63e88f80
 Hu Chunming
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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2005-2015. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/interprocess for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_INTERPROCESS_EXCEPTIONS_HPP
#define BOOST_INTERPROCESS_EXCEPTIONS_HPP
#ifndef BOOST_CONFIG_HPP
# include <boost/config.hpp>
#endif
#
#if defined(BOOST_HAS_PRAGMA_ONCE)
# pragma once
#endif
#include <boost/interprocess/detail/config_begin.hpp>
#include <boost/interprocess/detail/workaround.hpp>
#include <boost/interprocess/errors.hpp>
#include <stdexcept>
//!\file
//!Describes exceptions thrown by interprocess classes
namespace boost {
namespace interprocess {
//!This class is the base class of all exceptions
//!thrown by boost::interprocess
class BOOST_SYMBOL_VISIBLE interprocess_exception : public std::exception
{
public:
interprocess_exception(const char *err) BOOST_NOEXCEPT
: m_err(other_error)
{
BOOST_TRY { m_str = err; }
BOOST_CATCH(...) {} BOOST_CATCH_END
}
interprocess_exception(const error_info &err_info, const char *str = 0)
: m_err(err_info)
{
BOOST_TRY{
if(m_err.get_native_error() != 0){
fill_system_message(m_err.get_native_error(), m_str);
}
else if(str){
m_str = str;
}
else{
m_str = "boost::interprocess_exception::library_error";
}
}
BOOST_CATCH(...){} BOOST_CATCH_END
}
~interprocess_exception() BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE {}
const char * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
{ return m_str.c_str(); }
native_error_t get_native_error() const BOOST_NOEXCEPT { return m_err.get_native_error(); }
// Note: a value of other_error implies a library (rather than system) error
error_code_t get_error_code() const BOOST_NOEXCEPT { return m_err.get_error_code(); }
#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
private:
error_info m_err;
std::string m_str;
#endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
};
//!This is the exception thrown by shared interprocess_mutex family when a deadlock situation
//!is detected or when using a interprocess_condition the interprocess_mutex is not locked
class BOOST_SYMBOL_VISIBLE lock_exception : public interprocess_exception
{
public:
lock_exception(error_code_t err = lock_error) BOOST_NOEXCEPT
: interprocess_exception(err)
{}
const char* what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
{ return "boost::interprocess::lock_exception"; }
};
//!This exception is thrown when a memory request can't be
//!fulfilled.
class BOOST_SYMBOL_VISIBLE bad_alloc : public interprocess_exception
{
public:
bad_alloc() : interprocess_exception("::boost::interprocess::bad_alloc") {}
const char* what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
{ return "boost::interprocess::bad_alloc"; }
};
} // namespace interprocess {
} // namespace boost
#include <boost/interprocess/detail/config_end.hpp>
#endif // BOOST_INTERPROCESS_EXCEPTIONS_HPP
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