src/lib/ecore_x/xcb/ecore_xcb_reply.c

   1 /*
   2  * vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
   3  */
   4
   5 #include <stdlib.h>
   6
   7
   8 /*
   9  * FIXME:
  10  * - in ecore_xcb_cookie_cache, should provide better error management
  11  *   when memory allocation fails
  12  * - Use an array instead of a list
  13  * - Is ecore_xcb_reply_free really needed ?
  14  *   _ecore_xcb_reply_cache frees the current reply and
  15  *   _ecore_x_reply_shutdown frees the last reply to free.
  16  *   I keep it in case it is need for memory improvements,
  17  *   but its code is commented.
  18  */
  19
  20 static Eina_List  *_ecore_xcb_cookies = NULL;
  21 static void       *_ecore_xcb_reply = NULL;
  22
  23 typedef struct _Ecore_Xcb_Data Ecore_Xcb_Data;
  24
  25 struct _Ecore_Xcb_Data
  26 {
  27   unsigned int         cookie;
  28 };
  29
  30
  31 int
  32 _ecore_x_reply_init ()
  33 {
  34    return 1;
  35 }
  36
  37 void
  38 _ecore_x_reply_shutdown ()
  39 {
  40   Ecore_Xcb_Data *data;
  41
  42   if (_ecore_xcb_reply)
  43     free(_ecore_xcb_reply);
  44
  45    if (!_ecore_xcb_cookies)
  46      return;
  47
  48    EINA_LIST_FREE(_ecore_xcb_cookies, data)
  49      free(data);
  50 }
  51
  52 void
  53 _ecore_xcb_cookie_cache (unsigned int cookie)
  54 {
  55    Ecore_Xcb_Data *data;
  56
  57    if (!_ecore_xcb_cookies)
  58      return;
  59
  60    data = (Ecore_Xcb_Data *)malloc(sizeof(Ecore_Xcb_Data));
  61    if (!data)
  62      return;
  63
  64    data->cookie = cookie;
  65
  66    _ecore_xcb_cookies = eina_list_append(_ecore_xcb_cookies, data);
  67    if (!eina_list_data_find(_ecore_xcb_cookies, data))
  68      {
  69         free(data);
  70         return;
  71      }
  72 }
  73
  74 unsigned int
  75 _ecore_xcb_cookie_get (void)
  76 {
  77    Ecore_Xcb_Data *data;
  78    unsigned int    cookie;
  79
  80    if (!_ecore_xcb_cookies)
  81      return 0;
  82
  83    data = eina_list_data_get(_ecore_xcb_cookies);
  84    if (!data) return 0;
  85
  86    _ecore_xcb_cookies = eina_list_remove_list(_ecore_xcb_cookies, _ecore_xcb_cookies);
  87         cookie = data->cookie;
  88         free(data);
  89
  90         return cookie;
  91 }
  92
  93 void
  94 _ecore_xcb_reply_cache (void *reply)
  95 {
  96    if (_ecore_xcb_reply)
  97      free(_ecore_xcb_reply);
  98    _ecore_xcb_reply = reply;
  99 }
 100
 101 void *
 102 _ecore_xcb_reply_get (void)
 103 {
 104    return _ecore_xcb_reply;
 105 }
 106
 107 EAPI void
 108 ecore_xcb_reply_free()
 109 {
 110 /*   if (_ecore_xcb_reply) */
 111 /*     { */
 112 /*        free(_ecore_xcb_reply); */
 113 /*        _ecore_xcb_reply = NULL; */
 114 /*     } */
 115 }