From 8fe383860e4406d0becf34d2410155e8c93dd494 Mon Sep 17 00:00:00 2001 From: Dave Reisner Date: Wed, 11 Jul 2012 09:59:49 -0400 Subject: lib/be_package: use qsort instead of our own msort On the assumption that these arrays are already mostly sorted, use the standard quicksort method to sort the files arrays. The files_msort function name is tweaked to give it a more general name to reflect this change. Signed-off-by: Dave Reisner Signed-off-by: Dan McGee --- lib/libalpm/be_package.c | 52 +++--------------------------------------------- 1 file changed, 3 insertions(+), 49 deletions(-) (limited to 'lib') diff --git a/lib/libalpm/be_package.c b/lib/libalpm/be_package.c index dd027f5e..07c75a16 100644 --- a/lib/libalpm/be_package.c +++ b/lib/libalpm/be_package.c @@ -248,53 +248,6 @@ static int parse_descfile(alpm_handle_t *handle, struct archive *a, alpm_pkg_t * return 0; } -static void files_merge(alpm_file_t a[], alpm_file_t b[], alpm_file_t c[], - size_t m, size_t n) -{ - size_t i = 0, j = 0, k = 0; - while(i < m && j < n) { - if(strcmp(a[i].name, b[j].name) < 0) { - c[k++] = a[i++]; - } else { - c[k++] = b[j++]; - } - } - while(i < m) { - c[k++] = a[i++]; - } - while(j < n) { - c[k++] = b[j++]; - } -} - -static alpm_file_t *files_msort(alpm_file_t *files, size_t n) -{ - alpm_file_t *work; - size_t blocksize = 1; - - CALLOC(work, n, sizeof(alpm_file_t), return NULL); - - for(blocksize = 1; blocksize < n; blocksize *= 2) { - size_t i, max_extent = 0; - for(i = 0; i < n - blocksize; i += 2 * blocksize) { - /* this limits our actual merge to the length of the array, since we will - * not likely be a perfect power of two. */ - size_t right_blocksize = blocksize; - if(i + blocksize * 2 > n) { - right_blocksize = n - i - blocksize; - } - files_merge(files + i, files + i + blocksize, work + i, - blocksize, right_blocksize); - max_extent = i + blocksize + right_blocksize; - } - /* ensure we only copy what we actually touched on this merge pass, - * no more, no less */ - memcpy(files, work, max_extent * sizeof(alpm_file_t)); - } - free(work); - return files; -} - /** * Validate a package. * @param handle the context handle @@ -536,8 +489,9 @@ alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle, /* "checking for conflicts" requires a sorted list, ensure that here */ _alpm_log(handle, ALPM_LOG_DEBUG, "sorting package filelist for %s\n", pkgfile); - newpkg->files.files = files_msort(newpkg->files.files, - newpkg->files.count); + + qsort(newpkg->files.files, newpkg->files.count, + sizeof(alpm_file_t), _alpm_files_cmp); } newpkg->infolevel |= INFRQ_FILES; } -- cgit v1.2.3-70-g09d2