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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/rtc_base/async_dns_resolver.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/rtc_base/async_dns_resolver.h')
-rw-r--r-- | third_party/libwebrtc/rtc_base/async_dns_resolver.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/async_dns_resolver.h b/third_party/libwebrtc/rtc_base/async_dns_resolver.h new file mode 100644 index 0000000000..288751efa4 --- /dev/null +++ b/third_party/libwebrtc/rtc_base/async_dns_resolver.h @@ -0,0 +1,63 @@ +/* + * Copyright 2023 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_ASYNC_DNS_RESOLVER_H_ +#define RTC_BASE_ASYNC_DNS_RESOLVER_H_ + +#include <vector> + +#include "api/async_dns_resolver.h" +#include "api/sequence_checker.h" +#include "api/task_queue/pending_task_safety_flag.h" +#include "rtc_base/ref_counted_object.h" +#include "rtc_base/system/rtc_export.h" +#include "rtc_base/thread_annotations.h" + +namespace webrtc { +// This file contains a default implementation of +// webrtc::AsyncDnsResolverInterface, for use when there is no need for special +// treatment. + +class AsyncDnsResolverResultImpl : public AsyncDnsResolverResult { + public: + bool GetResolvedAddress(int family, rtc::SocketAddress* addr) const override; + // Returns error from resolver. + int GetError() const override; + + private: + friend class AsyncDnsResolver; + RTC_NO_UNIQUE_ADDRESS webrtc::SequenceChecker sequence_checker_; + rtc::SocketAddress addr_ RTC_GUARDED_BY(sequence_checker_); + std::vector<rtc::IPAddress> addresses_ RTC_GUARDED_BY(sequence_checker_); + int error_ RTC_GUARDED_BY(sequence_checker_); +}; + +class RTC_EXPORT AsyncDnsResolver : public AsyncDnsResolverInterface { + public: + AsyncDnsResolver(); + ~AsyncDnsResolver(); + // Start address resolution of the hostname in `addr`. + void Start(const rtc::SocketAddress& addr, + absl::AnyInvocable<void()> callback) override; + // Start address resolution of the hostname in `addr` matching `family`. + void Start(const rtc::SocketAddress& addr, + int family, + absl::AnyInvocable<void()> callback) override; + const AsyncDnsResolverResult& result() const override; + + private: + class State; + ScopedTaskSafety safety_; // To check for client going away + rtc::scoped_refptr<State> state_; // To check for "this" going away + AsyncDnsResolverResultImpl result_; + absl::AnyInvocable<void()> callback_; +}; + +} // namespace webrtc +#endif // RTC_BASE_ASYNC_DNS_RESOLVER_H_ |