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construct/include/ircd/fs/error.h

73 lines
1.9 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_FS_ERROR_H
// Forward declarations for boost
namespace boost::filesystem
{
struct filesystem_error;
}
namespace ircd::fs
{
struct error; // does not participate in ircd::exception hierarchy
}
namespace ircd
{
std::error_code make_error_code(const boost::filesystem::filesystem_error &);
std::system_error make_system_error(const boost::filesystem::filesystem_error &);
string_view string(const mutable_buffer &, const boost::filesystem::filesystem_error &);
std::string string(const boost::filesystem::filesystem_error &);
}
struct ircd::fs::error
:std::system_error
{
static thread_local char buf[1024];
public:
template<class... args>
error(const boost::filesystem::filesystem_error &e,
const string_view &fmt,
args&&...);
template<class... args>
error(const std::error_code &e,
const string_view &fmt,
args&&...);
error(const boost::filesystem::filesystem_error &e);
};
template<class... args>
ircd::fs::error::error(const boost::filesystem::filesystem_error &e,
const string_view &fmt,
args&&... a)
:error
{
make_error_code(e), fmt, std::forward<args>(a)...
}
{}
template<class... args>
ircd::fs::error::error(const std::error_code &e,
const string_view &fmt,
args&&... a)
:std::system_error{[&]
() -> std::system_error
{
fmt::sprintf{buf, fmt, std::forward<args>(a)...};
return {e, buf};
}()}
{}