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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/libwebrtc/call/adaptation/broadcast_resource_listener.cc | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.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/call/adaptation/broadcast_resource_listener.cc')
-rw-r--r-- | third_party/libwebrtc/call/adaptation/broadcast_resource_listener.cc | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/third_party/libwebrtc/call/adaptation/broadcast_resource_listener.cc b/third_party/libwebrtc/call/adaptation/broadcast_resource_listener.cc new file mode 100644 index 0000000000..505036db3d --- /dev/null +++ b/third_party/libwebrtc/call/adaptation/broadcast_resource_listener.cc @@ -0,0 +1,122 @@ +/* + * Copyright 2020 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. + */ + +#include "call/adaptation/broadcast_resource_listener.h" + +#include <algorithm> +#include <string> +#include <utility> + +#include "absl/strings/string_view.h" +#include "api/make_ref_counted.h" +#include "rtc_base/checks.h" +#include "rtc_base/synchronization/mutex.h" + +namespace webrtc { + +// The AdapterResource redirects resource usage measurements from its parent to +// a single ResourceListener. +class BroadcastResourceListener::AdapterResource : public Resource { + public: + explicit AdapterResource(absl::string_view name) : name_(std::move(name)) {} + ~AdapterResource() override { RTC_DCHECK(!listener_); } + + // The parent is letting us know we have a usage neasurement. + void OnResourceUsageStateMeasured(ResourceUsageState usage_state) { + MutexLock lock(&lock_); + if (!listener_) + return; + listener_->OnResourceUsageStateMeasured(rtc::scoped_refptr<Resource>(this), + usage_state); + } + + // Resource implementation. + std::string Name() const override { return name_; } + void SetResourceListener(ResourceListener* listener) override { + MutexLock lock(&lock_); + RTC_DCHECK(!listener_ || !listener); + listener_ = listener; + } + + private: + const std::string name_; + Mutex lock_; + ResourceListener* listener_ RTC_GUARDED_BY(lock_) = nullptr; +}; + +BroadcastResourceListener::BroadcastResourceListener( + rtc::scoped_refptr<Resource> source_resource) + : source_resource_(source_resource), is_listening_(false) { + RTC_DCHECK(source_resource_); +} + +BroadcastResourceListener::~BroadcastResourceListener() { + RTC_DCHECK(!is_listening_); +} + +rtc::scoped_refptr<Resource> BroadcastResourceListener::SourceResource() const { + return source_resource_; +} + +void BroadcastResourceListener::StartListening() { + MutexLock lock(&lock_); + RTC_DCHECK(!is_listening_); + source_resource_->SetResourceListener(this); + is_listening_ = true; +} + +void BroadcastResourceListener::StopListening() { + MutexLock lock(&lock_); + RTC_DCHECK(is_listening_); + RTC_DCHECK(adapters_.empty()); + source_resource_->SetResourceListener(nullptr); + is_listening_ = false; +} + +rtc::scoped_refptr<Resource> +BroadcastResourceListener::CreateAdapterResource() { + MutexLock lock(&lock_); + RTC_DCHECK(is_listening_); + rtc::scoped_refptr<AdapterResource> adapter = + rtc::make_ref_counted<AdapterResource>(source_resource_->Name() + + "Adapter"); + adapters_.push_back(adapter); + return adapter; +} + +void BroadcastResourceListener::RemoveAdapterResource( + rtc::scoped_refptr<Resource> resource) { + MutexLock lock(&lock_); + auto it = std::find(adapters_.begin(), adapters_.end(), resource); + RTC_DCHECK(it != adapters_.end()); + adapters_.erase(it); +} + +std::vector<rtc::scoped_refptr<Resource>> +BroadcastResourceListener::GetAdapterResources() { + std::vector<rtc::scoped_refptr<Resource>> resources; + MutexLock lock(&lock_); + for (const auto& adapter : adapters_) { + resources.push_back(adapter); + } + return resources; +} + +void BroadcastResourceListener::OnResourceUsageStateMeasured( + rtc::scoped_refptr<Resource> resource, + ResourceUsageState usage_state) { + RTC_DCHECK_EQ(resource, source_resource_); + MutexLock lock(&lock_); + for (const auto& adapter : adapters_) { + adapter->OnResourceUsageStateMeasured(usage_state); + } +} + +} // namespace webrtc |