]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
spawn wrappers for member functions with 7 args.
authorwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Thu, 16 Aug 2001 14:58:13 +0000 (14:58 +0000)
committerwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Thu, 16 Aug 2001 14:58:13 +0000 (14:58 +0000)
git-svn-id: https://svn.dealii.org/trunk@4895 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/base/include/base/thread_management.h

index f2af12e6c04a3cb044cfc5becae623b9aad003e4..dacd9ac5f7bf15cca4554fabe2d19defe7ae6973 100644 (file)
@@ -2713,6 +2713,165 @@ namespace Threads
       encapsulate (void (Class_::*fun_ptr)(Arg1_, Arg2_, Arg3_,
                                           Arg4_, Arg5_, Arg6_));
   };
+
+
+
+/**
+ * Class to store the parameters of a function with 7 arguments. For
+ * more information on use and internals of this class see the report
+ * on this subject.
+ *
+ * @author Wolfgang Bangerth, Ralf Hartmann, 2001
+ */
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  class MemFunData7 : public FunDataBase
+  {
+    public:
+                                      /**
+                                       * Typedef a pointer to a global
+                                       * function which we will call
+                                       * from this class.
+                                       */
+      typedef RetType (Class::*FunPtr) (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7);
+
+                                      /**
+                                       * Constructor. Store pointer to
+                                       * the function and the values of
+                                       * the arguments.
+                                       */
+      MemFunData7 (FunPtr fun_ptr,
+                  Class *object,
+                  Arg1   arg1,
+                  Arg2   arg2,
+                  Arg3   arg3,
+                  Arg4   arg4,
+                  Arg5   arg5,
+                  Arg6   arg6,
+                  Arg7   arg7);
+
+                                      /**
+                                       * Copy constructor.
+                                       */
+      MemFunData7 (const MemFunData7 &fun_data7);
+
+                                      /**
+                                       * Virtual constructor.
+                                       */
+      virtual FunDataBase * clone () const;
+
+    private:
+
+                                      /**
+                                       * Pointer to the function to be
+                                       * called and values of the
+                                       * arguments to be passed.
+                                       */
+      FunPtr fun_ptr;
+
+                                      /**
+                                       * Pointer to the object which
+                                       * we shall work on.
+                                       */
+      Class *object;
+                                      /**
+                                       * Values of the arguments of the
+                                       * function to be called.
+                                       */
+      Arg1   arg1;
+      Arg2   arg2;
+      Arg3   arg3;
+      Arg4   arg4;
+      Arg5   arg5;
+      Arg6   arg6;
+      Arg7   arg7;
+      
+                                      /**
+                                       * Static function used as entry
+                                       * point for the new thread.
+                                       */
+      static void * thread_entry_point (void *arg);
+
+                                      /**
+                                       * Helper class, used to collect
+                                       * the values of the parameters
+                                       * which we will pass to the
+                                       * function, once we know its
+                                       * type.
+                                       */
+      class ArgCollector
+      {
+       public:
+                                          /**
+                                           * Typedef the function
+                                           * pointer type of the
+                                           * underlying class to a
+                                           * local type.
+                                           */
+         typedef typename MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::FunPtr FunPtr;
+       
+                                          /**
+                                           * Constructor. Take and store a
+                                           * pointer to the function which
+                                           * is to be called.
+                                           */
+         ArgCollector (FunPtr fun_ptr);
+    
+                                          /**
+                                           * Take the arguments with
+                                           * which we want to call the
+                                           * function and produce and
+                                           * object of the desired type
+                                           * from that.
+                                           */
+         FunEncapsulation collect_args (Class *object,
+                                        Arg1 arg1,
+                                        Arg2 arg2,
+                                        Arg3 arg3,
+                                        Arg4 arg4,
+                                        Arg5 arg5,
+                                        Arg6 arg6,
+                                        Arg7 arg7);
+    
+                                          /**
+                                           * Same as above, but take
+                                           * a reference instead of a
+                                           * pointer. This allows us
+                                           * to be a little
+                                           * convenient, as we can
+                                           * use @p{object} or
+                                           * @p{this}, without taking
+                                           * care that one is a
+                                           * reference and the other
+                                           * a pointer.
+                                           */
+         FunEncapsulation collect_args (Class &object,
+                                        Arg1   arg1,
+                                        Arg2   arg2,
+                                        Arg3   arg3,
+                                        Arg4   arg4,
+                                        Arg5   arg5,
+                                        Arg6   arg6,
+                                        Arg7   arg7);
+       private:
+                                          /**
+                                           * Space to temporarily store
+                                           * the function pointer.
+                                           */
+         FunPtr fun_ptr;
+      };
+
+                                      /**
+                                       * Declare a function that uses
+                                       * the @ref{ArgCollector} as
+                                       * friend.
+                                       */
+      template <class Class_, typename Arg1_, typename Arg2_, typename Arg3_, typename Arg4_, typename Arg5_, typename Arg6_, typename Arg7_>
+      friend 
+      typename MemFunData7<Class_,Arg1_,Arg2_,Arg3_,Arg4_,Arg5_,Arg6_,Arg7_,void>::ArgCollector
+      encapsulate (void (Class_::*fun_ptr)(Arg1_, Arg2_, Arg3_,
+                                          Arg4_, Arg5_, Arg6_, Arg7_));
+  };
   
   
                                   /**
@@ -3007,6 +3166,22 @@ namespace Threads
   typename MemFunData6<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,void>::ArgCollector
   encapsulate (void (Class::*fun_ptr)(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6));
 
+                                  /**
+                                   * Encapsulate a member function
+                                   * pointer into an object with
+                                   * which a new thread can later be
+                                   * spawned.  For more information
+                                   * on use and internals of this
+                                   * class see the report on this
+                                   * subject.
+                                   *
+                                   * This function exists once for
+                                   * each number of parameters.
+                                   */
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7>
+  typename MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,void>::ArgCollector
+  encapsulate (void (Class::*fun_ptr)(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7));
+
   
                                   /**
                                    * Spawn a new thread using the
@@ -4985,6 +5160,139 @@ namespace Threads
   {
     return collect_args (&object, arg1, arg2, arg3, arg4, arg5, arg6);
   };
+
+
+
+  
+
+/* ---------------------- MemFunData7 implementation ------------------------ */
+
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::MemFunData7 (FunPtr  fun_ptr,
+                                                                             Class  *object,
+                                                                             Arg1    arg1,
+                                                                             Arg2    arg2,
+                                                                             Arg3    arg3,
+                                                                             Arg4    arg4,
+                                                                             Arg5    arg5,
+                                                                             Arg6    arg6,
+                                                                             Arg7    arg7) :
+                 FunDataBase (&MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::thread_entry_point),
+                 fun_ptr (fun_ptr),
+                 object (object),
+                 arg1 (arg1),
+                 arg2 (arg2),
+                 arg3 (arg3),
+                 arg4 (arg4),
+                 arg5 (arg5),
+                 arg6 (arg6),
+                 arg7 (arg7)
+  {};
+
+
+
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::MemFunData7 (const MemFunData7 &fun_data) :
+                 FunDataBase (fun_data),
+                 fun_ptr (fun_data.fun_ptr),
+                 object (fun_data.object),
+                 arg1 (fun_data.arg1),
+                 arg2 (fun_data.arg2),
+                 arg3 (fun_data.arg3),
+                 arg4 (fun_data.arg4),
+                 arg5 (fun_data.arg5),
+                 arg6 (fun_data.arg6),
+                 arg7 (fun_data.arg7)
+  {};
+
+
+
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  FunDataBase *
+  MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::clone () const 
+  {
+    return new MemFunData7 (*this);
+  };
+
+
+
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  void *
+  MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::thread_entry_point (void *arg) 
+  {
+                                    // convenience typedef, since we
+                                    // will need that class name
+                                    // several times below
+    typedef MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType> ThisClass;
+  
+    FunEncapsulation *fun_encapsulation
+      = reinterpret_cast<FunEncapsulation*>(arg);
+    const ThisClass *fun_data
+      = dynamic_cast<const ThisClass*> (fun_encapsulation->fun_data_base);
+
+                                    // copy the parameters
+    ThisClass::FunPtr fun_ptr = fun_data->fun_ptr;
+    Class            *object  = fun_data->object;
+    Arg1              arg1    = fun_data->arg1;
+    Arg2              arg2    = fun_data->arg2;
+    Arg3              arg3    = fun_data->arg3;
+    Arg4              arg4    = fun_data->arg4;
+    Arg5              arg5    = fun_data->arg5;
+    Arg6              arg6    = fun_data->arg6;
+    Arg7              arg7    = fun_data->arg7;
+
+
+                                    // copying of parameters is done,
+                                    // now we can release the lock on
+                                    // @p{fun_data}
+    fun_data->lock.release ();
+
+                                    // call the function
+    (object->*fun_ptr)(arg1, arg2, arg3, arg4, arg5, arg6, arg7);
+  
+    return 0;
+  };
+
+
+
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::ArgCollector::ArgCollector (FunPtr fun_ptr) :
+                 fun_ptr (fun_ptr)
+  {};
+
+
+
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  FunEncapsulation
+  MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::ArgCollector::collect_args (Class *object,
+                                                                                            Arg1   arg1,
+                                                                                            Arg2   arg2,
+                                                                                            Arg3   arg3,
+                                                                                            Arg4   arg4,
+                                                                                            Arg5   arg5,
+                                                                                            Arg6   arg6,
+                                                                                            Arg7   arg7)
+  {
+    return new MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,void>(fun_ptr, object,
+                                                                         arg1, arg2, arg3, arg4, arg5, arg6, arg7);
+  };
+  
+
+
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7, typename RetType>
+  inline
+  FunEncapsulation
+  MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,RetType>::ArgCollector::collect_args (Class &object,
+                                                                                            Arg1   arg1,
+                                                                                            Arg2   arg2,
+                                                                                            Arg3   arg3,
+                                                                                            Arg4   arg4,
+                                                                                            Arg5   arg5,
+                                                                                            Arg6   arg6,
+                                                                                            Arg7   arg7)
+  {
+    return collect_args (&object, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
+  };
   
 
 /* ---------------------------------------------------------------- */
@@ -5153,6 +5461,15 @@ namespace Threads
 
 
   
+  template <class Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6, typename Arg7>
+  typename MemFunData7<Class,Arg1,Arg2,Arg3,Arg4,Arg5,Arg6,Arg7,void>::ArgCollector
+  encapsulate (void (Class::*fun_ptr)(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7))
+  {
+    return fun_ptr;
+  };
+
+
+  
   template <typename ForwardIterator>
   typename std::vector<std::pair<ForwardIterator,ForwardIterator> >
   split_range (const ForwardIterator &begin,
@@ -5194,8 +5511,8 @@ namespace Threads
                                             // template type, which
                                             // here is unsigned if no
                                             // cast is performed)
-           advance (return_values[i].second,
-                    static_cast<signed int>(n_elements_per_interval));
+           std::advance (return_values[i].second,
+                         static_cast<signed int>(n_elements_per_interval));
                                             // distribute residual in
                                             // division equally among
                                             // the first few

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