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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+// Original authors: jib@mozilla.com, ekr@rtfm.com
+
+// Some of this code is cut-and-pasted from nICEr. Copyright is:
+
+/*
+Copyright (c) 2007, Adobe Systems, Incorporated
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+* 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.
+
+* Neither the name of Adobe Systems, Network Resonance nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"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 COPYRIGHT
+OWNER OR CONTRIBUTORS 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 nriceresolver_h__
+#define nriceresolver_h__
+
+#include <map>
+#include <string>
+#include "nspr.h"
+#include "prnetdb.h"
+#include "nsIDNSService.h"
+#include "nsIDNSListener.h"
+#include "nsICancelable.h"
+
+typedef struct nr_resolver_ nr_resolver;
+typedef struct nr_resolver_vtbl_ nr_resolver_vtbl;
+typedef struct nr_transport_addr_ nr_transport_addr;
+typedef struct nr_resolver_resource_ nr_resolver_resource;
+
+namespace mozilla {
+
+class NrIceResolver
+{
+ private:
+ ~NrIceResolver();
+ public:
+ NrIceResolver();
+
+ nsresult Init();
+ nr_resolver *AllocateResolver();
+ void DestroyResolver();
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(NrIceResolver)
+
+ int resolve(nr_resolver_resource *resource,
+ int (*cb)(void *cb_arg, nr_transport_addr *addr),
+ void *cb_arg, void **handle);
+
+ private:
+ // Implementations of vtbl functions
+ static int destroy(void **objp);
+ static int resolve(void *obj, nr_resolver_resource *resource,
+ int (*cb)(void *cb_arg, nr_transport_addr *addr),
+ void *cb_arg, void **handle);
+ static void resolve_cb(NR_SOCKET s, int how, void *cb_arg);
+ static int cancel(void *obj, void *handle);
+
+ class PendingResolution : public nsIDNSListener
+ {
+ public:
+ PendingResolution(nsIEventTarget *thread,
+ uint16_t port,
+ int transport,
+ int (*cb)(void *cb_arg, nr_transport_addr *addr),
+ void *cb_arg) :
+ thread_(thread),
+ port_(port),
+ transport_(transport),
+ cb_(cb), cb_arg_(cb_arg) {}
+ NS_IMETHOD OnLookupComplete(nsICancelable *request, nsIDNSRecord *record,
+ nsresult status) override;
+ int cancel();
+ nsCOMPtr<nsICancelable> request_;
+ NS_DECL_THREADSAFE_ISUPPORTS
+
+ private:
+ virtual ~PendingResolution(){};
+ nsCOMPtr<nsIEventTarget> thread_;
+ uint16_t port_;
+ int transport_;
+ int (*cb_)(void *cb_arg, nr_transport_addr *addr);
+ void *cb_arg_;
+ };
+
+ nr_resolver_vtbl* vtbl_;
+ nsCOMPtr<nsIEventTarget> sts_thread_;
+ nsCOMPtr<nsIDNSService> dns_;
+#ifdef DEBUG
+ int allocated_resolvers_;
+#endif
+};
+
+} // End of namespace mozilla
+#endif