IO 函数中 select(2)、poll(2)中（2）什么意思？

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看书里有这种写法，不太清楚什么意思，有知道的吗？

poll

select

意思

写法

5 replies • 2023-06-09 14:57:24 +08:00

peonone

Jun 9, 2023

系统调用的意思，以下摘自 Mac `man man`的输出
```
The sections of the manual are:
1. General Commands Manual
2. System Calls Manual
3. Library Functions Manual
4. Kernel Interfaces Manual
5. File Formats Manual
6. Games Manual
7. Miscellaneous Information Manual
8. System Manager's Manual
9. Kernel Developer's Manual
```