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https://github.com/RT-Thread/rt-thread.git
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67 lines
1.1 KiB
C
67 lines
1.1 KiB
C
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/*
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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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#if defined(RT_USING_SMART)
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#include <lwp.h>
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int proc_self_readlink(struct proc_dentry *dentry, char *buf, int len)
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{
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struct rt_lwp *lwp = RT_NULL;
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lwp = lwp_self();
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if (lwp)
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{
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rt_snprintf(buf, len, "%d", lwp_to_pid(lwp));
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buf[len - 1] = 0;
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return rt_strlen(buf);
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}
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else
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{
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rt_snprintf(buf, len, "null");
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buf[len - 1] = 0;
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return rt_strlen(buf);
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}
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return -1;
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}
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static const struct proc_ops proc_pid_fd_ops = {
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.readlink = proc_self_readlink,
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};
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int proc_self_init(void)
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{
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struct proc_dentry *ent;
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ent = proc_symlink("self", NULL, "NULL");
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if (ent)
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{
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ent->ops = &proc_pid_fd_ops;
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}
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proc_release(ent);
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return 0;
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}
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INIT_ENV_EXPORT(proc_self_init);
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#endif
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