This saves replicating the list of files in a package that is being removed which can be quite large.
Signed-off-by: Allan McRae <[email protected]> --- The tradeoff here is a slightly less readable loop, but duplicating that list just struck me as wasteful. lib/libalpm/remove.c | 41 +++++++++++++++++++++++------------------ 1 files changed, 23 insertions(+), 18 deletions(-) diff --git a/lib/libalpm/remove.c b/lib/libalpm/remove.c index cc6daea..2d75a84 100644 --- a/lib/libalpm/remove.c +++ b/lib/libalpm/remove.c @@ -285,8 +285,7 @@ static void unlink_file(pmhandle_t *handle, pmpkg_t *info, const char *filename, int _alpm_upgraderemove_package(pmhandle_t *handle, pmpkg_t *oldpkg, pmpkg_t *newpkg) { - alpm_list_t *skip_remove, *b; - alpm_list_t *newfiles, *lp; + alpm_list_t *skip_remove, *b, *lp; size_t filenum=0; alpm_list_t *files = alpm_pkg_get_files(oldpkg); const char *pkgname = alpm_pkg_get_name(oldpkg); @@ -329,11 +328,15 @@ int _alpm_upgraderemove_package(pmhandle_t *handle, _alpm_log(handle, PM_LOG_DEBUG, "removing %ld files\n", (unsigned long)filenum); /* iterate through the list backwards, unlinking files */ - newfiles = alpm_list_reverse(files); - for(lp = newfiles; lp; lp = alpm_list_next(lp)) { - unlink_file(handle, oldpkg, lp->data, skip_remove, 0); + if(files) { + alpm_list_t *last = alpm_list_last(files); + lp = last; + do { + unlink_file(handle, oldpkg, lp->data, skip_remove, 0); + lp = lp->prev; + } while (lp != last); } - alpm_list_free(newfiles); + FREELIST(skip_remove); db: @@ -390,7 +393,6 @@ int _alpm_remove_packages(pmhandle_t *handle) if(!(trans->flags & PM_TRANS_FLAG_DBONLY)) { alpm_list_t *files = alpm_pkg_get_files(info); - alpm_list_t *newfiles; size_t filenum=0; for(lp = files; lp; lp = lp->next) { @@ -409,18 +411,21 @@ int _alpm_remove_packages(pmhandle_t *handle) pkg_count, (pkg_count - targcount + 1)); /* iterate through the list backwards, unlinking files */ - newfiles = alpm_list_reverse(files); - for(lp = newfiles; lp; lp = alpm_list_next(lp)) { - int percent; - unlink_file(handle, info, lp->data, NULL, trans->flags & PM_TRANS_FLAG_NOSAVE); - - /* update progress bar after each file */ - percent = (position * 100) / filenum; - PROGRESS(trans, PM_TRANS_PROGRESS_REMOVE_START, info->name, - percent, pkg_count, (pkg_count - targcount + 1)); - position++; + if(files) { + alpm_list_t *last = alpm_list_last(files); + lp = last; + do { + int percent; + unlink_file(handle, info, lp->data, NULL, trans->flags & PM_TRANS_FLAG_NOSAVE); + + /* update progress bar after each file */ + percent = (position * 100) / filenum; + PROGRESS(trans, PM_TRANS_PROGRESS_REMOVE_START, info->name, + percent, pkg_count, (pkg_count - targcount + 1)); + position++; + lp = lp->prev; + } while (lp != last); } - alpm_list_free(newfiles); } /* set progress to 100% after we finish unlinking files */ -- 1.7.5.4
