Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying file
Chris@16: // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/interprocess for documentation.
Chris@16: //
Chris@16: // Parts of this code are taken from boost::filesystem library
Chris@16: //
Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: //  Copyright (C) 2002 Beman Dawes
Chris@16: //  Copyright (C) 2001 Dietmar Kuehl
Chris@16: //  Use, modification, and distribution is subject to the Boost Software
Chris@16: //  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy
Chris@16: //  at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: //  See library home page at http://www.boost.org/libs/filesystem
Chris@16: //
Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: 
Chris@16: #ifndef BOOST_INTERPROCESS_ERRORS_HPP
Chris@16: #define BOOST_INTERPROCESS_ERRORS_HPP
Chris@16: 
Chris@101: #ifndef BOOST_CONFIG_HPP
Chris@101: #  include <boost/config.hpp>
Chris@101: #endif
Chris@101: #
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@16: #  pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_begin.hpp>
Chris@16: #include <boost/interprocess/detail/workaround.hpp>
Chris@16: #include <stdarg.h>
Chris@16: #include <string>
Chris@16: 
Chris@101: #if defined (BOOST_INTERPROCESS_WINDOWS)
Chris@16: #  include <boost/interprocess/detail/win32_api.hpp>
Chris@16: #else
Chris@16: #  ifdef BOOST_HAS_UNISTD_H
Chris@16: #    include <errno.h>        //Errors
Chris@16: #    include <cstring>        //strerror
Chris@16: #  else  //ifdef BOOST_HAS_UNISTD_H
Chris@16: #    error Unknown platform
Chris@16: #  endif //ifdef BOOST_HAS_UNISTD_H
Chris@101: #endif   //#if defined (BOOST_INTERPROCESS_WINDOWS)
Chris@16: 
Chris@16: //!\file
Chris@16: //!Describes the error numbering of interprocess classes
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace interprocess {
Chris@101: #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
Chris@16: inline int system_error_code() // artifact of POSIX and WINDOWS error reporting
Chris@16: {
Chris@101:    #if defined (BOOST_INTERPROCESS_WINDOWS)
Chris@16:    return winapi::get_last_error();
Chris@16:    #else
Chris@16:    return errno; // GCC 3.1 won't accept ::errno
Chris@16:    #endif
Chris@16: }
Chris@16: 
Chris@16: 
Chris@101: #if defined (BOOST_INTERPROCESS_WINDOWS)
Chris@16: inline void fill_system_message(int sys_err_code, std::string &str)
Chris@16: {
Chris@16:    void *lpMsgBuf;
Chris@16:    winapi::format_message(
Chris@16:       winapi::format_message_allocate_buffer |
Chris@16:       winapi::format_message_from_system |
Chris@16:       winapi::format_message_ignore_inserts,
Chris@16:       0,
Chris@16:       sys_err_code,
Chris@16:       winapi::make_lang_id(winapi::lang_neutral, winapi::sublang_default), // Default language
Chris@16:       reinterpret_cast<char *>(&lpMsgBuf),
Chris@16:       0,
Chris@16:       0
Chris@16:    );
Chris@16:    str += static_cast<const char*>(lpMsgBuf);
Chris@16:    winapi::local_free( lpMsgBuf ); // free the buffer
Chris@16:    while ( str.size()
Chris@16:       && (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') )
Chris@16:       str.erase( str.size()-1 );
Chris@16: }
Chris@16: # else
Chris@16: inline void fill_system_message( int system_error, std::string &str)
Chris@16: {  str = std::strerror(system_error);  }
Chris@16: # endif
Chris@101: #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@16: 
Chris@16: enum error_code_t
Chris@16: {
Chris@16:    no_error = 0,
Chris@16:    system_error,     // system generated error; if possible, is translated
Chris@16:                      // to one of the more specific errors below.
Chris@16:    other_error,      // library generated error
Chris@16:    security_error,   // includes access rights, permissions failures
Chris@16:    read_only_error,
Chris@16:    io_error,
Chris@16:    path_error,
Chris@16:    not_found_error,
Chris@16: //   not_directory_error,
Chris@16:    busy_error,       // implies trying again might succeed
Chris@16:    already_exists_error,
Chris@16:    not_empty_error,
Chris@16:    is_directory_error,
Chris@16:    out_of_space_error,
Chris@16:    out_of_memory_error,
Chris@16:    out_of_resource_error,
Chris@16:    lock_error,
Chris@16:    sem_error,
Chris@16:    mode_error,
Chris@16:    size_error,
Chris@16:    corrupted_error,
Chris@16:    not_such_file_or_directory,
Chris@16:    invalid_argument,
Chris@16:    timeout_when_locking_error,
Chris@101:    timeout_when_waiting_error,
Chris@101:    owner_dead_error
Chris@16: };
Chris@16: 
Chris@16: typedef int    native_error_t;
Chris@16: 
Chris@101: #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
Chris@16: struct ec_xlate
Chris@16: {
Chris@16:    native_error_t sys_ec;
Chris@16:    error_code_t   ec;
Chris@16: };
Chris@16: 
Chris@16: static const ec_xlate ec_table[] =
Chris@16: {
Chris@101:    #if defined (BOOST_INTERPROCESS_WINDOWS)
Chris@16:    { /*ERROR_ACCESS_DENIED*/5L, security_error },
Chris@16:    { /*ERROR_INVALID_ACCESS*/12L, security_error },
Chris@16:    { /*ERROR_SHARING_VIOLATION*/32L, security_error },
Chris@16:    { /*ERROR_LOCK_VIOLATION*/33L, security_error },
Chris@16:    { /*ERROR_LOCKED*/212L, security_error },
Chris@16:    { /*ERROR_NOACCESS*/998L, security_error },
Chris@16:    { /*ERROR_WRITE_PROTECT*/19L, read_only_error },
Chris@16:    { /*ERROR_NOT_READY*/21L, io_error },
Chris@16:    { /*ERROR_SEEK*/25L, io_error },
Chris@16:    { /*ERROR_READ_FAULT*/30L, io_error },
Chris@16:    { /*ERROR_WRITE_FAULT*/29L, io_error },
Chris@16:    { /*ERROR_CANTOPEN*/1011L, io_error },
Chris@16:    { /*ERROR_CANTREAD*/1012L, io_error },
Chris@16:    { /*ERROR_CANTWRITE*/1013L, io_error },
Chris@16:    { /*ERROR_DIRECTORY*/267L, path_error },
Chris@16:    { /*ERROR_INVALID_NAME*/123L, path_error },
Chris@16:    { /*ERROR_FILE_NOT_FOUND*/2L, not_found_error },
Chris@16:    { /*ERROR_PATH_NOT_FOUND*/3L, not_found_error },
Chris@16:    { /*ERROR_DEV_NOT_EXIST*/55L, not_found_error },
Chris@16:    { /*ERROR_DEVICE_IN_USE*/2404L, busy_error },
Chris@16:    { /*ERROR_OPEN_FILES*/2401L, busy_error },
Chris@16:    { /*ERROR_BUSY_DRIVE*/142L, busy_error },
Chris@16:    { /*ERROR_BUSY*/170L, busy_error },
Chris@16:    { /*ERROR_FILE_EXISTS*/80L, already_exists_error },
Chris@16:    { /*ERROR_ALREADY_EXISTS*/183L, already_exists_error },
Chris@16:    { /*ERROR_DIR_NOT_EMPTY*/145L, not_empty_error },
Chris@16:    { /*ERROR_HANDLE_DISK_FULL*/39L, out_of_space_error },
Chris@16:    { /*ERROR_DISK_FULL*/112L, out_of_space_error },
Chris@16:    { /*ERROR_OUTOFMEMORY*/14L, out_of_memory_error },
Chris@16:    { /*ERROR_NOT_ENOUGH_MEMORY*/8L, out_of_memory_error },
Chris@16:    { /*ERROR_TOO_MANY_OPEN_FILES*/4L, out_of_resource_error },
Chris@16:    { /*ERROR_INVALID_ADDRESS*/487L, busy_error }
Chris@101:    #else    //#if defined (BOOST_INTERPROCESS_WINDOWS)
Chris@16:    { EACCES, security_error },
Chris@16:    { EROFS, read_only_error },
Chris@16:    { EIO, io_error },
Chris@16:    { ENAMETOOLONG, path_error },
Chris@16:    { ENOENT, not_found_error },
Chris@16:    //    { ENOTDIR, not_directory_error },
Chris@16:    { EAGAIN, busy_error },
Chris@16:    { EBUSY, busy_error },
Chris@16:    { ETXTBSY, busy_error },
Chris@16:    { EEXIST, already_exists_error },
Chris@16:    { ENOTEMPTY, not_empty_error },
Chris@16:    { EISDIR, is_directory_error },
Chris@16:    { ENOSPC, out_of_space_error },
Chris@16:    { ENOMEM, out_of_memory_error },
Chris@16:    { EMFILE, out_of_resource_error },
Chris@16:    { ENOENT, not_such_file_or_directory },
Chris@16:    { EINVAL, invalid_argument }
Chris@101:    #endif   //#if defined (BOOST_INTERPROCESS_WINDOWS)
Chris@16: };
Chris@16: 
Chris@16: inline error_code_t lookup_error(native_error_t err)
Chris@16: {
Chris@16:    const ec_xlate *cur  = &ec_table[0],
Chris@16:                   *end  = cur + sizeof(ec_table)/sizeof(ec_xlate);
Chris@16:    for  (;cur != end; ++cur ){
Chris@16:       if ( err == cur->sys_ec ) return cur->ec;
Chris@16:    }
Chris@16:    return system_error; // general system error code
Chris@16: }
Chris@16: 
Chris@16: struct error_info
Chris@16: {
Chris@16:    error_info(error_code_t ec = other_error )
Chris@16:       :  m_nat(0), m_ec(ec)
Chris@16:    {}
Chris@16: 
Chris@16:    error_info(native_error_t sys_err_code)
Chris@16:       :  m_nat(sys_err_code), m_ec(lookup_error(sys_err_code))
Chris@16:    {}
Chris@16: 
Chris@16:    error_info & operator =(error_code_t ec)
Chris@16:    {
Chris@16:       m_nat = 0;
Chris@16:       m_ec = ec;
Chris@16:       return *this;
Chris@16:    }
Chris@16: 
Chris@16:    error_info & operator =(native_error_t sys_err_code)
Chris@16:    {
Chris@16:       m_nat = sys_err_code;
Chris@16:       m_ec = lookup_error(sys_err_code);
Chris@16:       return *this;
Chris@16:    }
Chris@16: 
Chris@16:    native_error_t get_native_error()const
Chris@16:    {  return m_nat;  }
Chris@16: 
Chris@16:    error_code_t   get_error_code()const
Chris@16:    {  return m_ec;  }
Chris@16: 
Chris@16:    private:
Chris@16:    native_error_t m_nat;
Chris@16:    error_code_t   m_ec;
Chris@16: };
Chris@101: #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@16: 
Chris@16: }  // namespace interprocess {
Chris@16: }  // namespace boost
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_end.hpp>
Chris@16: 
Chris@16: #endif // BOOST_INTERPROCESS_ERRORS_HPP