system-error.cpp

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/*
 * This file is part of the µOS++ project (https://micro-os-plus.github.io/).
 * Copyright (c) 2016-2025 Liviu Ionescu. All rights reserved.
 *
 * Permission to use, copy, modify, and/or distribute this software
 * for any purpose is hereby granted, under the terms of the MIT license.
 *
 * If a copy of the license was not distributed with this file, it can
 * be obtained from https://opensource.org/licenses/mit.
 */
 
#include <cmsis-plus/rtos/os.h>
 
#if defined(__EXCEPTIONS)
#include <string>
#include <system_error>
#endif
 
// ----------------------------------------------------------------------------
 
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wc++98-compat"
#pragma clang diagnostic ignored "-Wc++98-compat-bind-to-temporary-copy"
#endif
 
// ----------------------------------------------------------------------------
 
using namespace os;
 
// ----------------------------------------------------------------------------
 
namespace os
{
  namespace estd
  {
    // ========================================================================
 
#if defined(__EXCEPTIONS)
 
    struct system_error_category : public std::error_category
    {
      virtual const char*
      name () const noexcept override;
 
      virtual std::string
      message (int i) const override;
    };
 
    const char*
    system_error_category::name () const noexcept
    {
      return "system";
    }
 
#pragma GCC diagnostic push
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wunused-parameter"
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
 
    std::string
    system_error_category::message (int i) const
    {
#if defined(DEBUG)
      return std::string (strerror (i));
#else
      return std::string ("");
#endif
    }
 
    struct cmsis_error_category : public std::error_category
    {
      virtual const char*
      name () const noexcept override;
 
      virtual std::string
      message (int i) const override;
    };
 
    const char*
    cmsis_error_category::name () const noexcept
    {
      return "cmsis";
    }
 
#pragma GCC diagnostic push
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wunused-parameter"
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
 
    std::string
    cmsis_error_category::message (int i) const
    {
#if defined(DEBUG)
      return std::string (strerror (i));
#else
      return std::string ("");
#endif
    }
 
#pragma GCC diagnostic pop
 
#endif
 
    void
    __throw_system_error (int ev, const char* what_arg)
    {
#if defined(__EXCEPTIONS)
      // error: copying parameter of type 'os::estd::system_error_category'
      // when binding a reference to a temporary would invoke a deleted
      // constructor in C++98 [-Werror,-Wc++98-compat-bind-to-temporary-copy]
      throw std::system_error (std::error_code (ev, system_error_category ()),
                               what_arg);
#else
      trace_printf ("system_error(%d, %s)\n", ev, what_arg);
      std::abort ();
#endif
    }
 
    void
    __throw_cmsis_error (int ev, const char* what_arg)
    {
#if defined(__EXCEPTIONS)
      // error: copying parameter of type 'os::estd::cmsis_error_category' when
      // binding a reference to a temporary would invoke a deleted constructor
      // in C++98 [-Werror,-Wc++98-compat-bind-to-temporary-copy]
      throw std::system_error (std::error_code (ev, cmsis_error_category ()),
                               what_arg);
#else
      trace_printf ("system_error(%d, %s)\n", ev, what_arg);
      std::abort ();
#endif
    }
 
    // ------------------------------------------------------------------------
 
  } /* namespace estd */
} /* namespace os */
 
// ----------------------------------------------------------------------------