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35 lines
1.1 KiB
Markdown
35 lines
1.1 KiB
Markdown
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## **rtthread** – 系统相关函数
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**rtthread** 模块提供了与 RT-Thread 操作系统相关的功能，如查看栈使用情况等。
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### 函数
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#### rtthread.current_tid()
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返回当前线程的 id 。
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#### rtthread.is_preempt_thread()
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返回是否是可抢占线程。
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#### rtthread.stacks_analyze()
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返回当前系统线程和栈使用信息。
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### 示例
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```
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>>> import rtthread
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>>>
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>>> rtthread.is_preempt_thread() # determine if code is running in a preemptible thread
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True
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>>> rtthread.current_tid() # current thread id
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268464956
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>>> rtthread.stacks_analyze() # show thread information
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thread pri status sp stack size max used left tick error
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---------- --- ------- ---------- ---------- ------ ---------- ---
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elog_async 31 suspend 0x000000a8 0x00000400 26% 0x00000003 000
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tshell 20 ready 0x00000260 0x00001000 39% 0x00000003 000
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tidle 31 ready 0x00000070 0x00000100 51% 0x0000000f 000
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SysMonitor 30 suspend 0x000000a4 0x00000200 32% 0x00000005 000
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timer 4 suspend 0x00000080 0x00000200 25% 0x00000009 000
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>>>
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```
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