56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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/*
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* \brief Utility for buffering XML nodes
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* \author Norman Feske
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* \date 2017-03-03
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*/
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/*
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* Copyright (C) 2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _SRC__INIT__BUFFERED_XML_H_
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#define _SRC__INIT__BUFFERED_XML_H_
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namespace Init { class Buffered_xml; }
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class Init::Buffered_xml
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{
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private:
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Allocator &_alloc;
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char const * const _ptr; /* pointer to dynamically allocated buffer */
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Xml_node const _xml; /* referring to buffer of '_ptr' */
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/**
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* \throw Allocator::Out_of_memory
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*/
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static char const *_init_ptr(Allocator &alloc, Xml_node node)
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{
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char *ptr = (char *)alloc.alloc(node.size());
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Genode::memcpy(ptr, node.addr(), node.size());
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return ptr;
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}
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public:
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/**
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* Constructor
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*
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* \throw Allocator::Out_of_memory
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*/
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Buffered_xml(Allocator &alloc, Xml_node node)
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:
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_alloc(alloc), _ptr(_init_ptr(alloc, node)), _xml(_ptr, node.size())
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{ }
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~Buffered_xml() { _alloc.free(const_cast<char *>(_ptr), _xml.size()); }
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Xml_node xml() const { return _xml; }
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};
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#endif /* _SRC__INIT__BUFFERED_XML_H_ */
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