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/*
* Copyright 2013 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef RTC_BASE_ASYNCRESOLVERINTERFACE_H_
#define RTC_BASE_ASYNCRESOLVERINTERFACE_H_
#include "rtc_base/sigslot.h"
#include "rtc_base/socketaddress.h"
namespace rtc {
// This interface defines the methods to resolve the address asynchronously.
class AsyncResolverInterface {
public:
AsyncResolverInterface();
virtual ~AsyncResolverInterface();
// Start address resolve process.
virtual void Start(const SocketAddress& addr) = 0;
// Returns top most resolved address of |family|
virtual bool GetResolvedAddress(int family, SocketAddress* addr) const = 0;
// Returns error from resolver.
virtual int GetError() const = 0;
// Delete the resolver.
virtual void Destroy(bool wait) = 0;
// Returns top most resolved IPv4 address if address is resolved successfully.
// Otherwise returns address set in SetAddress.
SocketAddress address() const {
SocketAddress addr;
GetResolvedAddress(AF_INET, &addr);
return addr;
}
// This signal is fired when address resolve process is completed.
sigslot::signal1<AsyncResolverInterface*> SignalDone;
};
} // namespace rtc
#endif
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