Bounded_Array_Sequence_T.h

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00001 #ifndef guard_bounded_array_sequence_hpp
00002 #define guard_bounded_array_sequence_hpp
00003 /**
00004  * @file
00005  *
00006  * @brief Implement unbounded sequences for arrays.
00007  *
00008  * $Id: Bounded_Array_Sequence_T.h 76998 2007-02-12 06:52:47Z johnnyw $
00009  *
00010  * @author Carlos O'Ryan
00011  */
00012 #include "tao/Bounded_Array_Allocation_Traits_T.h"
00013 #include "tao/Generic_Sequence_T.h"
00014 #include "tao/Array_Traits_T.h"
00015 
00016 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
00017 
00018 namespace TAO
00019 {
00020 
00021 template<typename T_array, typename T_slice, typename T_tag, CORBA::ULong MAX>
00022 class bounded_array_sequence
00023 {
00024 public:
00025   typedef T_array * element_type;
00026   typedef T_array value_type;
00027   typedef T_array * T_slice_ptr;
00028   typedef T_slice_ptr * const_value_type;
00029   typedef value_type & subscript_type;
00030   typedef value_type const & const_subscript_type;
00031 
00032   typedef details::bounded_array_allocation_traits<value_type,MAX,true> allocation_traits;
00033   typedef TAO_Array_Forany_T<T_array, T_slice, T_tag> forany;
00034   typedef details::array_traits <forany> element_traits;
00035   typedef details::generic_sequence<value_type, allocation_traits, element_traits> implementation_type;
00036 
00037   inline bounded_array_sequence()
00038     : impl_()
00039   {}
00040   inline bounded_array_sequence(
00041       CORBA::ULong length,
00042       value_type * data,
00043       CORBA::Boolean release = false)
00044     : impl_(MAX, length, data, release)
00045   {}
00046   inline CORBA::ULong maximum() const {
00047     return impl_.maximum();
00048   }
00049   inline CORBA::Boolean release() const {
00050     return impl_.release();
00051   }
00052   inline CORBA::ULong length() const {
00053     return impl_.length();
00054   }
00055   inline void length(CORBA::ULong length) {
00056     impl_.length(length);
00057   }
00058   inline value_type const & operator[](CORBA::ULong i) const {
00059     return impl_[i];
00060   }
00061   inline value_type & operator[](CORBA::ULong i) {
00062     return impl_[i];
00063   }
00064   inline void replace(
00065       CORBA::ULong length,
00066       value_type * data,
00067       CORBA::Boolean release = false) {
00068     impl_.replace(MAX, length, data, release);
00069   }
00070   inline value_type const * get_buffer() const {
00071     return impl_.get_buffer();
00072   }
00073   inline value_type * get_buffer(CORBA::Boolean orphan = false) {
00074     return impl_.get_buffer(orphan);
00075   }
00076   inline void swap(bounded_array_sequence & rhs) throw() {
00077     impl_.swap(rhs.impl_);
00078   }
00079   static value_type * allocbuf(CORBA::ULong maximum) {
00080     return implementation_type::allocbuf(maximum);
00081   }
00082   static void freebuf(value_type * buffer) {
00083     implementation_type::freebuf(buffer);
00084   }
00085 
00086 private:
00087   implementation_type impl_;
00088 };
00089 }
00090 
00091 namespace TAO
00092 {
00093   template <typename stream, typename T_array, typename T_slice, typename T_tag, CORBA::ULong MAX>
00094   bool demarshal_sequence(stream & strm, TAO::bounded_array_sequence<T_array, T_slice, T_tag, MAX> & target) {
00095     typedef typename TAO::bounded_array_sequence<T_array, T_slice, T_tag, MAX> sequence;
00096     typedef TAO_Array_Forany_T<T_array, T_slice, T_tag> forany;
00097     typedef TAO::Array_Traits<forany> array_traits;
00098 
00099     ::CORBA::ULong new_length = 0;
00100     if (!(strm >> new_length)) {
00101       return false;
00102     }
00103     if ((new_length > strm.length()) || (new_length > target.maximum ())) {
00104       return false;
00105     }
00106     sequence tmp;
00107     tmp.length(new_length);
00108     typename sequence::value_type * buffer = tmp.get_buffer();
00109     for(CORBA::ULong i = 0; i < new_length; ++i) {
00110       forany tmp (array_traits::alloc ());
00111       bool const _tao_marshal_flag = (strm >> tmp);
00112       if (_tao_marshal_flag) {
00113         array_traits::copy (buffer[i], tmp.in ());
00114       }
00115       array_traits::free (tmp.inout ());
00116       if (!_tao_marshal_flag) {
00117         return false;
00118       }
00119     }
00120     tmp.swap(target);
00121     return true;
00122   }
00123 
00124   template <typename stream, typename T_array, typename T_slice, typename T_tag, CORBA::ULong MAX>
00125   bool marshal_sequence(stream & strm, const TAO::bounded_array_sequence<T_array, T_slice, T_tag, MAX> & source) {
00126     typedef TAO_Array_Forany_T<T_array, T_slice, T_tag> forany;
00127     typedef TAO_FixedArray_Var_T <T_array, T_slice, T_tag> fixed_array;
00128     typedef TAO::Array_Traits<forany> array_traits;
00129     ::CORBA::ULong const length = source.length ();
00130     if (!(strm << length)) {
00131       return false;
00132     }
00133     for(CORBA::ULong i = 0; i < length; ++i) {
00134       fixed_array tmp_array = array_traits::dup (source[i]);
00135       forany tmp (tmp_array.inout ());
00136       if (!(strm << tmp)) {
00137         return false;
00138       }
00139     }
00140     return true;
00141   }
00142 }
00143 
00144 TAO_END_VERSIONED_NAMESPACE_DECL
00145 
00146 #endif // guard_bounded_array_sequence_hpp

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