1 files changed, 104 insertions, 0 deletions
diff --git a/src/libmowgli/mowgli_object_metadata.c b/src/libmowgli/mowgli_object_metadata.c
new file mode 100644
index 0000000..9cfece5
--- /dev/null
+++ b/src/libmowgli/mowgli_object_metadata.c
@@ -0,0 +1,104 @@
+/*
+ * libmowgli: A collection of useful routines for programming.
+ * mowgli_object_metadata.c: Object metadata.
+ *
+ * Copyright (c) 2007 William Pitcock <nenolod -at- sacredspiral.co.uk>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "mowgli.h"
+
+void mowgli_object_metadata_associate(mowgli_object_t *self, const char *key, void *value)
+{
+	mowgli_object_metadata_entry_t *e = NULL;
+	mowgli_node_t *n;
+
+	if (self == NULL)
+		mowgli_throw_exception(mowgli.object_metadata.invalid_object_exception);
+
+	if (key == NULL)
+		mowgli_throw_exception(mowgli.null_pointer_exception);
+
+	MOWGLI_LIST_FOREACH(n, self->metadata.head)
+	{
+		e = (mowgli_object_metadata_entry_t *) n->data;
+
+		if (!strcasecmp(e->name, key))
+			break;
+	}
+
+	if (e != NULL)
+	{
+		e->data = value;
+		return;
+	}
+
+	e = mowgli_alloc(sizeof(mowgli_object_metadata_entry_t));
+	e->name = strdup(key);
+	e->data = value;
+
+	mowgli_node_add(e, mowgli_node_create(), &self->metadata);
+}
+
+void mowgli_object_metadata_dissociate(mowgli_object_t *self, const char *key)
+{
+	mowgli_object_metadata_entry_t *e;
+	mowgli_node_t *n, *tn;
+
+	if (self == NULL)
+		mowgli_throw_exception(mowgli.object_metadata.invalid_object_exception);
+
+	if (key == NULL)
+		mowgli_throw_exception(mowgli.null_pointer_exception);
+
+	MOWGLI_LIST_FOREACH_SAFE(n, tn, self->metadata.head)
+	{
+		e = (mowgli_object_metadata_entry_t *) n->data;
+
+		if (!strcasecmp(e->name, key))
+		{
+			mowgli_node_delete(n, &self->metadata);
+			mowgli_node_free(n);
+
+			mowgli_free(e->name);
+			mowgli_free(e);
+		}
+	}
+}
+
+void *mowgli_object_metadata_retrieve(mowgli_object_t *self, const char *key)
+{
+	mowgli_object_metadata_entry_t *e;
+	mowgli_node_t *n;
+
+	if (self == NULL)
+		mowgli_throw_exception_val(mowgli.object_metadata.invalid_object_exception, NULL);
+
+	if (key == NULL)
+		mowgli_throw_exception_val(mowgli.null_pointer_exception, NULL);
+
+	MOWGLI_LIST_FOREACH(n, self->metadata.head)
+	{
+		e = (mowgli_object_metadata_entry_t *) n->data;
+
+		if (!strcasecmp(e->name, key))
+			return e->data;
+	}
+
+	return NULL;
+}