51becbde
 Peter M. Groen
Committed the ent...
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#ifndef OSDEV_COMPONENTS_MQTT_SCOPEGUARD_H
#define OSDEV_COMPONENTS_MQTT_SCOPEGUARD_H
// std
#include <functional>
#include "macrodefs.h"
#include "utils.h"
#define OSDEV_COMPONENTS_SCOPEGUARD(variableName, ...) \
osdev::components::mqtt::ScopeGuard OSDEV_COMPONENTS_COMBINE(Scope__Guard__##variableName##__, __LINE__)(__VA_ARGS__); \
osdev::components::mqtt::apply_unused_parameters(OSDEV_COMPONENTS_COMBINE(Scope__Guard__##variableName##__, __LINE__));
namespace osdev {
namespace components {
namespace mqtt {
using CleanUpFunction = std::function<void() noexcept>;
/**
* @brief Ensures that a cleanup function is called at the end of the current scope.
*/
class ScopeGuard
{
public:
/**
* @brief Constructs an empty scopeguard.
* The scopeguard can be set by moving another ScopeGuard into this one.
*/
ScopeGuard();
/**
* @brief Constructs a RAII instance that will call cleanupFunc in it's destructor.
* @param cleanupFunc The cleanup function to call at the end of the current scope.
* This cleanup function must not throw exceptions. If it does, the behavior is undefined.
*/
ScopeGuard(const CleanUpFunction& cleanupFunc);
// Movable, not copyable
ScopeGuard(const ScopeGuard&) = delete;
ScopeGuard& operator=(const ScopeGuard&) = delete;
ScopeGuard(ScopeGuard&&) = default;
ScopeGuard& operator=(ScopeGuard&&) = default;
~ScopeGuard() noexcept;
private:
CleanUpFunction m_cleanupFunc;
};
} // End namespace mqtt
} // End namespace components
} // End namespace osdev
#endif // OSDEV_COMPONENTS_MQTT_SCOPEGUARD_H
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