This is the mail archive of the
cygwin
mailing list for the Cygwin project.
Re: [Spam?]Re: problem concating (>>) to a large file
Eric Blake <ebb9 <at> byu.net> writes:
> Somehow, when the file size is huge, cygwin is not properly propogating that
an
> O_APPEND bit (0x9 in the flags printed from F_GETFL) means that the initial
> offset of fd 1 is the end of the file. (And it would be nice if strace would
> show the initial lseek offset of all inherited fd's when spawning a process).
Actually, there is another cygwin bug. POSIX requires that this assertion
succeed:
assert (0 == lseek (open("existing", O_WRONLY | O_APPEND), 0, SEEK_CUR));
which is currently not the case on small files. The file position is only
moved as part of the subsequent write()s.
--
Eric Blake
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/