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// Copyright 2020 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.
#include "third_party/blink/renderer/platform/instrumentation/canvas_memory_dump_provider.h"
#include "base/trace_event/memory_dump_manager.h"
#include "base/trace_event/process_memory_dump.h"
#include "third_party/blink/renderer/platform/instrumentation/instance_counters.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
namespace blink {
CanvasMemoryDumpProvider* CanvasMemoryDumpProvider::Instance() {
DEFINE_STATIC_LOCAL(CanvasMemoryDumpProvider, instance, ());
return &instance;
}
bool CanvasMemoryDumpProvider::OnMemoryDump(
const base::trace_event::MemoryDumpArgs& args,
base::trace_event::ProcessMemoryDump* memory_dump) {
if (args.level_of_detail ==
base::trace_event::MemoryDumpLevelOfDetail::DETAILED) {
base::AutoLock auto_lock(lock_);
for (auto* it : clients_)
it->OnMemoryDump(memory_dump);
return true;
}
size_t total_size = 0;
size_t clients_size = 0;
{
base::AutoLock auto_lock(lock_);
for (auto* it : clients_)
total_size += it->GetSize();
clients_size = clients_.size();
}
auto* dump =
memory_dump->CreateAllocatorDump("canvas/ResourceProvider/SkSurface");
dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
base::trace_event::MemoryAllocatorDump::kUnitsBytes,
total_size);
dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameObjectCount,
base::trace_event::MemoryAllocatorDump::kUnitsObjects,
clients_size);
// SkiaMemoryDumpProvider reports only sk_glyph_cache and sk_resource_cache.
// So the SkSurface is suballocation of malloc, not SkiaDumpProvider.
if (const char* system_allocator_name =
base::trace_event::MemoryDumpManager::GetInstance()
->system_allocator_pool_name()) {
memory_dump->AddSuballocation(dump->guid(), system_allocator_name);
}
return true;
}
void CanvasMemoryDumpProvider::RegisterClient(CanvasMemoryDumpClient* client) {
base::AutoLock auto_lock(lock_);
clients_.insert(client);
}
void CanvasMemoryDumpProvider::UnregisterClient(
CanvasMemoryDumpClient* client) {
base::AutoLock auto_lock(lock_);
DCHECK(clients_.Contains(client));
clients_.erase(client);
}
} // namespace blink
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