合并新版本mesa_fuzzy（SFH）到maat，更节省内存。

src/entry/great_index_engine.h

@@ -0,0 +1,63 @@
+#ifndef _GREAT_INDEX_ENGINE_
+#define _GREAT_INDEX_ENGINE_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define GIE_INSERT_OPT 0
+#define GIE_DELETE_OPT 1
+
+typedef struct 
+{
+	/* data */
+}GIE_handle_t;
+
+
+typedef struct 
+{
+	unsigned int id;
+	short operation;//GIE_INSERT_OPT or GIE_DELETE_OPT.if operation is GIE_DELETE_OPT, only id is needed;
+	short cfds_lvl;
+	unsigned long long origin_len;	
+	char * fuzzy_hash;
+	void * tag;
+}GIE_digest_t;
+
+
+typedef struct 
+{
+	unsigned int id;
+	short cfds_lvl;
+	unsigned long long origin_len;
+	void * tag;
+}GIE_result_t;
+
+
+typedef struct 
+{
+	unsigned long long index_interval;
+//	int confidence_level_threshold;
+	double query_accuracy;
+}GIE_create_para_t;
+
+
+GIE_handle_t * GIE_create(const GIE_create_para_t * para);
+
+
+int GIE_update(GIE_handle_t * handle, GIE_digest_t ** digests, int size);
+
+//return actual matched result count
+//return 0 when matched nothing;
+//return -1 when error occurs;
+int GIE_query(GIE_handle_t * handle, unsigned long long origin_len, const char * fuzzy_string, GIE_result_t * results, int result_size);
+
+
+void GIE_destory(GIE_handle_t * handle);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif