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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#include "proc.h"
#include "procfs.h"
#include <rthw.h>
#include <rtdbg.h>
#include <fcntl.h>
#include <errno.h>
#include <dfs_dentry.h>
static void *seq_start(struct dfs_seq_file *seq, off_t *index)
{
off_t i = *index; // seq->index
return NULL + (i == 0);
}
static void seq_stop(struct dfs_seq_file *seq, void *data)
{
}
static void *seq_next(struct dfs_seq_file *seq, void *data, off_t *index)
{
/* data: The return value of the start or next*/
off_t i = *index + 1; // seq->index
*index = i;
return NULL;
}
static int seq_show(struct dfs_seq_file *seq, void *data)
{
/* data: The return value of the start or next*/
dfs_seq_puts(seq, "rt_weak const struct dfs_seq_ops *cpuinfo_get_seq_ops(void)\n--need your own function--\n");
return 0;
}
static const struct dfs_seq_ops seq_ops = {
.start = seq_start,
.stop = seq_stop,
.next = seq_next,
.show = seq_show,
};
rt_weak const struct dfs_seq_ops *cpuinfo_get_seq_ops(void)
{
return &seq_ops;
}
static int proc_open(struct dfs_file *file)
{
return dfs_seq_open(file, cpuinfo_get_seq_ops());
}
static int proc_close(struct dfs_file *file)
{
return dfs_seq_release(file);
}
static const struct dfs_file_ops file_ops = {
.open = proc_open,
.read = dfs_seq_read,
.lseek = dfs_seq_lseek,
.close = proc_close,
};
int proc_cpuinfo_init(void)
{
struct proc_dentry *dentry = proc_create_data("cpuinfo", 0, NULL, &file_ops, NULL);
proc_release(dentry);
return 0;
}
INIT_ENV_EXPORT(proc_cpuinfo_init);
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