1 files changed, 172 insertions, 0 deletions

diff --git a/libraries/eina/src/lib/eina_iterator.c b/libraries/eina/src/lib/eina_iterator.c
new file mode 100644
index 0000000..0721066
--- /dev/null
+++ b/libraries/eina/src/lib/eina_iterator.c
@@ -0,0 +1,172 @@
+/* EINA - EFL data type library
+ * Copyright (C) 2002-2008 Cedric Bail
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library;
+ * if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+
+#include "eina_config.h"
+#include "eina_private.h"
+
+/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
+#include "eina_safety_checks.h"
+#include "eina_iterator.h"
+
+/*============================================================================*
+*                                  Local                                     *
+*============================================================================*/
+
+/**
+ * @cond LOCAL
+ */
+
+static const char EINA_MAGIC_ITERATOR_STR[] = "Eina Iterator";
+
+#define EINA_MAGIC_CHECK_ITERATOR(d)                            \
+   do {                                                          \
+        if (!EINA_MAGIC_CHECK(d, EINA_MAGIC_ITERATOR)) {              \
+             EINA_MAGIC_FAIL(d, EINA_MAGIC_ITERATOR); }                  \
+     } while(0)
+
+/**
+ * @endcond
+ */
+
+
+/*============================================================================*
+*                                 Global                                     *
+*============================================================================*/
+
+/**
+ * @internal
+ * @brief Initialize the iterator module.
+ *
+ * @return #EINA_TRUE on success, #EINA_FALSE on failure.
+ *
+ * This function sets up the iterator module of Eina. It is called by
+ * eina_init().
+ *
+ * @see eina_init()
+ */
+Eina_Bool
+eina_iterator_init(void)
+{
+   return eina_magic_string_set(EINA_MAGIC_ITERATOR, EINA_MAGIC_ITERATOR_STR);
+}
+
+/**
+ * @internal
+ * @brief Shut down the iterator module.
+ *
+ * @return #EINA_TRUE on success, #EINA_FALSE on failure.
+ *
+ * This function shuts down the iterator module set up by
+ * eina_iterator_init(). It is called by eina_shutdown().
+ *
+ * @see eina_shutdown()
+ */
+Eina_Bool
+eina_iterator_shutdown(void)
+{
+   return EINA_TRUE;
+}
+
+/*============================================================================*
+*                                   API                                      *
+*============================================================================*/
+
+EAPI void
+eina_iterator_free(Eina_Iterator *iterator)
+{
+   EINA_MAGIC_CHECK_ITERATOR(iterator);
+   EINA_SAFETY_ON_NULL_RETURN(iterator);
+   EINA_SAFETY_ON_NULL_RETURN(iterator->free);
+   iterator->free(iterator);
+}
+
+EAPI void *
+eina_iterator_container_get(Eina_Iterator *iterator)
+{
+   EINA_MAGIC_CHECK_ITERATOR(iterator);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(iterator,                NULL);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(iterator->get_container, NULL);
+   return iterator->get_container(iterator);
+}
+
+EAPI Eina_Bool
+eina_iterator_next(Eina_Iterator *iterator, void **data)
+{
+   if (!iterator)
+      return EINA_FALSE;
+
+   EINA_MAGIC_CHECK_ITERATOR(iterator);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(iterator,       EINA_FALSE);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(iterator->next, EINA_FALSE);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(data,           EINA_FALSE);
+   return iterator->next(iterator, data);
+}
+
+EAPI void
+eina_iterator_foreach(Eina_Iterator *iterator,
+                      Eina_Each_Cb cb,
+                      const void *fdata)
+{
+   const void *container;
+   void *data;
+
+   EINA_MAGIC_CHECK_ITERATOR(iterator);
+   EINA_SAFETY_ON_NULL_RETURN(iterator);
+   EINA_SAFETY_ON_NULL_RETURN(iterator->get_container);
+   EINA_SAFETY_ON_NULL_RETURN(iterator->next);
+   EINA_SAFETY_ON_NULL_RETURN(cb);
+
+   if (!eina_iterator_lock(iterator)) return ;
+
+   container = iterator->get_container(iterator);
+   while (iterator->next(iterator, &data) == EINA_TRUE) {
+        if (cb(container, data, (void *)fdata) != EINA_TRUE)
+           goto on_exit;
+     }
+
+ on_exit:
+   (void) eina_iterator_unlock(iterator);
+}
+
+EAPI Eina_Bool
+eina_iterator_lock(Eina_Iterator *iterator)
+{
+   EINA_MAGIC_CHECK_ITERATOR(iterator);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(iterator, EINA_FALSE);
+
+   if (iterator->lock)
+      return iterator->lock(iterator);
+   return EINA_TRUE;
+}
+
+EAPI Eina_Bool
+eina_iterator_unlock(Eina_Iterator *iterator)
+{
+   EINA_MAGIC_CHECK_ITERATOR(iterator);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(iterator, EINA_FALSE);
+
+   if (iterator->unlock)
+      return iterator->unlock(iterator);
+   return EINA_TRUE;
+}