Masahiko Shimoda wrote:
> I have written a client/server program using libc 5.3.12
> on Linux 2.0.33. The server program communicates with
> the client via socket. The server executes a python
> script ( specified by the client ) in the same process,
> and returns the data which have been written to "stdout"
> by the script.
>
> Now I'm in trouble because the script executed by the server
> can't write large data to "stdout".
>
> Then I have written a simple program ( bottom of this message )
> which consists of the part of the server program and a dummy
> function ( read_and_write() ) instead of the function executes
> a python script. In addition, this program writes data to
> a file instead of sending data to a client. And I ran it.
>
> If the size of the file "sample.dat" was 65535 bytes and under,
> the program terminated with no errors. But the size was over
> 65535 bytes, the fwrite() call in the read_and_write() failed
> and "errno" was set to 512.
512 is ERESTARTSYS. This error should never be seen by application
code; libc is supposed to restart the system call.
Try upgrading to a newer version of libc (the 5.3.* versions are
supposedly development versions).
--
Glynn Clements <[EMAIL PROTECTED]>
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