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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CONTROLLER_MEMORY_USAGE_MONITOR_POSIX_H_
#define THIRD_PARTY_BLINK_RENDERER_CONTROLLER_MEMORY_USAGE_MONITOR_POSIX_H_
#include "base/files/file.h"
#include "base/files/scoped_file.h"
#include "build/build_config.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "third_party/blink/renderer/controller/controller_export.h"
#include "third_party/blink/renderer/controller/memory_usage_monitor.h"
#if defined(OS_LINUX)
#include "third_party/blink/public/mojom/memory_usage_monitor_linux.mojom-blink.h"
#endif
namespace blink {
// MemoryUsageMonitor implementation for Android and Linux.
class CONTROLLER_EXPORT MemoryUsageMonitorPosix
: public MemoryUsageMonitor
#if defined(OS_LINUX)
,
public mojom::blink::MemoryUsageMonitorLinux
#endif
{
public:
MemoryUsageMonitorPosix() = default;
#if defined(OS_LINUX)
static void Bind(
mojo::PendingReceiver<mojom::blink::MemoryUsageMonitorLinux> receiver);
#endif
private:
FRIEND_TEST_ALL_PREFIXES(MemoryUsageMonitorPosixTest,
CalculateProcessFootprint);
friend class CrashMemoryMetricsReporterImpl;
void GetProcessMemoryUsage(MemoryUsage&) override;
static bool CalculateProcessMemoryFootprint(int statm_fd,
int status_fd,
uint64_t* private_footprint,
uint64_t* swap_footprint,
uint64_t* vm_size,
uint64_t* vm_hwm_size);
#if defined(OS_LINUX)
// mojom::MemoryUsageMonitorLinux implementations:
void SetProcFiles(base::File statm_file, base::File status_file) override;
#endif
#if defined(OS_ANDROID)
void ResetFileDescriptors();
// For Android, SetProcFiles is used only for testing.
void SetProcFiles(base::File statm_file, base::File status_file);
bool file_descriptors_reset_ = false;
#endif
// The file descriptor to current process proc files. The files are kept open
// for the whole lifetime of the renderer.
base::ScopedFD statm_fd_;
base::ScopedFD status_fd_;
#if defined(OS_LINUX)
mojo::Receiver<mojom::blink::MemoryUsageMonitorLinux> receiver_{this};
#endif
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CONTROLLER_MEMORY_USAGE_MONITOR_POSIX_H_
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