242 lines
7.4 KiB
Plaintext
242 lines
7.4 KiB
Plaintext
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/interprocess for documentation.
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//
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// Parts of this code are taken from boost::filesystem library
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//
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//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2002 Beman Dawes
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// Copyright (C) 2001 Dietmar Kuehl
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy
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// at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See library home page at http://www.boost.org/libs/filesystem
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_INTERPROCESS_ERRORS_HPP
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#define BOOST_INTERPROCESS_ERRORS_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/interprocess/detail/config_begin.hpp>
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#include <boost/interprocess/detail/workaround.hpp>
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#include <stdarg.h>
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#include <string>
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#if defined (BOOST_INTERPROCESS_WINDOWS)
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# include <boost/interprocess/detail/win32_api.hpp>
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#else
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# ifdef BOOST_HAS_UNISTD_H
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# include <errno.h> //Errors
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# include <cstring> //strerror
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# else //ifdef BOOST_HAS_UNISTD_H
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# error Unknown platform
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# endif //ifdef BOOST_HAS_UNISTD_H
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#endif //#if defined (BOOST_INTERPROCESS_WINDOWS)
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//!\file
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//!Describes the error numbering of interprocess classes
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namespace boost {
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namespace interprocess {
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#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
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inline int system_error_code() // artifact of POSIX and WINDOWS error reporting
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{
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#if defined (BOOST_INTERPROCESS_WINDOWS)
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return winapi::get_last_error();
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#else
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return errno; // GCC 3.1 won't accept ::errno
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#endif
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}
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#if defined (BOOST_INTERPROCESS_WINDOWS)
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inline void fill_system_message(int sys_err_code, std::string &str)
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{
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void *lpMsgBuf;
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winapi::format_message(
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winapi::format_message_allocate_buffer |
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winapi::format_message_from_system |
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winapi::format_message_ignore_inserts,
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0,
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sys_err_code,
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winapi::make_lang_id(winapi::lang_neutral, winapi::sublang_default), // Default language
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reinterpret_cast<char *>(&lpMsgBuf),
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0,
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0
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);
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str += static_cast<const char*>(lpMsgBuf);
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winapi::local_free( lpMsgBuf ); // free the buffer
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while ( str.size()
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&& (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') )
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str.erase( str.size()-1 );
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}
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# else
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inline void fill_system_message( int system_error, std::string &str)
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{ str = std::strerror(system_error); }
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# endif
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#endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
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enum error_code_t
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{
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no_error = 0,
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system_error, // system generated error; if possible, is translated
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// to one of the more specific errors below.
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other_error, // library generated error
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security_error, // includes access rights, permissions failures
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read_only_error,
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io_error,
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path_error,
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not_found_error,
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// not_directory_error,
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busy_error, // implies trying again might succeed
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already_exists_error,
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not_empty_error,
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is_directory_error,
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out_of_space_error,
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out_of_memory_error,
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out_of_resource_error,
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lock_error,
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sem_error,
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mode_error,
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size_error,
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corrupted_error,
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not_such_file_or_directory,
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invalid_argument,
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timeout_when_locking_error,
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timeout_when_waiting_error,
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owner_dead_error
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};
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typedef int native_error_t;
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#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
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struct ec_xlate
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{
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native_error_t sys_ec;
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error_code_t ec;
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};
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static const ec_xlate ec_table[] =
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{
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#if defined (BOOST_INTERPROCESS_WINDOWS)
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{ /*ERROR_ACCESS_DENIED*/5L, security_error },
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{ /*ERROR_INVALID_ACCESS*/12L, security_error },
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{ /*ERROR_SHARING_VIOLATION*/32L, security_error },
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{ /*ERROR_LOCK_VIOLATION*/33L, security_error },
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{ /*ERROR_LOCKED*/212L, security_error },
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{ /*ERROR_NOACCESS*/998L, security_error },
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{ /*ERROR_WRITE_PROTECT*/19L, read_only_error },
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{ /*ERROR_NOT_READY*/21L, io_error },
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{ /*ERROR_SEEK*/25L, io_error },
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{ /*ERROR_READ_FAULT*/30L, io_error },
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{ /*ERROR_WRITE_FAULT*/29L, io_error },
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{ /*ERROR_CANTOPEN*/1011L, io_error },
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{ /*ERROR_CANTREAD*/1012L, io_error },
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{ /*ERROR_CANTWRITE*/1013L, io_error },
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{ /*ERROR_DIRECTORY*/267L, path_error },
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{ /*ERROR_INVALID_NAME*/123L, path_error },
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{ /*ERROR_FILE_NOT_FOUND*/2L, not_found_error },
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{ /*ERROR_PATH_NOT_FOUND*/3L, not_found_error },
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{ /*ERROR_DEV_NOT_EXIST*/55L, not_found_error },
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{ /*ERROR_DEVICE_IN_USE*/2404L, busy_error },
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{ /*ERROR_OPEN_FILES*/2401L, busy_error },
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{ /*ERROR_BUSY_DRIVE*/142L, busy_error },
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{ /*ERROR_BUSY*/170L, busy_error },
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{ /*ERROR_FILE_EXISTS*/80L, already_exists_error },
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{ /*ERROR_ALREADY_EXISTS*/183L, already_exists_error },
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{ /*ERROR_DIR_NOT_EMPTY*/145L, not_empty_error },
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{ /*ERROR_HANDLE_DISK_FULL*/39L, out_of_space_error },
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{ /*ERROR_DISK_FULL*/112L, out_of_space_error },
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{ /*ERROR_OUTOFMEMORY*/14L, out_of_memory_error },
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{ /*ERROR_NOT_ENOUGH_MEMORY*/8L, out_of_memory_error },
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{ /*ERROR_TOO_MANY_OPEN_FILES*/4L, out_of_resource_error },
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{ /*ERROR_INVALID_ADDRESS*/487L, busy_error }
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#else //#if defined (BOOST_INTERPROCESS_WINDOWS)
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{ EACCES, security_error },
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{ EROFS, read_only_error },
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{ EIO, io_error },
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{ ENAMETOOLONG, path_error },
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{ ENOENT, not_found_error },
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// { ENOTDIR, not_directory_error },
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{ EAGAIN, busy_error },
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{ EBUSY, busy_error },
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{ ETXTBSY, busy_error },
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{ EEXIST, already_exists_error },
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{ ENOTEMPTY, not_empty_error },
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{ EISDIR, is_directory_error },
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{ ENOSPC, out_of_space_error },
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{ ENOMEM, out_of_memory_error },
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{ EMFILE, out_of_resource_error },
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{ ENOENT, not_such_file_or_directory },
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{ EINVAL, invalid_argument }
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#endif //#if defined (BOOST_INTERPROCESS_WINDOWS)
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};
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inline error_code_t lookup_error(native_error_t err)
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{
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const ec_xlate *cur = &ec_table[0],
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*end = cur + sizeof(ec_table)/sizeof(ec_xlate);
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for (;cur != end; ++cur ){
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if ( err == cur->sys_ec ) return cur->ec;
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}
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return system_error; // general system error code
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}
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struct error_info
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{
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error_info(error_code_t ec = other_error )
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: m_nat(0), m_ec(ec)
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{}
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error_info(native_error_t sys_err_code)
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: m_nat(sys_err_code), m_ec(lookup_error(sys_err_code))
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{}
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error_info & operator =(error_code_t ec)
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{
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m_nat = 0;
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m_ec = ec;
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return *this;
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}
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error_info & operator =(native_error_t sys_err_code)
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{
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m_nat = sys_err_code;
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m_ec = lookup_error(sys_err_code);
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return *this;
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}
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native_error_t get_native_error()const
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{ return m_nat; }
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error_code_t get_error_code()const
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{ return m_ec; }
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private:
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native_error_t m_nat;
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error_code_t m_ec;
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};
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#endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
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} // namespace interprocess {
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} // namespace boost
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#include <boost/interprocess/detail/config_end.hpp>
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#endif // BOOST_INTERPROCESS_ERRORS_HPP
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