1 files changed, 108 insertions, 0 deletions
diff --git a/vere/ext/nasm/include/hashtbl.h b/vere/ext/nasm/include/hashtbl.h
new file mode 100644
index 0000000..9ea94dc
--- /dev/null
+++ b/vere/ext/nasm/include/hashtbl.h
@@ -0,0 +1,108 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 1996-2018 The NASM Authors - All Rights Reserved
+ *   See the file AUTHORS included with the NASM distribution for
+ *   the specific copyright holders.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following
+ *   conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * 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.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * hashtbl.h
+ *
+ * Efficient dictionary hash table class.
+ */
+
+#ifndef NASM_HASHTBL_H
+#define NASM_HASHTBL_H
+
+#include "nasmlib.h"
+
+struct hash_node {
+    uint64_t hash;
+    const void *key;
+    size_t keylen;
+    void *data;
+};
+
+struct hash_table {
+    struct hash_node *table;
+    size_t load;
+    size_t size;
+    size_t max_load;
+};
+
+struct hash_insert {
+    struct hash_table *head;
+    struct hash_node *where;
+    struct hash_node node;
+};
+
+struct hash_iterator {
+    const struct hash_table *head;
+    const struct hash_node *next;
+};
+
+uint64_t crc64(uint64_t crc, const char *string);
+uint64_t crc64i(uint64_t crc, const char *string);
+uint64_t crc64b(uint64_t crc, const void *data, size_t len);
+uint64_t crc64ib(uint64_t crc, const void *data, size_t len);
+#define CRC64_INIT UINT64_C(0xffffffffffffffff)
+
+static inline uint64_t crc64_byte(uint64_t crc, uint8_t v)
+{
+    extern const uint64_t crc64_tab[256];
+    return crc64_tab[(uint8_t)(v ^ crc)] ^ (crc >> 8);
+}
+
+uint32_t crc32b(uint32_t crc, const void *data, size_t len);
+
+void **hash_find(struct hash_table *head, const char *string,
+		struct hash_insert *insert);
+void **hash_findb(struct hash_table *head, const void *key, size_t keylen,
+		struct hash_insert *insert);
+void **hash_findi(struct hash_table *head, const char *string,
+		struct hash_insert *insert);
+void **hash_findib(struct hash_table *head, const void *key, size_t keylen,
+                   struct hash_insert *insert);
+void **hash_add(struct hash_insert *insert, const void *key, void *data);
+static inline void hash_iterator_init(const struct hash_table *head,
+                                      struct hash_iterator *iterator)
+{
+    iterator->head = head;
+    iterator->next = head->table;
+}
+const struct hash_node *hash_iterate(struct hash_iterator *iterator);
+
+#define hash_for_each(_head,_it,_np) \
+    for (hash_iterator_init((_head), &(_it)), (_np) = hash_iterate(&(_it)) ; \
+         (_np) ; (_np) = hash_iterate(&(_it)))
+
+void hash_free(struct hash_table *head);
+void hash_free_all(struct hash_table *head, bool free_keys);
+
+#endif /* NASM_HASHTBL_H */