Changeset 8a49fed in mainline for uspace/srv/fs/minixfs/mfs.h

Timestamp:

2011-04-30T11:45:33Z (13 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

44c6091f

Parents:

2874547

Message:

Added implementation of mfs_truncate(), it does not prune indirect blocks yet.

File:

• uspace/srv/fs/minixfs/mfs.h (modified) (7 diffs)

uspace/srv/fs/minixfs/mfs.h

@@ -29 +29 @@
 /** @addtogroup fs
  * @{
- */ 
+ */
 
 #ifndef _MFS_H_
@@ -111 +111 @@
 /*Generic MinixFS inode*/
 struct mfs_ino_info {
-        uint16_t        i_mode;
-        uint16_t        i_nlinks;
-        int16_t         i_uid;
-        uint16_t        i_gid;
-        size_t          i_size;
-        int32_t         i_atime;
-        int32_t         i_mtime;
-        int32_t         i_ctime;
-        /*Block numbers for direct zones*/
-        uint32_t        i_dzone[V2_NR_DIRECT_ZONES];
-        /*Block numbers for indirect zones*/
-        uint32_t        i_izone[V2_NR_INDIRECT_ZONES];
+        uint16_t        i_mode;
+        uint16_t        i_nlinks;
+        int16_t         i_uid;
+        uint16_t        i_gid;
+        size_t          i_size;
+        int32_t         i_atime;
+        int32_t         i_mtime;
+        int32_t         i_ctime;
+        /*Block numbers for direct zones*/
+        uint32_t        i_dzone[V2_NR_DIRECT_ZONES];
+        /*Block numbers for indirect zones*/
+        uint32_t        i_izone[V2_NR_INDIRECT_ZONES];
 
         /*The following fields do not exist on disk but only in memory*/
@@ -159 +159 @@
 extern void mfs_lookup(ipc_callid_t rid, ipc_call_t *request);
 extern int mfs_instance_get(devmap_handle_t handle,
-                                struct mfs_instance **instance);
+                            struct mfs_instance **instance);
 
 extern void mfs_stat(ipc_callid_t rid, ipc_call_t *request);
@@ -171 +171 @@
 mfs_write(ipc_callid_t rid, ipc_call_t *request);
 
+extern void
+mfs_truncate(ipc_callid_t rid, ipc_call_t *request);
+
 /*mfs_inode.c*/
-int
+extern int
 get_inode(struct mfs_instance *inst, struct mfs_ino_info **ino_i,
-                                fs_index_t index);
+          fs_index_t index);
 
 extern int
 put_inode(struct mfs_node *mnode);
 
-int
+extern int
 inode_grow(struct mfs_node *mnode, size_t size_grow);
 
+extern int
+inode_shrink(struct mfs_node *mnode, size_t size_shrink);
+
 /*mfs_rw.c*/
 extern int
@@ -188 +194 @@
 extern int
 write_map(struct mfs_node *mnode, uint32_t pos, uint32_t new_zone,
-                                uint32_t *old_zone);
+          uint32_t *old_zone);
 
 extern int
@@ -196 +202 @@
 extern int
 read_directory_entry(struct mfs_node *mnode,
-                        struct mfs_dentry_info **d_info, unsigned index);
+                     struct mfs_dentry_info **d_info, unsigned index);
 
 extern int
 write_dentry(struct mfs_dentry_info *d_info);
 
-int
+extern int
 insert_dentry(struct mfs_node *mnode, const char *d_name, fs_index_t d_inum);
 
@@ -215 +221 @@
 /**
  * @}
- */ 
-
+ */
+