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kicad/kicad-boost-1_61-boost-context-changes.patch

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From 06d4894fdbeb00727cdcc667b8899ad73d8eb1c2 Mon Sep 17 00:00:00 2001
From: Michael Steinberg <michsteinb@gmail.com>
Date: Tue, 5 Jul 2016 00:14:32 +0200
Subject: boost::context fixes to make it compatible with boost 1.61
Index: common/tool/tool_manager.cpp
===================================================================
--- common/tool/tool_manager.cpp.orig
+++ common/tool/tool_manager.cpp
@@ -528,7 +528,7 @@ void TOOL_MANAGER::dispatchInternal( con
}
}
- BOOST_FOREACH( TOOL_STATE* st, m_toolState | boost::adaptors::map_values )
+ BOOST_FOREACH( TOOL_STATE* st, ( m_toolState | boost::adaptors::map_values ) )
{
// no state handler in progress - check if there are any transitions (defined by
// Go() method that match the event.
@@ -542,11 +542,11 @@ void TOOL_MANAGER::dispatchInternal( con
if( st->cofunc )
st->Push();
+ st->cofunc = new COROUTINE<int, const TOOL_EVENT&>( tr.second );
+
// as the state changes, the transition table has to be set up again
st->transitions.clear();
- st->cofunc = new COROUTINE<int, const TOOL_EVENT&>( tr.second );
-
// got match? Run the handler.
st->cofunc->Call( aEvent );
Index: include/tool/coroutine.h
===================================================================
--- include/tool/coroutine.h.orig
+++ include/tool/coroutine.h
@@ -3,6 +3,7 @@
*
* Copyright (C) 2013 CERN
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
+ * Copyright (C) 2016 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -27,10 +28,53 @@
#include <cstdlib>
-#include <boost/context/fcontext.hpp>
#include <boost/version.hpp>
+#include <type_traits>
-#include "delegate.h"
+#if BOOST_VERSION < 106100
+#include <boost/context/fcontext.hpp>
+#else
+#include <boost/context/execution_context.hpp>
+#include <boost/context/protected_fixedsize_stack.hpp>
+#endif
+
+/**
+ * Note: in the history of boost, two changes to the context interface happened.
+ * [1.54, 1.56)
+ * http://www.boost.org/doc/libs/1_55_0/libs/context/doc/html/context/context/boost_fcontext.html
+ * intptr_t jump_fcontext(
+ * fcontext_t* ofc,
+ * fcontext_t const* nfc,
+ * intptr_t vp,
+ * bool preserve_fpu = true
+ * );
+ *
+ * fcontext_t* make_fcontext(
+ * void* sp,
+ * std::size_t size,
+ * void (*fn)(intptr_t)
+ * );
+ *
+ * [1.56, 1.61)
+ * http://www.boost.org/doc/libs/1_56_0/libs/context/doc/html/context/context/boost_fcontext.html
+ * intptr_t jump_fcontext(
+ * fcontext_t* ofc,
+ * fcontext_t nfc, <-----
+ * intptr_t vp,
+ * bool preserve_fpu = true
+ * );
+ *
+ * fcontext_t make_fcontext( <-----
+ * void* sp,
+ * std::size_t size,
+ * void(*fn)(intptr_t)
+ * );
+ *
+ * [1.61, oo)
+ * http://www.boost.org/doc/libs/1_61_0/libs/context/doc/html/context/ecv2.html
+ * fcontext_t is hidden away behind the boost::execution_context(_v2) and the stack is created on behalf of
+ * the user.
+ */
/**
* Class COROUNTINE.
@@ -53,13 +97,12 @@
* See coroutine_example.cpp for sample code.
*/
-template <class ReturnType, class ArgType>
+template <typename ReturnType, typename ArgType>
class COROUTINE
{
public:
COROUTINE() :
- m_saved( NULL ), m_self( NULL ), m_stack( NULL ), m_stackSize( c_defaultStackSize ),
- m_running( false )
+ COROUTINE( nullptr )
{
}
@@ -68,9 +111,8 @@ public:
* Creates a coroutine from a member method of an object
*/
template <class T>
- COROUTINE( T* object, ReturnType(T::* ptr)( ArgType ) ) :
- m_func( object, ptr ), m_self( NULL ), m_saved( NULL ), m_stack( NULL ),
- m_stackSize( c_defaultStackSize ), m_running( false )
+ COROUTINE( T* object, ReturnType(T::*ptr)( ArgType ) ) :
+ COROUTINE( std::bind( ptr, object, std::placeholders::_1 ) )
{
}
@@ -78,29 +120,29 @@ public:
* Constructor
* Creates a coroutine from a delegate object
*/
- COROUTINE( DELEGATE<ReturnType, ArgType> aEntry ) :
- m_func( aEntry ), m_saved( NULL ), m_self( NULL ), m_stack( NULL ),
- m_stackSize( c_defaultStackSize ), m_running( false )
- {
- // Avoid not initialized members, and make static analysers quiet
- m_args = 0;
- m_retVal = 0;
+ COROUTINE( std::function<ReturnType(ArgType)> aEntry ) :
+ m_func( std::move( aEntry ) ),
+ m_running( false ),
+ m_args( 0 ),
+#if BOOST_VERSION < 106100 // -> m_callee = void* or void**
+ m_callee( nullptr ),
+#endif
+ m_retVal( 0 )
+ {
}
~COROUTINE()
{
- if( m_saved )
- delete m_saved;
+ }
-#if BOOST_VERSION >= 105600
- if( m_self )
- delete m_self;
+private:
+#if BOOST_VERSION < 106100
+ using context_type = boost::context::fcontext_t;
+#else
+ using context_type = boost::context::execution_context<COROUTINE*>;
#endif
- if( m_stack )
- free( m_stack );
- }
-
+public:
/**
* Function Yield()
*
@@ -110,7 +152,7 @@ public:
*/
void Yield()
{
- jump( m_self, m_saved, 0 );
+ jumpOut();
}
/**
@@ -122,7 +164,20 @@ public:
void Yield( ReturnType& aRetVal )
{
m_retVal = aRetVal;
- jump( m_self, m_saved, 0 );
+ jumpOut();
+ }
+
+ /**
+ * Function Resume()
+ *
+ * Resumes execution of a previously yielded coroutine.
+ * @return true, if the coroutine has yielded again and false if it has finished its
+ * execution (returned).
+ */
+ bool Resume()
+ {
+ jumpIn();
+ return m_running;
}
/**
@@ -130,9 +185,9 @@ public:
*
* Defines the entry point for the coroutine, if not set in the constructor.
*/
- void SetEntry( DELEGATE<ReturnType, ArgType> aEntry )
+ void SetEntry( std::function<ReturnType(ArgType)> aEntry )
{
- m_func = aEntry;
+ m_func = std::move( aEntry );
}
/* Function Call()
@@ -143,43 +198,37 @@ public:
*/
bool Call( ArgType aArgs )
{
+ assert( m_func );
+ assert( !m_callee );
+
+ m_args = &aArgs;
+
+#if BOOST_VERSION < 106100
+ assert( m_stack == nullptr );
+
// fixme: Clean up stack stuff. Add a guard
- m_stack = malloc( c_defaultStackSize );
+ size_t stackSize = c_defaultStackSize;
+ m_stack.reset( new char[stackSize] );
// align to 16 bytes
- void* sp = (void*) ( ( ( (ptrdiff_t) m_stack ) + m_stackSize - 0xf ) & ( ~0x0f ) );
+ void* sp = (void*) ( ( ( (ptrdiff_t) m_stack.get() ) + stackSize - 0xf ) & ( ~0x0f ) );
// correct the stack size
- m_stackSize -= ( (size_t) m_stack + m_stackSize - (size_t) sp );
-
- assert( m_self == NULL );
- assert( m_saved == NULL );
+ stackSize -= size_t( ( (ptrdiff_t) m_stack.get() + stackSize) - (ptrdiff_t) sp );
- m_args = &aArgs;
-#if BOOST_VERSION >= 105600
- m_self = new boost::context::fcontext_t();
- *m_self = boost::context::make_fcontext( sp, m_stackSize, callerStub );
+ m_callee = boost::context::make_fcontext( sp, stackSize, callerStub );
#else
- m_self = boost::context::make_fcontext( sp, m_stackSize, callerStub );
+ m_callee = context_type(
+ std::allocator_arg_t(),
+ boost::context::protected_fixedsize_stack( c_defaultStackSize ),
+ &COROUTINE::callerStub
+ );
#endif
- m_saved = new boost::context::fcontext_t();
m_running = true;
- // off we go!
- jump( m_saved, m_self, reinterpret_cast<intptr_t>( this ) );
- return m_running;
- }
- /**
- * Function Resume()
- *
- * Resumes execution of a previously yielded coroutine.
- * @return true, if the coroutine has yielded again and false if it has finished its
- * execution (returned).
- */
- bool Resume()
- {
- jump( m_saved, m_self, 0 );
+ // off we go!
+ jumpIn();
return m_running;
}
@@ -208,61 +257,82 @@ private:
static const int c_defaultStackSize = 2000000; // fixme: make configurable
/* real entry point of the coroutine */
+#if BOOST_VERSION < 106100
static void callerStub( intptr_t aData )
{
// get pointer to self
- COROUTINE<ReturnType, ArgType>* cor = reinterpret_cast<COROUTINE<ReturnType, ArgType>*>( aData );
+ COROUTINE* cor = reinterpret_cast<COROUTINE*>( aData );
// call the coroutine method
- cor->m_retVal = cor->m_func( *cor->m_args );
+ cor->m_retVal = cor->m_func( *(cor->m_args) );
cor->m_running = false;
// go back to wherever we came from.
- jump( cor->m_self, cor->m_saved, 0 ); // reinterpret_cast<intptr_t>( this ));
+ cor->jumpOut();
}
+#else
+ /* real entry point of the coroutine */
+ static context_type callerStub( context_type caller, COROUTINE* cor )
+ {
+ cor->m_caller = std::move( caller );
+
+ // call the coroutine method
+ cor->m_retVal = cor->m_func( *(cor->m_args) );
+ cor->m_running = false;
+
+ // go back to wherever we came from.
+ return std::move( cor->m_caller );
+ }
+#endif
- ///> Wrapper for jump_fcontext to assure compatibility between different boost versions
- static inline intptr_t jump(boost::context::fcontext_t* aOld, boost::context::fcontext_t* aNew,
- intptr_t aP, bool aPreserveFPU = true )
+ void jumpIn()
{
-#if BOOST_VERSION >= 105600
- return boost::context::jump_fcontext( aOld, *aNew, aP, aPreserveFPU );
+#if BOOST_VERSION < 105600
+ boost::context::jump_fcontext( &m_caller, m_callee, reinterpret_cast<intptr_t>(this) );
+#elif BOOST_VERSION < 106100
+ boost::context::jump_fcontext( &m_caller, m_callee, reinterpret_cast<intptr_t>(this) );
#else
- return boost::context::jump_fcontext( aOld, aNew, aP, aPreserveFPU );
+ auto result = m_callee( this );
+ m_callee = std::move( std::get<0>( result ) );
#endif
}
- template <typename T>
- struct strip_ref
+ void jumpOut()
{
- typedef T result;
- };
+#if BOOST_VERSION < 105600
+ boost::context::jump_fcontext( m_callee, &m_caller, 0 );
+#elif BOOST_VERSION < 106100
+ boost::context::jump_fcontext( &m_callee, m_caller, 0 );
+#else
+ auto result = m_caller( nullptr );
+ m_caller = std::move( std::get<0>( result ) );
+#endif
+ }
- template <typename T>
- struct strip_ref<T&>
- {
- typedef T result;
- };
+ std::function<ReturnType(ArgType)> m_func;
- DELEGATE<ReturnType, ArgType> m_func;
+ bool m_running;
+
+#if BOOST_VERSION < 106100
+ ///< coroutine stack
+ std::unique_ptr<char[]> m_stack;
+#endif
///< pointer to coroutine entry arguments. Stripped of references
///< to avoid compiler errors.
- typename strip_ref<ArgType>::result* m_args;
- ReturnType m_retVal;
+ typename std::remove_reference<ArgType>::type* m_args;
///< saved caller context
- boost::context::fcontext_t* m_saved;
+ context_type m_caller;
///< saved coroutine context
- boost::context::fcontext_t* m_self;
-
- ///< coroutine stack
- void* m_stack;
-
- size_t m_stackSize;
+#if BOOST_VERSION < 105600
+ context_type* m_callee;
+#else
+ context_type m_callee;
+#endif
- bool m_running;
+ ReturnType m_retVal;
};
#endif
Index: include/tool/tool_base.h
===================================================================
--- include/tool/tool_base.h.orig
+++ include/tool/tool_base.h
@@ -3,6 +3,7 @@
*
* Copyright (C) 2013 CERN
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
+ * Copyright (C) 2016 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -31,7 +32,7 @@
#include <tool/tool_event.h>
#include <tool/tool_settings.h>
-#include <tool/delegate.h>
+#include <functional>
class EDA_ITEM;
class TOOL_MANAGER;
@@ -53,7 +54,9 @@ enum TOOL_TYPE
/// Unique identifier for tools
typedef int TOOL_ID;
-typedef DELEGATE<int, const TOOL_EVENT&> TOOL_STATE_FUNC;
+
+using TOOL_STATE_FUNC = std::function<int(const TOOL_EVENT&)>;
+
/**
* Class TOOL_BASE
Index: include/tool/tool_interactive.h
===================================================================
--- include/tool/tool_interactive.h.orig
+++ include/tool/tool_interactive.h
@@ -3,6 +3,7 @@
*
* Copyright (C) 2013 CERN
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
+ * Copyright (C) 2016 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -113,7 +114,7 @@ template <class T>
void TOOL_INTERACTIVE::Go( int (T::* aStateFunc)( const TOOL_EVENT& ),
const TOOL_EVENT_LIST& aConditions )
{
- TOOL_STATE_FUNC sptr( static_cast<T*>( this ), aStateFunc );
+ TOOL_STATE_FUNC sptr = std::bind( aStateFunc, static_cast<T*>( this ), std::placeholders::_1 );
goInternal( sptr, aConditions );
}
Index: include/tool/delegate.h
===================================================================
--- include/tool/delegate.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * This program source code file is part of KiCad, a free EDA CAD application.
- *
- * Copyright (C) 2013 CERN
- * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, you may find one here:
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- * or you may search the http://www.gnu.org website for the version 2 license,
- * or you may write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
- */
-
-#ifndef __DELEGATE_H
-#define __DELEGATE_H
-
-
-/**
- * class DELEGATE
- * A trivial delegate (pointer to member method of an object) pattern implementation.
- * Check delegate_example.cpp for a coding sample.
- */
-
-template <class ReturnType, class Arg>
-class DELEGATE
-{
-public:
- typedef ReturnType (DELEGATE<ReturnType, Arg>::* MemberPointer)( Arg );
- typedef ReturnType _ReturnType;
- typedef Arg _ArgType;
-
- DELEGATE()
- {
- }
-
- template <class T>
- DELEGATE( T* aObject, ReturnType(T::* aPtr)( Arg ) )
- {
- m_ptr = reinterpret_cast<MemberPointer>( aPtr );
- m_object = reinterpret_cast<void*>( aObject );
- };
-
-
- ReturnType operator()( Arg aA ) const
- {
- DELEGATE<ReturnType, Arg>* casted = reinterpret_cast<DELEGATE<ReturnType, Arg>*>( m_object );
- return (casted->*m_ptr)( aA );
- }
-
-private:
- MemberPointer m_ptr;
- void* m_object;
-};
-
-/**
- * Class DELEGATE0
- * Same as DELEGATE, but with no arguments.
- */
-template <class ReturnType>
-class DELEGATE0
-{
-public:
- typedef ReturnType ( DELEGATE0<ReturnType>::* MemberPointer )();
- typedef ReturnType _ReturnType;
-
- DELEGATE0()
- {
- }
-
- template <class T>
- DELEGATE0( T* aObject, ReturnType(T::* aPtr)() )
- {
- m_ptr = reinterpret_cast<MemberPointer>( aPtr );
- m_object = reinterpret_cast<void*>( aObject );
- };
-
-
- ReturnType operator()() const
- {
- DELEGATE0<ReturnType>* casted = reinterpret_cast<DELEGATE0<ReturnType>*>( m_object );
- return ( casted->*m_ptr )();
- }
-
-private:
- MemberPointer m_ptr;
- void* m_object;
-};
-
-#endif
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