Working on caching move generationaction_list_caching

1 files changed, 57 insertions, 0 deletions

diff --git a/include/hashtable.h b/include/hashtable.h
new file mode 100644
index 0000000..f8f6d91
--- /dev/null
+++ b/include/hashtable.h
@@ -0,0 +1,57 @@
+/*
+	This file is part of ct.
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program 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
+	General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with Takwrap.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifndef HASHTABLE_H
+#define HASHTABLE_H
+
+#include <stdlib.h>
+#include <stdint.h>
+
+// ===================================================================
+// Types
+// ===================================================================
+
+#define HASHTABLE_SIZE ((uint32_t)((1<<19) - 1))
+
+typedef struct ht_node_s {
+	struct ht_node_s *next;
+	uint64_t key;
+	void* data;
+} ht_entry_t;
+
+typedef struct hashtable_s {
+	ht_entry_t *entries[HASHTABLE_SIZE+1];
+	uint64_t num_entries;
+} hashtable_t;
+
+// ===================================================================
+// Methods
+// ===================================================================
+
+hashtable_t*
+ht_init(void);
+
+void
+ht_free(void data_free(void *), hashtable_t *table);
+
+ht_entry_t
+*ht_seek(const uint64_t key, hashtable_t *table);
+
+int
+ht_insert(const uint64_t key, void* data, hashtable_t *table);
+
+#endif