exceptions_handler.h

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#ifndef CPPCOMMON_ERRORS_EXCEPTIONS_HANDLER_H
#define CPPCOMMON_ERRORS_EXCEPTIONS_HANDLER_H
 
#include "filesystem/exceptions.h"
#include "system/stack_trace.h"
#include "utility/singleton.h"
 
#include <cassert>
#include <functional>
#include <memory>
 
namespace CppCommon {
 
 
class ExceptionsHandler : public CppCommon::Singleton<ExceptionsHandler>
{
   friend Singleton<ExceptionsHandler>;
 
public:
    ExceptionsHandler(const ExceptionsHandler&) = delete;
    ExceptionsHandler(ExceptionsHandler&&) = delete;
    ~ExceptionsHandler();
 
    ExceptionsHandler& operator=(const ExceptionsHandler&) = delete;
    ExceptionsHandler& operator=(ExceptionsHandler&&) = delete;
 
 
    static void SetupHandler(const std::function<void (const SystemException&, const StackTrace&)>& handler);
 
    static void SetupProcess();
 
    static void SetupThread();
 
private:
    class Impl;
 
    Impl& impl() noexcept { return reinterpret_cast<Impl&>(_storage); }
    const Impl& impl() const noexcept { return reinterpret_cast<Impl const&>(_storage); }
 
    static const size_t StorageSize = 72;
#if defined(unix) || defined(__unix) || defined(__unix__) || defined(__APPLE__)
    static const size_t StorageAlign = 16;
#else
    static const size_t StorageAlign = 8;
#endif
    alignas(StorageAlign) std::byte _storage[StorageSize];
 
    ExceptionsHandler();
};
 
} // namespace CppCommon
 
#endif // CPPCOMMON_ERRORS_EXCEPTIONS_HANDLER_H