diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/libwebrtc/rtc_base/async_resolver.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/rtc_base/async_resolver.h')
-rw-r--r-- | third_party/libwebrtc/rtc_base/async_resolver.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/async_resolver.h b/third_party/libwebrtc/rtc_base/async_resolver.h new file mode 100644 index 0000000000..46be43860e --- /dev/null +++ b/third_party/libwebrtc/rtc_base/async_resolver.h @@ -0,0 +1,75 @@ +/* + * Copyright 2008 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_RESOLVER_H_ +#define RTC_BASE_ASYNC_RESOLVER_H_ + +#if defined(WEBRTC_POSIX) +#include <sys/socket.h> +#elif WEBRTC_WIN +#include <winsock2.h> // NOLINT +#endif + +#include <vector> + +#include "api/sequence_checker.h" +#include "api/task_queue/pending_task_safety_flag.h" +#include "rtc_base/async_resolver_interface.h" +#include "rtc_base/event.h" +#include "rtc_base/ip_address.h" +#include "rtc_base/socket_address.h" +#include "rtc_base/system/no_unique_address.h" +#include "rtc_base/system/rtc_export.h" +#include "rtc_base/thread.h" +#include "rtc_base/thread_annotations.h" + +namespace rtc { + +// AsyncResolver will perform async DNS resolution, signaling the result on +// the SignalDone from AsyncResolverInterface when the operation completes. +// +// This class is thread-compatible, and all methods and destruction needs to +// happen from the same rtc::Thread, except for Destroy which is allowed to +// happen on another context provided it's not happening concurrently to another +// public API call, and is the last access to the object. +class RTC_EXPORT AsyncResolver : public AsyncResolverInterface { + public: + AsyncResolver(); + ~AsyncResolver() override; + + void Start(const SocketAddress& addr) override; + void Start(const SocketAddress& addr, int family) override; + bool GetResolvedAddress(int family, SocketAddress* addr) const override; + int GetError() const override; + void Destroy(bool wait) override; + + const std::vector<IPAddress>& addresses() const; + + private: + // Fwd decl. + struct State; + + void ResolveDone(std::vector<IPAddress> addresses, int error) + RTC_EXCLUSIVE_LOCKS_REQUIRED(sequence_checker_); + void MaybeSelfDestruct(); + + SocketAddress addr_ RTC_GUARDED_BY(sequence_checker_); + std::vector<IPAddress> addresses_ RTC_GUARDED_BY(sequence_checker_); + int error_ RTC_GUARDED_BY(sequence_checker_); + bool recursion_check_ = + false; // Protects against SignalDone calling into Destroy. + bool destroy_called_ = false; + scoped_refptr<State> state_; + RTC_NO_UNIQUE_ADDRESS webrtc::SequenceChecker sequence_checker_; +}; + +} // namespace rtc + +#endif // RTC_BASE_ASYNC_RESOLVER_H_ |