我只需要做类似的事情,这就是我想出的。@Michael Witrant 的回答让我开始了,但我改变了一些东西,比如使用 Process.spawn 而不是 fork (更新更好)。
# start spawns a process and returns the pid of the process
def start(exe)
puts "Starting #{exe}"
pid = spawn(exe)
# need to detach to avoid daemon processes: http://www.ruby-doc.org/core-2.1.3/Process.html#method-c-detach
Process.detach(pid)
return pid
end
# This will kill off all the programs we started
def killall(pids)
pids.each do |pid|
puts "Killing #{pid}"
# kill it (other signals than TERM may be used, depending on the program you want
# to kill. The signal KILL will always work but the process won't be allowed
# to cleanup anything)
begin
Process.kill "TERM", pid
# you have to wait for its termination, otherwise it will become a zombie process
# (or you can use Process.detach)
Process.wait pid
rescue => ex
puts "ERROR: Couldn't kill #{pid}. #{ex.class}=#{ex.message}"
end
end
end
# Now we can start processes and keep the pids for killing them later
pids = []
pids << start('./someprogram')
# Do whatever you want here, run your tests, etc.
# When you're done, be sure to kill of the processes you spawned
killall(pids)
这就是她写的所有内容,试一试,让我知道它是如何工作的。