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src/mem.h

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+/* mem.h --
+
+   This file is part of the UPX executable compressor.
+
+   Copyright (C) 1996-2000 Markus Franz Xaver Johannes Oberhumer
+   Copyright (C) 1996-2000 Laszlo Molnar
+
+   UPX and the UCL library are free software; you can redistribute them
+   and/or modify them under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.
+   If not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+   Markus F.X.J. Oberhumer                   Laszlo Molnar
+   markus.oberhumer@jk.uni-linz.ac.at        ml1050@cdata.tvnet.hu
+ */
+
+
+#ifndef __UPX_MEM_H
+#define __UPX_MEM_H
+
+
+/*************************************************************************
+//
+**************************************************************************/
+
+class MemBuffer
+{
+public:
+    MemBuffer(unsigned size=0);
+    ~MemBuffer();
+
+    void alloc(unsigned size);
+    void allocForCompression(unsigned uncompressed_size);
+    void allocForUncompression(unsigned uncompressed_size);
+
+    void free();
+
+    const unsigned char *getBuf()     const { return ptr; }
+    unsigned getSize() const ;
+
+    operator       unsigned char * ()       { return ptr; }
+    //operator const unsigned char * () const { return ptr; }
+
+    enum { MAX_OVERLAP_OVERHEAD = 4096 };
+
+private:
+    void alloc(unsigned size, unsigned base_offset);
+
+    unsigned char *ptr;
+    unsigned char *alloc_ptr;
+    unsigned alloc_size;
+
+private:
+    // disable copy and assignment
+    MemBuffer(MemBuffer const &); // {}
+    MemBuffer& operator= (MemBuffer const &); // { return *this; }
+
+    // disable dynamic allocation
+    static void *operator new (size_t); // {}
+    static void *operator new[] (size_t); // {}
+    //static void operator delete (void *) {}
+    //static void operator delete[] (void *) {}
+};
+
+
+#endif /* already included */
+
+
+/*
+vi:ts=4:et
+*/
+