diff options
author | Denys Vlasenko <vda.linux@googlemail.com> | 2019-04-02 14:54:56 +0200 |
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committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-04-02 14:55:29 +0200 |
commit | 2f28b2bdbbe229b760e7c2a271d73a19f929ca76 (patch) | |
tree | d4607c6ac47cc0cfdde18109395777521142781a /coreutils/fsync.c | |
parent | 4f74bb6059b54df31b9a6cdaf844112a7003b0ff (diff) | |
download | busybox-2f28b2bdbbe229b760e7c2a271d73a19f929ca76.tar.gz |
fsync,sync: merge into one source module
With FEATURE_SYNC_FANCY not set:
function old new delta
fsync_main 130 123 -7
With FEATURE_SYNC_FANCY set, should be much larger code size savings.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'coreutils/fsync.c')
-rw-r--r-- | coreutils/fsync.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/coreutils/fsync.c b/coreutils/fsync.c deleted file mode 100644 index 216cbcf41..000000000 --- a/coreutils/fsync.c +++ /dev/null @@ -1,62 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Mini fsync implementation for busybox - * - * Copyright (C) 2008 Nokia Corporation. All rights reserved. - * - * Licensed under GPLv2 or later, see file LICENSE in this source tree. - */ -//config:config FSYNC -//config: bool "fsync (3.6 kb)" -//config: default y -//config: help -//config: fsync is used to flush file-related cached blocks to disk. - -// APPLET_NOFORK:name main location suid_type help -//applet:IF_FSYNC(APPLET_NOFORK(fsync, fsync, BB_DIR_BIN, BB_SUID_DROP, fsync)) - -//kbuild:lib-$(CONFIG_FSYNC) += fsync.o - -//usage:#define fsync_trivial_usage -//usage: "[-d] FILE..." -//usage:#define fsync_full_usage "\n\n" -//usage: "Write all buffered blocks in FILEs to disk\n" -//usage: "\n -d Avoid syncing metadata" - -#include "libbb.h" - -/* This is a NOFORK applet. Be very careful! */ - -int fsync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int fsync_main(int argc UNUSED_PARAM, char **argv) -{ - int ret; - int opts; - - opts = getopt32(argv, "d"); /* fdatasync */ - argv += optind; - if (!*argv) { - bb_show_usage(); - } - - ret = EXIT_SUCCESS; - do { - /* GNU "sync FILE" uses O_NONBLOCK open */ - int fd = open_or_warn(*argv, /*O_NOATIME |*/ O_NOCTTY | O_RDONLY | O_NONBLOCK); - /* open(NOATIME) can only be used by owner or root, don't use NOATIME here */ - - if (fd < 0) { - ret = EXIT_FAILURE; - goto next; - } - if ((opts ? fdatasync(fd) : fsync(fd)) != 0) { - bb_simple_perror_msg(*argv); - ret = EXIT_FAILURE; - } - close(fd); - next: - argv++; - } while (*argv); - - return ret; -} |