diff options
Diffstat (limited to 'src/kernel/vfs/request.h')
| -rw-r--r-- | src/kernel/vfs/request.h | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/src/kernel/vfs/request.h b/src/kernel/vfs/request.h index af1310b..e62f28f 100644 --- a/src/kernel/vfs/request.h +++ b/src/kernel/vfs/request.h @@ -4,11 +4,6 @@ #include <stdbool.h> #include <stddef.h> -enum vfs_backend_type { - VFS_BACK_ROOT, - VFS_BACK_USER, -}; - // describes something which can act as an access function struct vfs_backend { size_t refcount; @@ -19,13 +14,22 @@ struct vfs_backend { * struct handle */ - enum vfs_backend_type type; - size_t potential_handlers; // 0 - orphaned - - // only used with VFS_BACK_USER - struct process *handler; struct vfs_request *queue; + bool is_user; + + union { + struct { + struct process *handler; + } user; + struct { + bool (*ready)(struct vfs_backend *); + + // return value might be passed to caller + // TODO make return void + int (*accept)(struct vfs_request *); + } kern; + }; }; // describes an in-process vfs call @@ -57,7 +61,10 @@ struct vfs_request { int vfsreq_create(struct vfs_request); int vfsreq_finish(struct vfs_request *, int ret); -/** Try to accept an enqueued request */ -int vfs_backend_accept(struct vfs_backend *); +/** Try to accept an enqueued request + * @return same as _syscall_fs_wait, passed to it. except on calls to kern backend, where it returns the result of the fs op - also gets directly passed to caller. it's a mess */ +// TODO fix the return value mess +int vfs_backend_tryaccept(struct vfs_backend *); +int vfs_backend_user_accept(struct vfs_request *req); void vfs_backend_refdown(struct vfs_backend *); |