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Optimize searches for directory structures by keeping a pointer to struct directory in struct name.

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* src/common.h (struct name): New member `directory' replaces
dir_contents. Rearrange members.
(rebase_directory): Change signature.
(scan_directory): Change signature.
(name_fill_directory)
(directory_contents, safe_directory_contents): New prototypes.
(append_incremental_renames): Change signature.
(replace_prefix): New proto.
* src/compare.c (diff_dumpdir): Use directory_contents + scan_directory.
* src/create.c
* src/incremen.c (replace_prefix): Move to misc.c
(rebase_directory): Rewrite.
(scan_directory): Return pointer to struct directory.
(directory_contents, safe_directory_contents): New functions.
(get_directory_contents): Remove.
(name_fill_directory): New function.
(append_incremental_renames): Rewrite. This also fixes a memory leak.
* src/names.c (name_gather, addname): Reflect changes in struct name.
(add_hierarchy_to_namelist): Rewrite using name_fill_directory and
directory_contents.
(rebase_child_list): Update call to rebase_directory.
(collect_and_sort_names): Optimize

* src/misc.c (replace_prefix): New function.
* src/names.c (add_hierarchy_to_namelist): Use new get_directory_contents.

* tests/incr05.at: New test case.
* tests/incr06.at: New test case.
* tests/Makefile.am, test/testsuite.at: Add incr05.at and incr06.at.

* doc/Makefile.am (check-options): Improve rule.
* doc/tar.texi, NEWS: Update.
This commit is contained in:
Sergey Poznyakoff
2009-08-08 15:29:19 +03:00
parent df59690240
commit 2b1bffbad6
13 changed files with 353 additions and 148 deletions
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NEWS
+9 -1
View File
@@ -1,4 +1,4 @@
GNU tar NEWS - User visible changes. 2009-08-05
GNU tar NEWS - User visible changes. 2009-08-08
Please send GNU tar bug reports to <bug-tar@gnu.org>
@@ -23,6 +23,14 @@ messages are suppressed. For example,
suppresses the output of `A lone zero block' diagnostics, which is
normally issued if `archive' ends with a single block of zeros.
* New command line option `--level'
The `--level=N' option sets the incremental dump level N. It
is valid when used in conjunction with the -c and --listed-incremental
options. So far the only meaningful value for N is 0. The
`--level=0' option forces creating the level 0 dump, by truncating
the snapshot file if it exists.
* Bugfixes
** Fix handling of hard link targets by -c --transform.
** Fix hard links recognition with -c --remove-files.