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Diffstat (limited to 'ruby_1_8_6/lib/open3.rb')
-rw-r--r-- | ruby_1_8_6/lib/open3.rb | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/ruby_1_8_6/lib/open3.rb b/ruby_1_8_6/lib/open3.rb deleted file mode 100644 index c4dacc9473..0000000000 --- a/ruby_1_8_6/lib/open3.rb +++ /dev/null @@ -1,101 +0,0 @@ -# -# = open3.rb: Popen, but with stderr, too -# -# Author:: Yukihiro Matsumoto -# Documentation:: Konrad Meyer -# -# Open3 gives you access to stdin, stdout, and stderr when running other -# programs. -# - -# -# Open3 grants you access to stdin, stdout, and stderr when running another -# program. Example: -# -# require "open3" -# include Open3 -# -# stdin, stdout, stderr = popen3('nroff -man') -# -# Open3.popen3 can also take a block which will receive stdin, stdout and -# stderr as parameters. This ensures stdin, stdout and stderr are closed -# once the block exits. Example: -# -# require "open3" -# -# Open3.popen3('nroff -man') { |stdin, stdout, stderr| ... } -# - -module Open3 - # - # Open stdin, stdout, and stderr streams and start external executable. - # Non-block form: - # - # require 'open3' - # - # [stdin, stdout, stderr] = Open3.popen3(cmd) - # - # Block form: - # - # require 'open3' - # - # Open3.popen3(cmd) { |stdin, stdout, stderr| ... } - # - # The parameter +cmd+ is passed directly to Kernel#exec. - # - def popen3(*cmd) - pw = IO::pipe # pipe[0] for read, pipe[1] for write - pr = IO::pipe - pe = IO::pipe - - pid = fork{ - # child - fork{ - # grandchild - pw[1].close - STDIN.reopen(pw[0]) - pw[0].close - - pr[0].close - STDOUT.reopen(pr[1]) - pr[1].close - - pe[0].close - STDERR.reopen(pe[1]) - pe[1].close - - exec(*cmd) - } - exit!(0) - } - - pw[0].close - pr[1].close - pe[1].close - Process.waitpid(pid) - pi = [pw[1], pr[0], pe[0]] - pw[1].sync = true - if defined? yield - begin - return yield(*pi) - ensure - pi.each{|p| p.close unless p.closed?} - end - end - pi - end - module_function :popen3 -end - -if $0 == __FILE__ - a = Open3.popen3("nroff -man") - Thread.start do - while line = gets - a[0].print line - end - a[0].close - end - while line = a[1].gets - print ":", line - end -end |