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7fa9057a05
This is part of a large-scale effort to increase adoption of absl::string_view across the WebRTC code base. This CL converts the majority of "const std::string&"s in function parameters under rtc_base/ to absl::string_view. Bug: webrtc:13579 Change-Id: I2b1e3776aa42326aa405f76bb324a2d233b21dca Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/254081 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Xavier Lepaul <xalep@webrtc.org> Reviewed-by: Anders Lilienthal <andersc@webrtc.org> Reviewed-by: Per Kjellander <perkj@webrtc.org> Commit-Queue: Ali Tofigh <alito@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36239}
51 lines
2.1 KiB
C++
51 lines
2.1 KiB
C++
/*
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* Copyright 2018 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef RTC_BASE_MDNS_RESPONDER_INTERFACE_H_
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#define RTC_BASE_MDNS_RESPONDER_INTERFACE_H_
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#include <functional>
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#include <string>
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#include "absl/strings/string_view.h"
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#include "rtc_base/ip_address.h"
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namespace webrtc {
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// Defines an mDNS responder that can be used in ICE candidate gathering, where
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// the local IP addresses of host candidates are replaced by mDNS hostnames.
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class MdnsResponderInterface {
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public:
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using NameCreatedCallback =
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std::function<void(const rtc::IPAddress&, absl::string_view)>;
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using NameRemovedCallback = std::function<void(bool)>;
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MdnsResponderInterface() = default;
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virtual ~MdnsResponderInterface() = default;
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// Asynchronously creates and returns a new name via `callback` for `addr` if
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// there is no name mapped to it by this responder, and initializes the
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// reference count of this name to one. Otherwise the existing name mapped to
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// `addr` is returned and its reference count is incremented by one.
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virtual void CreateNameForAddress(const rtc::IPAddress& addr,
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NameCreatedCallback callback) = 0;
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// Decrements the reference count of the mapped name of `addr`, if
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// there is a map created previously via CreateNameForAddress; asynchronously
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// removes the association between `addr` and its mapped name, and returns
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// true via `callback` if the decremented reference count reaches zero.
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// Otherwise no operation is done and false is returned via `callback`
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// asynchronously.
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virtual void RemoveNameForAddress(const rtc::IPAddress& addr,
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NameRemovedCallback callback) = 0;
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};
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} // namespace webrtc
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#endif // RTC_BASE_MDNS_RESPONDER_INTERFACE_H_
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