Commit Graph

11 Commits

Author SHA1 Message Date
Augustin Cavalier
2532a28785 Avoid using unions for LongDirEntry.
GCC still assumes that the dirent has no data past the end for some
scenarios here and still mis-optimizes things. Therefore, drop the
usages of unions altogether, and instead use a casted character array.

Additionally, use B_FILE_NAME_LENGTH for the array, not B_PATH_NAME_LENGTH,
and make sure to add 1 for the NULL terminator.
2021-11-23 16:36:18 -05:00
Augustin Cavalier
8f03af00f8 Storage: Rework LongDirEntry to be a union.
Our dirent structure is "slim": it has a flexible-length array at the
end which must be allocated to whatever size the consumer wants. However,
we use [1] there and not [0] or [], which meant GCC thought it was not
a flexible-length array, and so it optimized various string accesses
that it assumed must be always false. Among these was BDirectory's
check for "." and "..", and so that resulted in infinite loops.

When changing our dirent structure to a proper FLA instead of [1],
GCC then throws errors on LongDirEntry as it has data "after" the
FLA; which is what we want, but there is no way to tell GCC that.
So now we use a union instead, which is the proper way to statically
allocate a FLA.

This is part of #17389, but the real fix requires changing our dirent
structure, which is coming in a separate commit.
2021-11-18 16:00:23 -05:00
Ingo Weinhold
42c9b01aa6 * {BEntry,BNode}::GetStat() were still passing the BeOS struct stat size to
the syscall. Anything beyond st_mtim was therefore not filled in. Fixes
  the incorrectly shown creation times in Tracker.
* The BStatable::GetStat() solution was not sufficient yet. We still have to
  provide the old GetStat() symbol for BNode and BEntry, since those could be
  used by old applications/libraries. We also still have to implement the old
  GetStat() slots in the derived classes, but don't need to implement it in
  the base class (was purely virtual before and is private now).
* The old BStatable::_OhSoStatable1() slot function was not implemented
  correctly. Calling the virtual function at the vtable slot obviously results
  in an infinite recursion. The correct implementation would make use of the
  Perform() method, but Be didn't provide one for BStatable, so we have to use
  the old GetStat() method. Fixed #3960.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30851 a95241bf-73f2-0310-859d-f6bbb57e9c96
2009-05-25 14:03:38 +00:00
Axel Dörfler
7b3d36e5aa * BEntry::GetStat() and BNode::GetStat() used sizeof(struct stat) for the kernel
syscall, but they could not know if R5 code called them (in which case the stat
  size has a different size). We now always only return the R5 stat structure here.
  This fixes bug #420. We might want to find a different solution to this problem,
  though.
* Be got SYMLINK_MAX wrong - it's not the maximum number of links (that's SYMLOOP_MAX),
  but the maximum size of a symlink buffer. Added missing SYMLOOP_MAX and SYMLINK_MAX
  constants to limits.h.
* Fixes MAXSYMLINKS to use SYMLOOP_MAX, instead of SYMLINKS_MAX (which doesn't exist
  in POSIX specs, but we (intentionally) break source compatibility here).
* Reenabled the Haiku versions of stat(), fstat(), and lstat() when build for Haiku.
* Removed OpenBeOS namespace stuff from the files I touched.
* Removed superfluous StorageDefs.Private.h, whyever that ended up in a public header
  is beyond me.
* Cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17894 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-06-21 13:49:16 +00:00
Axel Dörfler
3e54c13abc * Fixed BDirectory::SetTo(BDirectory*, path) constructor in case the target
directory was "this".
* Fixed storage_support.h header - didn't include all needed headers.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17288 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-05-01 16:55:46 +00:00
Ingo Weinhold
db10640de9 Got rid of the Storage Kit's kernel abstraction layer, which was
unfortunately quite slow and made some things more complicated than they
needed to be.
Implemented a few missing things (e.g. BSymLink and node locking).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8694 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-08-28 20:14:46 +00:00
Tyler Dauwalder
e5f9569dcb Added escape_path() functions
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1873 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-11-08 00:37:46 +00:00
Tyler Dauwalder
1c4b41005c Added to_lower() functions
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@861 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-08-24 04:54:52 +00:00
Tyler Dauwalder
09d84e61b6 + Changed StorageKit namespace to BPrivate::Storage
+ Changed Sniffer namespace to BPrivate::Storage::Sniffer


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@714 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-08-12 08:42:01 +00:00
Tyler Dauwalder
82b7566525 Updated header guards to Be, Inc. style.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@713 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-08-12 07:24:02 +00:00
ejakowatz
52a3801208 It is accomplished ...
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-09 12:24:59 +00:00