diff options
author | Remko Tronçon <git@el-tramo.be> | 2012-12-23 13:16:26 (GMT) |
---|---|---|
committer | Remko Tronçon <git@el-tramo.be> | 2012-12-23 14:43:26 (GMT) |
commit | 491ddd570a752cf9bda85933bed0c6942e39b1f9 (patch) | |
tree | 10c25c1be8cc08d0497df1dccd56a10fbb30beee /3rdParty/Boost/src/libs/exception | |
parent | da7d7a0ca71b80281aa9ff2526290b61ccb0cc60 (diff) | |
download | swift-491ddd570a752cf9bda85933bed0c6942e39b1f9.zip swift-491ddd570a752cf9bda85933bed0c6942e39b1f9.tar.bz2 |
Update Boost to 1.52.0.
Change-Id: I1e56bea2600bf2ed9c5b3aba8c4f9d2a0f350e77
Diffstat (limited to '3rdParty/Boost/src/libs/exception')
-rw-r--r-- | 3rdParty/Boost/src/libs/exception/build/Jamfile.v2 | 14 | ||||
-rw-r--r-- | 3rdParty/Boost/src/libs/exception/src/clone_current_exception_non_intrusive.cpp | 320 |
2 files changed, 334 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/libs/exception/build/Jamfile.v2 b/3rdParty/Boost/src/libs/exception/build/Jamfile.v2 new file mode 100644 index 0000000..fb47659 --- /dev/null +++ b/3rdParty/Boost/src/libs/exception/build/Jamfile.v2 @@ -0,0 +1,14 @@ +# Boost Exception Library build Jamfile +# +# Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. +# +# 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) + +project boost/exception + : source-location ../src + : requirements <link>static + ; + +lib boost_exception : clone_current_exception_non_intrusive.cpp ; +boost-install boost_exception ; diff --git a/3rdParty/Boost/src/libs/exception/src/clone_current_exception_non_intrusive.cpp b/3rdParty/Boost/src/libs/exception/src/clone_current_exception_non_intrusive.cpp new file mode 100644 index 0000000..1710cd7 --- /dev/null +++ b/3rdParty/Boost/src/libs/exception/src/clone_current_exception_non_intrusive.cpp @@ -0,0 +1,320 @@ +//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. + +//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) + +//This MSVC-specific cpp file implements non-intrusive cloning of exception objects. +//Based on an exception_ptr implementation by Anthony Williams. + +#ifdef BOOST_NO_EXCEPTIONS +#error This file requires exception handling to be enabled. +#endif + +#include <boost/exception/detail/clone_current_exception.hpp> + +#if defined(BOOST_ENABLE_NON_INTRUSIVE_EXCEPTION_PTR) && defined(_MSC_VER) && defined(_M_IX86) && !defined(_M_X64) + +//Non-intrusive cloning support implemented below, only for MSVC versions mentioned above. +//Thanks Anthony Williams! + +#include <boost/exception/exception.hpp> +#include <boost/shared_ptr.hpp> +#ifndef BOOST_NO_RTTI +#include <typeinfo> +#endif +#include <windows.h> +#include <malloc.h> + +namespace + { + unsigned const exception_maximum_parameters=15; + unsigned const exception_noncontinuable=1; + +#if _MSC_VER==1310 + int const exception_info_offset=0x74; +#elif (_MSC_VER==1400 || _MSC_VER==1500) + int const exception_info_offset=0x80; +#else + int const exception_info_offset=-1; +#endif + + struct + exception_record + { + unsigned long ExceptionCode; + unsigned long ExceptionFlags; + exception_record * ExceptionRecord; + void * ExceptionAddress; + unsigned long NumberParameters; + ULONG_PTR ExceptionInformation[exception_maximum_parameters]; + }; + + struct + exception_pointers + { + exception_record * ExceptionRecord; + void * ContextRecord; + }; + + unsigned const cpp_exception_code=0xE06D7363; + unsigned const cpp_exception_magic_flag=0x19930520; + unsigned const cpp_exception_parameter_count=3; + + struct + dummy_exception_type + { + }; + + typedef int(dummy_exception_type::*normal_copy_constructor_ptr)(void * src); + typedef int(dummy_exception_type::*copy_constructor_with_virtual_base_ptr)(void * src,void * dst); + typedef void (dummy_exception_type::*destructor_ptr)(); + + union + cpp_copy_constructor + { + normal_copy_constructor_ptr normal_copy_constructor; + copy_constructor_with_virtual_base_ptr copy_constructor_with_virtual_base; + }; + + enum + cpp_type_flags + { + class_is_simple_type=1, + class_has_virtual_base=4 + }; + + struct + cpp_type_info + { + unsigned flags; +#ifndef BOOST_NO_RTTI + void const * type_info; +#else + std::type_info * type_info; +#endif + int this_offset; + int vbase_descr; + int vbase_offset; + unsigned long size; + cpp_copy_constructor copy_constructor; + }; + + struct + cpp_type_info_table + { + unsigned count; + const cpp_type_info * info[1]; + }; + + struct + cpp_exception_type + { + unsigned flags; + destructor_ptr destructor; + void(*custom_handler)(); + cpp_type_info_table const * type_info_table; + }; + + struct + exception_object_deleter + { + cpp_exception_type const & et_; + + exception_object_deleter( cpp_exception_type const & et ): + et_(et) + { + } + + void + operator()( void * obj ) + { + BOOST_ASSERT(obj!=0); + dummy_exception_type * dummy_exception_ptr=reinterpret_cast<dummy_exception_type *>(obj); + (dummy_exception_ptr->*(et_.destructor))(); + free(obj); + } + }; + + cpp_type_info const & + get_cpp_type_info( cpp_exception_type const & et ) + { + cpp_type_info const * ti = et.type_info_table->info[0]; + BOOST_ASSERT(ti!=0); + return *ti; + } + + void + copy_msvc_exception( void * dst, void * src, cpp_type_info const & ti ) + { + if( !(ti.flags & class_is_simple_type) && ti.copy_constructor.normal_copy_constructor ) + { + dummy_exception_type * dummy_exception_ptr = reinterpret_cast<dummy_exception_type *>(dst); + if( ti.flags & class_has_virtual_base ) + (dummy_exception_ptr->*(ti.copy_constructor.copy_constructor_with_virtual_base))(src,dst); + else + (dummy_exception_ptr->*(ti.copy_constructor.normal_copy_constructor))(src); + } + else + memmove(dst,src,ti.size); + } + + boost::shared_ptr<void> + clone_msvc_exception( void * src, cpp_exception_type const & et ) + { + assert(src!=0); + cpp_type_info const & ti=get_cpp_type_info(et); + if( void * dst = malloc(ti.size) ) + { + try + { + copy_msvc_exception(dst,src,ti); + } + catch( + ... ) + { + free(dst); + throw; + } + return boost::shared_ptr<void>(dst,exception_object_deleter(et)); + } + else + throw std::bad_alloc(); + } + + class + cloned_exception: + public boost::exception_detail::clone_base + { + cloned_exception( cloned_exception const & ); + cloned_exception & operator=( cloned_exception const & ); + + cpp_exception_type const & et_; + boost::shared_ptr<void> exc_; + + public: + + cloned_exception( void * exc, cpp_exception_type const & et ): + et_(et), + exc_(clone_msvc_exception(exc,et_)) + { + } + + ~cloned_exception() throw() + { + } + + boost::exception_detail::clone_base const * + clone() const + { + return new cloned_exception(exc_.get(),et_); + } + + void + rethrow() const + { + cpp_type_info const & ti=get_cpp_type_info(et_); + void * dst = _alloca(ti.size); + copy_msvc_exception(dst,exc_.get(),ti); + ULONG_PTR args[cpp_exception_parameter_count]; + args[0]=cpp_exception_magic_flag; + args[1]=reinterpret_cast<ULONG_PTR>(dst); + args[2]=reinterpret_cast<ULONG_PTR>(&et_); + RaiseException(cpp_exception_code,EXCEPTION_NONCONTINUABLE,cpp_exception_parameter_count,args); + } + }; + + bool + is_cpp_exception( EXCEPTION_RECORD const * record ) + { + return record && + (record->ExceptionCode==cpp_exception_code) && + (record->NumberParameters==cpp_exception_parameter_count) && + (record->ExceptionInformation[0]==cpp_exception_magic_flag); + } + + unsigned long + exception_cloning_filter( int & result, boost::exception_detail::clone_base const * & ptr, void * info_ ) + { + BOOST_ASSERT(exception_info_offset>=0); + BOOST_ASSERT(info_!=0); + EXCEPTION_POINTERS * info=reinterpret_cast<EXCEPTION_POINTERS *>(info_); + EXCEPTION_RECORD * record=info->ExceptionRecord; + if( is_cpp_exception(record) ) + { + if( !record->ExceptionInformation[2] ) + record = *reinterpret_cast<EXCEPTION_RECORD * *>(reinterpret_cast<char *>(_errno())+exception_info_offset); + if( is_cpp_exception(record) && record->ExceptionInformation[2] ) + try + { + ptr = new cloned_exception( + reinterpret_cast<void *>(record->ExceptionInformation[1]), + *reinterpret_cast<cpp_exception_type const *>(record->ExceptionInformation[2])); + result = boost::exception_detail::clone_current_exception_result::success; + } + catch( + std::bad_alloc & ) + { + result = boost::exception_detail::clone_current_exception_result::bad_alloc; + } + catch( + ... ) + { + result = boost::exception_detail::clone_current_exception_result::bad_exception; + } + } + return EXCEPTION_EXECUTE_HANDLER; + } + } + +namespace +boost + { + namespace + exception_detail + { + int + clone_current_exception_non_intrusive( clone_base const * & cloned ) + { + BOOST_ASSERT(!cloned); + int result = clone_current_exception_result::not_supported; + if( exception_info_offset>=0 ) + { + clone_base const * ptr=0; + __try + { + throw; + } + __except(exception_cloning_filter(result,ptr,GetExceptionInformation())) + { + } + if( result==clone_current_exception_result::success ) + cloned=ptr; + } + BOOST_ASSERT(result!=clone_current_exception_result::success || cloned); + return result; + } + } + } + +#else + +//On all other compilers, return clone_current_exception_result::not_supported. +//On such platforms, only the intrusive enable_current_exception() cloning will work. + +#include <boost/config.hpp> + +namespace +boost + { + namespace + exception_detail + { + int + clone_current_exception_non_intrusive( clone_base const * & ) + { + return clone_current_exception_result::not_supported; + } + } + } + +#endif |