Enlightenment CVS committal
Author : raster
Project : e17
Module : libs/evas
Dir : e17/libs/evas/src/lib/file
Modified Files:
evas_module.c
Log Message:
and i implemented module UNLOADING. given enough cycles of non-use of a
module and no references, it will get.... UNLOADED :)
===================================================================
RCS file: /cvs/e/e17/libs/evas/src/lib/file/evas_module.c,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -3 -r1.18 -r1.19
--- evas_module.c 6 Sep 2006 07:33:40 -0000 1.18
+++ evas_module.c 18 Sep 2006 09:40:29 -0000 1.19
@@ -158,7 +158,7 @@
{
Evas_Module *em;
- em = malloc(sizeof(Evas_Module));
+ em = calloc(1, sizeof(Evas_Module));
if (!em) continue;
em->name = strdup(de->d_name);
em->path = strdup(mp->path);
@@ -223,6 +223,7 @@
if (em->loaded) return 1;
+// printf("LOAD %s\n", em->name);
snprintf(buf, sizeof(buf), "%s/%s/%s/module.so", em->path, em->name,
MODULE_ARCH);
if (!evas_file_path_exists(buf))
{
@@ -282,6 +283,76 @@
em->loaded = 0;
}
+void
+evas_module_ref(Evas_Module *em)
+{
+ em->ref++;
+// printf("M: %s ref++ = %i\n", em->name, em->ref);
+}
+
+void
+evas_module_unref(Evas_Module *em)
+{
+ em->ref--;
+// printf("M: %s ref-- = %i\n", em->name, em->ref);
+}
+
+static int use_count = 0;
+
+void
+evas_module_use(Evas_Module *em)
+{
+ em->last_used = use_count;
+}
+
+void
+evas_module_clean(void)
+{
+ static int call_count = 0;
+ int ago;
+ int noclean = -1;
+ Evas_List *l;
+ Evas_Module *em;
+
+ /* only clean modules every 32 calls */
+ call_count++;
+ if (call_count <= 32) return;
+ call_count = 0;
+
+ if (noclean == -1)
+ {
+ if (getenv("EVAS_NOCLEAN"))
+ {
+ noclean = 1;
+ }
+ noclean = 0;
+ }
+ if (noclean == 1) return;
+
+ /* incriment use counter = 28bits */
+ use_count++;
+ if (use_count > 0x0fffffff) use_count = 0;
+
+// printf("CLEAN!\n");
+ /* go through all modules */
+ for (l = evas_modules; l; l = l->next)
+ {
+ em = l->data;
+// printf("M %s %i %i\n", em->name, em->ref, em->loaded);
+ /* if the module is refernced - skip */
+ if ((em->ref > 0) || (!em->loaded)) continue;
+ /* how many clean cycles ago was this module last used */
+ ago = use_count - em->last_used;
+ if (em->last_used > use_count) ago += 0x10000000;
+ /* if it was used last more than N clean cycles ago - unload */
+ if (ago > 3)
+ {
+// printf(" UNLOAD %s\n", em->name);
+ evas_module_unload(em);
+ }
+ }
+}
+
/* will dlclose all the modules loaded and free all the structs */
void
evas_module_shutdown(void)
@@ -329,6 +400,9 @@
{
if (evas_module_load(em))
{
+ /* FIXME: no way to unref */
+ evas_module_ref(em);
+ evas_module_use(em);
*funcs = *((Evas_Func *)(em->functions));
return 1;
}
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