrs_.count(hostname))
  88       return nullptr;
  89
  90     return &addrs_[hostname];
  91   }
  92
  93
  94   struct PendingResolution {
  95     PendingResolution(NrIceResolverFake *resolver,
  96                       const std::string& hostname,
  97                       uint16_t port,
  98                       int transport,
  99                       int (*cb)(void *cb_arg, nr_transport_addr *addr),
 100                       void *cb_arg) :
 101         resolver_(resolver),
 102         hostname_(hostname),
 103         port_(port),
 104         transport_(transport),
 105         cb_(cb), cb_arg_(cb_arg) {}
 106
 107     NrIceResolverFake *resolver_;
 108     std::string hostname_;
 109     uint16_t port_;
 110     int transport_;
 111     int (*cb_)(void *cb_arg, nr_transport_addr *addr);
 112     void *cb_arg_;
 113     void *timer_handle_;
 114   };
 115
 116   nr_resolver_vtbl* vtbl_;
 117   std::map<std::string, PRNetAddr> addrs_;
 118   uint32_t delay_ms_;
 119   int allocated_resolvers_;
 120 };
 121
 122 }  // End of namespace mozilla
 123
 124 #endif