Function proc_pid

components/dfs/dfs_v2/filesystems/procfs/proc_pid.c:373–433

};

int proc_pid(int pid)
{
    char pid_str[64] = {0};
    struct proc_dentry *dentry;

    rt_snprintf(pid_str, 64, "%d", pid);
    pid_str[63] = 0;

    dentry = proc_mkdir(pid_str, 0);
    if (dentry)
    {
        struct proc_dentry *ent;

        dentry->pid = pid;
        for (int j = 0; j < sizeof(pid_dentry_base) / sizeof(struct pid_dentry); j++)
        {
            if (S_ISDIR(pid_dentry_base[j].mode))
            {
                ent = proc_mkdir_data(pid_dentry_base[j].name, pid_dentry_base[j].mode, dentry,
                                      pid_dentry_base[j].fops, pid_dentry_base[j].data);
            }
            else if (S_ISLNK(pid_dentry_base[j].mode))
            {
                if (pid_dentry_base[j].data == RT_NULL)
                {
                    pid_dentry_base[j].data = "NULL";
                }

                ent = proc_symlink(pid_dentry_base[j].name, dentry, pid_dentry_base[j].data);
            }
            else
            {
                ent = proc_create_data(pid_dentry_base[j].name, pid_dentry_base[j].mode, dentry,
                                       pid_dentry_base[j].fops, pid_dentry_base[j].data);
            }

            if (ent)
            {
                if (pid_dentry_base[j].ops)
                {
                    ent->ops = pid_dentry_base[j].ops;
                }

                if (pid_dentry_base[j].seq_ops)
                {
                    ent->seq_ops = pid_dentry_base[j].seq_ops;
                }

                if (pid_dentry_base[j].single_show)
                {
                    ent->single_show = pid_dentry_base[j].single_show;
                }

                proc_release(ent);
            }
        }
        proc_release(dentry);
    }