eglib/src/gmem.c

   1 /*
   2  * gmem.c: memory utility functions
   3  *
   4  * Author:
   5  *      Gonzalo Paniagua Javier (gonzalo@novell.com)
   6  *
   7  * (C) 2006 Novell, Inc.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining
  10  * a copy of this software and associated documentation files (the
  11  * "Software"), to deal in the Software without restriction, including
  12  * without limitation the rights to use, copy, modify, merge, publish,
  13  * distribute, sublicense, and/or sell copies of the Software, and to
  14  * permit persons to whom the Software is furnished to do so, subject to
  15  * the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be
  18  * included in all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27  */
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <glib.h>
  31
  32 void
  33 g_free (void *ptr)
  34 {
  35         if (ptr != NULL)
  36                 free (ptr);
  37 }
  38
  39 gpointer
  40 g_memdup (gconstpointer mem, guint byte_size)
  41 {
  42         gpointer ptr;
  43
  44         if (mem == NULL)
  45                 return NULL;
  46
  47         ptr = g_malloc (byte_size);
  48         if (ptr != NULL)
  49                 memcpy (ptr, mem, byte_size);
  50
  51         return ptr;
  52 }
  53
  54 gpointer g_realloc (gpointer obj, gsize size)
  55 {
  56         gpointer ptr;
  57         if (!size) {
  58                 g_free (obj);
  59                 return 0;
  60         }
  61         ptr = realloc (obj, size);
  62         if (ptr)
  63                 return ptr;
  64         g_error ("Could not allocate %i bytes", size);
  65 }
  66
  67 gpointer
  68 g_malloc (gsize x)
  69 {
  70         gpointer ptr;
  71         if (!x)
  72                 return 0;
  73         ptr = malloc (x);
  74         if (ptr)
  75                 return ptr;
  76         g_error ("Could not allocate %i bytes", x);
  77 }
  78
  79 gpointer g_malloc0 (gsize x)
  80 {
  81         gpointer ptr;
  82         if (!x)
  83                 return 0;
  84         ptr = calloc(1,x);
  85         if (ptr)
  86                 return ptr;
  87         g_error ("Could not allocate %i bytes", x);
  88 }
  89
  90 gpointer g_try_malloc (gsize x)
  91 {
  92         if (x)
  93                 return malloc (x);
  94         return 0;
  95 }
  96
  97
  98 gpointer g_try_realloc (gpointer obj, gsize size)
  99 {
 100         if (!size) {
 101                 g_free (obj);
 102                 return 0;
 103         }
 104         return realloc (obj, size);
 105 }