From 29bf6814f74096e5d8ea22058e638eb362717b8a Mon Sep 17 00:00:00 2001 From: Dan McGee Date: Sun, 15 Jun 2008 19:15:36 -0500 Subject: Use access() instead of stat() when possible We were using the stat() system call in quite a few places when we didn't actually need anything the stat struct returned- we were simply checking for file existence. access() will be more efficient in those cases. Before (strace pacman -Ss pacman): % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 33.16 0.005987 0 19016 stat64 After: % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 34.85 0.003863 0 12633 1 access 7.95 0.000881 0 6391 7 stat64 Signed-off-by: Dan McGee --- src/pacman/package.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'src/pacman/package.c') diff --git a/src/pacman/package.c b/src/pacman/package.c index 1698806f..06800378 100644 --- a/src/pacman/package.c +++ b/src/pacman/package.c @@ -22,8 +22,8 @@ #include #include #include +#include #include -#include #include #include @@ -176,7 +176,6 @@ void dump_pkg_backups(pmpkg_t *pkg) if(alpm_pkg_get_backup(pkg)) { /* package has backup files, so print them */ for(i = alpm_pkg_get_backup(pkg); i; i = alpm_list_next(i)) { - struct stat buf; char path[PATH_MAX]; char *str = strdup(alpm_list_getdata(i)); char *ptr = index(str, '\t'); @@ -188,7 +187,7 @@ void dump_pkg_backups(pmpkg_t *pkg) ptr++; snprintf(path, PATH_MAX-1, "%s%s", root, str); /* if we find the file, calculate checksums, otherwise it is missing */ - if(!stat(path, &buf)) { + if(access(path, R_OK) == 0) { char *md5sum = alpm_get_md5sum(path); if(md5sum == NULL) { -- cgit v1.2.3