1 files changed, 491 insertions, 0 deletions

diff --git a/libraries/eina/src/lib/eina_array.c b/libraries/eina/src/lib/eina_array.c
new file mode 100644
index 0000000..5a850ac
--- /dev/null
+++ b/libraries/eina/src/lib/eina_array.c
@@ -0,0 +1,491 @@
+/* EINA - EFL data type library
+ * Copyright (C) 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 <assert.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "eina_config.h"
+#include "eina_private.h"
+#include "eina_error.h"
+#include "eina_log.h"
+
+/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
+#include "eina_safety_checks.h"
+#include "eina_array.h"
+
+/*============================================================================*
+ *                                  Local                                     *
+ *============================================================================*/
+
+/**
+ * @cond LOCAL
+ */
+
+static const char EINA_MAGIC_ARRAY_STR[] = "Eina Array";
+static const char EINA_MAGIC_ARRAY_ITERATOR_STR[] = "Eina Array Iterator";
+static const char EINA_MAGIC_ARRAY_ACCESSOR_STR[] = "Eina Array Accessor";
+
+#define EINA_MAGIC_CHECK_ARRAY(d)                       \
+   do {                                                  \
+        if (!EINA_MAGIC_CHECK(d, EINA_MAGIC_ARRAY)) {        \
+             EINA_MAGIC_FAIL(d, EINA_MAGIC_ARRAY); }            \
+     } while (0)
+
+#define EINA_MAGIC_CHECK_ARRAY_ITERATOR(d, ...)                 \
+   do {                                                          \
+        if (!EINA_MAGIC_CHECK(d, EINA_MAGIC_ARRAY_ITERATOR))       \
+          {                                                        \
+             EINA_MAGIC_FAIL(d, EINA_MAGIC_ARRAY_ITERATOR);        \
+             return __VA_ARGS__;                                   \
+          }                                                        \
+     } while (0)
+
+#define EINA_MAGIC_CHECK_ARRAY_ACCESSOR(d, ...)                 \
+   do {                                                          \
+        if (!EINA_MAGIC_CHECK(d, EINA_MAGIC_ARRAY_ACCESSOR))       \
+          {                                                        \
+             EINA_MAGIC_FAIL(d, EINA_MAGIC_ACCESSOR);              \
+             return __VA_ARGS__;                                   \
+          }                                                        \
+     } while (0)
+
+
+typedef struct _Eina_Iterator_Array Eina_Iterator_Array;
+struct _Eina_Iterator_Array
+{
+   Eina_Iterator iterator;
+
+   const Eina_Array *array;
+   unsigned int index;
+
+   EINA_MAGIC
+};
+
+typedef struct _Eina_Accessor_Array Eina_Accessor_Array;
+struct _Eina_Accessor_Array
+{
+   Eina_Accessor accessor;
+   const Eina_Array *array;
+   EINA_MAGIC
+};
+
+static int _eina_array_log_dom = -1;
+
+#ifdef ERR
+#undef ERR
+#endif
+#define ERR(...) EINA_LOG_DOM_ERR(_eina_array_log_dom, __VA_ARGS__)
+
+#ifdef DBG
+#undef DBG
+#endif
+#define DBG(...) EINA_LOG_DOM_DBG(_eina_array_log_dom, __VA_ARGS__)
+
+static void        eina_array_iterator_free(Eina_Iterator_Array *it) EINA_ARG_NONNULL(1);
+static Eina_Array *eina_array_iterator_get_container(Eina_Iterator_Array *it) EINA_ARG_NONNULL(1);
+static Eina_Bool   eina_array_iterator_next(Eina_Iterator_Array *it,
+                                            void **data) EINA_ARG_NONNULL(1);
+
+static Eina_Bool   eina_array_accessor_get_at(Eina_Accessor_Array *it,
+                                              unsigned int idx,
+                                              void **data) EINA_ARG_NONNULL(1);
+static Eina_Array *eina_array_accessor_get_container(Eina_Accessor_Array *it) EINA_ARG_NONNULL(1);
+static void        eina_array_accessor_free(Eina_Accessor_Array *it) EINA_ARG_NONNULL(1);
+
+static Eina_Bool
+eina_array_iterator_next(Eina_Iterator_Array *it, void **data)
+{
+   EINA_MAGIC_CHECK_ARRAY_ITERATOR(it, EINA_FALSE);
+
+   if (!(it->index < eina_array_count_get(it->array)))
+      return EINA_FALSE;
+
+   if (data)
+      *data = eina_array_data_get(it->array, it->index);
+
+   it->index++;
+   return EINA_TRUE;
+}
+
+static Eina_Array *
+eina_array_iterator_get_container(Eina_Iterator_Array *it)
+{
+   EINA_MAGIC_CHECK_ARRAY_ITERATOR(it, NULL);
+   return (Eina_Array *)it->array;
+}
+
+static void
+eina_array_iterator_free(Eina_Iterator_Array *it)
+{
+   EINA_MAGIC_CHECK_ARRAY_ITERATOR(it);
+   MAGIC_FREE(it);
+}
+
+static Eina_Bool
+eina_array_accessor_get_at(Eina_Accessor_Array *it,
+                           unsigned int idx,
+                           void **data)
+{
+   EINA_MAGIC_CHECK_ARRAY_ACCESSOR(it, EINA_FALSE);
+
+   if (!(idx < eina_array_count_get(it->array)))
+      return EINA_FALSE;
+
+   if (data)
+      *data = eina_array_data_get(it->array, idx);
+
+   return EINA_TRUE;
+}
+
+static Eina_Array *
+eina_array_accessor_get_container(Eina_Accessor_Array *it)
+{
+   EINA_MAGIC_CHECK_ARRAY_ACCESSOR(it, NULL);
+   return (Eina_Array *)it->array;
+}
+
+static void
+eina_array_accessor_free(Eina_Accessor_Array *it)
+{
+   EINA_MAGIC_CHECK_ARRAY_ACCESSOR(it);
+   MAGIC_FREE(it);
+}
+
+/* used from eina_inline_array.x, thus a needed symbol */
+EAPI Eina_Bool
+eina_array_grow(Eina_Array *array)
+{
+   void **tmp;
+   unsigned int total;
+
+   EINA_SAFETY_ON_NULL_RETURN_VAL(array, EINA_FALSE);
+
+   EINA_MAGIC_CHECK_ARRAY(array);
+
+   total = array->total + array->step;
+   eina_error_set(0);
+   tmp = realloc(array->data, sizeof (void *) * total);
+   if (EINA_UNLIKELY(!tmp))
+     {
+        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
+        return 0;
+     }
+
+   array->total = total;
+   array->data = tmp;
+
+   return 1;
+}
+
+/**
+ * @endcond
+ */
+
+
+/*============================================================================*
+ *                                 Global                                     *
+ *============================================================================*/
+
+/**
+ * @internal
+ * @brief Initialize the array module.
+ *
+ * @return #EINA_TRUE on success, #EINA_FALSE on failure.
+ *
+ * This function sets up the error and magic modules or Eina. It is
+ * called by eina_init().
+ *
+ * @see eina_init()
+ */
+Eina_Bool
+eina_array_init(void)
+{
+   _eina_array_log_dom = eina_log_domain_register("eina_array",
+                                                  EINA_LOG_COLOR_DEFAULT);
+   if (_eina_array_log_dom < 0)
+     {
+        EINA_LOG_ERR("Could not register log domain: eina_array");
+        return EINA_FALSE;
+     }
+
+#define EMS(n) eina_magic_string_static_set(n, n ## _STR)
+   EMS(EINA_MAGIC_ARRAY);
+   EMS(EINA_MAGIC_ARRAY_ITERATOR);
+   EMS(EINA_MAGIC_ARRAY_ACCESSOR);
+#undef EMS
+   return EINA_TRUE;
+}
+
+/**
+ * @internal
+ * @brief Shut down the array module.
+ *
+ * @return #EINA_TRUE on success, #EINA_FALSE on failure.
+ *
+ * This function shuts down the array module set up by
+ * eina_array_init(). It is called by eina_shutdown().
+ *
+ * @see eina_shutdown()
+ */
+Eina_Bool
+eina_array_shutdown(void)
+{
+   eina_log_domain_unregister(_eina_array_log_dom);
+   _eina_array_log_dom = -1;
+   return EINA_TRUE;
+}
+
+/*============================================================================*
+ *                                   API                                      *
+ *============================================================================*/
+
+EAPI Eina_Array *
+eina_array_new(unsigned int step)
+{
+   Eina_Array *array;
+
+   eina_error_set(0);
+   array = malloc(sizeof (Eina_Array));
+   if (!array)
+     {
+        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
+        return NULL;
+     }
+
+   EINA_MAGIC_SET(array, EINA_MAGIC_ARRAY);
+
+   array->version = EINA_ARRAY_VERSION;
+   array->data = NULL;
+   array->total = 0;
+   array->count = 0;
+   array->step = step;
+
+   return array;
+}
+
+EAPI void
+eina_array_free(Eina_Array *array)
+{
+   eina_array_flush(array);
+
+   EINA_SAFETY_ON_NULL_RETURN(array);
+   EINA_MAGIC_CHECK_ARRAY(array);
+   MAGIC_FREE(array);
+}
+
+EAPI void
+eina_array_step_set(Eina_Array *array,
+                    unsigned int sizeof_eina_array,
+                    unsigned int step)
+{
+   EINA_SAFETY_ON_NULL_RETURN(array);
+
+   if (sizeof (Eina_Array) != sizeof_eina_array)
+     {
+        ERR("Unknow Eina_Array size ! Got %i, expected %i !\n",
+            sizeof_eina_array,
+            (int) sizeof (Eina_Array));
+        /* Force memory to zero to provide a small layer of security */
+        memset(array, 0, sizeof_eina_array);
+        return ;
+     }
+
+   array->version = EINA_ARRAY_VERSION;
+   array->data = NULL;
+   array->total = 0;
+   array->count = 0;
+   array->step = step;
+   EINA_MAGIC_SET(array, EINA_MAGIC_ARRAY);
+}
+
+EAPI void
+eina_array_flush(Eina_Array *array)
+{
+   EINA_SAFETY_ON_NULL_RETURN(array);
+   EINA_MAGIC_CHECK_ARRAY(array);
+
+   array->count = 0;
+   array->total = 0;
+
+   if (!array->data)
+      return;
+
+   free(array->data);
+   array->data = NULL;
+}
+
+EAPI Eina_Bool
+eina_array_remove(Eina_Array *array, Eina_Bool (*keep)(void *data,
+                                                       void *gdata),
+                  void *gdata)
+{
+   void **tmp;
+   /* WARNING:
+      The algorithm does exit before using unitialized data. So compiler is
+      giving you a false positiv here too.
+    */
+   void *data = NULL;
+   unsigned int total = 0;
+   unsigned int limit;
+   unsigned int i;
+
+   EINA_SAFETY_ON_NULL_RETURN_VAL(array, EINA_FALSE);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(keep,  EINA_FALSE);
+   EINA_MAGIC_CHECK_ARRAY(array);
+
+   if (array->total == 0)
+      return EINA_TRUE;
+
+   for (i = 0; i < array->count; ++i)
+     {
+        data = eina_array_data_get(array, i);
+
+        if (keep(data, gdata) == EINA_FALSE)
+           break;
+     }
+   limit = i;
+   if (i < array->count)
+      ++i;
+
+   for (; i < array->count; ++i)
+     {
+        data = eina_array_data_get(array, i);
+
+        if (keep(data, gdata) == EINA_TRUE)
+           break;
+     }
+   /* Special case all objects that need to stay are at the beginning of the array. */
+   if (i == array->count)
+     {
+        array->count = limit;
+        if (array->count == 0)
+          {
+             free(array->data);
+             array->total = 0;
+             array->data = NULL;
+          }
+
+        return EINA_TRUE;
+     }
+
+   eina_error_set(0);
+   tmp = malloc(sizeof (void *) * array->total);
+   if (!tmp)
+     {
+        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
+        return EINA_FALSE;
+     }
+
+   memcpy(tmp, array->data, limit * sizeof(void *));
+   total = limit;
+
+   if (i < array->count)
+     {
+        tmp[total] = data;
+        total++;
+        ++i;
+     }
+
+   for (; i < array->count; ++i)
+     {
+        data = eina_array_data_get(array, i);
+
+        if (keep(data, gdata))
+          {
+             tmp[total] = data;
+             total++;
+          }
+     }
+
+   free(array->data);
+
+   /* If we do not keep any object in the array, we should have exited
+      earlier in test (i == array->count). */
+   assert(total != 0);
+
+   array->data = tmp;
+   array->count = total;
+   return EINA_TRUE;
+}
+
+EAPI Eina_Iterator *
+eina_array_iterator_new(const Eina_Array *array)
+{
+   Eina_Iterator_Array *it;
+
+   EINA_SAFETY_ON_NULL_RETURN_VAL(array, NULL);
+   EINA_MAGIC_CHECK_ARRAY(array);
+
+   eina_error_set(0);
+   it = calloc(1, sizeof (Eina_Iterator_Array));
+   if (!it)
+     {
+        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
+        return NULL;
+     }
+
+   EINA_MAGIC_SET(it,            EINA_MAGIC_ARRAY_ITERATOR);
+   EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
+
+   it->array = array;
+
+   it->iterator.version = EINA_ITERATOR_VERSION;
+   it->iterator.next = FUNC_ITERATOR_NEXT(eina_array_iterator_next);
+   it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(
+         eina_array_iterator_get_container);
+   it->iterator.free = FUNC_ITERATOR_FREE(eina_array_iterator_free);
+
+   return &it->iterator;
+}
+
+EAPI Eina_Accessor *
+eina_array_accessor_new(const Eina_Array *array)
+{
+   Eina_Accessor_Array *ac;
+
+   EINA_SAFETY_ON_NULL_RETURN_VAL(array, NULL);
+   EINA_MAGIC_CHECK_ARRAY(array);
+
+   eina_error_set(0);
+   ac = calloc(1, sizeof (Eina_Accessor_Array));
+   if (!ac)
+     {
+        eina_error_set(EINA_ERROR_OUT_OF_MEMORY);
+        return NULL;
+     }
+
+   EINA_MAGIC_SET(ac,            EINA_MAGIC_ARRAY_ACCESSOR);
+   EINA_MAGIC_SET(&ac->accessor, EINA_MAGIC_ACCESSOR);
+
+   ac->array = array;
+
+   ac->accessor.version = EINA_ACCESSOR_VERSION;
+   ac->accessor.get_at = FUNC_ACCESSOR_GET_AT(eina_array_accessor_get_at);
+   ac->accessor.get_container = FUNC_ACCESSOR_GET_CONTAINER(
+         eina_array_accessor_get_container);
+   ac->accessor.free = FUNC_ACCESSOR_FREE(eina_array_accessor_free);
+
+   return &ac->accessor;
+}