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path: root/lib/libalpm/alpm_list.c
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* Improved alpm_list_mmerge() performance (fixed coding style)Diogo Sousa2011-08-24
| | | | | | | | | | Improved alpm_list_mmerge() performance by removing an extra pass to obtain the tail node. This was actually suggested by a TODO comment. Signed-off-by: Diogo Sousa <diogogsousa@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* Convert package filelists to an array instead of linked listDan McGee2011-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This accomplishes quite a few things with one rather invasive change. 1. Iteration is much more performant, due to a reduction in pointer chasing and linear item access. 2. Data structures are smaller- we no longer have the overhead of the linked list as the file struts are now laid out consecutively in memory. 3. Memory allocation has been massively reworked. Before, we would allocate three different pieces of memory per file item- the list struct, the file struct, and the copied filename. What this resulted in was massive fragmentation of memory when loading filelists since the memory allocator had to leave holes all over the place. The new situation here now removes the need for any list item allocation; allocates the file structs in contiguous memory (and reallocs as necessary), leaving only the strings as individually allocated. Tests using valgrind (massif) show some pretty significant memory reductions on the worst case `pacman -Ql > /dev/null` (366387 files on my machine): Before: Peak heap: 54,416,024 B Useful heap: 36,840,692 B Extra heap: 17,575,332 B After: Peak heap: 38,004,352 B Useful heap: 28,101,347 B Extra heap: 9,903,005 B Several small helper methods have been introduced, including a list to array conversion helper as well as a filelist merge sort that works directly on arrays. Signed-off-by: Dan McGee <dan@archlinux.org>
* Simplify alpm_list_previousAllan McRae2011-07-05
| | | | | | | | | | We can readily detect the first node in a list by checking if node->prev->next is NULL. So there is no need to pass the head of the list to this function and its prototype now looks like all the other item accessors. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove alpm_list_firstAllan McRae2011-07-05
| | | | | | | | | The only thing this accessor did was remove the const qualifier given our entire list implementation requires passing around the head anyway. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Add alpm_list_previous methodAllan McRae2011-07-03
| | | | | | | Helper function to get the previous item in a list Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Merge branch 'maint'Dan McGee2011-06-01
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| * alpm_list: fix typo in doxygen commentPang Yan Han2011-05-24
| | | | | | | | | | Signed-off-by: Pang Yan Han <pangyanhan@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* | Header inclusion cleanupDan McGee2011-04-20
| | | | | | | | | | | | | | | | This does touch a lot of things, and hopefully doesn't break things on other platforms, but allows us to also clean up a bunch of crud that no longer needs to be there. Signed-off-by: Dan McGee <dan@archlinux.org>
* | syntax: if/while statements should have no trailing spaceDan McGee2011-04-20
| | | | | | | | | | | | | | | | | | | | | | This is the standard, and we have had a few of these introduced lately that should not be here. Done with: find -name '*.c' | xargs sed -i -e 's#if (#if(#g' find -name '*.c' | xargs sed -i -e 's#while (#while(#g' Signed-off-by: Dan McGee <dan@archlinux.org>
* | 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>
* alpm_list: fix typo in doxygen commentDave Reisner2011-03-16
| | | | | Signed-off-by: Dave Reisner <d@falconindy.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* Add new alpm_list_remove_item() functionDan McGee2011-02-04
| | | | | | | | | | | | This takes in the list and a list item, and does the pointer dance necessary to remove it from the list regardless of whether it is first, last, or somewhere in the middle. It is useful for callers that already know what item needs to be removed and have a pointer to it rather than doing a search by data that the plain alpm_list_remove() does. Refactor alpm_list_remove() to use this function as well. Signed-off-by: Dan McGee <dan@archlinux.org>
* Use size_t for alpm_list sizesAllan McRae2011-01-07
| | | | | | | | | | | | | There is a lot of swtiching between size_t and int for alpm_list sizes in the codebase. Start converting these to all be size_t by adjusting the return type of alpm_list_count and fixing all additional warnings given by -Wconversion that are generated by this change. Dan: a few more small changes to ensure things compile, adjusting some printf format string characters to accommodate the larger size on x86_64. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Update copyright years for 2011Allan McRae2011-01-07
| | | | | Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list_diff_sorted - make some arguments constAllan McRae2010-03-25
| | | | | Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Bump copyright dates to 2010Dan McGee2010-03-14
| | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* Fix a small typo in alpm_list.cLaszlo Papp2009-10-24
| | | | | Signed-off-by: Laszlo Papp <djszapi@archlinux.us> Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list : add new alpm_list_diff_sorted functionXavier Chantry2009-10-11
| | | | | | | | | | | | This is more efficient than alpm_list_diff since it assumes the two lists are sorted. And also we get the two sides of the diff. Even sorting should more efficient than the current list_diff. Sorting the two lists should be O(n*log(n)+m*log(m)) while the current list_diff is O(n*m). So I also reimplemented list_diff using list_diff_sorted. Signed-off-by: Xavier Chantry <shiningxc@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list : fix a bug in alpm_list_removeXavier Chantry2009-10-11
| | | | | | | A NULL list element triggered an infinite loop. Not cool :) Signed-off-by: Xavier Chantry <shiningxc@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* Update copyright headers and messagesDan McGee2009-07-01
| | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list_remove treat NULL needle as "nothing"Nagy Gabor2008-07-17
| | | | | | | | So if you want to remove NULL needle from a list, alpm_list_remove will return with "not found". Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu> Signed-off-by: Dan McGee <dan@archlinux.org>
* Cleanup usages of alpm_list_find and alpm_list_remove.Chantry Xavier2008-05-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * remove obsolete and unused *_cmp helper functions like deppkg_cmp and _alpm_grp_cmp * new alpm_list_remove_str function, used 6 times in handle.c * remove _alpm_prov_cmp / _alpm_db_whatprovides and replace them by a more general alpm_find_pkg_satisfiers with a cleaner implementation. before: alpm_db_whatprovides(db, targ) after: alpm_find_pkg_satisfiers(alpm_db_getpkgcache(db), targ) * remove satisfycmp and replace alpm_list_find + satisfycmp usage by _alpm_find_dep_satisfiers. before : alpm_list_find(_alpm_db_get_pkgcache(db), dep, satisfycmp) after : _alpm_find_dep_satisfiers(_alpm_db_get_pkgcache(db), dep) * remove _alpm_pkgname_pkg_cmp, which was used with alpm_list_remove, and use _alpm_pkg_find + alpm_list_remove with _alpm_pkg_cmp instead. This commit actually get rids of all complicated and asymmetric _cmp functions. I first thought these functions were worth it, be caused it allowed us to reuse list_find and list_remove. But this was at the detriment of the clarity and also the ease of use of these functions, dangerous because of their asymmetricity. Signed-off-by: Chantry Xavier <shiningxc@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* More cleanup to alpm_listDan McGee2008-02-24
| | | | | | | * Remove some #include statements that are not strictly necessary * Remove node_new function that is really just a one-liner Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list.c clean-upNagy Gabor2008-02-25
| | | | | | | | | | * Introduces 'list == NULL' convention for empty list. That means alpm_list_new isn't needed anymore, so kill it * Small straightforward fixes in alpm_list.c Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu> Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
* Update GNU GPL boilerplate and copyright datesDan McGee2007-12-10
| | | | | | | Update the GPL boilerplate to direct people to the GNU website for a copy of the license, as well as bump all of Judd's copyrights to 2007. Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list : change the alpm_list_find* to return the matching item.Chantry Xavier2007-12-02
| | | | | | | | alpm_list_find and alpm_list_find_ptr will now return a void *, and alpm_list_find_str will return a char *, instead of an int. Signed-off-by: Chantry Xavier <shiningxc@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* New alpm_list_join functionNagy Gabor2007-11-20
| | | | | | | This O(1) function joins 2 lists. Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu> Signed-off-by: Dan McGee <dan@archlinux.org>
* Generalized alpm_list_find.Nagy Gabor2007-11-17
| | | | | | | | | | | | | The old alpm_list_find was renamed to alpm_list_find_ptr, and a new alpm_list_find was introduced, which uses the fn comparison-function parameter in its decision. Now both alpm_list_find_ptr (a new ptrcmp helper function was also added) and alpm_list_find_str are just an alpm_list_find call. Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu> Signed-off-by: Chantry Xavier <shiningxc@gmail.com> [Dan: made ptrcmp a static function] Signed-off-by: Dan McGee <dan@archlinux.org>
* War on whitespaceDan McGee2007-11-16
| | | | | | Run the kernel's cleanfile script on all of our source files. Signed-off-by: Dan McGee <dan@archlinux.org>
* Fix alpm_list_copy_dataDan McGee2007-11-14
| | | | | | | | | | So I spent a good 4 hours tracking a bug down tonight due to alpm_list_copy_data not actually doing what I expected to do. We can't find the size of an object we don't know the type of, so rewrite it so we pass in the size explicitly. This was making _alpm_pkg_dup fail and causing all sorts of other issues. Signed-off-by: Dan McGee <dan@archlinux.org>
* alpm_list_add == alpm_list_add_lastNagy Gabor2007-11-14
| | | | | | | | | | | | | | It's time to define that alpm_list_add(list, foo) adds 'foo' to the end of 'list' and returns with 'list', because: 1. list is a list, not a set. 2. sortbydeps _needs_ an alpm_list_add definition to work properly. As a first step, I used this definition in recursedeps. Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu> [Dan: punctuation cleanup in commit message and code comments, added comment to alpm_list_add] Signed-off-by: Dan McGee <dan@archlinux.org>
* Ensure list tail pointer is updated when we remove tail nodeDan McGee2007-11-11
| | | | | | | | Commit 2ee90ddae23dd86c68223c0d6c49f0b92d62429d did a special check to see if we were removing the head node, but not the tail node. Add a special case for the tail node to ensure all relevant pointers get updated. Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove unused and broken alpm_list_remove_node functionDan McGee2007-11-11
| | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* Maintain list tail pointers in the head nodeAaron Griffin2007-11-06
| | | | | | | | | | | | | | | | | | | | | | | | | List head nodes contain null 'prev' pointer, which we can (ab)use to maintain a back reference to the tail pointer of the list. While list additions are not _significantly_ improved, they are still sped up. Original $ time pacman -Qo /usr/bin/wtpt /usr/bin/wtpt is owned by lcms 1.17-2 real 0m3.623s user 0m1.883s sys 0m1.473s New $ time pacman -Qo /usr/bin/wtpt /usr/bin/wtpt is owned by lcms 1.17-2 real 0m2.006s user 0m0.263s sys 0m1.627s Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>
* Add a little const correctness fix to alpm_listDan McGee2007-11-04
| | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* Make general list copy functionDan McGee2007-10-29
| | | | | | | | | Package dup needs to copy all members. Nathan had his implementation, but I generalized it to this new alpm_list function (and will use it in the next commit). CC: Nathan Jones <nathanj@insightbb.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* Add pmdelta_t structure and functions to libalpm.Nathan Jones2007-10-19
| | | | | Signed-off-by: Nathan Jones <nathanj@insightbb.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* libalpm/alpm_list.c : add SYMEXPORT to all alpm_list_ functions.Chantry Xavier2007-07-20
| | | | Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
* Const correctness!Dan McGee2007-06-05
| | | | | | | | | Add some 'const' keywords all over the code to make it a bit more strict on what you can and can't do with data. This is especially important when we return pointers to the pacman frontend- ideally this would always be untouchable data. Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove unnecessary casts on malloc and elsewhereDan McGee2007-05-14
| | | | | | | | | We had many unnecessary casts, most of them dealing with malloc and other memory allocations. The variable type should take care of it; no need to do it explicitly. In addition, I caught a const error while removing the casts. Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove FREESERVER macro and correctly type _alpm_server_freeDan McGee2007-04-27
| | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* Doxygen fixups for libalpmDan McGee2007-03-29
| | | | | | | | | | We haven't done a whole lot with Doxygen so far, so this updates some of the things that have changed a lot- namely, the now public exposure of alpm_list. All functions in this file have now been Doxygen commented, and a few other things in alpm.c were fixed as well. In addition, the Doxygen config file was updated. Signed-off-by: Dan McGee <dan@archlinux.org>
* * Fix group comparison issue and associated compilation warnings by usingDan McGee2007-03-11
| | | | | | | the alpm strcmp operation which takes void* references. * We had this great visibility patch, but never actually took advantage of it. Added the right compile flag to make it work and added some more SYMEXPORTs where necessary to have a successful compile.
* This commit looks much more monumental than it is. Almost all just #includeDan McGee2007-03-05
| | | | | | | | reordering and adding ones that were forgotten (noticed when trying to compile after reordering). * Updated the HACKING file to include information on #include usage. * print -> vprint in "making dir" function in pactest.
* Big commit this time:Aaron Griffin2007-03-03
| | | | | | | | | | | | | | | | | | | | | | | * Moved entirely to alpm_pkg_get_* accessors, to read data on demand * Mostly removed the INFRQ_ parameters from outside the be_files backend (making the backend more extensible in the long run) * packages created from _alpm_db_scan now have the db and origin set (making accessors actually work for these packages) * removed _alpm_db_ensure_pkgcache * totally revamped the _alpm_checkconflicts function, making it cleaner and easier to read (and thus fix in the long run) - maintainable code ftw NOTE: feel free to rename the functions... I couldn't think of anything better * removed an extra loop in sync.c:find_replacements - no sense in looping over an entire DB while strcmp'ing the name, when we have get_pkgfromcache Other: * package struct "license" -> "licenses" * Created _alpm_sync_find (duplicate code in some places, find_pkginsync * Minor const correctness changes along the way * fixed a couple extra '/' pathing issues (non-issues really) * removed a duplicate pkg_cmp function
* * Modified values of INFRQ_* options so we start at 0x01 and not 0x00. ThisDan McGee2007-03-01
| | | | | | | | | | | | allows for the same bit operators to be used across the board on pkg_get operations. * Changed name of INFRQ_NONE -> INFRQ_BASE to more clearly reflect what it does (loads pkg name and version). * Added a few missing things on package functions, such as SYMEXPORT and ALPM_LOG_FUNC. * Slight updates to pmenv to print 'pass' and 'fail' instead of 'passed' and 'failed'. Keeps output a bit more concise. * Fixed a doxygen comment spelling error. :P
* * Switched some functions to alpm_pkg_get_* usage as I came across themAaron Griffin2007-03-01
| | | | | | | | | | | * Added some provision switching hackery. This could probably use some refactoring,.. it solves the following case: pkg1 and pkg2 provide 'foo' and are both installed pkg3 depends on 'foo' and so lists 'pkg1' in the REQUIREDBY db section pkg1 is upgraded and no longer provides 'foo' ** This code ensures that the REQUIREDBY of pkg3 is updated to require pkg2 now instead of pkg1
* K. Piche <kpiche@rogers.com>Aaron Griffin2007-01-30
| | | | | | | * gcc visiblity changes Also modified _alpm_versioncmp -> alpm_versioncmp (public function) as per K. Piche's suggestions
* Discussed on IRC for a bit, this makes the following changes for clarity:Dan McGee2007-01-30
| | | | | | | | * alpm_list_is_in --> alpm_list_find * alpm_list_is_strin --> alpm_list_find_str * Flip parameters of both functions to be inline with rest of alpm_list. First commit, woohoo.
* * Shuffled some of the alpm_list free funtions - still not perfect, but betterAaron Griffin2007-01-24
| | | | | | | | | | * Added alpm_list_remove_node for single list node removal * Proper error checking/output for failed db_read/db_write (missing files) * Invalid packages (missing files) are now removed from the package cache * -Qs and -Ss output now look the same * config.rpath causes errors on one machine I had, so I added it to CVS * Fixed a "clobbered memory" issue when installing groups - only the outer list should be free'd, not the contained data
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