boost/coroutine/v1/detail/coroutine_object_void_1.ipp
// Copyright Oliver Kowalke 2009. // 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) template< typename Signature, typename Fn, typename StackAllocator, typename Allocator, typename Caller > class coroutine_object< Signature, Fn, StackAllocator, Allocator, Caller, void, 1 > : private stack_tuple< StackAllocator >, public coroutine_base< Signature > { public: typedef typename Allocator::template rebind< coroutine_object< Signature, Fn, StackAllocator, Allocator, Caller, void, 1 > >::other allocator_t; typedef typename arg< Signature >::type arg_type; private: typedef stack_tuple< StackAllocator > pbase_type; typedef coroutine_base< Signature > base_type; Fn fn_; allocator_t alloc_; static void destroy_( allocator_t & alloc, coroutine_object * p) { alloc.destroy( p); alloc.deallocate( p, 1); } coroutine_object( coroutine_object &); coroutine_object & operator=( coroutine_object const&); void enter_() { holder< void > * hldr_from( reinterpret_cast< holder< void > * >( this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( this), this->preserve_fpu() ) ) ); this->callee_ = * hldr_from->ctx; if ( this->except_) rethrow_exception( this->except_); } void enter_( typename detail::param< arg_type >::type arg) { tuple< coroutine_object *, typename detail::param< arg_type >::type > tpl( this, arg); holder< void > * hldr_from( reinterpret_cast< holder< void > * >( this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( & tpl), this->preserve_fpu() ) ) ); this->callee_ = * hldr_from->ctx; if ( this->except_) rethrow_exception( this->except_); } void unwind_stack_() BOOST_NOEXCEPT { BOOST_ASSERT( ! this->is_complete() ); this->flags_ |= flag_unwind_stack; holder< arg_type > hldr_to( & this->caller_, true); this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); this->flags_ &= ~flag_unwind_stack; BOOST_ASSERT( this->is_complete() ); } public: #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES coroutine_object( BOOST_RV_REF( Fn) fn, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline1< coroutine_object >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( forward< Fn >( fn) ), alloc_( alloc) { enter_(); } coroutine_object( BOOST_RV_REF( Fn) fn, typename detail::param< arg_type >::type arg, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline2< coroutine_object, typename detail::param< arg_type >::type >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( forward< Fn >( fn) ), alloc_( alloc) { enter_( arg); } #else coroutine_object( Fn fn, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline1< coroutine_object >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_(); } coroutine_object( Fn fn, typename detail::param< arg_type >::type arg, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline2< coroutine_object, typename detail::param< arg_type >::type >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_( arg); } coroutine_object( BOOST_RV_REF( Fn) fn, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline1< coroutine_object >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_(); } coroutine_object( BOOST_RV_REF( Fn) fn, typename detail::param< arg_type >::type arg, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline2< coroutine_object, typename detail::param< arg_type >::type >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_( arg); } #endif ~coroutine_object() { if ( ! this->is_complete() && this->force_unwind() ) unwind_stack_(); } void run() { coroutine_context callee; coroutine_context caller; { Caller c( this->caller_, false, this->preserve_fpu(), alloc_); try { fn_( c); } catch ( forced_unwind const&) {} catch (...) { this->except_ = current_exception(); } callee = c.impl_->callee_; } this->flags_ |= flag_complete; holder< void > hldr_to( & caller); caller.jump( callee, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); BOOST_ASSERT_MSG( false, "coroutine is complete"); } void run( typename detail::param< arg_type >::type arg) { coroutine_context callee; coroutine_context caller; { Caller c( this->caller_, false, this->preserve_fpu(), alloc_); c.impl_->result_ = arg; try { fn_( c); } catch ( forced_unwind const&) {} catch (...) { this->except_ = current_exception(); } callee = c.impl_->callee_; } this->flags_ |= flag_complete; holder< void > hldr_to( & caller); caller.jump( callee, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); BOOST_ASSERT_MSG( false, "coroutine is complete"); } void deallocate_object() { destroy_( alloc_, this); } }; template< typename Signature, typename Fn, typename StackAllocator, typename Allocator, typename Caller > class coroutine_object< Signature, reference_wrapper< Fn >, StackAllocator, Allocator, Caller, void, 1 > : private stack_tuple< StackAllocator >, public coroutine_base< Signature > { public: typedef typename Allocator::template rebind< coroutine_object< Signature, Fn, StackAllocator, Allocator, Caller, void, 1 > >::other allocator_t; typedef typename arg< Signature >::type arg_type; private: typedef stack_tuple< StackAllocator > pbase_type; typedef coroutine_base< Signature > base_type; Fn fn_; allocator_t alloc_; static void destroy_( allocator_t & alloc, coroutine_object * p) { alloc.destroy( p); alloc.deallocate( p, 1); } coroutine_object( coroutine_object &); coroutine_object & operator=( coroutine_object const&); void enter_() { holder< void > * hldr_from( reinterpret_cast< holder< void > * >( this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( this), this->preserve_fpu() ) ) ); this->callee_ = * hldr_from->ctx; if ( this->except_) rethrow_exception( this->except_); } void enter_( typename detail::param< arg_type >::type arg) { tuple< coroutine_object *, typename detail::param< arg_type >::type > tpl( this, arg); holder< void > * hldr_from( reinterpret_cast< holder< void > * >( this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( & tpl), this->preserve_fpu() ) ) ); this->callee_ = * hldr_from->ctx; if ( this->except_) rethrow_exception( this->except_); } void unwind_stack_() BOOST_NOEXCEPT { BOOST_ASSERT( ! this->is_complete() ); this->flags_ |= flag_unwind_stack; holder< arg_type > hldr_to( & this->caller_, true); this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); this->flags_ &= ~flag_unwind_stack; BOOST_ASSERT( this->is_complete() ); } public: coroutine_object( reference_wrapper< Fn > fn, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline1< coroutine_object >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_(); } coroutine_object( reference_wrapper< Fn > fn, typename detail::param< arg_type >::type arg, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline2< coroutine_object, typename detail::param< arg_type >::type >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_( arg); } ~coroutine_object() { if ( ! this->is_complete() && this->force_unwind() ) unwind_stack_(); } void run() { coroutine_context callee; coroutine_context caller; { Caller c( this->caller_, false, this->preserve_fpu(), alloc_); try { fn_( c); } catch ( forced_unwind const&) {} catch (...) { this->except_ = current_exception(); } callee = c.impl_->callee_; } this->flags_ |= flag_complete; holder< void > hldr_to( & caller); caller.jump( callee, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); BOOST_ASSERT_MSG( false, "coroutine is complete"); } void run( typename detail::param< arg_type >::type arg) { coroutine_context callee; coroutine_context caller; { Caller c( this->caller_, false, this->preserve_fpu(), alloc_); c.impl_->result_ = arg; try { fn_( c); } catch ( forced_unwind const&) {} catch (...) { this->except_ = current_exception(); } callee = c.impl_->callee_; } this->flags_ |= flag_complete; holder< void > hldr_to( & caller); caller.jump( callee, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); BOOST_ASSERT_MSG( false, "coroutine is complete"); } void deallocate_object() { destroy_( alloc_, this); } }; template< typename Signature, typename Fn, typename StackAllocator, typename Allocator, typename Caller > class coroutine_object< Signature, const reference_wrapper< Fn >, StackAllocator, Allocator, Caller, void, 1 > : private stack_tuple< StackAllocator >, public coroutine_base< Signature > { public: typedef typename Allocator::template rebind< coroutine_object< Signature, Fn, StackAllocator, Allocator, Caller, void, 1 > >::other allocator_t; typedef typename arg< Signature >::type arg_type; private: typedef stack_tuple< StackAllocator > pbase_type; typedef coroutine_base< Signature > base_type; Fn fn_; allocator_t alloc_; static void destroy_( allocator_t & alloc, coroutine_object * p) { alloc.destroy( p); alloc.deallocate( p, 1); } coroutine_object( coroutine_object &); coroutine_object & operator=( coroutine_object const&); void enter_() { holder< void > * hldr_from( reinterpret_cast< holder< void > * >( this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( this), this->preserve_fpu() ) ) ); this->callee_ = * hldr_from->ctx; if ( this->except_) rethrow_exception( this->except_); } void enter_( typename detail::param< arg_type >::type arg) { tuple< coroutine_object *, typename detail::param< arg_type >::type > tpl( this, arg); holder< void > * hldr_from( reinterpret_cast< holder< void > * >( this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( & tpl), this->preserve_fpu() ) ) ); this->callee_ = * hldr_from->ctx; if ( this->except_) rethrow_exception( this->except_); } void unwind_stack_() BOOST_NOEXCEPT { BOOST_ASSERT( ! this->is_complete() ); this->flags_ |= flag_unwind_stack; holder< arg_type > hldr_to( & this->caller_, true); this->caller_.jump( this->callee_, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); this->flags_ &= ~flag_unwind_stack; BOOST_ASSERT( this->is_complete() ); } public: coroutine_object( const reference_wrapper< Fn > fn, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline1< coroutine_object >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_(); } coroutine_object( const reference_wrapper< Fn > fn, typename detail::param< arg_type >::type arg, attributes const& attr, StackAllocator const& stack_alloc, allocator_t const& alloc) : pbase_type( stack_alloc, attr.size), base_type( trampoline2< coroutine_object, typename detail::param< arg_type >::type >, & this->stack_ctx, stack_unwind == attr.do_unwind, fpu_preserved == attr.preserve_fpu), fn_( fn), alloc_( alloc) { enter_( arg); } ~coroutine_object() { if ( ! this->is_complete() && this->force_unwind() ) unwind_stack_(); } void run() { coroutine_context callee; coroutine_context caller; { Caller c( this->caller_, false, this->preserve_fpu(), alloc_); try { fn_( c); } catch ( forced_unwind const&) {} catch (...) { this->except_ = current_exception(); } callee = c.impl_->callee_; } this->flags_ |= flag_complete; holder< void > hldr_to( & caller); caller.jump( callee, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); BOOST_ASSERT_MSG( false, "coroutine is complete"); } void run( typename detail::param< arg_type >::type arg) { coroutine_context callee; coroutine_context caller; { Caller c( this->caller_, false, this->preserve_fpu(), alloc_); c.impl_->result_ = arg; try { fn_( c); } catch ( forced_unwind const&) {} catch (...) { this->except_ = current_exception(); } callee = c.impl_->callee_; } this->flags_ |= flag_complete; holder< void > hldr_to( & caller); caller.jump( callee, reinterpret_cast< intptr_t >( & hldr_to), this->preserve_fpu() ); BOOST_ASSERT_MSG( false, "coroutine is complete"); } void deallocate_object() { destroy_( alloc_, this); } };