xnu-3247.1.106.tar.gz

[apple/xnu.git] / bsd / sys / vnode_if.h

diff --git a/bsd/sys/vnode_if.h b/bsd/sys/vnode_if.h
index 33ae1004795537e52da01710c7161cfa487bf91a..f2a0be407d7b8d07831e9c1a2abc060fbe8e48ca 100644 (file)
--- a/bsd/sys/vnode_if.h
+++ b/bsd/sys/vnode_if.h
@@ -1,6 +1,6 @@
 
 /*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2014 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -100,7 +100,7 @@ extern struct vnodeop_desc vnop_compound_mkdir_desc;
 extern struct vnodeop_desc vnop_compound_rmdir_desc;
 #endif /* KERNEL_PRIVATE */
 extern struct vnodeop_desc vnop_create_desc;
-extern struct vnodeop_desc vnop_whiteout_desc;
+extern struct vnodeop_desc vnop_whiteout_desc; // obsolete
 extern struct vnodeop_desc vnop_mknod_desc;
 extern struct vnodeop_desc vnop_open_desc;
 extern struct vnodeop_desc vnop_close_desc;
@@ -124,6 +124,7 @@ extern struct vnodeop_desc vnop_rmdir_desc;
 extern struct vnodeop_desc vnop_symlink_desc;
 extern struct vnodeop_desc vnop_readdir_desc;
 extern struct vnodeop_desc vnop_readdirattr_desc;
+extern struct vnodeop_desc vnop_getattrlistbulk_desc;
 extern struct vnodeop_desc vnop_readlink_desc;
 extern struct vnodeop_desc vnop_inactive_desc;
 extern struct vnodeop_desc vnop_reclaim_desc;
@@ -214,7 +215,7 @@ struct vnop_whiteout_args {
 
 /*!
  @function VNOP_WHITEOUT
- @abstract Call down to a filesystem to create a whiteout.
+ @abstract Obsolete - no longer supported.
  @discussion Whiteouts are used to support the union filesystem, whereby one filesystem is mounted "transparently"
  on top of another.  A whiteout in the upper layer of a union mount is a "deletion" of a file in the lower layer;
  lookups will catch the whiteout and fail, setting ISWHITEOUT in the componentname structure, even if an underlying 
@@ -295,9 +296,6 @@ struct vnop_compound_open_args {
        void *a_reserved;
 };
 
-/* Control flags */
-#define VNOP_COMPOUND_OPEN_DO_CREATE   0x00000001
-
 /* Results */
 #define COMPOUND_OPEN_STATUS_DID_CREATE 0x00000001
 #endif /* KERNEL_PRIVATE */
@@ -955,6 +953,38 @@ struct vnop_readdirattr_args {
 extern errno_t VNOP_READDIRATTR(vnode_t, struct attrlist *, struct uio *, uint32_t, uint32_t, uint32_t *, int *, uint32_t *, vfs_context_t);
 #endif /* XNU_KERNEL_PRIVATE */
 
+struct vnop_getattrlistbulk_args {
+       struct vnodeop_desc *a_desc;
+       vnode_t a_vp;
+       struct attrlist *a_alist;
+       struct vnode_attr *a_vap;
+       struct uio *a_uio;
+       void *a_private;
+       uint64_t a_options;
+       int32_t *a_eofflag;
+       int32_t *a_actualcount;
+       vfs_context_t a_context;
+};
+
+/*!
+ @function VNOP_GETATTRLISTBULK
+ @abstract Call down to get file attributes for many files in a directory at once.
+ @discussion VNOP_GETATTRLISTBULK() packs a buffer  with file attributes, as if the results of many "getattrlist" calls.
+ @param vp Directory in which to enumerate entries' attributes.
+ @param alist Which attributes are wanted for each directory entry.
+ @param uio Destination information for resulting attributes.
+ @param vap initialised vnode_attr structure pointer. This structure also has memory allocated (MAXPATHLEN bytes) and assigned to the va_name field for filesystems to use.
+ @param private reserved for future use.
+ @param options
+ @param eofflag Should be set to 1 if the end of the directory has been reached.
+ @param actualcount Should be set to number of files whose attributes were  written into buffer.
+ @param ctx Context to authenticate for getattrlistbulk request.
+ @return 0 for success, else an error code.
+ */
+#ifdef XNU_KERNEL_PRIVATE
+extern errno_t VNOP_GETATTRLISTBULK(vnode_t, struct attrlist *, struct vnode_attr *, uio_t,  void *, uint64_t, int32_t *, int32_t *, vfs_context_t);
+#endif /* XNU_KERNEL_PRIVATE */
+
 struct vnop_readlink_args {
        struct vnodeop_desc *a_desc;
        vnode_t a_vp;
@@ -1051,6 +1081,7 @@ struct vnop_advlock_args {
        struct flock *a_fl;
        int a_flags;
        vfs_context_t a_context;
+       struct timespec *a_timeout;
 };
 
 /*!
@@ -1069,10 +1100,11 @@ struct vnop_advlock_args {
  @param flags F_FLOCK: use flock() semantics. F_POSIX: use POSIX semantics.  F_WAIT: sleep if necessary.  
  F_PROV: Non-coelesced provisional lock (unused in xnu).
  @param ctx Context to authenticate for advisory locking request.
+ @param timeout Timespec for timeout in case of F_SETLKWTIMEOUT.
  @return 0 for success, or an error code.  
  */
 #ifdef XNU_KERNEL_PRIVATE
-extern errno_t VNOP_ADVLOCK(vnode_t, caddr_t, int, struct flock *, int, vfs_context_t);
+extern errno_t VNOP_ADVLOCK(vnode_t, caddr_t, int, struct flock *, int, vfs_context_t, struct timespec *);
 #endif /* XNU_KERNEL_PRIVATE */
 
 struct vnop_allocate_args {