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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/memory/chrome_browser_main_extra_parts_memory.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/memory_pressure_monitor.h"
#include "build/build_config.h"
#include "components/heap_profiling/in_process/browser_process_snapshot_controller.h"
#include "components/heap_profiling/in_process/mojom/snapshot_controller.mojom.h"
#include "content/public/browser/browser_child_process_host.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/child_process_host.h"
#include "content/public/browser/render_process_host.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "base/logging.h"
#include "base/system/sys_info.h"
#include "chromeos/ash/components/memory/pressure/system_memory_pressure_evaluator.h"
#endif
namespace {
// A shim to connect HeapProfilerController, which can't depend on content/, to
// ChildProcessHost.
void BindHeapSnapshotControllerToProcessHost(
int child_process_id,
mojo::PendingReceiver<heap_profiling::mojom::SnapshotController> receiver) {
// `child_process_id` could refer to a BrowserChildProcessHost or
// RenderProcessHost.
if (auto* bcph = content::BrowserChildProcessHost::FromID(child_process_id)) {
bcph->GetHost()->BindReceiver(std::move(receiver));
} else if (auto* rph = content::RenderProcessHost::FromID(child_process_id)) {
if (!rph->GetBrowserContext()->IsOffTheRecord()) {
rph->BindReceiver(std::move(receiver));
}
}
}
} // namespace
ChromeBrowserMainExtraPartsMemory::ChromeBrowserMainExtraPartsMemory() = default;
ChromeBrowserMainExtraPartsMemory::~ChromeBrowserMainExtraPartsMemory() =
default;
void ChromeBrowserMainExtraPartsMemory::PostCreateThreads() {
// BrowserProcessSnapshotController may be null if heap profiling isn't
// enabled in this session, or if the kHeapProfilerCentralControl feature is
// disabled.
if (auto* snapshot_controller =
heap_profiling::BrowserProcessSnapshotController::GetInstance()) {
snapshot_controller->SetBindRemoteForChildProcessCallback(
base::BindRepeating(&BindHeapSnapshotControllerToProcessHost));
}
}
void ChromeBrowserMainExtraPartsMemory::PostBrowserStart() {
// The MemoryPressureMonitor might not be available in some tests.
if (base::MemoryPressureMonitor::Get()) {
#if BUILDFLAG(IS_CHROMEOS)
if (base::SysInfo::IsRunningOnChromeOS()) {
cros_evaluator_ =
std::make_unique<ash::memory::SystemMemoryPressureEvaluator>(
static_cast<memory_pressure::MultiSourceMemoryPressureMonitor*>(
base::MemoryPressureMonitor::Get())
->CreateVoter());
}
#endif
}
}
void ChromeBrowserMainExtraPartsMemory::PostMainMessageLoopRun() {
#if BUILDFLAG(IS_CHROMEOS)
cros_evaluator_.reset();
#endif
}
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