feat: taskfs for export process to filesystem

[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 b497954abce0373140bc97cf4f800dfab89f8561..94c6e6bbd918d112bb3d1761a810e2d2ceb8b3e9 100644 (file)
--- a/lunaix-os/includes/lunaix/fs.h
+++ b/lunaix-os/includes/lunaix/fs.h
@@ -172,6 +172,18 @@ struct v_fd
     int flags;
 };
 
+// FIXME how do we invalidate corresponding v_dnodes given the v_inode?
+/*
+    Consider taskfs, which is Lunaix's speak of Linux's procfs, that allow
+    info of every process being accessible via file system. Each process's
+    creation will result a creation of a directory under the root of task fs
+    with it's pid as name. But that dir must delete when process is killed, and
+    such deletion does not mediated by vfs itself, so there is a need of cache
+    syncing.
+    And this is also the case of all ramfs where argumentation to file tree is
+    performed by third party.
+*/
+
 struct v_inode
 {
     inode_t id;
@@ -357,6 +369,9 @@ vfs_dup_fd(struct v_fd* old, struct v_fd** new);
 int
 vfs_getfd(int fd, struct v_fd** fd_s);
 
+int
+vfs_get_dtype(int itype);
+
 void
 pcache_init(struct pcache* pcache);