First version of blf library.

include/nng/supplemental/nanolib/blf.h

@@ -0,0 +1,62 @@
+#ifndef BLF_H
+#define BLF_H
+#include "nng/nng.h"
+#include "nng/supplemental/nanolib/conf.h"
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct blf_object blf_object;
+typedef void (*blf_cb)(blf_object *arg);
+
+typedef enum {
+	WRITE_TO_NORMAL1,
+	WRITE_TO_TEMP1,
+} blf_write_type;
+
+typedef struct {
+	uint32_t start_idx;
+	uint32_t end_idx;
+	char    *filename;
+} blf_file_range;
+
+typedef struct {
+	blf_file_range **range;
+	int              size;
+	int              start; // file range start index
+} blf_file_ranges;
+
+typedef struct {
+	uint8_t *data;
+	uint32_t size;
+} blf_data_packet;
+
+struct blf_object {
+	uint64_t        *keys;
+	uint8_t        **darray;
+	uint32_t        *dsize;
+	uint32_t         size;
+	nng_aio         *aio;
+	void            *arg;
+	blf_file_ranges *ranges;
+	blf_write_type   type;
+};
+
+blf_object *blf_object_alloc(uint64_t *keys, uint8_t **darray, uint32_t *dsize,
+    uint32_t size, nng_aio *aio, void *arg);
+void        blf_object_free(blf_object *elem);
+
+int blf_write_batch_async(blf_object *elem);
+int blf_write_launcher(conf_blf *conf);
+
+const char  *blf_find(uint64_t key);
+const char **blf_find_span(
+    uint64_t start_key, uint64_t end_key, uint32_t *size);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif