102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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*/
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#include "proc.h"
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#include "procfs.h"
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#include <rthw.h>
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#include <rtdbg.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <dfs_dentry.h>
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#include <dfs_mnt.h>
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const char *mnt_flag(int flag)
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{
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/*if (flag & MNT_READONLY)
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{
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return "ro";
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}*/
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return "rw";
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}
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static struct dfs_mnt* mnt_show(struct dfs_mnt *mnt, void *parameter)
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{
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struct dfs_seq_file *seq = (struct dfs_seq_file *)parameter;
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if (mnt)
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{
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if (mnt->dev_id)
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{
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dfs_seq_printf(seq, "%s %s %s %s 0 0\n", mnt->dev_id->parent.name, mnt->fullpath,
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mnt->fs_ops->name, mnt_flag(mnt->flags));
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}
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else
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{
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dfs_seq_printf(seq, "%s %s %s %s 0 0\n", mnt->fs_ops->name, mnt->fullpath,
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mnt->fs_ops->name, mnt_flag(mnt->flags));
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}
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}
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return RT_NULL;
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}
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static void *seq_start(struct dfs_seq_file *seq, off_t *index)
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{
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off_t i = *index; // seq->index
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return NULL + (i == 0);
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}
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static void seq_stop(struct dfs_seq_file *seq, void *data)
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{
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}
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static void *seq_next(struct dfs_seq_file *seq, void *data, off_t *index)
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{
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/* data: The return value of the start or next*/
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off_t i = *index + 1; // seq->index
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*index = i;
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return NULL;
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}
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static int seq_show(struct dfs_seq_file *seq, void *data)
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{
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/* data: The return value of the start or next*/
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dfs_mnt_foreach(mnt_show, seq);
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return 0;
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}
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static const struct dfs_seq_ops seq_ops = {
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.start = seq_start,
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.stop = seq_stop,
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.next = seq_next,
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.show = seq_show,
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};
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int proc_mounts_init(void)
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{
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struct proc_dentry *dentry = proc_create_data("mounts", 0, NULL, NULL, NULL);
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if (dentry)
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{
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dentry->seq_ops = &seq_ops;
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}
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proc_release(dentry);
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return 0;
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}
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INIT_ENV_EXPORT(proc_mounts_init);
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