mirror of
https://github.com/puma/puma.git
synced 2022-11-09 13:48:40 -05:00
399c166516
If you reopen STDOUT with an IO object that is "w+", then later reopen it again as just "w", you get an exception: `reopen': /dev/null can't change access mode from "w+" to "w" (ArgumentError)
25 lines
608 B
Ruby
25 lines
608 B
Ruby
module Process
|
|
|
|
# This overrides the default version because it is broken if it
|
|
# exists.
|
|
|
|
def self.daemon(nochdir=false, noclose=false)
|
|
exit if fork # Parent exits, child continues.
|
|
|
|
Process.setsid # Become session leader.
|
|
|
|
exit if fork # Zap session leader. See [1].
|
|
|
|
Dir.chdir "/" unless nochdir # Release old working directory.
|
|
|
|
if !noclose
|
|
STDIN.reopen File.open("/dev/null", "r")
|
|
|
|
null_out = File.open "/dev/null", "w"
|
|
STDOUT.reopen null_out
|
|
STDERR.reopen null_out
|
|
end
|
|
|
|
0
|
|
end
|
|
end
|