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include/elfio/elfio_array.hpp

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+/*
+Copyright (C) 2001-present by Serge Lamikhov-Center
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef ELFIO_ARRAY_HPP
+#define ELFIO_ARRAY_HPP
+
+#include <algorithm>
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+template <class S, typename T> class array_section_accessor_template
+{
+  public:
+    //------------------------------------------------------------------------------
+    explicit array_section_accessor_template( const elfio& elf_file,
+                                              S*           section )
+        : elf_file( elf_file ), array_section( section )
+    {
+    }
+
+    //------------------------------------------------------------------------------
+    Elf_Xword get_entries_num() const
+    {
+        Elf_Xword entry_size = sizeof( T );
+        return array_section->get_size() / entry_size;
+    }
+
+    //------------------------------------------------------------------------------
+    bool get_entry( Elf_Xword index, Elf64_Addr& address ) const
+    {
+        if ( index >= get_entries_num() ) { // Is index valid
+            return false;
+        }
+
+        const endianess_convertor& convertor = elf_file.get_convertor();
+
+        const T temp = *reinterpret_cast<const T*>( array_section->get_data() +
+                                                    index * sizeof( T ) );
+        address      = convertor( temp );
+
+        return true;
+    }
+
+    //------------------------------------------------------------------------------
+    void add_entry( Elf64_Addr address )
+    {
+        const endianess_convertor& convertor = elf_file.get_convertor();
+
+        T temp = convertor( (T)address );
+        array_section->append_data( reinterpret_cast<char*>( &temp ),
+                                    sizeof( temp ) );
+    }
+
+  private:
+    //------------------------------------------------------------------------------
+    const elfio& elf_file;
+    S*           array_section;
+};
+
+template <typename T = Elf32_Word>
+using array_section_accessor = array_section_accessor_template<section, T>;
+template <typename T = Elf32_Word>
+using const_array_section_accessor =
+    array_section_accessor_template<const section, T>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_ARRAY_HPP