EINTR LINUX

EINTR

EINTR

　　linux中函数的返回状态，在不同的函数中意义不同：

1）write

　　表示：由于信号中断，没写成功任何数据。

　　The call was interrupted by a signal before any data
was written.

2）read

　　表示：由于信号中断，没读到任何数据。

　　The call was interrupted by a signal before any data
was read.

3）sem_wait

　　函数调用被信号处理函数中断

　　The call was interrupted by a signal handler.

4）recv

　　由于信号中断返回，没有任何数据可用。

　　function was interrupted by a signal that was caught,
before any data was available.