add function hash_find1 and hash_find2

HISTORY

@@ -1,5 +1,5 @@
 
-Version 1.40  2018-10-11
+Version 1.40  2018-10-26
   * add function conn_pool_parse_server_info and conn_pool_load_server_info
   * support directive: #@add_annotation, for example:
     #@add_annotation CONFIG_GET /usr/lib/libshmcache.so /etc/libshmcache.conf
@@ -8,6 +8,7 @@ Version 1.40  2018-10-11
   * add function fc_strdup
   * add function fc_memmem
   * add function format_http_date
+  * add function hash_find1 and hash_find2
 
 Version 1.39  2018-07-31
   * add #@function REPLACE_VARS

src/hash.c

@@ -568,6 +568,24 @@ void *hash_find(HashArray *pHash, const void *key, const int key_len)
 	}
 }
 
+int hash_find2(HashArray *pHash, const string_t *key, string_t *value)
+{
+    HashData *hdata;
+    if ((hdata=hash_find1_ex(pHash, key)) == NULL)
+    {
+        return ENOENT;
+    }
+
+    value->str = hdata->value;
+    value->len = hdata->value_len;
+    return 0;
+}
+
+HashData *hash_find1_ex(HashArray *pHash, const string_t *key)
+{
+    return hash_find_ex(pHash, key->str, key->len);
+}
+
 int hash_get(HashArray *pHash, const void *key, const int key_len,
 	void *value, int *value_len)
 {

src/hash.h

@@ -198,6 +198,36 @@ void *hash_find(HashArray *pHash, const void *key, const int key_len);
 */
 HashData *hash_find_ex(HashArray *pHash, const void *key, const int key_len);
 
+/**
+ * hash find key
+ * parameters:
+ *         pHash: the hash table
+ *         key: the key to find
+ * return user data, return NULL when the key not exist
+*/
+static inline void *hash_find1(HashArray *pHash, const string_t *key)
+{
+    return hash_find(pHash, key->str, key->len);
+}
+
+/**
+ * hash get the value of the key
+ * parameters:
+ *         pHash: the hash table
+ *         key: the key to find
+ *         value: store the value
+ * return 0 for success, != 0 fail (errno)
+*/
+int hash_find2(HashArray *pHash, const string_t *key, string_t *value);
+
+/**
+ * hash find key
+ * parameters:
+ *         pHash: the hash table
+ *         key: the key to find
+ * return hash data, return NULL when the key not exist
+*/
+HashData *hash_find1_ex(HashArray *pHash, const string_t *key);
 
 /**
  * hash get the value of the key