110 lines
4.3 KiB
C++
110 lines
4.3 KiB
C++
/*
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* Copyright 2019 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 API_ICE_TRANSPORT_INTERFACE_H_
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#define API_ICE_TRANSPORT_INTERFACE_H_
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#include <string>
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#include "api/async_dns_resolver.h"
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#include "api/async_resolver_factory.h"
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#include "api/rtc_error.h"
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#include "api/rtc_event_log/rtc_event_log.h"
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#include "api/scoped_refptr.h"
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#include "rtc_base/ref_count.h"
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namespace cricket {
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class IceTransportInternal;
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class PortAllocator;
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} // namespace cricket
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namespace webrtc {
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// An ICE transport, as represented to the outside world.
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// This object is refcounted, and is therefore alive until the
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// last holder has released it.
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class IceTransportInterface : public rtc::RefCountInterface {
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public:
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// Accessor for the internal representation of an ICE transport.
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// The returned object can only be safely used on the signalling thread.
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// TODO(crbug.com/907849): Add API calls for the functions that have to
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// be exposed to clients, and stop allowing access to the
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// cricket::IceTransportInternal API.
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virtual cricket::IceTransportInternal* internal() = 0;
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};
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struct IceTransportInit final {
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public:
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IceTransportInit() = default;
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IceTransportInit(const IceTransportInit&) = delete;
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IceTransportInit(IceTransportInit&&) = default;
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IceTransportInit& operator=(const IceTransportInit&) = delete;
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IceTransportInit& operator=(IceTransportInit&&) = default;
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cricket::PortAllocator* port_allocator() { return port_allocator_; }
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void set_port_allocator(cricket::PortAllocator* port_allocator) {
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port_allocator_ = port_allocator;
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}
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AsyncDnsResolverFactoryInterface* async_dns_resolver_factory() {
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return async_dns_resolver_factory_;
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}
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void set_async_dns_resolver_factory(
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AsyncDnsResolverFactoryInterface* async_dns_resolver_factory) {
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RTC_DCHECK(!async_resolver_factory_);
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async_dns_resolver_factory_ = async_dns_resolver_factory;
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}
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AsyncResolverFactory* async_resolver_factory() {
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return async_resolver_factory_;
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}
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ABSL_DEPRECATED("bugs.webrtc.org/12598")
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void set_async_resolver_factory(
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AsyncResolverFactory* async_resolver_factory) {
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RTC_DCHECK(!async_dns_resolver_factory_);
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async_resolver_factory_ = async_resolver_factory;
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}
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RtcEventLog* event_log() { return event_log_; }
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void set_event_log(RtcEventLog* event_log) { event_log_ = event_log; }
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private:
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cricket::PortAllocator* port_allocator_ = nullptr;
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AsyncDnsResolverFactoryInterface* async_dns_resolver_factory_ = nullptr;
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// For backwards compatibility. Only one resolver factory can be set.
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AsyncResolverFactory* async_resolver_factory_ = nullptr;
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RtcEventLog* event_log_ = nullptr;
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// TODO(https://crbug.com/webrtc/12657): Redesign to have const members.
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};
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// TODO(qingsi): The factory interface is defined in this file instead of its
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// namesake file ice_transport_factory.h to avoid the extra dependency on p2p/
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// introduced there by the p2p/-dependent factory methods. Move the factory
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// methods to a different file or rename it.
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class IceTransportFactory {
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public:
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virtual ~IceTransportFactory() = default;
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// As a refcounted object, the returned ICE transport may outlive the host
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// construct into which its reference is given, e.g. a peer connection. As a
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// result, the returned ICE transport should not hold references to any object
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// that the transport does not own and that has a lifetime bound to the host
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// construct. Also, assumptions on the thread safety of the returned transport
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// should be clarified by implementations. For example, a peer connection
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// requires the returned transport to be constructed and destroyed on the
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// network thread and an ICE transport factory that intends to work with a
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// peer connection should offer transports compatible with these assumptions.
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virtual rtc::scoped_refptr<IceTransportInterface> CreateIceTransport(
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const std::string& transport_name,
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int component,
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IceTransportInit init) = 0;
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};
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} // namespace webrtc
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#endif // API_ICE_TRANSPORT_INTERFACE_H_
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