diff -r 1fdbf4170ef4 -r b8bf95b39952 src/server/util/map.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/util/map.c	Sat Jan 14 13:53:44 2012 +0100
@@ -0,0 +1,134 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2011 Olaf Wintermann. 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 HOLDER 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "map.h"
+
+hashmap_t* hashmap_new(size_t size) {
+    hashmap_t *map = malloc(sizeof(hashmap_t));
+    map->map = calloc(size, sizeof(sdlist_t));
+    map->len = size;
+
+    return map;
+}
+
+void hashmap_free(hashmap_t *map) {
+    for(int i=0;i<map->len;i++) {
+        sdlist_t *list = map->map[0];
+        while(list != NULL) {
+            hashmap_elm_t *elm = (hashmap_elm_t*)list->data;
+            free(elm->key.ptr);
+            sdlist_t *l = list;
+            list = list->next;
+            free(elm);
+            free(l);
+        }
+    }
+    free(map->map);
+    free(map);
+}
+
+
+void hashmap_put(hashmap_t *map, sstr_t key, void *value) {
+    int hash = hashmap_hash(key.ptr, key.length);
+
+    sdlist_t *list = map->map[hash%map->len];
+
+    sstr_t k = sstrdub(key);
+
+    hashmap_elm_t *elm = malloc(sizeof(hashmap_elm_t));
+    elm->data = value;
+    elm->hash = hash;
+    elm->key = k;
+
+    map->map[hash%map->len] = sdlist_add(list, elm);
+}
+
+void* hashmap_get(hashmap_t *map, sstr_t key) {
+    int hash = hashmap_hash(key.ptr, key.length);
+    sdlist_t *list = map->map[hash%map->len];
+    void *value = NULL;
+
+    while (list != NULL) {
+        hashmap_elm_t *elm = list->data;
+        if (elm->hash == hash &&
+                strncmp(key.ptr, elm->key.ptr, key.length) == 0) {
+            value = elm->data;
+            break;
+        }
+        list = list->next;
+    }
+
+    return value;
+}
+
+
+
+
+/* hash function */
+int hashmap_hash(char *data, size_t len) {
+    /* murmur hash 2 */
+
+    int m = 0x5bd1e995;
+    int r = 24;
+
+    int h = 25 ^ len;
+
+    int i = 0;
+    while (len >= 4) {
+        int k = data[i + 0] & 0xFF;
+        k |= (data[i + 1] & 0xFF) << 8;
+        k |= (data[i + 2] & 0xFF) << 16;
+        k |= (data[i + 3] & 0xFF) << 24;
+
+        k *= m;
+        k ^= k >> r;
+        k *= m;
+
+        h *= m;
+        h ^= k;
+
+        i += 4;
+        len -= 4;
+    }
+
+    switch (len) {
+        case 3: h ^= (data[i + 2] & 0xFF) << 16;
+        case 2: h ^= (data[i + 1] & 0xFF) << 8;
+        case 1: h ^= (data[i + 0] & 0xFF); h *= m;
+    }
+
+    h ^= h >> 13;
+    h *= m;
+    h ^= h >> 15;
+
+    return h;
+}