rootfs.c

Go to the documentation of this file.

#include <slibc.h>
#include <sys/types.h>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <fcntl.h>
#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include <stdarg.h>
#include <errno.h>
#include <ctype.h>
#include <libgen.h>
#include <stropts.h>

#include <object.h>
#include <list.h>
#include <vfs.h>
#include <vfs0.h>

#include <rootfs.h>

struct rootfs {
        struct ninfo *root;
};

static struct ninfo *get_ninfo(struct sinfo *this, unsigned long id)
{
        if (id == ROOT_NINFO) {
                struct rootfs *rootfs;
                
                rootfs = this->priv;
                if (!rootfs) {
                        return NULL;
                }

                return rootfs->root;
        }

        return NULL;
}

static void refresh_children(struct sinfo *sinfo, struct ninfo *root)
{
}

static int fill_ninfo(struct sinfo *this,
                        struct ninfo *parent, struct ninfo *ninfo, void *info)
{
        if (!ninfo) {
                return -EINVAL;
        }

        ninfo->size = 0;
        return 0;
}

static int del_ninfo(struct sinfo *this, struct ninfo *node)
{
        return 0;
}

static struct sinfo s_si = {
        .head = LIST_HEAD_INIT(s_si.head),
        .refcnt = 0,

        .get_ninfo = get_ninfo,
        .fill_ninfo = fill_ninfo,
        .del_ninfo = del_ninfo,
        .refresh_children = refresh_children,
};

static void init_folder_schema(struct sinfo *si)
{
        struct rootfs *priv;
        struct ninfo *parent;
        struct ninfo *ninfo;

        priv = si->priv;
        parent = priv->root;

        ninfo = vfs_new_ninfo(parent->si, parent, "dev", NULL);
        if (!ninfo) {
                printf("Failed to create a \"dev\" folder\n");
        }
}

struct sinfo *load_rootfs(void)
{
        struct rootfs *rootfs;

        rootfs = malloc(sizeof(*rootfs));
        if (!rootfs) {
                return NULL;
        }

        rootfs->root = vfs_new_ninfo(&s_si, NULL, NULL, NULL);
        if (!rootfs->root) {
                free(rootfs);
                return NULL;
        }

        rootfs->root->type = NINFO_TYPE_FOLDER;
        rootfs->root->priv = NULL;
        rootfs->root->id = 0;
        s_si.priv = rootfs;

        init_folder_schema(&s_si);
        return &s_si;
}

/* End of a file */