a23f0ca4ba
R=wu@webrtc.org Review URL: https://webrtc-codereview.appspot.com/3839005 git-svn-id: http://webrtc.googlecode.com/svn/trunk@5120 4adac7df-926f-26a2-2b94-8c16560cd09d
65 lines
2.5 KiB
C++
65 lines
2.5 KiB
C++
/*
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* libjingle
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* Copyright 2013, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_BASE_ASYNCRESOLVERINTERFACE_H_
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#define TALK_BASE_ASYNCRESOLVERINTERFACE_H_
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#include "talk/base/sigslot.h"
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#include "talk/base/socketaddress.h"
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namespace talk_base {
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// This interface defines the methods to resolve the address asynchronously.
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class AsyncResolverInterface {
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public:
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AsyncResolverInterface() {}
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virtual ~AsyncResolverInterface() {}
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// Start address resolve process.
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virtual void Start(const SocketAddress& addr) = 0;
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// Returns top most resolved address of |family|
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virtual bool GetResolvedAddress(int family, SocketAddress* addr) const = 0;
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// Returns error from resolver.
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virtual int GetError() const = 0;
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// Delete the resolver.
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virtual void Destroy(bool wait) = 0;
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// Returns top most resolved IPv4 address if address is resolved successfully.
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// Otherwise returns address set in SetAddress.
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SocketAddress address() const {
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SocketAddress addr;
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GetResolvedAddress(AF_INET, &addr);
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return addr;
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}
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// This signal is fired when address resolve process is completed.
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sigslot::signal1<AsyncResolverInterface*> SignalDone;
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};
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} // namespace talk_base
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#endif
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