0fb5c9b678
Description:
- Revised DataSet::write to pass in correct string buffer
- Added member function DataSet::getInMemDataSize() to simplify
getting the dataset's data size in memory.
- Added private functions for reading fixed- and variable-len
string data: p_read_fixed_len and p_read_variable_len.
- Added tests to write/read array of strings to datasets.
Platforms tested:
Linux/32 2.6 (jam)
FreeBSD/64 6.3 (liberty)
SunOS 5.10 (linew)
99 lines
3.5 KiB
C++
99 lines
3.5 KiB
C++
// C++ informative line for the emacs editor: -*- C++ -*-
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef _H5Attribute_H
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#define _H5Attribute_H
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#ifndef H5_NO_NAMESPACE
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namespace H5 {
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#endif
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class H5_DLLCPP Attribute : public AbstractDs, public IdComponent {
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public:
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// Closes this attribute.
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virtual void close();
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// Gets the name of the file, in which this attribute belongs.
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H5std_string getFileName() const;
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// Gets the name of this attribute.
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ssize_t getName( size_t buf_size, H5std_string& attr_name ) const;
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H5std_string getName( size_t buf_size ) const; // returns name, not its length
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H5std_string getName() const; // returns name, no argument
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// Gets a copy of the dataspace for this attribute.
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virtual DataSpace getSpace() const;
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// Returns the amount of storage size required for this attribute.
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virtual hsize_t getStorageSize() const;
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// Returns the in memory size of this attribute's data.
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virtual size_t getInMemDataSize() const;
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// Reads data from this attribute.
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void read( const DataType& mem_type, void *buf ) const;
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void read( const DataType& mem_type, H5std_string& strg ) const;
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// Writes data to this attribute.
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void write(const DataType& mem_type, const void *buf ) const;
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void write(const DataType& mem_type, const H5std_string& strg ) const;
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///\brief Returns this class name
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virtual H5std_string fromClass () const { return("Attribute"); }
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// Creates a copy of an existing attribute using the attribute id
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Attribute( const hid_t attr_id );
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// Copy constructor: makes a copy of an existing Attribute object.
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Attribute( const Attribute& original );
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// Default constructor
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Attribute();
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// Gets the attribute id.
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virtual hid_t getId() const;
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// Destructor: properly terminates access to this attribute.
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virtual ~Attribute();
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protected:
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// Sets the attribute id.
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virtual void p_setId(const hid_t new_id);
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private:
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hid_t id; // HDF5 attribute id
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// This function contains the common code that is used by
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// getTypeClass and various API functions getXxxType
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// defined in AbstractDs for generic datatype and specific
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// sub-types
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virtual hid_t p_get_type() const;
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// Reads variable or fixed len strings from this attribute.
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void p_read_variable_len(const DataType& mem_type, H5std_string& strg) const;
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void p_read_fixed_len(const DataType& mem_type, H5std_string& strg) const;
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// do not inherit H5Object::iterateAttrs
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int iterateAttrs() { return 0; }
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// do not inherit H5Object::renameAttr
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void renameAttr() {}
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};
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#ifndef H5_NO_NAMESPACE
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}
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#endif
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#endif
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