62 lines
2.5 KiB
C++
62 lines
2.5 KiB
C++
// This file is part of the uSTL library, an STL implementation.
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//
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// Copyright (c) 2005 Mike Sharov <msharov@users.sourceforge.net>
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// This file is free software, distributed under the MIT License.
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#ifndef MEMBLOCK_H_7ED63A891164CC43578E63664D52A196
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#define MEMBLOCK_H_7ED63A891164CC43578E63664D52A196
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#include "memlink.h"
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namespace ustl {
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/// \class memblock memblock.h ustl.h
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/// \ingroup MemoryManagement
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///
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/// \brief Allocated memory block.
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///
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/// Adds memory management capabilities to memlink. Uses malloc and realloc to
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/// maintain the internal pointer, but only if allocated using members of this class,
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/// or if linked to using the Manage() member function. Managed memory is automatically
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/// freed in the destructor.
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///
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class memblock : public memlink {
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public:
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memblock (void);
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memblock (const void* p, size_type n);
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explicit memblock (size_type n);
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explicit memblock (const cmemlink& b);
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explicit memblock (const memlink& b);
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memblock (const memblock& b);
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virtual ~memblock (void) throw();
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virtual void unlink (void) throw();
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inline void assign (const cmemlink& l) { assign (l.cdata(), l.readable_size()); }
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inline const memblock& operator= (const cmemlink& l) { assign (l); return (*this); }
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inline const memblock& operator= (const memlink& l) { assign (l); return (*this); }
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inline const memblock& operator= (const memblock& l) { assign (l); return (*this); }
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inline void swap (memblock& l) { memlink::swap (l); ::ustl::swap (m_Capacity, l.m_Capacity); }
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void assign (const void* p, size_type n);
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void reserve (size_type newSize, bool bExact = true);
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void resize (size_type newSize, bool bExact = true);
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iterator insert (iterator start, size_type size);
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iterator erase (iterator start, size_type size);
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inline void clear (void) { resize (0); }
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inline size_type capacity (void) const { return (m_Capacity); }
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inline bool is_linked (void) const { return (!capacity()); }
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inline size_type max_size (void) const { return (is_linked() ? memlink::max_size() : SIZE_MAX); }
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inline void manage (memlink& l) { manage (l.begin(), l.size()); }
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void deallocate (void) throw();
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void manage (void* p, size_type n);
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void copy_link (void);
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void read (istream& is);
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void read_file (const char* filename);
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protected:
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virtual size_type minimumFreeCapacity (void) const throw() __attribute__((const));
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private:
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size_type m_Capacity; ///< Number of bytes allocated by Resize.
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};
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} // namespace ustl
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#endif
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