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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SYZYGY_KASKO_DLL_LIFETIME_H_
#define SYZYGY_KASKO_DLL_LIFETIME_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
namespace kasko {
// Sets up and tears down global Kasko DLL state. Multiple instances may safely
// exist simultaneously. Global state is set up when the first instance is
// constructed and torn down when the last instance is destroyed. Construction
// and destruction is not thread-safe.
class DllLifetime {
public:
DllLifetime();
~DllLifetime();
private:
// Holds global Kasko DLL state. Only a single Core instance will exist at any
// time.
class Core;
// A refcount to prevent the global Core instance from being destroyed while
// this DllLifetime is alive.
scoped_refptr<Core> core_;
DISALLOW_COPY_AND_ASSIGN(DllLifetime);
};
} // namespace kasko
#endif // SYZYGY_KASKO_DLL_LIFETIME_H_