如何在另一个线程中启动和停止单独的线程？
loop_a_stopped = true
loop_a = Thread.new do
loop do
Thread.stop if loop_a_stopped
# Do stuff
sleep 3
end
end
loop_b = Thread.new do
loop do
response = ask("> ")
case response.strip.downcase
when "start"
loop_a_stopped = false
loop_a.run
when "stop"
loop_a_stopped = true
when "exit"
break
end
end
end
loop_a.join
loop_b.join
解决方法
这是您的示例的修复版本：
STDOUT.sync = true
loop_a_stopped = true
loop_a = Thread.new do
loop do
Thread.stop if loop_a_stopped
# Do stuff
sleep(1)
end
end
loop_b = Thread.new do
loop do
print "> "
response = gets
case response.strip.downcase
when "start"
loop_a_stopped = false
loop_a.wakeup
when "stop"
loop_a_stopped = true
when "exit"
# Terminate thread A regardless of state
loop_a.terminate!
# Terminate this thread
Thread.exit
end
end
end
loop_b.join
loop_a.join
线程管理可能有点棘手.停止一个线程不会终止它,只是将它从调度程序中删除,所以你实际上需要使用Thread#terminate来终止它！在它真正完成之前.