nixpkgs/pkgs/desktops/enlightenment/efl/0002-efreet-more-stat-info-changes.patch

                                                                     
                                                                     
                                                                     
                                             
diff --git a/src/bin/efreet/efreet_icon_cache_create.c b/src/bin/efreet/efreet_icon_cache_create.c
index 6810ca684e..6478df4dbd 100644
--- a/src/bin/efreet/efreet_icon_cache_create.c
+++ b/src/bin/efreet/efreet_icon_cache_create.c
@@ -38,38 +38,36 @@ static Eina_Hash *icon_themes = NULL;
 static Eina_Bool
 cache_directory_modified(Eina_Hash *dirs, const char *dir)
 {
-    Efreet_Cache_Directory *dcache;
-    long long time;
-
-    if (!dirs) return EINA_TRUE;
-
-    time = ecore_file_mod_time(dir);
-    if (!time)
-      return EINA_FALSE;
-    dcache = eina_hash_find(dirs, dir);
-    if (!dcache)
-    {
+   Efreet_Cache_Directory *dcache;
+   Efreet_Cache_Check check;
+
+   if (!dirs) return EINA_TRUE;
+   if (!efreet_file_cache_fill(dir, &check)) return EINA_FALSE;
+   dcache = eina_hash_find(dirs, dir);
+   if (!dcache)
+     {
         dcache = malloc(sizeof (Efreet_Cache_Directory));
         if (!dcache) return EINA_TRUE;
-
-        dcache->modified_time = time;
+        dcache->check = check;
         eina_hash_add(dirs, dir, dcache);
-    }
-    else if (dcache->modified_time == time) return EINA_FALSE;
-    dcache->modified_time = time;
-
-    return EINA_TRUE;
+     }
+   else if (efreet_file_cache_check(&check, &dcache->check))
+     return EINA_FALSE;
+   else
+     dcache->check = check;
+   return EINA_TRUE;
 }
 
 static Eina_Bool
 cache_extension_lookup(const char *ext)
 {
-    unsigned int i;
+   unsigned int i;
 
-    for (i = 0; i < exts->count; ++i)
-        if (!strcmp(exts->data[i], ext))
-            return EINA_TRUE;
-    return EINA_FALSE;
+   for (i = 0; i < exts->count; ++i)
+     {
+        if (!strcmp(exts->data[i], ext)) return EINA_TRUE;
+     }
+   return EINA_FALSE;
 }
 
 static Eina_Bool
@@ -223,6 +221,37 @@ check_fallback_changed(Efreet_Cache_Icon_Theme *theme)
     return EINA_FALSE;
 }
 
+typedef struct
+{
+  char *path;
+  int name_start;
+} Scanned_Entry;
+
+static Eina_Hash *already_scanned_path = NULL;
+
+static void
+cache_theme_change_verify(Efreet_Cache_Icon_Theme *theme)
+{
+   Eina_Bool changed = EINA_FALSE;
+   Eina_List *l;
+   Efreet_Icon_Theme_Directory *d;
+   char buf[PATH_MAX], *tdir, *sep;
+
+   tdir = strdup(theme->path);
+   sep = strrchr(tdir, '/');
+   if (sep) *sep = 0;
+   EINA_LIST_FOREACH(theme->theme.directories, l, d)
+     {
+        snprintf(buf, sizeof(buf), "%s/%s", tdir, d->name);
+        if (cache_directory_modified(theme->dirs, buf))
+          {
+             changed = EINA_TRUE;
+          }
+     }
+   free(tdir);
+   if (changed) theme->changed = changed;
+}
+
 static Eina_Bool
 cache_scan_path_dir(Efreet_Icon_Theme *theme,
                     const char *path,
@@ -232,29 +261,63 @@ cache_scan_path_dir(Efreet_Icon_Theme *theme,
     Eina_Iterator *it;
     char buf[PATH_MAX];
     Eina_File_Direct_Info *entry;
+    Eina_List *dirs = NULL;
+    Eina_List *l;
+    char *ext;
+    Scanned_Entry *scentry;
 
     snprintf(buf, sizeof(buf), "%s/%s", path, dir->name);
+    // we wont ever free this - no point
+    if (!already_scanned_path)
+      already_scanned_path = eina_hash_string_superfast_new(NULL);
+    dirs = eina_hash_find(already_scanned_path, buf);
+    if ((intptr_t)dirs == (intptr_t)(-1L)) return EINA_TRUE;
+    else if (!dirs)
+    {
+       it = eina_file_stat_ls(buf);
+       if (!it)
+         {
+            eina_hash_add(already_scanned_path, buf, (void *)(intptr_t)(-1L));
+            return EINA_TRUE;
+         }
+
+       EINA_ITERATOR_FOREACH(it, entry)
+         {
+            if (entry->type == EINA_FILE_DIR) continue;
+            ext = strrchr(entry->path + entry->name_start, '.');
+            if (!ext || !cache_extension_lookup(ext)) continue;
+            scentry = malloc(sizeof(Scanned_Entry));
+            if (!scentry)
+              {
+                 ERR("Out of memory");
+                 exit(1);
+              }
+            scentry->name_start = entry->name_start;
+            scentry->path = strdup(entry->path);
+            if (!scentry->path)
+              {
+                 ERR("Out of memory");
+                 exit(1);
+              }
+            dirs = eina_list_append(dirs, scentry);
+         }
+       eina_iterator_free(it);
+       if (dirs)
+         eina_hash_add(already_scanned_path, buf, dirs);
+       else
+         eina_hash_add(already_scanned_path, buf, (void *)(intptr_t)(-1L));
+    }
 
-    it = eina_file_stat_ls(buf);
-    if (!it) return EINA_TRUE;
-
-    EINA_ITERATOR_FOREACH(it, entry)
+   EINA_LIST_FOREACH(dirs, l, scentry)
     {
         Efreet_Cache_Icon *icon;
         char *name;
-        char *ext;
         const char **tmp;
         unsigned int i;
 
-        if (entry->type == EINA_FILE_DIR)
-            continue;
-
-        ext = strrchr(entry->path + entry->name_start, '.');
-        if (!ext || !cache_extension_lookup(ext))
-            continue;
-
+        ext = strrchr(scentry->path + scentry->name_start, '.');
         /* icon with known extension */
-        name = entry->path + entry->name_start;
+        name = scentry->path + scentry->name_start;
         *ext = '\0';
 
         icon = eina_hash_find(icons, name);
@@ -284,7 +347,7 @@ cache_scan_path_dir(Efreet_Icon_Theme *theme,
 
             /* check if the path already exist */
             for (j = 0; j < icon->icons[i]->paths_count; ++j)
-                if (!strcmp(icon->icons[i]->paths[j], entry->path))
+                if (!strcmp(icon->icons[i]->paths[j], scentry->path))
                     break;
 
             if (j != icon->icons[i]->paths_count)
@@ -348,12 +411,9 @@ cache_scan_path_dir(Efreet_Icon_Theme *theme,
            exit(1);
         }
         icon->icons[i]->paths = tmp;
-        icon->icons[i]->paths[icon->icons[i]->paths_count] = eina_stringshare_add(entry->path);
+        icon->icons[i]->paths[icon->icons[i]->paths_count] = eina_stringshare_add(scentry->path);
         eina_array_push(strs, icon->icons[i]->paths[icon->icons[i]->paths_count++]);
     }
-
-    eina_iterator_free(it);
-
     return EINA_TRUE;
 }
 
@@ -364,7 +424,9 @@ cache_scan_path(Efreet_Icon_Theme *theme, Eina_Hash *icons, const char *path)
     Efreet_Icon_Theme_Directory *dir;
 
     EINA_LIST_FOREACH(theme->directories, l, dir)
+     {
         if (!cache_scan_path_dir(theme, path, dir, icons)) return EINA_FALSE;
+     }
 
     return EINA_TRUE;
 }
@@ -511,13 +573,13 @@ icon_theme_index_read(Efreet_Cache_Icon_Theme *theme, const char *path)
     Efreet_Ini *ini;
     Efreet_Icon_Theme_Directory *dir;
     const char *tmp;
-    long long time;
+    Efreet_Cache_Check check;
 
     if (!theme || !path) return EINA_FALSE;
 
-    time = ecore_file_mod_time(path);
-    if (!time) return EINA_FALSE;
-    if (theme->path && !strcmp(theme->path, path) && theme->last_cache_check >= time)
+    if (!efreet_file_cache_fill(path, &check)) return EINA_FALSE;
+    if (theme->path && !strcmp(theme->path, path) &&
+        efreet_file_cache_check(&check, &(theme->check)))
     {
         /* no change */
         theme->valid = 1;
@@ -528,8 +590,7 @@ icon_theme_index_read(Efreet_Cache_Icon_Theme *theme, const char *path)
         theme->path = eina_stringshare_add(path);
         eina_array_push(strs, theme->path);
     }
-    if (time > theme->last_cache_check)
-        theme->last_cache_check = time;
+    theme->check = check;
     theme->changed = 1;
 
     ini = efreet_ini_new(path);
@@ -644,10 +705,10 @@ cache_theme_scan(const char *dir)
         Efreet_Cache_Icon_Theme *theme;
         const char *name;
         const char *path;
-        long long time;
+        Efreet_Cache_Check check;
+        Efreet_Cache_Directory *d;
 
-        time = ecore_file_mod_time(entry->path);
-        if (!time) continue;
+        if (!efreet_file_cache_fill(entry->path, &check)) continue;
 
         if ((entry->type != EINA_FILE_DIR) &&
             (entry->type != EINA_FILE_LNK))
@@ -669,10 +730,26 @@ cache_theme_scan(const char *dir)
                           (void *)theme->theme.name.internal, theme);
             theme->changed = 1;
         }
-        if (time > theme->last_cache_check)
-        {
-            theme->last_cache_check = time;
+
+       d = NULL;
+       if (theme->dirs)
+         d = eina_hash_find(theme->dirs, entry->path);
+       if (!d)
+         {
+            if (!theme->dirs)
+              theme->dirs = eina_hash_string_superfast_new(NULL);
             theme->changed = 1;
+            d = NEW(Efreet_Cache_Directory, 1);
+            d->check = check;
+            eina_hash_add(theme->dirs, entry->path, d);
+         }
+       else
+         {
+            if (!efreet_file_cache_check(&check, &(d->check)))
+              {
+                 d->check = check;
+                 theme->changed = 1;
+              }
         }
 
         /* TODO: We need to handle change in order of included paths */
@@ -732,8 +809,7 @@ icon_theme_free(Efreet_Cache_Icon_Theme *theme)
 
     eina_list_free(theme->theme.paths);
     eina_list_free(theme->theme.inherits);
-    EINA_LIST_FREE(theme->theme.directories, data)
-        free(data);
+    EINA_LIST_FREE(theme->theme.directories, data) free(data);
     if (theme->dirs) efreet_hash_free(theme->dirs, free);
     free(theme);
 }
@@ -926,7 +1002,7 @@ main(int argc, char **argv)
         if (!theme->theme.name.name) continue;
 #endif
         INF("scan theme %s", theme->theme.name.name);
-
+        cache_theme_change_verify(theme);
         theme->changed = check_changed(theme);
         if (flush)
             theme->changed = EINA_TRUE;
@@ -981,18 +1057,18 @@ main(int argc, char **argv)
 
                 icons_it = eina_hash_iterator_tuple_new(icons);
                 EINA_ITERATOR_FOREACH(icons_it, tuple)
-                    eet_data_write(icon_ef, icon_edd, tuple->key, tuple->data, 1);
+                    eet_data_write(icon_ef, icon_edd, tuple->key, tuple->data, EET_COMPRESSION_SUPERFAST);
                 eina_iterator_free(icons_it);
 
-                INF("theme change: %s %lld", theme->theme.name.internal, theme->last_cache_check);
-                eet_data_write(theme_ef, theme_edd, theme->theme.name.internal, theme, 1);
+                INF("theme change: %s %lld", theme->theme.name.internal, theme->check.mtime);
+                eet_data_write(theme_ef, theme_edd, theme->theme.name.internal, theme, EET_COMPRESSION_SUPERFAST);
             }
             eina_hash_free(themes);
             eina_hash_free(icons);
             changed = EINA_TRUE;
         }
 
-        eet_data_write(icon_ef, efreet_version_edd(), EFREET_CACHE_VERSION, icon_version, 1);
+        eet_data_write(icon_ef, efreet_version_edd(), EFREET_CACHE_VERSION, icon_version, EET_COMPRESSION_SUPERFAST);
         eet_close(icon_ef);
         efreet_setowner(efreet_icon_cache_file(theme->theme.name.internal));
         free(icon_version);
@@ -1064,17 +1140,17 @@ main(int argc, char **argv)
 
             icons_it = eina_hash_iterator_tuple_new(icons);
             EINA_ITERATOR_FOREACH(icons_it, tuple)
-                eet_data_write(icon_ef, fallback_edd, tuple->key, tuple->data, 1);
+                eet_data_write(icon_ef, fallback_edd, tuple->key, tuple->data, EET_COMPRESSION_SUPERFAST);
             eina_iterator_free(icons_it);
         }
         eina_hash_free(icons);
 
-        eet_data_write(theme_ef, theme_edd, EFREET_CACHE_ICON_FALLBACK, theme, 1);
+        eet_data_write(theme_ef, theme_edd, EFREET_CACHE_ICON_FALLBACK, theme, EET_COMPRESSION_SUPERFAST);
     }
 
     icon_theme_free(theme);
 
-    eet_data_write(icon_ef, efreet_version_edd(), EFREET_CACHE_VERSION, icon_version, 1);
+    eet_data_write(icon_ef, efreet_version_edd(), EFREET_CACHE_VERSION, icon_version, EET_COMPRESSION_SUPERFAST);
     eet_close(icon_ef);
     efreet_setowner(efreet_icon_cache_file(EFREET_CACHE_ICON_FALLBACK));
     free(icon_version);
@@ -1082,7 +1158,7 @@ main(int argc, char **argv)
     eina_hash_free(icon_themes);
 
     /* save data */
-    eet_data_write(theme_ef, efreet_version_edd(), EFREET_CACHE_VERSION, theme_version, 1);
+    eet_data_write(theme_ef, efreet_version_edd(), EFREET_CACHE_VERSION, theme_version, EET_COMPRESSION_SUPERFAST);
 
     eet_close(theme_ef);
     theme_ef = NULL;
diff --git a/src/lib/efreet/efreet_cache.c b/src/lib/efreet/efreet_cache.c
index f859c630f0..2b5d0c9f5f 100644
--- a/src/lib/efreet/efreet_cache.c
+++ b/src/lib/efreet/efreet_cache.c
@@ -1,3 +1,4 @@
+
 #ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
@@ -536,6 +537,137 @@ efreet_desktop_util_cache_file(void)
 /*
  * Needs EAPI because of helper binaries
  */
+#define SHSH(n, v) ((((v) << (n)) & 0xffffffff) | ((v) >> (32 - (n))))
+
+static inline int
+int_to_bigendian(int in)
+{
+   static const unsigned char test[4] = { 0x11, 0x22, 0x33, 0x44 };
+   static const unsigned int *test_i = (const unsigned int *)test;
+   if (test_i[0] == 0x44332211) return eina_swap32(in);
+   return in;
+}
+
+static void
+sha1(unsigned char *data, int size, unsigned char *dst)
+{
+   unsigned int digest[5], word[80], wa, wb, wc, wd, we, t;
+   unsigned char buf[64], *d;
+   int idx, left, i;
+   const unsigned int magic[4] =
+     { 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6 };
+
+   idx = 0;
+   digest[0] = 0x67452301; digest[1] = 0xefcdab89; digest[2] = 0x98badcfe;
+   digest[3] = 0x10325476; digest[4] = 0xc3d2e1f0;
+
+   memset(buf, 0, sizeof(buf));
+   for (left = size, d = data; left > 0; left--, d++)
+     {
+        if ((idx == 0) && (left < 64))
+          {
+             memset(buf, 0, 60);
+             buf[60] = (size >> 24) & 0xff;
+             buf[61] = (size >> 16) & 0xff;
+             buf[62] = (size >> 8) & 0xff;
+             buf[63] = (size) & 0xff;
+          }
+        buf[idx] = *d;
+        idx++;
+        if ((idx == 64) || (left == 1))
+          {
+             if ((left == 1) && (idx < 64)) buf[idx] = 0x80;
+             for (i = 0; i < 16; i++)
+               {
+                  word[i]  = (unsigned int)buf[(i * 4)    ] << 24;
+                  word[i] |= (unsigned int)buf[(i * 4) + 1] << 16;
+                  word[i] |= (unsigned int)buf[(i * 4) + 2] << 8;
+                  word[i] |= (unsigned int)buf[(i * 4) + 3];
+               }
+             for (i = 16; i < 80; i++)
+               word[i] = SHSH(1,
+                              word[i - 3 ] ^ word[i - 8 ] ^
+                              word[i - 14] ^ word[i - 16]);
+             wa = digest[0]; wb = digest[1]; wc = digest[2];
+             wd = digest[3]; we = digest[4];
+             for (i = 0; i < 80; i++)
+               {
+                  if (i < 20)
+                    t = SHSH(5, wa) + ((wb & wc) | ((~wb) & wd)) +
+                        we + word[i] + magic[0];
+                  else if (i < 40)
+                    t = SHSH(5, wa) + (wb ^ wc ^ wd) +
+                        we + word[i] + magic[1];
+                  else if (i < 60)
+                    t = SHSH(5, wa) + ((wb & wc) | (wb & wd) | (wc & wd)) +
+                        we + word[i] + magic[2];
+                  else if (i < 80)
+                    t = SHSH(5, wa) + (wb ^ wc ^ wd) +
+                        we + word[i] + magic[3];
+                  we = wd;
+                  wd = wc;
+                  wc = SHSH(30, wb);
+                  wb = wa;
+                  wa = t;
+               }
+             digest[0] += wa; digest[1] += wb; digest[2] += wc;
+             digest[3] += wd; digest[4] += we;
+             idx = 0;
+          }
+     }
+   t = int_to_bigendian(digest[0]); digest[0] = t;
+   t = int_to_bigendian(digest[1]); digest[1] = t;
+   t = int_to_bigendian(digest[2]); digest[2] = t;
+   t = int_to_bigendian(digest[3]); digest[3] = t;
+   t = int_to_bigendian(digest[4]); digest[4] = t;
+   memcpy(dst, digest, 5 * 4);
+}
+
+EAPI Eina_Bool
+efreet_file_cache_fill(const char *file, Efreet_Cache_Check *check)
+{
+   struct stat st;
+   ssize_t size = 0;
+   char link[PATH_MAX];
+
+   if (lstat(file, &st) != 0) return EINA_FALSE;
+   if (S_ISLNK(st.st_mode))
+     {
+        size = readlink(file, link, sizeof(link));
+        if ((size > 0) && ((size_t)size >= sizeof(link))) return EINA_FALSE;
+        if (stat(file, &st) != 0) return EINA_FALSE;
+     }
+
+   memset(check, 0, sizeof(Efreet_Cache_Check));
+   if (size > 0) sha1((unsigned char *)link, size, check->link_sha1);
+   else memset(check->link_sha1, 0, sizeof(check->link_sha1));
+   check->uid    = st.st_uid;
+   check->gid    = st.st_gid;
+   check->size   = st.st_size;
+   check->blocks = st.st_blocks;
+   check->mtime  = st.st_mtime;
+   check->chtime = st.st_ctime;
+   check->mode   = st.st_mode;
+   return EINA_TRUE;
+}
+
+EAPI Eina_Bool // true if matches
+efreet_file_cache_check(const Efreet_Cache_Check *check1, const Efreet_Cache_Check *check2)
+{
+   if ((check1->mtime  != check2->mtime ) ||
+       (check1->size   != check2->size  ) ||
+       (check1->chtime != check2->chtime ) ||
+       (check1->blocks != check2->blocks) ||
+       (check1->mode   != check2->mode  ) ||
+       (check1->uid    != check2->uid   ) ||
+       (check1->gid    != check2->gid   ) ||
+       (memcmp(check1->link_sha1, check2->link_sha1, 20) != 0))
+     {
+        return EINA_FALSE;
+     }
+   return EINA_TRUE; // matches
+}
+
 EAPI Eet_Data_Descriptor *
 efreet_version_edd(void)
 {
@@ -691,8 +823,22 @@ efreet_icon_directory_edd(void)
     directory_edd = eet_data_descriptor_file_new(&eddc);
     if (!directory_edd) return NULL;
 
-    EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
-                                  "modified_time", modified_time, EET_T_LONG_LONG);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
+                                 "check.uid", check.uid, EET_T_LONG_LONG);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
+                                 "check.gid", check.gid, EET_T_LONG_LONG);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
+                                 "check.size", check.size, EET_T_LONG_LONG);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
+                                 "check.blocks", check.blocks, EET_T_LONG_LONG);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
+                                 "check.mtime", check.mtime, EET_T_LONG_LONG);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
+                                 "check.chtime", check.chtime, EET_T_LONG_LONG);
+   EET_DATA_DESCRIPTOR_ADD_BASIC(directory_edd, Efreet_Cache_Directory,
+                                 "check.mode", check.mode, EET_T_INT);
+   EET_DATA_DESCRIPTOR_ADD_BASIC_ARRAY(directory_edd, Efreet_Cache_Directory,
+                                       "check.link_sha1", check.link_sha1, EET_T_CHAR);
 
     return directory_edd;
 }
@@ -790,7 +936,21 @@ efreet_icon_theme_edd(Eina_Bool cache)
     if (cache)
     {
         EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
-                                      "last_cache_check", last_cache_check, EET_T_LONG_LONG);
+                                      "check.uid", check.uid, EET_T_LONG_LONG);
+        EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
+                                      "check.gid", check.gid, EET_T_LONG_LONG);
+        EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
+                                      "check.size", check.size, EET_T_LONG_LONG);
+        EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
+                                      "check.blocks", check.blocks, EET_T_LONG_LONG);
+        EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
+                                      "check.mtime", check.mtime, EET_T_LONG_LONG);
+        EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
+                                      "check.chtime", check.chtime, EET_T_LONG_LONG);
+        EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
+                                      "check.mode", check.mode, EET_T_INT);
+        EET_DATA_DESCRIPTOR_ADD_BASIC_ARRAY(icon_theme_edd, Efreet_Cache_Icon_Theme,
+                                            "check.link_sha1", check.link_sha1, EET_T_CHAR);
 
         EET_DATA_DESCRIPTOR_ADD_BASIC(icon_theme_edd, Efreet_Cache_Icon_Theme,
                                       "path", path, EET_T_STRING);
diff --git a/src/lib/efreet/efreet_cache_private.h b/src/lib/efreet/efreet_cache_private.h
index 97dbd45a1e..1edbb3b5ff 100644
--- a/src/lib/efreet/efreet_cache_private.h
+++ b/src/lib/efreet/efreet_cache_private.h
@@ -38,11 +38,20 @@
 # endif
 #endif
 
+typedef struct _Efreet_Cache_Check Efreet_Cache_Check;
+
+typedef struct _Efreet_Cache_Icon_Theme Efreet_Cache_Icon_Theme;
+typedef struct _Efreet_Cache_Directory Efreet_Cache_Directory;
+typedef struct _Efreet_Cache_Desktop Efreet_Cache_Desktop;
+
 EAPI const char *efreet_desktop_util_cache_file(void);
 EAPI const char *efreet_desktop_cache_file(void);
 EAPI const char *efreet_icon_cache_file(const char *theme);
 EAPI const char *efreet_icon_theme_cache_file(void);
 
+EAPI Eina_Bool efreet_file_cache_fill(const char *file, Efreet_Cache_Check *check);
+EAPI Eina_Bool efreet_file_cache_check(const Efreet_Cache_Check *check1, const Efreet_Cache_Check *check2);
+
 EAPI Eet_Data_Descriptor *efreet_version_edd(void);
 EAPI Eet_Data_Descriptor *efreet_desktop_edd(void);
 EAPI Eet_Data_Descriptor *efreet_hash_array_string_edd(void);
@@ -52,15 +61,23 @@ EAPI Eet_Data_Descriptor *efreet_icon_theme_edd(Eina_Bool cache);
 EAPI Eet_Data_Descriptor *efreet_icon_edd(void);
 EAPI Eet_Data_Descriptor *efreet_icon_fallback_edd(void);
 
-typedef struct _Efreet_Cache_Icon_Theme Efreet_Cache_Icon_Theme;
-typedef struct _Efreet_Cache_Directory Efreet_Cache_Directory;
-typedef struct _Efreet_Cache_Desktop Efreet_Cache_Desktop;
+struct _Efreet_Cache_Check
+{
+   unsigned long long uid;
+   unsigned long long gid;
+   unsigned long long size;
+   unsigned long long blocks;
+   unsigned long long mtime;
+   unsigned long long chtime;
+   unsigned int       mode;
+   unsigned char      link_sha1[20];
+};
 
 struct _Efreet_Cache_Icon_Theme
 {
     Efreet_Icon_Theme theme;
 
-    long long last_cache_check; /**< Last time the cache was checked */
+    Efreet_Cache_Check check; /**< relevant stat info from last check */
 
     Eina_Hash *dirs;            /**< All possible icon paths for this theme */
 
@@ -73,13 +90,14 @@ struct _Efreet_Cache_Icon_Theme
 
 struct _Efreet_Cache_Directory
 {
-    long long modified_time;
+    Efreet_Cache_Check check; /**< relevant stat info from last check */
 };
 
 struct _Efreet_Cache_Desktop
 {
     Efreet_Desktop desktop;
 
+    Efreet_Cache_Check check; /**< relevant stat info from last check */
     double check_time; /**< Last time we check for disk modification */
 };