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@ -1,344 +0,0 @@ |
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Index: boost_1_65_0/boost/context/continuation_fcontext.hpp
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===================================================================
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--- boost_1_65_0.orig/boost/context/continuation_fcontext.hpp
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+++ boost_1_65_0/boost/context/continuation_fcontext.hpp
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@@ -95,7 +95,7 @@ transfer_t context_ontop( transfer_t t)
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t.data = nullptr; |
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Ctx c{ t.fctx }; |
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// execute function, pass continuation via reference |
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- fn( std::move( c) );
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+ c = fn( std::move( c) );
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#if defined(BOOST_NO_CXX14_STD_EXCHANGE) |
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return { exchange( c.fctx_, nullptr), nullptr }; |
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#else |
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Index: boost_1_65_0/boost/context/continuation_ucontext.hpp
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===================================================================
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--- boost_1_65_0.orig/boost/context/continuation_ucontext.hpp
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+++ boost_1_65_0/boost/context/continuation_ucontext.hpp
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@@ -84,18 +84,18 @@ static void entry_func( void * data) noe
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struct BOOST_CONTEXT_DECL activation_record { |
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thread_local static activation_record * current_rec; |
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- ucontext_t uctx{};
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- stack_context sctx{};
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- bool main_ctx{ true };
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- activation_record * from{ nullptr };
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- std::function< void(activation_record*&) > ontop{};
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- bool terminated{ false };
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- bool force_unwind{ false };
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+ ucontext_t uctx{};
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+ stack_context sctx{};
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+ bool main_ctx{ true };
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+ activation_record * from{ nullptr };
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+ std::function< activation_record*(activation_record*&) > ontop{};
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+ bool terminated{ false };
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+ bool force_unwind{ false };
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#if defined(BOOST_USE_ASAN) |
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- void * fake_stack{ nullptr };
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- void * stack_bottom{ nullptr };
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- std::size_t stack_size{ 0 };
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- bool started{ false };
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+ void * fake_stack{ nullptr };
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+ void * stack_bottom{ nullptr };
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+ std::size_t stack_size{ 0 };
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+ bool started{ false };
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#endif |
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static activation_record *& current() noexcept; |
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@@ -168,20 +168,30 @@ struct BOOST_CONTEXT_DECL activation_rec
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current()->ontop = std::bind( |
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[](typename std::decay< Fn >::type & fn, activation_record *& ptr){ |
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Ctx c{ ptr }; |
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- fn( std::move( c) );
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+ c = fn( std::move( c) );
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if ( ! c) { |
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ptr = nullptr; |
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} |
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+#if defined(BOOST_NO_CXX14_STD_EXCHANGE)
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+ return exchange( c.ptr_, nullptr);
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+#else
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+ return std::exchange( c.ptr_, nullptr);
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+#endif
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}, |
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std::forward< Fn >( fn), |
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std::placeholders::_1); |
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#else |
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current()->ontop = [fn=std::forward<Fn>(fn)](activation_record *& ptr){ |
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Ctx c{ ptr }; |
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- fn( std::move( c) );
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+ c = fn( std::move( c) );
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if ( ! c) { |
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ptr = nullptr; |
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} |
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+#if defined(BOOST_NO_CXX14_STD_EXCHANGE)
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+ return exchange( c.ptr_, nullptr);
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+#else
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+ return std::exchange( c.ptr_, nullptr);
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+#endif
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}; |
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#endif |
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#if defined(BOOST_USE_SEGMENTED_STACKS) |
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@@ -408,7 +418,7 @@ public:
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if ( BOOST_UNLIKELY( detail::activation_record::current()->force_unwind) ) { |
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throw detail::forced_unwind{ ptr}; |
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} else if ( BOOST_UNLIKELY( nullptr != detail::activation_record::current()->ontop) ) { |
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- detail::activation_record::current()->ontop( ptr);
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+ ptr = detail::activation_record::current()->ontop( ptr);
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detail::activation_record::current()->ontop = nullptr; |
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} |
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return continuation{ ptr }; |
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@@ -426,7 +436,7 @@ public:
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if ( BOOST_UNLIKELY( detail::activation_record::current()->force_unwind) ) { |
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throw detail::forced_unwind{ ptr}; |
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} else if ( BOOST_UNLIKELY( nullptr != detail::activation_record::current()->ontop) ) { |
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- detail::activation_record::current()->ontop( ptr);
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+ ptr = detail::activation_record::current()->ontop( ptr);
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detail::activation_record::current()->ontop = nullptr; |
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} |
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return continuation{ ptr }; |
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Index: boost_1_65_0/boost/context/continuation_winfib.hpp
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===================================================================
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--- boost_1_65_0.orig/boost/context/continuation_winfib.hpp
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+++ boost_1_65_0/boost/context/continuation_winfib.hpp
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@@ -65,13 +65,13 @@ static VOID WINAPI entry_func( LPVOID da
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struct BOOST_CONTEXT_DECL activation_record { |
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thread_local static activation_record * current_rec; |
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- LPVOID fiber{ nullptr };
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- stack_context sctx{};
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- bool main_ctx{ true };
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- activation_record * from{ nullptr };
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- std::function< void(activation_record*&) > ontop{};
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- bool terminated{ false };
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- bool force_unwind{ false };
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+ LPVOID fiber{ nullptr };
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+ stack_context sctx{};
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+ bool main_ctx{ true };
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+ activation_record * from{ nullptr };
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+ std::function< activation_record*(activation_record*&) > ontop{};
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+ bool terminated{ false };
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+ bool force_unwind{ false };
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static activation_record *& current() noexcept; |
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@@ -142,20 +142,30 @@ struct BOOST_CONTEXT_DECL activation_rec
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current()->ontop = std::bind( |
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[](typename std::decay< Fn >::type & fn, activation_record *& ptr){ |
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Ctx c{ ptr }; |
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- fn( std::move( c) );
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+ c = fn( std::move( c) );
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if ( ! c) { |
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ptr = nullptr; |
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} |
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+#if defined(BOOST_NO_CXX14_STD_EXCHANGE)
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+ return exchange( c.ptr_, nullptr);
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+#else
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+ return std::exchange( c.ptr_, nullptr);
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+#endif
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}, |
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std::forward< Fn >( fn), |
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std::placeholders::_1); |
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#else |
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current()->ontop = [fn=std::forward<Fn>(fn)](activation_record *& ptr){ |
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Ctx c{ ptr }; |
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- fn( std::move( c) );
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+ c = fn( std::move( c) );
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if ( ! c) { |
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ptr = nullptr; |
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} |
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+#if defined(BOOST_NO_CXX14_STD_EXCHANGE)
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+ return exchange( c.ptr_, nullptr);
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+#else
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+ return std::exchange( c.ptr_, nullptr);
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+#endif
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}; |
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#endif |
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// context switch |
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@@ -336,7 +346,7 @@ public:
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if ( BOOST_UNLIKELY( detail::activation_record::current()->force_unwind) ) { |
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throw detail::forced_unwind{ ptr}; |
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} else if ( BOOST_UNLIKELY( nullptr != detail::activation_record::current()->ontop) ) { |
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- detail::activation_record::current()->ontop( ptr);
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+ ptr = detail::activation_record::current()->ontop( ptr);
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detail::activation_record::current()->ontop = nullptr; |
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} |
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return continuation{ ptr }; |
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@@ -354,7 +364,7 @@ public:
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if ( BOOST_UNLIKELY( detail::activation_record::current()->force_unwind) ) { |
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throw detail::forced_unwind{ ptr}; |
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} else if ( BOOST_UNLIKELY( nullptr != detail::activation_record::current()->ontop) ) { |
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- detail::activation_record::current()->ontop( ptr);
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+ ptr = detail::activation_record::current()->ontop( ptr);
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detail::activation_record::current()->ontop = nullptr; |
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} |
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return continuation{ ptr }; |
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Index: boost_1_65_0/boost/thread/win32/condition_variable.hpp
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===================================================================
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--- boost_1_65_0.orig/boost/thread/win32/condition_variable.hpp
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+++ boost_1_65_0/boost/thread/win32/condition_variable.hpp
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@@ -211,7 +211,7 @@ namespace boost
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{} |
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#endif |
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- void remove_waiter()
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+ void remove_waiter_and_reset()
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{ |
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if (entry) { |
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boost::lock_guard<boost::mutex> internal_lock(internal_mutex); |
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@@ -221,7 +221,7 @@ namespace boost
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} |
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~entry_manager() BOOST_NOEXCEPT_IF(false) |
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{ |
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- remove_waiter();
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+ remove_waiter_and_reset();
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} |
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list_entry* operator->() |
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@@ -250,7 +250,7 @@ namespace boost
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woken=entry->woken(); |
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} |
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// do it here to avoid throwing on the destructor |
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- entry->remove_waiter();
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+ entry.remove_waiter_and_reset();
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locker.lock(); |
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return woken; |
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} |
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Index: boost_1_65_0/libs/context/doc/callcc.qbk
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===================================================================
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--- boost_1_65_0.orig/libs/context/doc/callcc.qbk
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+++ boost_1_65_0/libs/context/doc/callcc.qbk
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@@ -176,6 +176,7 @@ return `void`.
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c=c.resume_with([&data](ctx::continuation && c){ |
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std::cout << "f2: entered: " << data << std::endl; |
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data=-1; |
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+ return std::move( c);
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}); |
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std::cout << "f1: returned third time" << std::endl; |
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@@ -221,6 +222,7 @@ an exception.
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c = c.resume_with( |
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[](ctx::continuation && c){ |
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throw my_exception(std::move(c),"abc"); |
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+ return std::move( c);
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}); |
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output: |
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@@ -527,11 +529,11 @@ e.g. ['continuation::operator bool()] re
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[variablelist |
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[[Effects:] [Captures current continuation and resumes `*this`. |
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-The function `resume_with`, is used to execute function `fn` in continuation
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+The function `resume_with`, is used to execute function `fn` in the execution context of
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`*this` (e.g. the stack frame of `fn` is allocated on stack of `*this`).]] |
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[[Returns:] [The continuation representing the continuation that has been |
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suspended.]] |
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-[[Note:] [Function `fn` needs to return void.]]
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+[[Note:] [Function `fn` needs to return `continuation`.]]
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[[Note:] [The returned continuation indicates if the suspended continuation has |
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terminated (return from context-function) via `bool operator()`.]] |
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] |
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Index: boost_1_65_0/libs/context/example/ontop.cpp
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===================================================================
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--- boost_1_65_0.orig/libs/context/example/ontop.cpp
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+++ boost_1_65_0/libs/context/example/ontop.cpp
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@@ -32,6 +32,7 @@ int main() {
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c = c.resume_with( [&data](ctx::continuation && c){ |
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std::cout << "f2: entered: " << data << std::endl; |
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data = -1; |
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+ return std::move( c);
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}); |
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std::cout << "f1: returned third time" << std::endl; |
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std::cout << "main: done" << std::endl; |
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Index: boost_1_65_0/libs/context/example/ontop_void.cpp
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===================================================================
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--- boost_1_65_0.orig/libs/context/example/ontop_void.cpp
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+++ boost_1_65_0/libs/context/example/ontop_void.cpp
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@@ -21,8 +21,9 @@ ctx::continuation f1( ctx::continuation
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return std::move( c); |
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} |
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-void f2( ctx::continuation && c) {
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+ctx::continuation f2( ctx::continuation && c) {
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std::cout << "f2: entered" << std::endl; |
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+ return std::move( c);
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} |
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int main() { |
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Index: boost_1_65_0/libs/context/example/throw.cpp
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===================================================================
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--- boost_1_65_0.orig/libs/context/example/throw.cpp
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+++ boost_1_65_0/libs/context/example/throw.cpp
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@@ -38,6 +38,7 @@ int main() {
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c = c.resume_with( |
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[](ctx::continuation && c){ |
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throw my_exception(std::move( c), "abc"); |
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+ return std::move( c);
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}); |
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std::cout << "main: done" << std::endl; |
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Index: boost_1_65_0/libs/context/test/test_callcc.cpp
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===================================================================
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--- boost_1_65_0.orig/libs/context/test/test_callcc.cpp
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+++ boost_1_65_0/libs/context/test/test_callcc.cpp
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@@ -252,6 +252,7 @@ void test_ontop() {
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c = c.resume_with( |
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[&i](ctx::continuation && c){ |
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i -= 10; |
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+ return std::move( c);
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}); |
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BOOST_CHECK( c); |
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BOOST_CHECK_EQUAL( i, 200); |
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@@ -266,6 +267,7 @@ void test_ontop() {
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c = c.resume_with( |
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[&c1](ctx::continuation && c){ |
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c1 = std::move( c); |
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+ return std::move( c);
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}); |
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} |
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} |
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@@ -290,7 +292,8 @@ void test_ontop_exception() {
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const char * what = "hello world"; |
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c.resume_with( |
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[what](ctx::continuation && c){ |
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- throw my_exception( std::move( c), what);
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+ throw my_exception( std::move( c), what);
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+ return std::move( c);
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}); |
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BOOST_CHECK_EQUAL( 3, value1); |
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BOOST_CHECK_EQUAL( std::string( what), value2); |
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Index: boost_1_65_0/libs/fiber/src/context.cpp
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===================================================================
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--- boost_1_65_0.orig/libs/fiber/src/context.cpp
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+++ boost_1_65_0/libs/fiber/src/context.cpp
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@@ -145,6 +145,7 @@ context::resume() noexcept {
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// pass pointer to the context that resumes `this` |
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c_.resume_with([prev](boost::context::continuation && c){ |
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prev->c_ = std::move( c); |
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+ return boost::context::continuation{};
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}); |
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} |
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@@ -158,6 +159,7 @@ context::resume( detail::spinlock_lock &
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c_.resume_with([prev,&lk](boost::context::continuation && c){ |
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prev->c_ = std::move( c); |
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lk.unlock(); |
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+ return boost::context::continuation{};
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}); |
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} |
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@@ -171,6 +173,7 @@ context::resume( context * ready_ctx) no
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c_.resume_with([prev,ready_ctx](boost::context::continuation && c){ |
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prev->c_ = std::move( c); |
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context::active()->schedule( ready_ctx); |
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+ return boost::context::continuation{};
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}); |
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} |
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@@ -218,6 +221,7 @@ context::suspend_with_cc() noexcept {
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// pass pointer to the context that resumes `this` |
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return c_.resume_with([prev](boost::context::continuation && c){ |
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prev->c_ = std::move( c); |
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+ return boost::context::continuation{};
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}); |
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} |
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