Exemplo n.º 1
0
static ucl_node_t
alloc_node (int value)
{
  ucl_node_t	N = ucl_malloc(ucl_memory_allocator, sizeof(ucl_node_tag_t));
  VAL(N) = value;
  return N;
}
Exemplo n.º 2
0
ucl_alloc(ucl_uint nelems, ucl_uint size)
{
    ucl_uint s = nelems * size;
    if (nelems <= 0 || s / nelems != size)
        return NULL;
    return ucl_malloc(s);
}
Exemplo n.º 3
0
int main(int argc, char *argv[])
{
    int r;
    ucl_bytep in;
    ucl_bytep out;
    ucl_uint in_len;
    ucl_uint out_len;
    ucl_uint new_len;
    int level = 5;                  /* compression level (1-10) */

    if (argc < 0 && argv == NULL)   /* avoid warning about unused args */
        return 0;

    printf("\nUCL data compression library (v%s, %s).\n",
            ucl_version_string(), ucl_version_date());
    printf("Copyright (C) 1996-2003 Markus Franz Xaver Johannes Oberhumer\n");
    printf("http://www.oberhumer.com/opensource/ucl/\n\n");


/*
 * Step 1: initialize the UCL library
 */
    if (ucl_init() != UCL_E_OK)
    {
        printf("internal error - ucl_init() failed !!!\n");
        printf("(this usually indicates a compiler bug - try recompiling\nwithout optimizations, and enable `-DUCL_DEBUG' for diagnostics)\n");
        return 1;
    }


/*
 * Step 2: setup memory
 *
 * 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.
 */
    in_len = 256 * 1024L;

#if defined(ACC_MM_AHSHIFT)
    /* reduce memory requirements for ancient 640kB DOS real-mode */
    if (ACC_MM_AHSHIFT != 3)
        in_len = 16 * 1024L;
#endif

    out_len = in_len + in_len / 8 + 256;

    in = (ucl_bytep) ucl_malloc(in_len);
    out = (ucl_bytep) ucl_malloc(out_len);
    if (in == NULL || out == NULL)
    {
        printf("out of memory\n");
        return 2;
    }


/*
 * Step 3: 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.
 */
    ucl_memset(in, 0, in_len);


/*
 * Step 4: compress from `in' to `out' with UCL NRV2B
 */
    r = ucl_nrv2b_99_compress(in,in_len,out,&out_len,NULL,level,NULL,NULL);
    if (r == UCL_E_OUT_OF_MEMORY)
    {
        printf("out of memory in compress\n");
        return 3;
    }
    if (r == UCL_E_OK)
        printf("compressed %lu bytes into %lu bytes\n",
            (long) in_len, (long) out_len);
    else
    {
        /* this should NEVER happen */
        printf("internal error - compression failed: %d\n", r);
        return 4;
    }
    /* check for an incompressible block */
    if (out_len >= in_len)
    {
        printf("This block contains incompressible data.\n");
        return 0;
    }


/*
 * Step 5: decompress again, now going back from `out' to `in'
 */
    new_len = in_len;
#if defined(UCL_USE_ASM)
    r = ucl_nrv2b_decompress_asm_8(out,out_len,in,&new_len,NULL);
#else
    r = ucl_nrv2b_decompress_8(out,out_len,in,&new_len,NULL);
#endif
    if (r == UCL_E_OK && new_len == in_len)
        printf("decompressed %lu bytes back into %lu bytes\n",
            (long) out_len, (long) in_len);
    else
    {
        /* this should NEVER happen */
        printf("internal error - decompression failed: %d\n", r);
        return 5;
    }

    ucl_free(out);
    ucl_free(in);
    printf("\n");
#if defined(UCL_USE_ASM)
    printf("i386 assembler version is enabled.\n");
#endif
    printf("Simple compression test passed.\n");
    return 0;
}
Exemplo n.º 4
0
        None.

   Side effects:

        None.

*/

char *
ucl_strtok_constructor	(strtok_t *this, size_t size)
{
  char *	ptr;
  

  ptr  = (char *) ucl_malloc(sizeof(char) * size);
  if (ptr)
    {
      this->size = size;
      this->len  = 0;
      this->ptr  = ptr;
      memset(ptr, '\0', sizeof(char) * size);
    }
  return ptr;
}



/* ucl_strtok_destructor --

	Destroys the  string token structure.  The dynamically allocated