14f6f0ad4
Denys Vlasenko
2009-06-18
Subject
fsync: new applet by Pekka Pessi (Pekka.Pessi AT nokia.com)
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No binary (build failed)
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Build Log
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Commit Diff GitHub →
coreutils/Config.in +6 -0coreutils/Kbuild +1 -0coreutils/fsync.c +41 -0include/applets.h +1 -0include/usage.h +8 -1
coreutils/Config.in+6 -0
| @@ -249,6 +249,12 @@ config FOLD | |
| help | |
| Wrap text to fit a specific width. | |
| + | config FSYNC |
| + | bool "fsync" |
| + | default n |
| + | help |
| + | fsync is used to flush file-related cached blocks to disk. |
| + | |
| config HEAD | |
| bool "head" | |
| default n | |
coreutils/Kbuild+1 -0
| @@ -36,6 +36,7 @@ lib-$(CONFIG_EXPR) += expr.o | |
| lib-$(CONFIG_EXPAND) += expand.o | |
| lib-$(CONFIG_FALSE) += false.o | |
| lib-$(CONFIG_FOLD) += fold.o | |
| + | lib-$(CONFIG_FSYNC) += fsync.o |
| lib-$(CONFIG_HEAD) += head.o | |
| lib-$(CONFIG_HOSTID) += hostid.o | |
| lib-$(CONFIG_ID) += id.o | |
coreutils/fsync.c+41 -0
| @@ -0,0 +1,41 @@ | |
| + | /* 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 tarball for details. |
| + | */ |
| + | #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 status; |
| + | int opts; |
| + | |
| + | opts = getopt32(argv, "d"); /* fdatasync */ |
| + | argv += optind; |
| + | if (!*argv) { |
| + | bb_show_usage(); |
| + | } |
| + | |
| + | status = EXIT_SUCCESS; |
| + | do { |
| + | int fd = open3_or_warn(*argv, O_NOATIME | O_NOCTTY | O_RDONLY, 0); |
| + | |
| + | if (fd == -1) { |
| + | status = EXIT_FAILURE; |
| + | continue; |
| + | } |
| + | if ((opts ? fdatasync(fd) : fsync(fd))) { |
| + | //status = EXIT_FAILURE; - do we want this? |
| + | bb_simple_perror_msg(*argv); |
| + | } |
| + | close(fd); |
| + | } while (*++argv); |
| + | |
| + | return status; |
| + | } |
include/applets.h+1 -0
| @@ -165,6 +165,7 @@ IF_FSCK(APPLET(fsck, _BB_DIR_SBIN, _BB_SUID_NEVER)) | |
| //IF_E2FSCK(APPLET_ODDNAME(fsck.ext2, e2fsck, _BB_DIR_SBIN, _BB_SUID_NEVER, fsck_ext2)) | |
| //IF_E2FSCK(APPLET_ODDNAME(fsck.ext3, e2fsck, _BB_DIR_SBIN, _BB_SUID_NEVER, fsck_ext3)) | |
| IF_FSCK_MINIX(APPLET_ODDNAME(fsck.minix, fsck_minix, _BB_DIR_SBIN, _BB_SUID_NEVER, fsck_minix)) | |
| + | IF_FSYNC(APPLET_NOFORK(fsync, fsync, _BB_DIR_BIN, _BB_SUID_NEVER, fsync)) |
| IF_FTPD(APPLET(ftpd, _BB_DIR_USR_SBIN, _BB_SUID_NEVER)) | |
| IF_FTPGET(APPLET_ODDNAME(ftpget, ftpgetput, _BB_DIR_USR_BIN, _BB_SUID_NEVER, ftpget)) | |
| IF_FTPPUT(APPLET_ODDNAME(ftpput, ftpgetput, _BB_DIR_USR_BIN, _BB_SUID_NEVER, ftpput)) | |
include/usage.h+8 -1
| @@ -4209,7 +4209,14 @@ | |
| #define sync_trivial_usage \ | |
| "" | |
| #define sync_full_usage "\n\n" \ | |
| - | "Write all buffered filesystem blocks to disk" |
| + | "Write all buffered blocks to disk" |
| + | |
| + | #define fsync_trivial_usage \ |
| + | "[OPTION]... FILE..." |
| + | #define fsync_full_usage \ |
| + | "Write files' buffered blocks to disk\n" \ |
| + | "\nOptions:" \ |
| + | "\n -d Avoid syncing metadata" |
| #define sysctl_trivial_usage \ | |
| "[OPTIONS]... [VALUE]..." | |