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content / browser / compute_pressure / pressure_client_impl.cc [blame]
// 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"
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()) {
client_remote_->OnPressureUpdated(std::move(update));
}
}
// 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_receiver_.reset();
client_remote_.reset();
}
mojo::PendingReceiver<device::mojom::PressureClient>
PressureClientImpl::BindNewPipeAndPassReceiver() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
auto pending_receiver = client_remote_.BindNewPipeAndPassReceiver();
// base::Unretained is safe because Mojo guarantees the callback will not
// be called after `client_remote_` is deallocated, and `client_remote_`
// is owned by this class.
client_remote_.set_disconnect_handler(
base::BindRepeating(&PressureClientImpl::Reset, base::Unretained(this)));
return pending_receiver;
}
void PressureClientImpl::BindReceiver(
mojo::PendingReceiver<device::mojom::PressureClient> pending_receiver) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
client_receiver_.Bind(std::move(pending_receiver));
client_receiver_.set_disconnect_handler(
base::BindOnce(&PressureClientImpl::Reset, base::Unretained(this)));
}
} // namespace content