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authorTobias Markmann <tm@ayena.de>2016-04-05 13:17:19 (GMT)
committerTobias Markmann <tm@ayena.de>2016-04-05 19:42:39 (GMT)
commit2b560b129b7a31fc8cc07f618e763c95a22bf832 (patch)
tree73e72cdc758b79d01485dc28dcedd48b26859ae8 /3rdParty/Boost/src/boost/multi_index/detail/scope_guard.hpp
parent3c560e31b0f168da917e8d566db01fd1cd997d86 (diff)
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Migrate to Boost.Signals2 from Boost.Signals
Boost.Signals was deprecated and is not improved further. This patch removes Boost.Signals from 3rdParty and adds Boost.Signals2 and its dependencies. Also removed the Qt signals compatibility file Swiften/Base/boost_bsignals.h. Test-Information: Build and ran unit tests on OS X 10.11.4. Confirmed successful login using Swift client. Change-Id: Ie6e3b2d15aac2462cda95401582f5287a479fb54
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+/* Copyright 2003-2013 Joaquin M Lopez Munoz.
+ * 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/multi_index for library home page.
+ */
+
+#ifndef BOOST_MULTI_INDEX_DETAIL_SCOPE_GUARD_HPP
+#define BOOST_MULTI_INDEX_DETAIL_SCOPE_GUARD_HPP
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/detail/no_exceptions_support.hpp>
+#include <boost/mpl/if.hpp>
+
+namespace boost{
+
+namespace multi_index{
+
+namespace detail{
+
+/* Until some official version of the ScopeGuard idiom makes it into Boost,
+ * we locally define our own. This is a merely reformated version of
+ * ScopeGuard.h as defined in:
+ * Alexandrescu, A., Marginean, P.:"Generic<Programming>: Change the Way You
+ * Write Exception-Safe Code - Forever", C/C++ Users Jornal, Dec 2000,
+ * http://www.drdobbs.com/184403758
+ * with the following modifications:
+ * - General pretty formatting (pretty to my taste at least.)
+ * - Naming style changed to standard C++ library requirements.
+ * - Added scope_guard_impl4 and obj_scope_guard_impl3, (Boost.MultiIndex
+ * needs them). A better design would provide guards for many more
+ * arguments through the Boost Preprocessor Library.
+ * - Added scope_guard_impl_base::touch (see below.)
+ * - Removed RefHolder and ByRef, whose functionality is provided
+ * already by Boost.Ref.
+ * - Removed static make_guard's and make_obj_guard's, so that the code
+ * will work even if BOOST_NO_MEMBER_TEMPLATES is defined. This forces
+ * us to move some private ctors to public, though.
+ *
+ * NB: CodeWarrior Pro 8 seems to have problems looking up safe_execute
+ * without an explicit qualification.
+ *
+ * We also define the following variants of the idiom:
+ *
+ * - make_guard_if_c<bool>( ... )
+ * - make_guard_if<IntegralConstant>( ... )
+ * - make_obj_guard_if_c<bool>( ... )
+ * - make_obj_guard_if<IntegralConstant>( ... )
+ * which may be used with a compile-time constant to yield
+ * a "null_guard" if the boolean compile-time parameter is false,
+ * or conversely, the guard is only constructed if the constant is true.
+ * This is useful to avoid extra tagging, because the returned
+ * null_guard can be optimzed comlpetely away by the compiler.
+ */
+
+class scope_guard_impl_base
+{
+public:
+ scope_guard_impl_base():dismissed_(false){}
+ void dismiss()const{dismissed_=true;}
+
+ /* This helps prevent some "unused variable" warnings under, for instance,
+ * GCC 3.2.
+ */
+ void touch()const{}
+
+protected:
+ ~scope_guard_impl_base(){}
+
+ scope_guard_impl_base(const scope_guard_impl_base& other):
+ dismissed_(other.dismissed_)
+ {
+ other.dismiss();
+ }
+
+ template<typename J>
+ static void safe_execute(J& j){
+ BOOST_TRY{
+ if(!j.dismissed_)j.execute();
+ }
+ BOOST_CATCH(...){}
+ BOOST_CATCH_END
+ }
+
+ mutable bool dismissed_;
+
+private:
+ scope_guard_impl_base& operator=(const scope_guard_impl_base&);
+};
+
+typedef const scope_guard_impl_base& scope_guard;
+
+struct null_guard : public scope_guard_impl_base
+{
+ template< class T1 >
+ null_guard( const T1& )
+ { }
+
+ template< class T1, class T2 >
+ null_guard( const T1&, const T2& )
+ { }
+
+ template< class T1, class T2, class T3 >
+ null_guard( const T1&, const T2&, const T3& )
+ { }
+
+ template< class T1, class T2, class T3, class T4 >
+ null_guard( const T1&, const T2&, const T3&, const T4& )
+ { }
+
+ template< class T1, class T2, class T3, class T4, class T5 >
+ null_guard( const T1&, const T2&, const T3&, const T4&, const T5& )
+ { }
+};
+
+template< bool cond, class T >
+struct null_guard_return
+{
+ typedef typename boost::mpl::if_c<cond,T,null_guard>::type type;
+};
+
+template<typename F>
+class scope_guard_impl0:public scope_guard_impl_base
+{
+public:
+ scope_guard_impl0(F fun):fun_(fun){}
+ ~scope_guard_impl0(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){fun_();}
+
+protected:
+
+ F fun_;
+};
+
+template<typename F>
+inline scope_guard_impl0<F> make_guard(F fun)
+{
+ return scope_guard_impl0<F>(fun);
+}
+
+template<bool cond, typename F>
+inline typename null_guard_return<cond,scope_guard_impl0<F> >::type
+make_guard_if_c(F fun)
+{
+ return typename null_guard_return<cond,scope_guard_impl0<F> >::type(fun);
+}
+
+template<typename C, typename F>
+inline typename null_guard_return<C::value,scope_guard_impl0<F> >::type
+make_guard_if(F fun)
+{
+ return make_guard_if<C::value>(fun);
+}
+
+template<typename F,typename P1>
+class scope_guard_impl1:public scope_guard_impl_base
+{
+public:
+ scope_guard_impl1(F fun,P1 p1):fun_(fun),p1_(p1){}
+ ~scope_guard_impl1(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){fun_(p1_);}
+
+protected:
+ F fun_;
+ const P1 p1_;
+};
+
+template<typename F,typename P1>
+inline scope_guard_impl1<F,P1> make_guard(F fun,P1 p1)
+{
+ return scope_guard_impl1<F,P1>(fun,p1);
+}
+
+template<bool cond, typename F,typename P1>
+inline typename null_guard_return<cond,scope_guard_impl1<F,P1> >::type
+make_guard_if_c(F fun,P1 p1)
+{
+ return typename null_guard_return<cond,scope_guard_impl1<F,P1> >::type(fun,p1);
+}
+
+template<typename C, typename F,typename P1>
+inline typename null_guard_return<C::value,scope_guard_impl1<F,P1> >::type
+make_guard_if(F fun,P1 p1)
+{
+ return make_guard_if_c<C::value>(fun,p1);
+}
+
+template<typename F,typename P1,typename P2>
+class scope_guard_impl2:public scope_guard_impl_base
+{
+public:
+ scope_guard_impl2(F fun,P1 p1,P2 p2):fun_(fun),p1_(p1),p2_(p2){}
+ ~scope_guard_impl2(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){fun_(p1_,p2_);}
+
+protected:
+ F fun_;
+ const P1 p1_;
+ const P2 p2_;
+};
+
+template<typename F,typename P1,typename P2>
+inline scope_guard_impl2<F,P1,P2> make_guard(F fun,P1 p1,P2 p2)
+{
+ return scope_guard_impl2<F,P1,P2>(fun,p1,p2);
+}
+
+template<bool cond, typename F,typename P1,typename P2>
+inline typename null_guard_return<cond,scope_guard_impl2<F,P1,P2> >::type
+make_guard_if_c(F fun,P1 p1,P2 p2)
+{
+ return typename null_guard_return<cond,scope_guard_impl2<F,P1,P2> >::type(fun,p1,p2);
+}
+
+template<typename C, typename F,typename P1,typename P2>
+inline typename null_guard_return<C::value,scope_guard_impl2<F,P1,P2> >::type
+make_guard_if(F fun,P1 p1,P2 p2)
+{
+ return make_guard_if_c<C::value>(fun,p1,p2);
+}
+
+template<typename F,typename P1,typename P2,typename P3>
+class scope_guard_impl3:public scope_guard_impl_base
+{
+public:
+ scope_guard_impl3(F fun,P1 p1,P2 p2,P3 p3):fun_(fun),p1_(p1),p2_(p2),p3_(p3){}
+ ~scope_guard_impl3(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){fun_(p1_,p2_,p3_);}
+
+protected:
+ F fun_;
+ const P1 p1_;
+ const P2 p2_;
+ const P3 p3_;
+};
+
+template<typename F,typename P1,typename P2,typename P3>
+inline scope_guard_impl3<F,P1,P2,P3> make_guard(F fun,P1 p1,P2 p2,P3 p3)
+{
+ return scope_guard_impl3<F,P1,P2,P3>(fun,p1,p2,p3);
+}
+
+template<bool cond,typename F,typename P1,typename P2,typename P3>
+inline typename null_guard_return<cond,scope_guard_impl3<F,P1,P2,P3> >::type
+make_guard_if_c(F fun,P1 p1,P2 p2,P3 p3)
+{
+ return typename null_guard_return<cond,scope_guard_impl3<F,P1,P2,P3> >::type(fun,p1,p2,p3);
+}
+
+template<typename C,typename F,typename P1,typename P2,typename P3>
+inline typename null_guard_return< C::value,scope_guard_impl3<F,P1,P2,P3> >::type
+make_guard_if(F fun,P1 p1,P2 p2,P3 p3)
+{
+ return make_guard_if_c<C::value>(fun,p1,p2,p3);
+}
+
+template<typename F,typename P1,typename P2,typename P3,typename P4>
+class scope_guard_impl4:public scope_guard_impl_base
+{
+public:
+ scope_guard_impl4(F fun,P1 p1,P2 p2,P3 p3,P4 p4):
+ fun_(fun),p1_(p1),p2_(p2),p3_(p3),p4_(p4){}
+ ~scope_guard_impl4(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){fun_(p1_,p2_,p3_,p4_);}
+
+protected:
+ F fun_;
+ const P1 p1_;
+ const P2 p2_;
+ const P3 p3_;
+ const P4 p4_;
+};
+
+template<typename F,typename P1,typename P2,typename P3,typename P4>
+inline scope_guard_impl4<F,P1,P2,P3,P4> make_guard(
+ F fun,P1 p1,P2 p2,P3 p3,P4 p4)
+{
+ return scope_guard_impl4<F,P1,P2,P3,P4>(fun,p1,p2,p3,p4);
+}
+
+template<bool cond, typename F,typename P1,typename P2,typename P3,typename P4>
+inline typename null_guard_return<cond,scope_guard_impl4<F,P1,P2,P3,P4> >::type
+make_guard_if_c(
+ F fun,P1 p1,P2 p2,P3 p3,P4 p4)
+{
+ return typename null_guard_return<cond,scope_guard_impl4<F,P1,P2,P3,P4> >::type(fun,p1,p2,p3,p4);
+}
+
+template<typename C, typename F,typename P1,typename P2,typename P3,typename P4>
+inline typename null_guard_return<C::value,scope_guard_impl4<F,P1,P2,P3,P4> >::type
+make_guard_if(
+ F fun,P1 p1,P2 p2,P3 p3,P4 p4)
+{
+ return make_guard_if_c<C::value>(fun,p1,p2,p3,p4);
+}
+
+template<class Obj,typename MemFun>
+class obj_scope_guard_impl0:public scope_guard_impl_base
+{
+public:
+ obj_scope_guard_impl0(Obj& obj,MemFun mem_fun):obj_(obj),mem_fun_(mem_fun){}
+ ~obj_scope_guard_impl0(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){(obj_.*mem_fun_)();}
+
+protected:
+ Obj& obj_;
+ MemFun mem_fun_;
+};
+
+template<class Obj,typename MemFun>
+inline obj_scope_guard_impl0<Obj,MemFun> make_obj_guard(Obj& obj,MemFun mem_fun)
+{
+ return obj_scope_guard_impl0<Obj,MemFun>(obj,mem_fun);
+}
+
+template<bool cond, class Obj,typename MemFun>
+inline typename null_guard_return<cond,obj_scope_guard_impl0<Obj,MemFun> >::type
+make_obj_guard_if_c(Obj& obj,MemFun mem_fun)
+{
+ return typename null_guard_return<cond,obj_scope_guard_impl0<Obj,MemFun> >::type(obj,mem_fun);
+}
+
+template<typename C, class Obj,typename MemFun>
+inline typename null_guard_return<C::value,obj_scope_guard_impl0<Obj,MemFun> >::type
+make_obj_guard_if(Obj& obj,MemFun mem_fun)
+{
+ return make_obj_guard_if_c<C::value>(obj,mem_fun);
+}
+
+template<class Obj,typename MemFun,typename P1>
+class obj_scope_guard_impl1:public scope_guard_impl_base
+{
+public:
+ obj_scope_guard_impl1(Obj& obj,MemFun mem_fun,P1 p1):
+ obj_(obj),mem_fun_(mem_fun),p1_(p1){}
+ ~obj_scope_guard_impl1(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){(obj_.*mem_fun_)(p1_);}
+
+protected:
+ Obj& obj_;
+ MemFun mem_fun_;
+ const P1 p1_;
+};
+
+template<class Obj,typename MemFun,typename P1>
+inline obj_scope_guard_impl1<Obj,MemFun,P1> make_obj_guard(
+ Obj& obj,MemFun mem_fun,P1 p1)
+{
+ return obj_scope_guard_impl1<Obj,MemFun,P1>(obj,mem_fun,p1);
+}
+
+template<bool cond, class Obj,typename MemFun,typename P1>
+inline typename null_guard_return<cond,obj_scope_guard_impl1<Obj,MemFun,P1> >::type
+make_obj_guard_if_c( Obj& obj,MemFun mem_fun,P1 p1)
+{
+ return typename null_guard_return<cond,obj_scope_guard_impl1<Obj,MemFun,P1> >::type(obj,mem_fun,p1);
+}
+
+template<typename C, class Obj,typename MemFun,typename P1>
+inline typename null_guard_return<C::value,obj_scope_guard_impl1<Obj,MemFun,P1> >::type
+make_obj_guard_if( Obj& obj,MemFun mem_fun,P1 p1)
+{
+ return make_obj_guard_if_c<C::value>(obj,mem_fun,p1);
+}
+
+template<class Obj,typename MemFun,typename P1,typename P2>
+class obj_scope_guard_impl2:public scope_guard_impl_base
+{
+public:
+ obj_scope_guard_impl2(Obj& obj,MemFun mem_fun,P1 p1,P2 p2):
+ obj_(obj),mem_fun_(mem_fun),p1_(p1),p2_(p2)
+ {}
+ ~obj_scope_guard_impl2(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){(obj_.*mem_fun_)(p1_,p2_);}
+
+protected:
+ Obj& obj_;
+ MemFun mem_fun_;
+ const P1 p1_;
+ const P2 p2_;
+};
+
+template<class Obj,typename MemFun,typename P1,typename P2>
+inline obj_scope_guard_impl2<Obj,MemFun,P1,P2>
+make_obj_guard(Obj& obj,MemFun mem_fun,P1 p1,P2 p2)
+{
+ return obj_scope_guard_impl2<Obj,MemFun,P1,P2>(obj,mem_fun,p1,p2);
+}
+
+template<bool cond, class Obj,typename MemFun,typename P1,typename P2>
+inline typename null_guard_return<cond,obj_scope_guard_impl2<Obj,MemFun,P1,P2> >::type
+make_obj_guard_if_c(Obj& obj,MemFun mem_fun,P1 p1,P2 p2)
+{
+ return typename null_guard_return<cond,obj_scope_guard_impl2<Obj,MemFun,P1,P2> >::type(obj,mem_fun,p1,p2);
+}
+
+template<typename C, class Obj,typename MemFun,typename P1,typename P2>
+inline typename null_guard_return<C::value,obj_scope_guard_impl2<Obj,MemFun,P1,P2> >::type
+make_obj_guard_if(Obj& obj,MemFun mem_fun,P1 p1,P2 p2)
+{
+ return make_obj_guard_if_c<C::value>(obj,mem_fun,p1,p2);
+}
+
+template<class Obj,typename MemFun,typename P1,typename P2,typename P3>
+class obj_scope_guard_impl3:public scope_guard_impl_base
+{
+public:
+ obj_scope_guard_impl3(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3):
+ obj_(obj),mem_fun_(mem_fun),p1_(p1),p2_(p2),p3_(p3)
+ {}
+ ~obj_scope_guard_impl3(){scope_guard_impl_base::safe_execute(*this);}
+ void execute(){(obj_.*mem_fun_)(p1_,p2_,p3_);}
+
+protected:
+ Obj& obj_;
+ MemFun mem_fun_;
+ const P1 p1_;
+ const P2 p2_;
+ const P3 p3_;
+};
+
+template<class Obj,typename MemFun,typename P1,typename P2,typename P3>
+inline obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3>
+make_obj_guard(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3)
+{
+ return obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3>(obj,mem_fun,p1,p2,p3);
+}
+
+template<bool cond, class Obj,typename MemFun,typename P1,typename P2,typename P3>
+inline typename null_guard_return<cond,obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3> >::type
+make_obj_guard_if_c(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3)
+{
+ return typename null_guard_return<cond,obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3> >::type(obj,mem_fun,p1,p2,p3);
+}
+
+template<typename C, class Obj,typename MemFun,typename P1,typename P2,typename P3>
+inline typename null_guard_return<C::value,obj_scope_guard_impl3<Obj,MemFun,P1,P2,P3> >::type
+make_obj_guard_if(Obj& obj,MemFun mem_fun,P1 p1,P2 p2,P3 p3)
+{
+ return make_obj_guard_if_c<C::value>(obj,mem_fun,p1,p2,p3);
+}
+
+} /* namespace multi_index::detail */
+
+} /* namespace multi_index */
+
+} /* namespace boost */
+
+#endif