From: wolf Date: Tue, 18 Jan 2000 15:17:35 +0000 (+0000) Subject: Add support for void member functions (as opposed to void* return X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b303e40945ee55ffc93d26cef372f146a1a56e68;p=dealii-svn.git Add support for void member functions (as opposed to void* return values), at least for Mem_Fun_Data[1234]. git-svn-id: https://svn.dealii.org/trunk@2249 0785d39b-7218-0410-832d-ea1e28bc413d --- diff --git a/deal.II/base/Todo b/deal.II/base/Todo index 11739b7fcb..817ba51f2e 100644 --- a/deal.II/base/Todo +++ b/deal.II/base/Todo @@ -34,3 +34,5 @@ Change to in grid/point.h and grid/tria_iterator.h when this becomes possible. +Add support for void member functions also for Mem_Fun_Data[5-*] and + Mem_Fun*. diff --git a/deal.II/base/include/base/thread_manager.h b/deal.II/base/include/base/thread_manager.h index 8466baa17e..fdc8a601ba 100644 --- a/deal.II/base/include/base/thread_manager.h +++ b/deal.II/base/include/base/thread_manager.h @@ -253,7 +253,21 @@ * \end{verbatim} * * Note that in this example, there is no need for the #thread_entry# - * function and the structure encapsulating parameters. + * function and the structure encapsulating parameters. Often, + * functions will not have a return value, i.e. their return type is + * #void#. In this case, the interface above would force us to declare + * them as returning a #void*# anyway. Therefore, this class also + * allows for functions without a return type; a Null pointer will + * then be returned to the caller. + * + * Usage is exactly as above, but that the #threaded_function# may + * also be a #void# function. This is done by a second constructor of + * the #Mem_Fun_Data# structures, where either a pointer to a #void# + * function or a pointer to a #void*# function is set. The other + * pointer is always set to zero. If the function returns no value, + * then the #thread_entry# function of this class returns a Null + * pointer instead. + * * * \subsection{Using this class on global functions} * @@ -287,7 +301,7 @@ * thread_manager.wait (); * }; * \end{verbatim} - * @author Wolfgang Bangerth, 1999 + * @author Wolfgang Bangerth, 1999, 2000. Extensions by Thomas Richter, 2000 */ class ThreadManager : public ACE_Thread_Manager { @@ -313,11 +327,26 @@ class ThreadManager : public ACE_Thread_Manager struct Mem_Fun_Data1 { /** - * Convenience #typedef# for the - * member functions data type. + * Convenience #typedef# for + * the member functions data + * type. This is for member + * functions that return a + * #void *#, which is + * returned to the caller. */ typedef void * (Class::*MemFun) (Arg); + /** + * Convenience #typedef# for + * the member functions data + * type. This is for member + * functions without return + * value. A #(void*)0# is + * then returned to the + * caller. + */ + typedef void (Class::*VoidMemFun) (Arg); + /** * Pointer to the object for which * the member function is to be @@ -331,16 +360,47 @@ class ThreadManager : public ACE_Thread_Manager Arg arg; /** - * Pointer to the member function. + * Pointer to the member + * function if that returns a + * #void*#. If the function + * has no return value, then + * this pointer is zero. */ - MemFun mem_fun; + MemFun mem_fun; + /** + * If the function has no + * return value, then this + * pointer is used. If the + * function has a return + * value, then this pointer + * is zero. + */ + VoidMemFun void_mem_fun; + + /** + * Constructor for functions + * with a return value. + */ Mem_Fun_Data1 (Class *object, Arg arg, MemFun mem_fun) : object (object), arg (arg), - mem_fun (mem_fun) {}; + mem_fun (mem_fun), + void_mem_fun (0) {}; + + /** + * Constructor for functions + * without a return value. + */ + Mem_Fun_Data1 (Class *object, + Arg arg, + VoidMemFun void_mem_fun) : + object (object), + arg (arg), + mem_fun (0), + void_mem_fun (void_mem_fun) {}; }; /** @@ -358,10 +418,15 @@ class ThreadManager : public ACE_Thread_Manager struct Mem_Fun_Data2 { typedef void * (Class::*MemFun) (Arg1, Arg2); - Class *object; - Arg1 arg1; - Arg2 arg2; - MemFun mem_fun; + + typedef void (Class::*VoidMemFun) (Arg1, Arg2); + + Class *object; + Arg1 arg1; + Arg2 arg2; + + MemFun mem_fun; + VoidMemFun void_mem_fun; Mem_Fun_Data2 (Class *object, Arg1 arg1, @@ -370,7 +435,18 @@ class ThreadManager : public ACE_Thread_Manager object (object), arg1 (arg1), arg2 (arg2), - mem_fun (mem_fun) {}; + mem_fun (mem_fun), + void_mem_fun (0) {}; + + Mem_Fun_Data2 (Class *object, + Arg1 arg1, + Arg2 arg2, + VoidMemFun void_mem_fun) : + object (object), + arg1 (arg1), + arg2 (arg2), + mem_fun (0), + void_mem_fun (void_mem_fun) {}; }; @@ -389,11 +465,14 @@ class ThreadManager : public ACE_Thread_Manager struct Mem_Fun_Data3 { typedef void * (Class::*MemFun) (Arg1, Arg2, Arg3); - Class *object; - Arg1 arg1; - Arg2 arg2; - Arg3 arg3; - MemFun mem_fun; + typedef void (Class::*VoidMemFun) (Arg1, Arg2, Arg3); + + Class *object; + Arg1 arg1; + Arg2 arg2; + Arg3 arg3; + MemFun mem_fun; + VoidMemFun void_mem_fun; Mem_Fun_Data3 (Class *object, Arg1 arg1, @@ -404,7 +483,20 @@ class ThreadManager : public ACE_Thread_Manager arg1 (arg1), arg2 (arg2), arg3 (arg3), - mem_fun (mem_fun) {}; + mem_fun (mem_fun), + void_mem_fun (0) {}; + + Mem_Fun_Data3 (Class *object, + Arg1 arg1, + Arg2 arg2, + Arg3 arg3, + VoidMemFun void_mem_fun) : + object (object), + arg1 (arg1), + arg2 (arg2), + arg3 (arg3), + mem_fun (0), + void_mem_fun (void_mem_fun) {}; }; @@ -425,12 +517,15 @@ class ThreadManager : public ACE_Thread_Manager struct Mem_Fun_Data4 { typedef void * (Class::*MemFun) (Arg1, Arg2, Arg3, Arg4); - Class *object; - Arg1 arg1; - Arg2 arg2; - Arg3 arg3; - Arg4 arg4; - MemFun mem_fun; + typedef void (Class::*VoidMemFun) (Arg1, Arg2, Arg3, Arg4); + + Class *object; + Arg1 arg1; + Arg2 arg2; + Arg3 arg3; + Arg4 arg4; + MemFun mem_fun; + VoidMemFun void_mem_fun; Mem_Fun_Data4 (Class *object, Arg1 arg1, @@ -443,7 +538,22 @@ class ThreadManager : public ACE_Thread_Manager arg2 (arg2), arg3 (arg3), arg4 (arg4), - mem_fun (mem_fun) {}; + mem_fun (mem_fun), + void_mem_fun (0) {}; + + Mem_Fun_Data4 (Class *object, + Arg1 arg1, + Arg2 arg2, + Arg3 arg3, + Arg4 arg4, + VoidMemFun void_mem_fun) : + object (object), + arg1 (arg1), + arg2 (arg2), + arg3 (arg3), + arg4 (arg4), + mem_fun (0), + void_mem_fun (void_mem_fun) {}; }; /** @@ -2122,7 +2232,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with one parameters. */ - template < typename Arg1> + template static void * thread_entry_point_1 (void *_arg); /** @@ -2132,7 +2242,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with two parameters. */ - template < typename Arg1, typename Arg2> + template static void * thread_entry_point_2 (void *_arg); /** @@ -2142,7 +2252,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with three parameters. */ - template < typename Arg1, typename Arg2, + template static void * thread_entry_point_3 (void *_arg); @@ -2153,7 +2263,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with four parameters. */ - template < typename Arg1, typename Arg2, + template static void * thread_entry_point_4 (void *_arg); @@ -2164,7 +2274,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with five parameters. */ - template < typename Arg1, typename Arg2, + template static void * thread_entry_point_5 (void *_arg); @@ -2176,7 +2286,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with six parameters. */ - template < typename Arg1, typename Arg2, + template static void * thread_entry_point_6 (void *_arg); @@ -2188,7 +2298,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with seven parameters. */ - template < typename Arg1, typename Arg2, + template @@ -2201,7 +2311,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with eight parameters. */ - template < typename Arg1, typename Arg2, + template @@ -2214,7 +2324,7 @@ class ThreadManager : public ACE_Thread_Manager * information necessary to call a * member function with nine parameters. */ - template < typename Arg1, typename Arg2, + template object->*(arg->mem_fun))(arg->arg); + if (arg->mem_fun != 0) + return (arg->object->*(arg->mem_fun))(arg->arg); + else + { + (arg->object->*(arg->void_mem_fun))(arg->arg); + return 0; + }; }; @@ -3322,7 +3438,13 @@ void * ThreadManager::thread_entry_point2 (void *_arg) // extract function pointer, object // and argument and dispatch the // call - return (arg->object->*(arg->mem_fun))(arg->arg1, arg->arg2); + if (arg->mem_fun != 0) + return (arg->object->*(arg->mem_fun))(arg->arg1, arg->arg2); + else + { + (arg->object->*(arg->void_mem_fun))(arg->arg1, arg->arg2); + return 0; + }; }; @@ -3340,9 +3462,17 @@ void * ThreadManager::thread_entry_point3 (void *_arg) // extract function pointer, object // and argument and dispatch the // call - return (arg->object->*(arg->mem_fun))(arg->arg1, - arg->arg2, - arg->arg3); + if (arg->mem_fun != 0) + return (arg->object->*(arg->mem_fun))(arg->arg1, + arg->arg2, + arg->arg3); + else + { + (arg->object->*(arg->void_mem_fun))(arg->arg1, + arg->arg2, + arg->arg3); + return 0; + }; }; @@ -3360,10 +3490,19 @@ void * ThreadManager::thread_entry_point4 (void *_arg) // extract function pointer, object // and argument and dispatch the // call - return (arg->object->*(arg->mem_fun))(arg->arg1, - arg->arg2, - arg->arg3, - arg->arg4); + if (arg->mem_fun != 0) + return (arg->object->*(arg->mem_fun))(arg->arg1, + arg->arg2, + arg->arg3, + arg->arg4); + else + { + (arg->object->*(arg->void_mem_fun))(arg->arg1, + arg->arg2, + arg->arg3, + arg->arg4); + return 0; + }; };