refactor: synchronize the vfs objects

[lunaix-os.git] / lunaix-os / includes / lunaix / fs.h

diff --git a/lunaix-os/includes/lunaix/fs.h b/lunaix-os/includes/lunaix/fs.h
index d0d59d10a0d83b01a9286b098439b90b5d5bb462..37c82281c2fac51508dd8f96218453a46be75d0d 100644 (file)
--- a/lunaix-os/includes/lunaix/fs.h
+++ b/lunaix-os/includes/lunaix/fs.h
@@ -9,7 +9,9 @@
 #include <lunaix/ds/hstr.h>
 #include <lunaix/ds/llist.h>
 #include <lunaix/ds/lru.h>
 #include <lunaix/ds/hstr.h>
 #include <lunaix/ds/llist.h>
 #include <lunaix/ds/lru.h>

+#include <lunaix/ds/mutex.h>

 #include <lunaix/status.h>
 #include <lunaix/status.h>

+#include <stdatomic.h>

 
 #define VFS_NAME_MAXLEN 128
 #define VFS_MAX_FD 32
 
 #define VFS_NAME_MAXLEN 128
 #define VFS_MAX_FD 32


@@ -93,7 +95,7 @@ struct v_file
     struct v_dnode* dnode;
     struct llist_header* f_list;
     uint32_t f_pos;
     struct v_dnode* dnode;
     struct llist_header* f_list;
     uint32_t f_pos;

-    uint32_t ref_count;
+    atomic_ulong ref_count;

     struct v_file_ops ops;
 };
 
     struct v_file_ops ops;
 };
 


@@ -105,6 +107,7 @@ struct v_fd
 
 struct v_inode
 {
 
 struct v_inode
 {

+    mutex_t lock;

     uint32_t itype;
     time_t ctime;
     time_t mtime;
     uint32_t itype;
     time_t ctime;
     time_t mtime;


@@ -118,7 +121,7 @@ struct v_inode
     void* data; // 允许底层FS绑定他的一些专有数据
     struct
     {
     void* data; // 允许底层FS绑定他的一些专有数据
     struct
     {

-        int (*create)(struct v_inode* this);
+        int (*create)(struct v_inode* this, struct v_dnode* dnode);

         int (*open)(struct v_inode* this, struct v_file* file);
         int (*sync)(struct v_inode* this);
         int (*mkdir)(struct v_inode* this, struct v_dnode* dnode);
         int (*open)(struct v_inode* this, struct v_file* file);
         int (*sync)(struct v_inode* this);
         int (*mkdir)(struct v_inode* this, struct v_dnode* dnode);


@@ -134,6 +137,7 @@ struct v_inode
 
 struct v_dnode
 {
 
 struct v_dnode
 {

+    mutex_t lock; // sync the path walking

     struct hstr name;
     struct v_inode* inode;
     struct v_dnode* parent;
     struct hstr name;
     struct v_inode* inode;
     struct v_dnode* parent;


@@ -141,7 +145,7 @@ struct v_dnode
     struct llist_header children;
     struct llist_header siblings;
     struct v_superblock* super_block;
     struct llist_header children;
     struct llist_header siblings;
     struct v_superblock* super_block;

-    uint32_t ref_count;
+    atomic_ulong ref_count;

     struct
     {
         void (*destruct)(struct v_dnode* dnode);
     struct
     {
         void (*destruct)(struct v_dnode* dnode);