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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sql/sql_memory_dump_provider.h"
#include <cstdint>
#include "base/check_op.h"
#include "base/memory/singleton.h"
#include "base/trace_event/memory_allocator_dump.h"
#include "base/trace_event/memory_dump_manager.h"
#include "base/trace_event/memory_dump_request_args.h"
#include "base/trace_event/process_memory_dump.h"
#include "sql/sqlite_result_code.h"
#include "sql/sqlite_result_code_values.h"
#include "third_party/sqlite/sqlite3.h"
namespace sql {
// static
SqlMemoryDumpProvider* SqlMemoryDumpProvider::GetInstance() {
return base::Singleton<
SqlMemoryDumpProvider,
base::LeakySingletonTraits<SqlMemoryDumpProvider>>::get();
}
// static
int64_t SqlMemoryDumpProvider::GetMemoryUse(int64_t* high_water) {
sqlite3_int64 memory_used = 0;
sqlite3_int64 memory_high_water = 0;
auto result_code = ToSqliteResultCode(sqlite3_status64(
SQLITE_STATUS_MEMORY_USED, &memory_used, &memory_high_water,
/*resetFlag=*/high_water ? 1 : 0));
DCHECK_EQ(result_code, SqliteResultCode::kOk)
<< "sqlite3_status64(STATUS_MEMORY_USED) failed";
if (high_water) {
*high_water = memory_high_water;
}
return memory_used;
}
SqlMemoryDumpProvider::SqlMemoryDumpProvider() = default;
SqlMemoryDumpProvider::~SqlMemoryDumpProvider() = default;
bool SqlMemoryDumpProvider::OnMemoryDump(
const base::trace_event::MemoryDumpArgs& args,
base::trace_event::ProcessMemoryDump* pmd) {
int64_t memory_high_water = 0;
int64_t memory_used = GetMemoryUse(&memory_high_water);
base::trace_event::MemoryAllocatorDump* dump =
pmd->CreateAllocatorDump("sqlite");
dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
base::trace_event::MemoryAllocatorDump::kUnitsBytes,
memory_used);
dump->AddScalar("malloc_high_wmark_size",
base::trace_event::MemoryAllocatorDump::kUnitsBytes,
memory_high_water);
sqlite3_int64 dummy_high_water = -1;
sqlite3_int64 malloc_count = -1;
auto sqlite_result_code = ToSqliteResultCode(sqlite3_status64(
SQLITE_STATUS_MALLOC_COUNT, &malloc_count, &dummy_high_water,
/*resetFlag=*/0));
DCHECK_EQ(sqlite_result_code, SqliteResultCode::kOk)
<< "sqlite3_status64(SQLITE_STATUS_MALLOC_COUNT) failed";
dump->AddScalar("malloc_count",
base::trace_event::MemoryAllocatorDump::kUnitsObjects,
malloc_count);
const char* system_allocator_name =
base::trace_event::MemoryDumpManager::GetInstance()
->system_allocator_pool_name();
if (system_allocator_name) {
pmd->AddSuballocation(dump->guid(), system_allocator_name);
}
return true;
}
} // namespace sql
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