move hash.[hc] into lib-lib/

[apps/madmutt.git] / lib-lib / hash.h

diff --git a/lib-lib/hash.h b/lib-lib/hash.h
new file mode 100644 (file)
index 0000000..3fdba21
--- /dev/null
+++ b/lib-lib/hash.h
@@ -0,0 +1,58 @@
+/*
+ *  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 2 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA 02110-1301, USA.
+ *
+ *  Copyright © 2006 Pierre Habouzit
+ */
+
+/*
+ * Copyright notice from original mutt:
+ * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
+ */
+
+#ifndef MUTT_LIB_LIB_HASH_H
+#define MUTT_LIB_LIB_HASH_H
+
+struct hash_elem {
+    const char *key;
+    void *data;
+    struct hash_elem *next;
+};
+
+typedef struct {
+    int nelem, curnelem;
+    struct hash_elem **table;
+} HASH;
+
+#define hash_find(table, key) \
+    hash_find_hash(table, hash_string((unsigned char *)key, table->nelem), key)
+
+#define hash_delete(table,key,data,destroy) \
+    hash_delete_hash(table, hash_string((unsigned char *)key, table->nelem), key, data, destroy)
+
+HASH *hash_create(int nelem);
+int hash_string(const unsigned char *s, int n);
+int hash_insert(HASH *table, const char *key, void *data, int allow_dup);
+HASH *hash_resize(HASH *table, int nelem);
+void *hash_find_hash(const HASH *table, int hash, const char *key);
+void hash_delete_hash(HASH *table, int hash, const char *key,
+                      const void *data, void (*destroy)(void *));
+void hash_destroy(HASH **hash, void (*destroy)(void *));
+
+void hash_map(HASH *table,
+              void (*mapfunc)(const char *key, void *data, unsigned long more),
+              unsigned long more);
+
+#endif /* MUTT_LIB_LIB_HASH_H */