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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_SERVICE_MEMORY_TRACKING_H_
#define GPU_COMMAND_BUFFER_SERVICE_MEMORY_TRACKING_H_
#include <stdint.h>
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/synchronization/lock.h"
#include "gpu/command_buffer/common/command_buffer_id.h"
#include "gpu/command_buffer/service/gpu_command_buffer_service_export.h"
#include "gpu/ipc/common/gpu_peak_memory.h"
namespace gpu {
class MockMemoryTracker;
// A MemoryTracker is used to propagate per-ContextGroup memory usage
// statistics to the global GpuMemoryManager.
// MemoryTracker is thread safe.
class GPU_COMMAND_BUFFER_SERVICE_EXPORT MemoryTracker
: public base::RefCountedThreadSafe<MemoryTracker> {
public:
// Observe all changes in memory notified to this MemoryTracker.
// Used by GpuChannelManager::GpuPeakMemoryMonitor only.
class Observer : public base::RefCountedThreadSafe<Observer> {
public:
Observer() = default;
Observer(const Observer&) = delete;
Observer& operator=(const Observer&) = delete;
virtual void OnMemoryAllocatedChange(
CommandBufferId id,
uint64_t old_size,
uint64_t new_size,
GpuPeakMemoryAllocationSource source) = 0;
protected:
friend class base::RefCountedThreadSafe<Observer>;
virtual ~Observer() = default;
};
MemoryTracker(CommandBufferId command_buffer_id,
uint64_t client_tracing_id,
scoped_refptr<gpu::MemoryTracker::Observer> peak_memory_monitor,
GpuPeakMemoryAllocationSource source);
// For testing only.
MemoryTracker();
virtual void TrackMemoryAllocatedChange(int64_t delta);
virtual uint64_t GetSize() const;
// Raw ID identifying the GPU client for whom memory is being allocated.
virtual int ClientId() const;
// Tracing id which identifies the GPU client for whom memory is being
// allocated.
virtual uint64_t ClientTracingId() const;
// Returns an ID that uniquely identifies the context group.
virtual uint64_t ContextGroupTracingId() const;
protected:
friend class base::RefCountedThreadSafe<MemoryTracker>;
friend class MemoryTypeTracker;
friend class MockMemoryTracker;
virtual ~MemoryTracker();
private:
const CommandBufferId command_buffer_id_;
const uint64_t client_tracing_id_;
const scoped_refptr<gpu::MemoryTracker::Observer> peak_memory_monitor_;
const GpuPeakMemoryAllocationSource allocation_source_;
uint64_t mem_traker_size_ GUARDED_BY(memory_tracker_lock_) = 0;
mutable base::Lock memory_tracker_lock_;
};
// A MemoryTypeTracker tracks the use of a particular type of memory (buffer,
// texture, or renderbuffer) and forward the result to a specified
// MemoryTracker. MemoryTypeTracker is thread-safe, but it must not outlive the
// MemoryTracker which will be notified on the sequence the MemoryTypeTracker
// was created on.
class GPU_COMMAND_BUFFER_SERVICE_EXPORT MemoryTypeTracker {
public:
explicit MemoryTypeTracker(scoped_refptr<MemoryTracker> memory_tracker);
MemoryTypeTracker(const MemoryTypeTracker&) = delete;
MemoryTypeTracker& operator=(const MemoryTypeTracker&) = delete;
~MemoryTypeTracker();
const MemoryTracker* memory_tracker() const { return memory_tracker_.get(); }
void TrackMemAlloc(size_t bytes);
void TrackMemFree(size_t bytes);
size_t GetMemRepresented() const;
private:
const scoped_refptr<MemoryTracker> memory_tracker_;
size_t mem_represented_ GUARDED_BY(lock_) = 0;
mutable base::Lock lock_;
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_MEMORY_TRACKING_H_
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