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/*
* Copyright (C) 2012-2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "JSCJSValue.h"
#include "ProfilerBytecodes.h"
#include "ProfilerCompilation.h"
#include "ProfilerEvent.h"
#include <wtf/HashMap.h>
#include <wtf/JSONValues.h>
#include <wtf/Lock.h>
#include <wtf/Noncopyable.h>
#include <wtf/SegmentedVector.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/text/WTFString.h>
namespace JSC { namespace Profiler {
struct DatabaseIDType;
using DatabaseID = AtomicObjectIdentifier<DatabaseIDType>;
class Database {
WTF_MAKE_TZONE_ALLOCATED(Database);
WTF_MAKE_NONCOPYABLE(Database);
public:
JS_EXPORT_PRIVATE Database(VM&);
JS_EXPORT_PRIVATE ~Database();
DatabaseID databaseID() const { return m_databaseID; }
Bytecodes* ensureBytecodesFor(CodeBlock*);
void notifyDestruction(CodeBlock*);
void addCompilation(CodeBlock*, Ref<Compilation>&&);
// Converts the database to a JSON object that is suitable for JSON stringification.
JS_EXPORT_PRIVATE Ref<JSON::Value> toJSON() const;
// Saves the JSON representation (from toJSON()) to the given file. Returns false if the
// save failed.
JS_EXPORT_PRIVATE bool save(const char* filename) const;
void registerToSaveAtExit(const char* filename);
JS_EXPORT_PRIVATE void logEvent(CodeBlock* codeBlock, const char* summary, const CString& detail);
private:
Bytecodes* ensureBytecodesFor(const AbstractLocker&, CodeBlock*);
void addDatabaseToAtExit();
void removeDatabaseFromAtExit();
void performAtExitSave() const;
static Database* removeFirstAtExitDatabase();
static void atExitCallback();
DatabaseID m_databaseID;
VM& m_vm;
SegmentedVector<Bytecodes> m_bytecodes;
UncheckedKeyHashMap<CodeBlock*, Bytecodes*> m_bytecodesMap;
Vector<Ref<Compilation>> m_compilations;
UncheckedKeyHashMap<CodeBlock*, Ref<Compilation>> m_compilationMap;
Vector<Event> m_events;
bool m_shouldSaveAtExit;
CString m_atExitSaveFilename;
Database* m_nextRegisteredDatabase;
Lock m_lock;
};
} } // namespace JSC::Profiler
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