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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. 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 __NNFW_XRAY_MUX_H__
#define __NNFW_XRAY_MUX_H__
#include <xray/event.h>
#include <set>
namespace xray
{
struct listener
{
virtual ~listener() = default;
virtual void notify(const event *) = 0;
};
class mux
{
private:
// Use "get()" below
mux() = default;
public:
void attach(listener *l) { _listeners.insert(l); }
void detach(listener *l) { _listeners.erase(l); }
public:
void notify(const event *e) const
{
for (auto listener : _listeners)
{
listener->notify(e);
}
}
private:
std::set<listener *> _listeners;
public:
static mux &get(void);
};
} // namespace xray
#endif // __NNFW_XRAY_MUX_H__
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