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path: root/lib/libalpm/pkghash.c
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* Remove ts and sw from vim modeline when noet is setFlorian Pritz2014-01-28
| | | | | | | | | | | | Forcing vim users to view files with a tabstop of 2 seems really unnecessary when noet is set. I find it much easier to read code with ts=4 and I dislike having to override the modeline by hand. Command run: find . -type f -exec sed -i '/vim.* noet/s# ts=2 sw=2##' {} + Signed-off-by: Florian Pritz <bluewind@xinu.at> Signed-off-by: Allan McRae <allan@archlinux.org>
* Update copyright years for 2014Allan McRae2014-01-06
| | | | Signed-off-by: Allan McRae <allan@archlinux.org>
* Update copyright year for 2013Allan McRae2013-01-03
| | | | Signed-off-by: Allan McRae <allan@archlinux.org>
* Update copyright yearsAllan McRae2012-02-20
| | | | | | | Add 2012 to the copyright range for all libalpm and pacman source files. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* pkghash improvements/modificationsDan McGee2012-01-02
| | | | | | | | | | | | | | | | | | | | | | | | | This patch changes a variety of small things related to our pkghash implementation with an eye toward performance, especially on native 32-bit systems. * Use `unsigned int` rather than `size_t` for hash sizes. We already return ERANGE for any attempted creation of a hash greater than 1 million elements, so unsigned int is more than large enough for our purposes. Switching to this type allows 32 bit systems to do native math without helper functions from libgcc. * _alpm_pkghash_create() now internally adds extra padding for additional array elements, rather than that being the responsibility of the caller. * #define values are moved into static const values in pkghash.c; a new `stride` value is also extracted (but remains set at 1). * Division and modulus operators are removed from the normal find and add paths if possible. We store the upper limit of the number of elements in the hash so we no longer need to calculate this every element addition. When doing wraparound position calculations, we only apply the modulus operator if the value is greater than the number of buckets. Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list: use malloc instead of callocDan McGee2011-09-27
| | | | | | | | | | | | In every case we were calling calloc, the struct we allocated (or the memory to be used) is fully specified later in the method. For alpm_list_t allocations, we always set all of data, next, and prev. For list copying and transforming to an array, we always copy the entire data element, so no need to zero it first. Signed-off-by: Dan McGee <dan@archlinux.org>
* Rename pmpkghash_t to alpm_pkghash_tAllan McRae2011-06-28
| | | | Signed-off-by: Allan McRae <allan@archlinux.org>
* Rename pmpkg_t to alpm_pkg_tAllan McRae2011-06-28
| | | | Signed-off-by: Allan McRae <allan@archlinux.org>
* Switch all logging to use handle directlyDan McGee2011-06-13
| | | | | | | This is the last user of our global handle object. Once again the diff is large but the functional changes are not. Signed-off-by: Dan McGee <dan@archlinux.org>
* Move pm_errno onto the handleDan McGee2011-06-13
| | | | | | This involves some serious changes and a very messy diff, unfortunately. Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove ALPM_LOG_FUNC macroDan McGee2011-06-03
| | | | | | | | | The usefulness of this is rather limited due to it not being compiled into production builds. When you do choose to see the output, it is often overwhelming and not helpful. The best bet is to use a debugger and/or well-placed fprintf() statements. Signed-off-by: Dan McGee <dan@archlinux.org>
* style cleanup: cast as (type *) not (type*)Dave Reisner2011-04-20
| | | | | Signed-off-by: Dave Reisner <d@falconindy.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* Merge branch 'maint'Dan McGee2011-04-05
|\ | | | | | | | | | | | | Conflicts: lib/libalpm/be_sync.c lib/libalpm/db.c src/pacman/util.c
| * libalpm/pkghash.c: unused variable ptrXavier Chantry2011-04-04
| | | | | | | | | | | | spotted by clang analyzer Signed-off-by: Xavier Chantry <chantry.xavier@gmail.com>
* | Style change: return(x) --> return xDan McGee2011-03-20
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was discussed and more or less agreed upon on the mailing list. A huge checkin, but if we just do it and let people adjust the pain will end soon enough. Rebasing should be relatively straighforward for anyone that sees conflicts; just be sure you use the new return style if possible. The following semantic patch was used to do the change, along with some hand-massaging in order to preserve parenthesis where appropriate: The semantic match that finds this problem is as follows, although some hand-massaging was done in order to keep parenthesis where appropriate: (http://coccinelle.lip6.fr/) // <smpl> @@ expression a; @@ - return(a); + return a; // </smpl> A macros_file was also provided with the following content: Additional steps taken, mainly for ASSERT() macros: $ sed -i -e 's#return(NULL)#return NULL#' lib/libalpm/*.c $ sed -i -e 's#return(-1)#return -1#' lib/libalpm/*.c Signed-off-by: Dan McGee <dan@archlinux.org>
* Fix some database size estimation problemsDan McGee2011-02-15
| | | | | | | | | | * Use stat() and not lstat(); we don't care for the size of the symlink if it is one, we want the size of the reference file. * FS#22896, fix local database estimation on platforms that don't abide by the nlink assumption for number of children. * Fix a missing newline on an error message. Signed-off-by: Dan McGee <dan@archlinux.org>
* Refactor out common code in pkghash add functionsPang Yan Han2011-02-07
| | | | | | | | | | The overlapping code in _alpm_pkghash_add() and _alpm_pkghash_add_sorted() are now in a new static function pkghash_add_pkg(). This function has a third flag parameter which determines whether the package should be added in sorted order. Signed-off-by: Pang Yan Han <pangyanhan@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* Improve pkghash_remove algorithmDan McGee2011-02-04
| | | | | | | | | | Rather than potentially move every item to the next NULL, attempt to move at most one item at a time by iterating backwards from the NULL location in the hash array. If we move an item, we repeat the process on the now shorter "chain" until no more items need moving. Signed-off-by: Dan McGee <dan@archlinux.org> Signed-off-by: Allan McRae <allan@archlinux.org>
* Use alpm_list_remove_item in pkghash_removeDan McGee2011-02-04
| | | | | | | Removes the code that was duplicated and has now been refactored into a separate method. Signed-off-by: Dan McGee <dan@archlinux.org>
* Actually remove packages from pkghash on removalAllan McRae2011-02-04
| | | | | | | | Fully removes a package from the hash. Also unify prototype with removal from an alpm_list_t, fixing issues when removing a package from the pkgcache. Signed-off-by: Allan McRae <allan@archlinux.org>
* Refactor finding position for new hash entryAllan McRae2011-02-04
| | | | Signed-off-by: Allan McRae <allan@archlinux.org>
* Rehash efficientlyAllan McRae2011-02-04
| | | | | | | Rehash without recreating the hash table list or reallocating the memory for holding the list nodes. Signed-off-by: Allan McRae <allan@archlinux.org>
* Slightly more efficient rehash size selectionAllan McRae2011-02-04
| | | | | | | | | While probably still not optimal in terms of everyday usage in pacman, this reduces the absolute size increase to "more reasonable" levels. For databases greater than 5000 in size, the minimum size increase is used which is still on the order of a 10% increase. Signed-off-by: Allan McRae <allan@archlinux.org>
* Error handling for maximum database sizeAllan McRae2011-02-04
| | | | | | | | Check that the requested size of a pkghash is not beyond the maximum prime. Also check for successful creation of a new hash before rehashing. Signed-off-by: Allan McRae <allan@archlinux.org>
* Implement a quick and dirty rehash functionDan McGee2011-02-04
| | | | | | | | This allows us to get through the rehash required by smoke001 and pass all pactests. It is by no means the best or most efficient implementation but it does do the job. Signed-off-by: Dan McGee <dan@archlinux.org>
* Add a hash table for holding packagesAllan McRae2011-02-04
Signed-off-by: Allan McRae <allan@archlinux.org>
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