Hi, I have a problem with the following code: prg = "c:\\path\\to\\some\\program" # for cmd # prg = "/cygdrive/c/path/to/some/program" # for cygwin IO.popen(prg, "r+b") do |pipe| File.open ARGV, 'rb' do |fin| pipe.write fin.read end end On Windows, when running "normal" ruby from a command prompt (Windows' cmd.exe), it blocks on write. I can interrupt it using Ctrl+C, but it never goes through. Doing all sorts of "debug" testing, I found out that it always blocks on the same character if the input data is the same. Different input data (i.e. different input files, whose filenames are given on a command line) gives different results. I am using ruby 1.8.6. What is even more interesting is that on Cygwin this works. I have ruby 1.8.5 there. Also, it is working on other machines. The "other" program itself is working fine - it's a simple echo-clone. Do you have any idea what might be causing this? I thought of a lot of good reasons, but failed to find one that really is the one. At least, do you have any suggestions of what I might try?
on 2007-06-28 14:46