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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/compute_pressure/pressure_client_impl.h"
#include "content/browser/compute_pressure/pressure_service_base.h"
#include "services/device/public/mojom/pressure_update.mojom.h"
#include "third_party/blink/public/mojom/compute_pressure/web_pressure_update.mojom.h"
namespace content {
PressureClientImpl::PressureClientImpl(PressureServiceBase* service)
: service_(service) {}
PressureClientImpl::~PressureClientImpl() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
void PressureClientImpl::OnPressureUpdated(
device::mojom::PressureUpdatePtr update) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (service_->ShouldDeliverUpdate()) {
device::mojom::PressureState state;
switch (update->source) {
case device::mojom::PressureSource::kCpu:
// No update from the virtual pressure source.
if (update->data->own_contribution_estimate ==
device::mojom::kDefaultOwnContributionEstimate) {
update->data->own_contribution_estimate =
service_->CalculateOwnContributionEstimate(
update->data->cpu_utilization);
}
state = service_->CalculateState(update->data->cpu_utilization);
break;
default:
NOTREACHED();
}
client_associated_remote_->OnPressureUpdated(
blink::mojom::WebPressureUpdate::New(
update->source, state, update->data->own_contribution_estimate,
update->timestamp));
}
}
// Disconnection handler for |client_receiver_| and |client_remote_|. If the
// PressureClient connection from //services or to Blink breaks, we should stop
// delivering updates.
void PressureClientImpl::Reset() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
client_associated_receiver_.reset();
client_associated_remote_.reset();
pressure_source_type_ = PressureSourceType::kUnknown;
}
// Set pressure source type from //service.
void PressureClientImpl::SetPressureSourceType(bool is_virtual_source) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (is_virtual_source) {
pressure_source_type_ = PressureSourceType::kVirtual;
} else {
pressure_source_type_ = PressureSourceType::kNonVirtual;
}
}
mojo::PendingAssociatedRemote<device::mojom::PressureClient>
PressureClientImpl::BindNewEndpointAndPassRemote() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
auto pending_associated_remote =
client_associated_receiver_.BindNewEndpointAndPassRemote();
client_associated_receiver_.set_disconnect_handler(
base::BindOnce(&PressureClientImpl::Reset, base::Unretained(this)));
return pending_associated_remote;
}
// Bind PressureClient pendingRemote from Blink.
void PressureClientImpl::BindPendingAssociatedRemote(
mojo::PendingAssociatedRemote<blink::mojom::WebPressureClient>
pending_associated_remote) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
client_associated_remote_.Bind(std::move(pending_associated_remote));
client_associated_remote_.set_disconnect_handler(
base::BindOnce(&PressureClientImpl::Reset, base::Unretained(this)));
}
} // namespace content
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