Hi I am using the current cygwin version (dll version 1-5-5-1) and see some strange behaviour while using the read/write system calls. In short: I open a file with mode O_RDWR|O_CREAT, write exactly 1MB into it and then after seeking to position 0 read the Megabyte back. Strange things seem to happen: - The File becomes larger during the whole process (up to some hundred bytes) - I get an end of file most of the times though i did not read all the 1MB - sometimes (5% of all runs) i get an EAGAIN error while reading the file
has anybody experienced something similar? I make heavy use of threads writing different files at the same time (but not more than 1 thread per file). I suspect cygwin to write sometimes into the wrong file. I had not been able to reproduce this with a simple test-program, so i do not provide sample code here, but perhaps someone has experienced similar effects? And perhaps someone knows why i am getting EAGAIN-errors on diskfiles (i do not use nonblocking io)? Greetings - Rasmus -- -- 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/
