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 // Original authors: jib@mozilla.com, ekr@rtfm.com 8 9 // Some of this code is cut-and-pasted from nICEr. Copyright is: 10 11 /* 12 Copyright (c) 2007, Adobe Systems, Incorporated 13 All rights reserved. 14 15 Redistribution and use in source and binary forms, with or without 16 modification, are permitted provided that the following conditions are 17 met: 18 19 * Redistributions of source code must retain the above copyright 20 notice, this list of conditions and the following disclaimer. 21 22 * Redistributions in binary form must reproduce the above copyright 23 notice, this list of conditions and the following disclaimer in the 24 documentation and/or other materials provided with the distribution. 25 26 * Neither the name of Adobe Systems, Network Resonance nor the names of its 27 contributors may be used to endorse or promote products derived from 28 this software without specific prior written permission. 29 30 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 31 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 32 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 33 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 34 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 35 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 36 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 37 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 38 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 39 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 40 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 41 */ 42 43 #ifndef nriceresolver_h__ 44 #define nriceresolver_h__ 45 46 #include <map> 47 #include <string> 48 #include "nspr.h" 49 #include "prnetdb.h" 50 #include "nsIDNSService.h" 51 #include "nsIDNSListener.h" 52 #include "nsICancelable.h" 53 #include "nricectx.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 private: 64 ~NrIceResolver(); 65 66 public: 67 NrIceResolver(); 68 69 nsresult Init(); 70 nr_resolver* AllocateResolver(); 71 void DestroyResolver(); 72 NS_INLINE_DECL_THREADSAFE_REFCOUNTING(NrIceResolver) 73 74 int resolve(nr_resolver_resource* resource, 75 int (*cb)(void* cb_arg, nr_transport_addr* addr), void* cb_arg, 76 void** handle); 77 78 private: 79 // Implementations of vtbl functions 80 static int destroy(void** objp); 81 static int resolve(void* obj, nr_resolver_resource* resource, 82 int (*cb)(void* cb_arg, nr_transport_addr* addr), 83 void* cb_arg, void** handle); 84 static void resolve_cb(NR_SOCKET s, int how, void* cb_arg); 85 static int cancel(void* obj, void* handle); 86 87 class PendingResolution : public nsIDNSListener { 88 public: PendingResolution(nsIEventTarget * thread,uint16_t port,int transport,int (* cb)(void * cb_arg,nr_transport_addr * addr),void * cb_arg)89 PendingResolution(nsIEventTarget* thread, uint16_t port, int transport, 90 int (*cb)(void* cb_arg, nr_transport_addr* addr), 91 void* cb_arg) 92 : thread_(thread), 93 port_(port), 94 transport_(transport), 95 cb_(cb), 96 cb_arg_(cb_arg) {} 97 NS_IMETHOD OnLookupComplete(nsICancelable* request, nsIDNSRecord* record, 98 nsresult status) override; 99 100 int cancel(); 101 nsCOMPtr<nsICancelable> request_; 102 NS_DECL_THREADSAFE_ISUPPORTS 103 104 private: 105 virtual ~PendingResolution() = default; 106 107 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 }; 113 114 nr_resolver_vtbl* vtbl_; 115 nsCOMPtr<nsIEventTarget> sts_thread_; 116 nsCOMPtr<nsIDNSService> dns_; 117 #ifdef DEBUG 118 int allocated_resolvers_; 119 #endif 120 }; 121 122 } // End of namespace mozilla 123 #endif 124