VirgilSystemCryptoError.h

#ifndef VIRGIL_SYSTEM_CRYPTO_ERROR_H
#define VIRGIL_SYSTEM_CRYPTO_ERROR_H

#include <system_error>

#include "../VirgilCryptoError.h"

namespace virgil { namespace crypto { namespace foundation {

class VirgilSystemCryptoErrorCategory : public std::error_category {
public:
    const char* name() const noexcept override;

    std::string message(int ev) const noexcept override;
};

const VirgilSystemCryptoErrorCategory& system_crypto_category() noexcept;

inline int system_crypto_handler_get_result(int result) {
    if (result >= 0) { return result; }
    throw VirgilCryptoException(result, system_crypto_category());
}

inline void system_crypto_handler(int result) {
    (void) system_crypto_handler_get_result(result);
}

template<typename CatchHandler>
inline int system_crypto_handler_get_result(int result, CatchHandler catch_handler) {
    if (result >= 0) { return result; }
    try {
        throw VirgilCryptoException(result, system_crypto_category());
    } catch (...) {
        catch_handler(result);
        return 0;
    }
}

template<typename CatchHandler>
inline void system_crypto_handler(int result, CatchHandler catch_handler) {
    (void) system_crypto_handler_get_result<CatchHandler>(result, catch_handler);
}

}}}

#endif //VIRGIL_SYSTEM_CRYPTO_ERROR_H