boost/interprocess/exceptions.hpp

0001 //////////////////////////////////////////////////////////////////////////////
0002 //
0003 // (C) Copyright Ion Gaztanaga 2005-2015. Distributed under the Boost
0004 // Software License, Version 1.0. (See accompanying file
0005 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 //
0007 // See http://www.boost.org/libs/interprocess for documentation.
0008 //
0009 //////////////////////////////////////////////////////////////////////////////
0010
0011 #ifndef BOOST_INTERPROCESS_EXCEPTIONS_HPP
0012 #define BOOST_INTERPROCESS_EXCEPTIONS_HPP
0013
0014 #ifndef BOOST_CONFIG_HPP
0015 #  include <boost/config.hpp>
0016 #endif
0017 0018 ">#
0019 #if defined(BOOST_HAS_PRAGMA_ONCE)
0020 #  pragma once
0021 #endif
0022
0023 #include <boost/interprocess/detail/config_begin.hpp>
0024 #include <boost/interprocess/detail/workaround.hpp>
0025 #include <boost/interprocess/errors.hpp>
0026 #include <stdexcept>
0027
0028 //!\file
0029 //!Describes exceptions thrown by interprocess classes
0030
0031 namespace boost {
0032
0033 namespace interprocess {
0034
0035 //!This class is the base class of all exceptions
0036 //!thrown by boost::interprocess
0037 class BOOST_SYMBOL_VISIBLE interprocess_exception : public std::exception
0038 {
0039    public:
0040    interprocess_exception(const char *err) BOOST_NOEXCEPT
0041       :  m_err(other_error)
0042    {
0043       BOOST_INTERPROCESS_TRY   {  m_str = err; }
0044       BOOST_INTERPROCESS_CATCH(...) {} BOOST_INTERPROCESS_CATCH_END
0045    }
0046
0047    interprocess_exception(const error_info &err_info, const char *str = 0)
0048       :  m_err(err_info)
0049    {
0050       BOOST_INTERPROCESS_TRY{
0051          if(m_err.get_native_error() != 0){
0052             fill_system_message(m_err.get_native_error(), m_str);
0053          }
0054          else if(str){
0055             m_str = str;
0056          }
0057          else{
0058             m_str = "boost::interprocess_exception::library_error";
0059          }
0060       }
0061       BOOST_INTERPROCESS_CATCH(...){} BOOST_INTERPROCESS_CATCH_END
0062    }
0063
0064    ~interprocess_exception() BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE {}
0065
0066    const char * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
0067    {  return m_str.c_str();  }
0068
0069    native_error_t get_native_error() const BOOST_NOEXCEPT { return m_err.get_native_error(); }
0070
0071    // Note: a value of other_error implies a library (rather than system) error
0072    error_code_t   get_error_code()  const BOOST_NOEXCEPT { return m_err.get_error_code(); }
0073
0074    #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
0075    private:
0076    error_info        m_err;
0077    std::string       m_str;
0078    #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
0079 };
0080
0081 //!This is the exception thrown by shared interprocess_mutex family when a deadlock situation
0082 //!is detected or when using a interprocess_condition the interprocess_mutex is not locked
0083 class BOOST_SYMBOL_VISIBLE lock_exception : public interprocess_exception
0084 {
0085    public:
0086    lock_exception(error_code_t err = lock_error) BOOST_NOEXCEPT
0087       :  interprocess_exception(err)
0088    {}
0089
0090    const char* what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
0091    {  return "boost::interprocess::lock_exception";  }
0092 };
0093
0094
0095 //!This exception is thrown when a memory request can't be
0096 //!fulfilled.
0097 class BOOST_SYMBOL_VISIBLE bad_alloc : public interprocess_exception
0098 {
0099  public:
0100    bad_alloc() : interprocess_exception("::boost::interprocess::bad_alloc") {}
0101
0102    const char* what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
0103    {  return "boost::interprocess::bad_alloc";  }
0104 };
0105
0106 }  // namespace interprocess {
0107
0108 }  // namespace boost
0109
0110 #include <boost/interprocess/detail/config_end.hpp>
0111
0112 #endif // BOOST_INTERPROCESS_EXCEPTIONS_HPP