source: mainline/uspace/srv/fs/ext4fs/ext4fs.c@ a53ed3a

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since a53ed3a was b7fd2a0, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 7 years ago

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.

  • Property mode set to 100644
File size: 2.7 KB
RevLine 
[5dd4f77a]1/*
[f22d5ef0]2 * Copyright (c) 2012 Frantisek Princ
[5dd4f77a]3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup fs
30 * @{
[38542dc]31 */
[5dd4f77a]32/**
[38542dc]33 * @file ext4fs.c
34 * @brief Ext4 file system driver for HelenOS.
[5dd4f77a]35 */
36
[d3a9ae74]37#include <async.h>
38#include <errno.h>
39#include <libfs.h>
40#include <ns.h>
41#include <stdio.h>
42#include <task.h>
43#include <ipc/services.h>
[81dd2ed]44#include "ext4/ops.h"
[d3a9ae74]45#include "../../vfs/vfs.h"
46
[38542dc]47#define NAME "ext4fs"
[5dd4f77a]48
49vfs_info_t ext4fs_vfs_info = {
50 .name = NAME,
[38542dc]51 .instance = 0
[5dd4f77a]52};
53
54int main(int argc, char **argv)
55{
[6266cc6]56 printf("%s: HelenOS ext4 file system server\n", NAME);
[38542dc]57
[5dd4f77a]58 if (argc == 3) {
59 if (!str_cmp(argv[1], "--instance"))
60 ext4fs_vfs_info.instance = strtol(argv[2], NULL, 10);
61 else {
[38542dc]62 printf("%s: Unrecognized parameters\n", NAME);
63 return 1;
[5dd4f77a]64 }
65 }
[38542dc]66
[f9b2cb4c]67 async_sess_t *vfs_sess = service_connect_blocking(SERVICE_VFS,
68 INTERFACE_VFS_DRIVER, 0);
[d3a9ae74]69 if (!vfs_sess) {
[38542dc]70 printf("%s: Failed to connect to VFS\n", NAME);
71 return 2;
[d3a9ae74]72 }
[38542dc]73
[b7fd2a0]74 errno_t rc = ext4_global_init();
[d3a9ae74]75 if (rc != EOK) {
[38542dc]76 printf("%s: Global initialization failed\n", NAME);
77 return rc;
[d3a9ae74]78 }
[38542dc]79
[be39fc6]80 rc = fs_register(vfs_sess, &ext4fs_vfs_info, &ext4_ops,
81 &ext4_libfs_ops);
[d3a9ae74]82 if (rc != EOK) {
[38542dc]83 printf("%s: Failed to register file system\n", NAME);
84 return rc;
[d3a9ae74]85 }
[38542dc]86
87 printf("%s: Accepting connections\n", NAME);
[5dd4f77a]88 task_retval(0);
89 async_manager();
[38542dc]90
91 /* Not reached */
[5dd4f77a]92 return 0;
93}
94
95/**
96 * @}
[38542dc]97 */
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