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Commit Graph

19 Commits

Author SHA1 Message Date
Allan McRae
81dd9d3ebc Detect undefined PATH_MAX
POSIX does not require PATH_MAX be defined when there is not actual
limit to its value.  This affects HURD based systems.  Work around
this by defining PATH_MAX to 4096 (as on Linux) when this is not
defined.

Also, clean up inclusions of limits.h and remove autoconf check for
this header as we do not use macro shields for its inclusion anyway.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-29 19:24:13 -06:00
Dan McGee
f2dff08600 Overhaul archive fgets function
The old function was written in a time before we relied on it for nearly
every operation. Since then, we have switched to the archive backend and now
fast parsing is a big deal.

The former function made a per-character call to the libarchive
archive_read_data() function, which resulted in some 21 million calls in a
typical "load all sync dbs" operation. If we instead do some buffering of
our own and read the blocks directly, and then find our newlines from there,
we can cut out the multiple layers of overhead and go from archive to parsed
data much quicker.

Both users of the former function are switched over to the new signature,
made easier by the macros now in place in the sync backend parsing code.

Performance: for a `pacman -Su` (no upgrades available),
_alpm_archive_fgets() goes from being 29% of the total time to 12% The time
spent on the libarchive function being called dropped from 24% to 6%.

This pushes _alpm_pkg_find back to the title of slowest low-level function.

Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-21 14:58:17 -06:00
Dan McGee
8ac7f7e6e5 Use macros in sync DB parsing
This simplifies a lot of the repetative code and makes it obvious where the
tricky or different ones are (e.g. depends, dates). It also makes it
significantly easier to change the way this code works in the future.

There should be no functional change with this patch.

Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-20 18:02:47 -06:00
Dan McGee
c00e05992e Remove non-public functions from header
And rename accordingly.

Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-13 21:16:47 -06:00
Dan McGee
94d3d665f0 Mark sync_db_read() as static
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-13 21:14:03 -06:00
Dan McGee
1ff8118212 Create sync/ DB directory if it does not exist
Rather than error out, this is easy enough. Looks quite similar to the code
in be_local for creating the local directory.

Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-12 22:41:02 -06:00
Dan McGee
3030542d10 Make reading from any file possible in sync DB
Whether it be "desc", "depends", or "deltas", it really doesn't matter-
treat them all the same and have the ability to read any data from any file
in that list. This continues the work in a44c7b8956.

Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-12 20:38:20 -06:00
Dan McGee
fc74ef93b6 dirent usage cleanup
We were including the header in a lot of places it is no longer used.
Additionally, use the correct autoconf macro for determining whether
d_type is available as a member: HAVE_STRUCT_DIRENT_D_TYPE.

Signed-off-by: Dan McGee <dan@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-12 20:29:20 -06:00
Allan McRae
a44c7b8956 Combine reading from depends and desc in sync db
This will allow us to eventually combine the depends and desc entries
within the sync database.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-12 20:25:35 -06:00
Xavier Chantry
c2cce1f46a Fix a few problems reported by clang-analyzer
One missing NULL-check and 3 dead assignments.

Signed-off-by: Xavier Chantry <chantry.xavier@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-12 20:07:15 -06:00
Dan McGee
feb9889f22 Add epoch support to pacman/libalpm
This will allow for better control of what was previously the 'force' option
in a PKGBUILD and transferred into the built package.

Signed-off-by: Dan McGee <dan@archlinux.org>
2010-10-13 23:29:26 -05:00
Dan McGee
ef32aa0219 Small tweaks after backend merge
Just a few small things I noticed looking through the code.

Signed-off-by: Dan McGee <dan@archlinux.org>
2010-10-13 23:09:20 -05:00
Allan McRae
5b17d8f27d Clean-up parsing sync database
Remove unnecessary parsing of fields not found in sync desc file.

Signed-off-by: Allan McRae <allan@archlinux.org>
2010-10-14 13:17:40 +10:00
Allan McRae
e464339e3b Move and rename splitname
The splitname function is a general utility function and so is better
suited to util.h.  Rename it to _alpm_splitname to indicate it is an
internal libalpm function as was the case prior to splitting local and
sync db handling.

Signed-off-by: Allan McRae <allan@archlinux.org>
2010-10-14 13:17:40 +10:00
Allan McRae
149ab6b272 Only download sync databases
As the sync databases are read directly from the tarball, we no
longer need to extract them.

Signed-off-by: Allan McRae <allan@archlinux.org>
2010-10-14 13:17:39 +10:00
Allan McRae
4a8e396a58 Parse sync database
Read in package information for a tar based sync database. Do not
use lazy loading for sync db.

Signed-off-by: Allan McRae <allan@archlinux.org>
2010-10-14 13:17:39 +10:00
Allan McRae
5e61f07735 Populate sync db from archive
Read in list of packages for sync db from tar archive.

Breaks reading in _alpm_sync_db_read and a lot of pactests (which
is expected as they do not handle sync db in archives...).

Signed-off-by: Allan McRae <allan@archlinux.org>
2010-10-14 13:17:39 +10:00
Allan McRae
fc32faaa6a Completely separate local and sync db handling
Put the db_operations struct to use and completely split the handling
of the sync and local databases.

Signed-off-by: Allan McRae <allan@archlinux.org>
2010-10-14 13:17:39 +10:00
Allan McRae
5b2de3d8ec Separate be_files into be_sync and be_local
The file be_files.c is "split" to be_local.c and be_sync.c in order
to achieve separate handling of sync and local databases.

Some basic clean-up of functions that are only of use for local or
sync databases has been performed and some rough function renaming
in duplicated code has been performed to prevent compilation errors.
However, most of the clean-up and final separation of sync and local
db handling occurs in following patches.

Signed-off-by: Allan McRae <allan@archlinux.org>
2010-10-14 13:17:38 +10:00