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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <jsapi.h>
#include "mongo/platform/mutex.h"
#include "mongo/scripting/deadline_monitor.h"
#include "mongo/scripting/engine.h"
#include "mongo/stdx/unordered_map.h"
#include "mongo/util/concurrency/mutex.h"
namespace mongo {
namespace mozjs {
class MozJSImplScope;
/**
* Implements the global ScriptEngine interface for MozJS. The associated TU
* pulls this in for the polymorphic globalScriptEngine.
*/
class MozJSScriptEngine final : public mongo::ScriptEngine {
public:
MozJSScriptEngine(bool disableLoadStored);
~MozJSScriptEngine() override;
mongo::Scope* createScope() override;
mongo::Scope* createScopeForCurrentThread(boost::optional<int> jsHeapLimitMB) override;
void runTest() override {}
bool utf8Ok() const override {
return true;
}
void interrupt(unsigned opId) override;
void interruptAll() override;
void enableJIT(bool value) override;
bool isJITEnabled() const override;
void enableJavaScriptProtection(bool value) override;
bool isJavaScriptProtectionEnabled() const override;
int getJSHeapLimitMB() const override;
void setJSHeapLimitMB(int limit) override;
std::string getLoadPath() const override;
void setLoadPath(const std::string& loadPath) override;
void registerOperation(OperationContext* ctx, MozJSImplScope* scope);
void unregisterOperation(unsigned int opId);
using ScopeCallback = void (*)(Scope&);
ScopeCallback getScopeInitCallback() {
return _scopeInitCallback;
};
DeadlineMonitor<MozJSImplScope>& getDeadlineMonitor() {
return _deadlineMonitor;
}
private:
/**
* This mutex protects _opToScopeMap
*/
Mutex _globalInterruptLock = MONGO_MAKE_LATCH("MozJSScriptEngine::_globalInterruptLock");
using OpIdToScopeMap = stdx::unordered_map<unsigned, MozJSImplScope*>;
OpIdToScopeMap _opToScopeMap; // map of mongo op ids to scopes (protected by
// _globalInterruptLock).
DeadlineMonitor<MozJSImplScope> _deadlineMonitor;
std::string _loadPath;
};
} // namespace mozjs
} // namespace mongo
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