/* testmini.c -- very simple test program for the miniLZO library

    This file is part of the LZO real-time data compression library.

    Copyright (C) 1996-2017 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) - )) / 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 <  && argv == NULL)   /* avoid warning about unused args */

         return ;

     printf("\nLZO real-time data compression library (v%s, %s).\n",

            lzo_version_string(), lzo_version_date());

     printf("Copyright (C) 1996-2017 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 ;

     }

 /*

  * 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,,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 ;

     }

     /* check for an incompressible block */

     if (out_len >= in_len)

     {

         printf("This block contains incompressible data.\n");

         return ;

     }

 /*

  * 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 ;

     }

     printf("\nminiLZO simple compression test passed.\n");

     return ;

 }

 /* vim:set ts=4 sw=4 et: */

    if (lzo_init() != LZO_E_OK) {

        ...

    }

    in_len = IN_LEN;

    lzo_memset(in,,in_len);

    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 ;

    }

    /* check for an incompressible block */

    if (out_len >= in_len) {

        printf("This block contains incompressible data.\n");

        return ;

    }