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-/* testmini.c -- very simple test program for the miniLZO library
-
- This file is part of the LZO real-time data compression library.
-
- Copyright (C) 1996-2014 Markus Franz Xaver Johannes Oberhumer
- All Rights Reserved.
-
- The LZO library is free software; you can redistribute it and/or
- modify it 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.
-
- The LZO library 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 the LZO library; see the file COPYING.
- If not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-
- Markus F.X.J. Oberhumer
- <markus@oberhumer.com>
- http://www.oberhumer.com/opensource/lzo/
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-
-
-/*************************************************************************
-// This program shows the basic usage of the LZO library.
-// We will compress a block of data and decompress again.
-//
-// For more information, documentation, example programs and other support
-// files (like Makefiles and build scripts) please download the full LZO
-// package from
-// http://www.oberhumer.com/opensource/lzo/
-**************************************************************************/
-
-/* First let's include "minizo.h". */
-
-#include "minilzo.h"
-
-
-/* We want to compress the data block at 'in' with length 'IN_LEN' to
- * the block at 'out'. Because the input block may be incompressible,
- * we must provide a little more output space in case that compression
- * is not possible.
- */
-
-#define IN_LEN (128*1024ul)
-#define OUT_LEN (IN_LEN + IN_LEN / 16 + 64 + 3)
-
-static unsigned char __LZO_MMODEL in [ IN_LEN ];
-static unsigned char __LZO_MMODEL out [ OUT_LEN ];
-
-
-/* Work-memory needed for compression. Allocate memory in units
- * of 'lzo_align_t' (instead of 'char') to make sure it is properly aligned.
- */
-
-#define HEAP_ALLOC(var,size) \
- lzo_align_t __LZO_MMODEL var [ ((size) + (sizeof(lzo_align_t) - 1)) / sizeof(lzo_align_t) ]
-
-static HEAP_ALLOC(wrkmem, LZO1X_1_MEM_COMPRESS);
-
-
-/*************************************************************************
-//
-**************************************************************************/
-
-int main(int argc, char *argv[])
-{
- int r;
- lzo_uint in_len;
- lzo_uint out_len;
- lzo_uint new_len;
-
- if (argc < 0 && argv == NULL) /* avoid warning about unused args */
- return 0;
-
- printf("\nLZO real-time data compression library (v%s, %s).\n",
- lzo_version_string(), lzo_version_date());
- printf("Copyright (C) 1996-2014 Markus Franz Xaver Johannes Oberhumer\nAll Rights Reserved.\n\n");
-
-
-/*
- * Step 1: initialize the LZO library
- */
- if (lzo_init() != LZO_E_OK)
- {
- printf("internal error - lzo_init() failed !!!\n");
- printf("(this usually indicates a compiler bug - try recompiling\nwithout optimizations, and enable '-DLZO_DEBUG' for diagnostics)\n");
- return 3;
- }
-
-/*
- * Step 2: prepare the input block that will get compressed.
- * We just fill it with zeros in this example program,
- * but you would use your real-world data here.
- */
- in_len = IN_LEN;
- lzo_memset(in,0,in_len);
-
-/*
- * Step 3: compress from 'in' to 'out' with LZO1X-1
- */
- r = lzo1x_1_compress(in,in_len,out,&out_len,wrkmem);
- if (r == LZO_E_OK)
- printf("compressed %lu bytes into %lu bytes\n",
- (unsigned long) in_len, (unsigned long) out_len);
- else
- {
- /* this should NEVER happen */
- printf("internal error - compression failed: %d\n", r);
- return 2;
- }
- /* check for an incompressible block */
- if (out_len >= in_len)
- {
- printf("This block contains incompressible data.\n");
- return 0;
- }
-
-/*
- * Step 4: decompress again, now going from 'out' to 'in'
- */
- new_len = in_len;
- r = lzo1x_decompress(out,out_len,in,&new_len,NULL);
- if (r == LZO_E_OK && new_len == in_len)
- printf("decompressed %lu bytes back into %lu bytes\n",
- (unsigned long) out_len, (unsigned long) in_len);
- else
- {
- /* this should NEVER happen */
- printf("internal error - decompression failed: %d\n", r);
- return 1;
- }
-
- printf("\nminiLZO simple compression test passed.\n");
- return 0;
-}
-
-/*
-vi:ts=4:et
-*/
-