read() returns errno == 1 ("Resource temporarily unavailable")

Christopher Faylor
Fri Jan 19 09:10:00 GMT 2001

On Fri, Jan 19, 2001 at 05:25:02PM +0100, Jesper Eskilson wrote:
>I'm having trouble reading from a file using read(). The symptoms are that
>read() fails setting errno to 11 (EAGAIN). This should AFAIK only be
>possible on O_NONBLOCK filedescriptors, whereas the file in question is not
>opened in non-blocking mode.
>Any hints? I saw a fix in Cygwin.dll 1.1.7 which looked related, but the
>bug(?) is still there.

errno == 1 is not EAGAIN.  I assume that you mean errno == 11.

Looking at the code for _read, the only time this should be returned is if
you are using a non-blocking read.


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