From b7015af0fc9325740950223e719f6dec153e264b Mon Sep 17 00:00:00 2001 From: Dan McGee Date: Tue, 16 Nov 2010 20:12:27 -0600 Subject: diskspace style cleanups and small fixes * Use our normal return() function syntax * Rework a few things to reduce number of casts * Fix void function argument declaration * Add missing gettext _() call * Remove need for seperate malloc() of statvfs/statfs structure * Unify argument order of static functions- mountpoints now always passed first * Count all files that start with '.' in a package against the DB * Rename db to db_local in check_diskspace to clarify some code * Fix some line wrapping to respect 80 characters Signed-off-by: Dan McGee Signed-off-by: Allan McRae --- lib/libalpm/diskspace.c | 101 +++++++++++++++++++++++++----------------------- 1 file changed, 53 insertions(+), 48 deletions(-) (limited to 'lib/libalpm/diskspace.c') diff --git a/lib/libalpm/diskspace.c b/lib/libalpm/diskspace.c index ad6ceba5..5ed8e0be 100644 --- a/lib/libalpm/diskspace.c +++ b/lib/libalpm/diskspace.c @@ -52,12 +52,14 @@ #include "trans.h" #include "handle.h" -static int mount_point_cmp(const alpm_mountpoint_t *mp1, const alpm_mountpoint_t *mp2) +static int mount_point_cmp(const void *p1, const void *p2) { + const alpm_mountpoint_t *mp1 = p1; + const alpm_mountpoint_t *mp2 = p2; return(strcmp(mp1->mount_dir, mp2->mount_dir)); } -static alpm_list_t *mount_point_list() +static alpm_list_t *mount_point_list(void) { alpm_list_t *mount_points = NULL; alpm_mountpoint_t *mp; @@ -70,20 +72,19 @@ static alpm_list_t *mount_point_list() fp = setmntent(MOUNTED, "r"); if (fp == NULL) { - return NULL; + return(NULL); } - while((mnt = getmntent (fp))) { + while((mnt = getmntent(fp))) { if(statvfs(mnt->mnt_dir, &fsp) != 0) { - _alpm_log(PM_LOG_WARNING, "could not get filesystem information for %s\n", mnt->mnt_dir); + _alpm_log(PM_LOG_WARNING, + _("could not get filesystem information for %s\n"), mnt->mnt_dir); continue; } MALLOC(mp, sizeof(alpm_mountpoint_t), RET_ERR(PM_ERR_MEMORY, NULL)); mp->mount_dir = strdup(mnt->mnt_dir); - - MALLOC(mp->fsp, sizeof(FSSTATSTYPE), RET_ERR(PM_ERR_MEMORY, NULL)); - memcpy((void *)(mp->fsp), (void *)(&fsp), sizeof(FSSTATSTYPE)); + memcpy(&(mp->fsp), &fsp, sizeof(FSSTATSTYPE)); mp->blocks_needed = 0; mp->max_blocks_needed = 0; @@ -106,9 +107,7 @@ static alpm_list_t *mount_point_list() for(; entries-- > 0; fsp++) { MALLOC(mp, sizeof(alpm_mountpoint_t), RET_ERR(PM_ERR_MEMORY, NULL)); mp->mount_dir = strdup(fsp->f_mntonname); - - MALLOC(mp->fsp, sizeof(FSSTATSTYPE), RET_ERR(PM_ERR_MEMORY, NULL)); - memcpy((void *)(mp->fsp), (void *)fsp, sizeof(FSSTATSTYPE)); + memcpy(&(mp->fsp), fsp, sizeof(FSSTATSTYPE)); mp->blocks_needed = 0; mp->max_blocks_needed = 0; @@ -118,11 +117,12 @@ static alpm_list_t *mount_point_list() #endif mount_points = alpm_list_msort(mount_points, alpm_list_count(mount_points), - (alpm_list_fn_cmp)mount_point_cmp); + mount_point_cmp); return(mount_points); } -static alpm_list_t *match_mount_point(const alpm_list_t *mount_points, const char *file) +static alpm_list_t *match_mount_point(const alpm_list_t *mount_points, + const char *file) { char real_path[PATH_MAX]; snprintf(real_path, PATH_MAX, "%s%s", handle->root, file); @@ -132,17 +132,18 @@ static alpm_list_t *match_mount_point(const alpm_list_t *mount_points, const cha alpm_mountpoint_t *data = mp->data; if(strncmp(data->mount_dir, real_path, strlen(data->mount_dir)) == 0) { - return mp; + return(mp); } mp = mp->prev; } while (mp != alpm_list_last(mount_points)); /* should not get here... */ - return NULL; + return(NULL); } -static int calculate_removed_size(pmpkg_t *pkg, const alpm_list_t *mount_points) +static int calculate_removed_size(const alpm_list_t *mount_points, + pmpkg_t *pkg) { alpm_list_t *file; @@ -152,37 +153,41 @@ static int calculate_removed_size(pmpkg_t *pkg, const alpm_list_t *mount_points) alpm_mountpoint_t *data; struct stat st; char path[PATH_MAX]; + const char *filename = file->data; - /* skip directories to be consistent with libarchive that reports them to be zero size - and to prevent multiple counting across packages */ - if(*((char *)(file->data) + strlen(file->data) - 1) == '/') { + /* skip directories to be consistent with libarchive that reports them + * to be zero size and to prevent multiple counting across packages */ + if(*(filename + strlen(filename) - 1) == '/') { continue; } - mp = match_mount_point(mount_points, file->data); + mp = match_mount_point(mount_points, filename); if(mp == NULL) { - _alpm_log(PM_LOG_WARNING, _("could not determine mount point for file %s"), (char *)(file->data)); + _alpm_log(PM_LOG_WARNING, + _("could not determine mount point for file %s"), filename); continue; } - snprintf(path, PATH_MAX, "%s%s", handle->root, (char *)file->data); + snprintf(path, PATH_MAX, "%s%s", handle->root, filename); _alpm_lstat(path, &st); - /* skip symlinks to be consistent with libarchive that reports them to be zero size */ + /* skip symlinks to be consistent with libarchive that reports them to + * be zero size */ if(S_ISLNK(st.st_mode)) { continue; } data = mp->data; data->blocks_needed -= ceil((double)(st.st_size) / - (double)(data->fsp->f_bsize)); + (double)(data->fsp.f_bsize)); data->used = 1; } - return 0; + return(0); } -static int calculate_installed_size(pmpkg_t *pkg, const alpm_list_t *mount_points) +static int calculate_installed_size(const alpm_list_t *mount_points, + pmpkg_t *pkg) { int ret=0; struct archive *archive; @@ -212,31 +217,30 @@ static int calculate_installed_size(pmpkg_t *pkg, const alpm_list_t *mount_point file = archive_entry_pathname(entry); /* approximate space requirements for db entries */ - if(strcmp(file, ".PKGINFO") == 0 || - strcmp(file, ".INSTALL") == 0 || - strcmp(file, ".CHANGELOG") == 0) { + if(file[0] == '.') { file = alpm_option_get_dbpath(); } mp = match_mount_point(mount_points, file); if(mp == NULL) { - _alpm_log(PM_LOG_WARNING, _("could not determine mount point for file %s"), archive_entry_pathname(entry)); + _alpm_log(PM_LOG_WARNING, + _("could not determine mount point for file %s"), file); continue; } data = mp->data; data->blocks_needed += ceil((double)(archive_entry_size(entry)) / - (double)(data->fsp->f_bsize)); + (double)(data->fsp.f_bsize)); data->used = 1; } archive_read_finish(archive); cleanup: - return ret; + return(ret); } -int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db) +int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db_local) { alpm_list_t *mount_points, *i; int replaces = 0, abort = 0; @@ -247,8 +251,8 @@ int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db) mount_points = mount_point_list(); if(mount_points == NULL) { - _alpm_log(PM_LOG_ERROR, _("count not determine filesystem mount points")); - return -1; + _alpm_log(PM_LOG_ERROR, _("could not determine filesystem mount points")); + return(-1); } replaces = alpm_list_count(trans->remove); @@ -257,23 +261,24 @@ int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db) for(targ = trans->remove; targ; targ = targ->next, current++) { double percent = (double)current / numtargs; PROGRESS(trans, PM_TRANS_PROGRESS_DISKSPACE_START, "", (percent * 100), - numtargs, current); + numtargs, current); - pkg = (pmpkg_t*)targ->data; - calculate_removed_size(pkg, mount_points); + pkg = targ->data; + calculate_removed_size(mount_points, pkg); } } for(targ = trans->add; targ; targ = targ->next, current++) { double percent = (double)current / numtargs; PROGRESS(trans, PM_TRANS_PROGRESS_DISKSPACE_START, "", (percent * 100), - numtargs, current); + numtargs, current); - pkg = (pmpkg_t*)targ->data; - if(_alpm_db_get_pkgfromcache(db, pkg->name)) { - calculate_removed_size(pkg, mount_points); + pkg = targ->data; + /* is this package already installed? */ + if(_alpm_db_get_pkgfromcache(db_local, pkg->name)) { + calculate_removed_size(mount_points, pkg); } - calculate_installed_size(pkg, mount_points); + calculate_installed_size(mount_points, pkg); for(i = mount_points; i; i = alpm_list_next(i)) { alpm_mountpoint_t *data = i->data; @@ -284,14 +289,15 @@ int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db) } PROGRESS(trans, PM_TRANS_PROGRESS_DISKSPACE_START, "", 100, - numtargs, current); + numtargs, current); for(i = mount_points; i; i = alpm_list_next(i)) { alpm_mountpoint_t *data = i->data; if(data->used == 1) { _alpm_log(PM_LOG_DEBUG, "partition %s, needed %ld, free %ld\n", - data->mount_dir, data->max_blocks_needed, (long int)(data->fsp->f_bfree)); - if(data->max_blocks_needed > data->fsp->f_bfree) { + data->mount_dir, data->max_blocks_needed, + (unsigned long)data->fsp.f_bfree); + if(data->max_blocks_needed > data->fsp.f_bfree) { abort = 1; } } @@ -300,7 +306,6 @@ int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db) for(i = mount_points; i; i = alpm_list_next(i)) { alpm_mountpoint_t *data = i->data; FREE(data->mount_dir); - FREE(data->fsp); } FREELIST(mount_points); @@ -308,7 +313,7 @@ int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db) RET_ERR(PM_ERR_DISK_SPACE, -1); } - return 0; + return(0); } /* vim: set ts=2 sw=2 noet: */ -- cgit v1.2.3-24-g4f1b