init cut

filesystems-distributed-ufs/ufs.h

@@ -0,0 +1,35 @@
+#ifndef __ufs_h__
+#define __ufs_h__
+
+#define UFS_DIRECTORY    (0)
+#define UFS_REGULAR_FILE (1)
+
+#define UFS_BLOCK_SIZE (4096)
+
+#define DIRECT_PTRS (30)
+
+typedef struct {
+    int type;   // MFS_DIRECTORY or MFS_REGULAR
+    int size;   // bytes
+    unsigned int direct[DIRECT_PTRS];
+} inode_t;
+
+typedef struct {
+    char name[28];  // up to 28 bytes of name in directory (including \0)
+    int  inum;      // inode number of entry (-1 means entry not used)
+} dir_ent_t;
+
+// presumed: block 0 is the super block
+typedef struct __super {
+    int inode_bitmap_addr; // block address
+    int inode_bitmap_len;  // in blocks
+    int data_bitmap_addr;  // block address
+    int data_bitmap_len;   // in blocks
+    int inode_region_addr; // block address
+    int inode_region_len;  // in blocks
+    int data_region_addr;  // block address
+    int data_region_len;   // in blocks
+} super_t;
+
+
+#endif // __ufs_h__