Changeset adc8a63 in mainline

Timestamp:

2008-03-05T19:48:54Z (16 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

3ca7059

Parents:

5fec355

Message:

Introduce real link counts for TMPFS.

Location:

uspace/srv/fs/tmpfs

Files:

• tmpfs.h (modified) (1 diff)
• tmpfs_ops.c (modified) (5 diffs)

uspace/srv/fs/tmpfs/tmpfs.h

@@ -55 +55 @@
                 TMPFS_DIRECTORY
         } type;
+        unsigned lnkcnt;        /**< Link count. */
         size_t size;            /**< File size if type is TMPFS_FILE. */
         void *data;             /**< File content's if type is TMPFS_FILE. */

uspace/srv/fs/tmpfs/tmpfs_ops.c

@@ -87 +87 @@
 static unsigned tmpfs_lnkcnt_get(void *nodep)
 {
-        return 1;
+        return ((tmpfs_dentry_t *) nodep)->lnkcnt;
 }
 
@@ -176 +176 @@
         dentry->name = NULL;
         dentry->type = TMPFS_NONE;
+        dentry->lnkcnt = 0;
         dentry->size = 0;
         dentry->data = NULL;
@@ -234 +235 @@
         if (!name)
                 return false;
+        
+        childp->lnkcnt++;
+        
         strcpy(name, nm);
         childp->name = name;
@@ -276 +280 @@
         dentry->name = NULL;
 
+        dentry->lnkcnt--;
+
         return EOK;
 }
@@ -283 +289 @@
         tmpfs_dentry_t *dentry = (tmpfs_dentry_t *) nodep;
         
+        assert(!dentry->lnkcnt);
         assert(!dentry->child);
         assert(!dentry->sibling);