Unbounded_Array_Sequence_T.h

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00001 #ifndef guard_unbounded_array_sequence_hpp
00002 #define guard_unbounded_array_sequence_hpp
00003 /**
00004  * @file
00005  *
00006  * @brief Implement unbounded sequences for arrays.
00007  *
00008  * $Id: Unbounded_Array_Sequence_T.h 76998 2007-02-12 06:52:47Z johnnyw $
00009  *
00010  * @author Carlos O'Ryan
00011  */
00012 #include "tao/Unbounded_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>
00022 class unbounded_array_sequence
00023 {
00024 public:
00025   typedef T_array * element_type;
00026   typedef T_array value_type;
00027   typedef T_slice * T_slice_ptr;
00028   typedef T_slice * slice_type;
00029   typedef T_slice_ptr * const_value_type;
00030   typedef value_type & subscript_type;
00031   typedef value_type const & const_subscript_type;
00032 
00033   typedef details::unbounded_array_allocation_traits<value_type,true> allocation_traits;
00034   typedef TAO_Array_Forany_T<T_array, T_slice, T_tag> forany;
00035   typedef details::array_traits <forany> element_traits;
00036   typedef details::generic_sequence<value_type, allocation_traits, element_traits> implementation_type;
00037 
00038   inline unbounded_array_sequence()
00039     : impl_()
00040   {}
00041   inline explicit unbounded_array_sequence(CORBA::ULong maximum)
00042     : impl_(maximum)
00043   {}
00044   inline unbounded_array_sequence(
00045       CORBA::ULong maximum,
00046       CORBA::ULong length,
00047       value_type * data,
00048       CORBA::Boolean release = false)
00049     : impl_(maximum, length, data, release)
00050   {}
00051   inline CORBA::ULong maximum() const {
00052     return impl_.maximum();
00053   }
00054   inline CORBA::Boolean release() const {
00055     return impl_.release();
00056   }
00057   inline CORBA::ULong length() const {
00058     return impl_.length();
00059   }
00060   inline void length(CORBA::ULong length) {
00061     impl_.length(length);
00062   }
00063   inline value_type const & operator[](CORBA::ULong i) const {
00064     return impl_[i];
00065   }
00066   inline value_type & operator[](CORBA::ULong i) {
00067     return impl_[i];
00068   }
00069   inline void replace(
00070       CORBA::ULong maximum,
00071       CORBA::ULong length,
00072       value_type * data,
00073       CORBA::Boolean release = false) {
00074     impl_.replace(maximum, length, data, release);
00075   }
00076   inline value_type const * get_buffer() const {
00077     return impl_.get_buffer();
00078   }
00079   inline value_type * get_buffer(CORBA::Boolean orphan = false) {
00080     return impl_.get_buffer(orphan);
00081   }
00082   inline void swap(unbounded_array_sequence & rhs) throw() {
00083     impl_.swap(rhs.impl_);
00084   }
00085   static value_type * allocbuf(CORBA::ULong maximum) {
00086     return implementation_type::allocbuf(maximum);
00087   }
00088   static void freebuf(value_type * buffer) {
00089     implementation_type::freebuf(buffer);
00090   }
00091 
00092 private:
00093   implementation_type impl_;
00094 };
00095 }
00096 
00097 namespace TAO
00098 {
00099   template <typename stream, typename T_array, typename T_slice, typename T_tag>
00100   bool demarshal_sequence(stream & strm, TAO::unbounded_array_sequence<T_array, T_slice, T_tag> & target) {
00101     typedef TAO::unbounded_array_sequence<T_array, T_slice, T_tag> sequence;
00102     typedef TAO_Array_Forany_T <T_array, T_slice, T_tag> forany;
00103     typedef TAO::Array_Traits<forany> array_traits;
00104 
00105     ::CORBA::ULong new_length = 0;
00106     if (!(strm >> new_length)) {
00107       return false;
00108     }
00109     if (new_length > strm.length()) {
00110       return false;
00111     }
00112     sequence tmp(new_length);
00113     tmp.length(new_length);
00114     typename sequence::value_type * buffer = tmp.get_buffer();
00115     for(CORBA::ULong i = 0; i < new_length; ++i) {
00116       forany tmp (array_traits::alloc ());
00117       bool const _tao_marshal_flag = (strm >> tmp);
00118       if (_tao_marshal_flag) {
00119         array_traits::copy (buffer[i], tmp.in ());
00120       }
00121       array_traits::free (tmp.inout ());
00122       if (!_tao_marshal_flag) {
00123         return false;
00124       }
00125     }
00126     tmp.swap(target);
00127     return true;
00128   }
00129 
00130   template <typename stream, typename T_array, typename T_slice, typename T_tag>
00131   bool marshal_sequence(stream & strm, const TAO::unbounded_array_sequence<T_array, T_slice, T_tag> & source) {
00132     typedef TAO_FixedArray_Var_T <T_array, T_slice, T_tag> fixed_array;
00133     typedef TAO_Array_Forany_T <T_array, T_slice, T_tag> forany;
00134     typedef TAO::Array_Traits<forany> array_traits;
00135     ::CORBA::ULong const length = source.length ();
00136     if (!(strm << length)) {
00137       return false;
00138     }
00139     for(CORBA::ULong i = 0; i < length; ++i) {
00140       fixed_array tmp_array = array_traits::dup (source[i]);
00141       forany const tmp (tmp_array.inout ());
00142       if (!(strm << tmp)) {
00143         return false;
00144       }
00145     }
00146     return true;
00147   }
00148 }
00149 
00150 TAO_END_VERSIONED_NAMESPACE_DECL
00151 
00152 #endif // guard_unbounded_array_sequence_hpp

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