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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "idestructorcallback.h"
namespace vespalib {
class Gate;
class GateCallback : public IDestructorCallback {
public:
explicit GateCallback(vespalib::Gate & gate) noexcept : _gate(gate) {}
~GateCallback() override;
private:
vespalib::Gate & _gate;
};
class IgnoreCallback : public IDestructorCallback {
public:
IgnoreCallback() noexcept { }
~IgnoreCallback() override = default;
};
template <typename T>
struct KeepAlive : public IDestructorCallback {
explicit KeepAlive(T toKeep) noexcept : _toKeep(std::move(toKeep)) { }
~KeepAlive() override = default;
T _toKeep;
};
template<class FunctionType>
class LambdaCallback : public IDestructorCallback {
public:
explicit LambdaCallback(FunctionType &&func) noexcept
: _func(std::move(func))
{}
~LambdaCallback() {
_func();
}
private:
FunctionType _func;
};
template<class FunctionType>
std::shared_ptr<IDestructorCallback>
makeSharedLambdaCallback(FunctionType &&function) {
return std::make_shared<LambdaCallback<std::decay_t<FunctionType>>>
(std::forward<FunctionType>(function));
}
template<class FunctionType>
std::unique_ptr<IDestructorCallback>
makeUniqueLambdaCallback(FunctionType &&function) {
return std::make_unique<LambdaCallback<std::decay_t<FunctionType>>>
(std::forward<FunctionType>(function));
}
}
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