1 files changed, 60 insertions, 0 deletions
diff --git a/third-party/tommyds/tommylist.c b/third-party/tommyds/tommylist.c
new file mode 100644
index 0000000..1fa1f24
--- /dev/null
+++ b/third-party/tommyds/tommylist.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2010, Andrea Mazzoleni. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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 "tommylist.h"
+#include "tommychain.h"
+
+/** \internal
+ * Setup a list.
+ */
+tommy_inline void tommy_list_set(tommy_list* list, tommy_node* head, tommy_node* tail)
+{
+	head->prev = tail;
+	tail->next = 0;
+	*list = head;
+}
+
+void tommy_list_sort(tommy_list* list, tommy_compare_func* cmp)
+{
+	tommy_chain chain;
+	tommy_node* head;
+
+	if (tommy_list_empty(list))
+		return;
+
+	head = tommy_list_head(list);
+
+	/* create a chain from the list */
+	chain.head = head;
+	chain.tail = head->prev;
+
+	tommy_chain_mergesort(&chain, cmp);
+
+	/* restore the list */
+	tommy_list_set(list, chain.head, chain.tail);
+}
+