Interface modified mmap to fd

lib/idx/types.ts

@@ -1,26 +1,29 @@
 // src/index-file/types.ts
 export interface IndexHeader {
-  magic: string;
-  version: number;
-  createdAt: bigint;
-  entrySize: number;
-  entryCount: number;
-  validCount: number;
-  dataFileSize: bigint;
-  lastSequence: number;
-  reserved: Buffer;
+    magic: string;
+    version: number;
+    createdAt: bigint;
+    entrySize: number;
+    entryCount: number;
+    writtenCnt: number;
+    dataFileSize: bigint;
+    latestSequence: number;
+    autoIncrementSequence: boolean;
+    reserved: Buffer;
 }
 
 export interface IndexEntry {
-  sequence: number;
-  timestamp: bigint;
-  offset: bigint;
-  length: number;
-  flags: number;
-  checksum: number;
+    sequence: number;
+    timestamp: bigint;
+    offset: bigint;
+    length: number;
+    flags: number;
+    checksum: number;
 }
 
 export interface IndexFileOptions {
-  maxEntries: number;
-  magic?: string;
-}
+    maxEntries?: number;
+    autoIncrementSequence?: boolean;
+}
+
+export type IndexFileOptionsRequired = Required<IndexFileOptions>;