allow specifiying access mode when creating twifs file node

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

diff --git a/lunaix-os/includes/lunaix/fs/twifs.h b/lunaix-os/includes/lunaix/fs/twifs.h
index a8117ef7cddb61ff4c67b59598c45365ef128691..733db19c1770692b7e7e3b88202a3d2a20ad5809 100644 (file)
--- a/lunaix-os/includes/lunaix/fs/twifs.h
+++ b/lunaix-os/includes/lunaix/fs/twifs.h
@@ -1,30 +1,49 @@
 #ifndef __LUNAIX_TWIFS_H
 #define __LUNAIX_TWIFS_H
 
+#include <lunaix/ds/ldga.h>
 #include <lunaix/fs.h>
 #include <lunaix/fs/twimap.h>
 #include <lunaix/spike.h>
 
+struct twifs_ops
+{
+    int (*write)(struct v_inode* inode,
+                    void* buffer,
+                    size_t len,
+                    size_t fpos);
+    int (*read)(struct v_inode* inode,
+                void* buffer,
+                size_t len,
+                size_t fpos);
+};
+
 struct twifs_node
 {
     struct hstr name;
     inode_t ino_id;
     void* data;
-    uint32_t itype;
+    u32_t itype;
+    int acl;
+
     char name_val[VFS_NAME_MAXLEN];
     struct llist_header children;
     struct llist_header siblings;
-    struct
-    {
-        int (*write)(struct v_inode* inode,
-                     void* buffer,
-                     size_t len,
-                     size_t fpos);
-        int (*read)(struct v_inode* inode,
-                    void* buffer,
-                    size_t len,
-                    size_t fpos);
-    } ops;
+    struct twifs_ops ops;
+};
+
+struct twifs_export
+{
+    char* name;
+    int acl;
+    struct twifs_ops ops;
+};
+
+struct twimap_export
+{
+    char* name;
+    int acl;
+    struct twimap_ops ops;
 };
 
 #define twinode_getdata(inode, type)                                           \
@@ -34,22 +53,81 @@ struct twifs_node
         (type) twinode->data;                                                  \
     })
 
+#define EXPORT_TWIFS_PLUGIN(label, plg_init)                                   \
+    export_ldga_el(twiplugin_inits, label, ptr_t, plg_init)
+
+#define __twifs_export_base(name_, acl_) \
+            .name=stringify(name_), .acl=(acl_)
+
+#define twifs_node_ro(name_, acl_)                        \
+        struct twifs_export __twifs_exp_##name_ =           \
+            { __twifs_export_base(name_, acl_),             \
+                .ops = { .read =  __twifs_read_##name_ }}
+
+#define twifs_node_rw(name_, acl_)                        \
+        struct twifs_export __twifs_exp_##name_ =           \
+            { __twifs_export_base(name_, acl_),             \
+                .ops = { .read =  __twifs_read_##name_,         \
+                         .write =  __twifs_write_##name_ }}
+
+#define twimap_value_export(name_, acl_)                    \
+        struct twimap_export __twimap_exp_##name_ =          \
+            { __twifs_export_base(name_, acl_),             \
+                .ops = { .read =  __twimap_read_##name_ }}
+
+#define twimap_list_export(name_, acl_)                     \
+        struct twimap_export __twimap_exp_##name_ =          \
+            { __twifs_export_base(name_, acl_),             \
+                .ops = { .read =  __twimap_read_##name_,         \
+                         .go_next =  __twimap_gonext_##name_,   \
+                         .reset =  __twimap_reset_##name_, }}
+
+#define twifs_export(parent, name_, data_)      \
+        twifs_basic_node_from(parent, &__twifs_exp_##name_, data_)
+
+#define twimap_export(parent, name_, data_)      \
+        twifs_mapped_node_from(parent, &__twimap_exp_##name_, data_)
+
+#define twifs_export_ro(parent, name_, acl_, data_)                     \
+        ({                                                              \
+            twifs_node_ro(name_, acl_);                                 \
+            twifs_export(parent, name_, data_);                        \
+        })
+
+#define twimap_export_value(parent, name_, acl_, data_)                 \
+        ({                                                              \
+            twimap_value_export(name_, acl_);                           \
+            twimap_export(parent, name_, data_);                        \
+        })
+
+#define twimap_export_list(parent, name_, acl_, data_)                  \
+        ({                                                              \
+            twimap_list_export(name_, acl_);                            \
+            twimap_export(parent, name_, data_);                        \
+        })
+
 void
-twifs_init();
+twifs_register_plugins();
 
 struct twifs_node*
 twifs_file_node_vargs(struct twifs_node* parent, const char* fmt, va_list args);
 
-struct twifs_node*
-twifs_file_node(struct twifs_node* parent, const char* fmt, ...);
-
 struct twifs_node*
 twifs_dir_node(struct twifs_node* parent, const char* fmt, ...);
 
 int
 twifs_rm_node(struct twifs_node* node);
 
+struct twifs_node*
+twifs_basic_node_from(struct twifs_node* parent, 
+                        struct twifs_export* exp_def, void* data);
+
+struct twifs_node*
+twifs_mapped_node_from(struct twifs_node* parent, 
+                        struct twimap_export* exp_def, void* data);
+
 struct twimap*
-twifs_mapping(struct twifs_node* parent, void* data, const char* fmt, ...);
+twifs_mapping(struct twifs_node* parent, 
+                void* data, int acl, const char* fmt, ...);
 
 #endif /* __LUNAIX_TWIFS_H */