Ruby是否具有原子变量,如Java中的AtomicInteger或AtomicBoolean？
解决方法
Here is a gem可能提供您需要的(发现
linked from here).
The code is clean and compact enough to quickly understand(它基本上是一个互斥体,正如其他人所建议的),如果你想编写自己的Mutex包装器,这应该给你一个很好的起点.
require 'atomic'
my_atomic = Atomic.new('')
# set method 1:
my_atomic.update { |v| v + 'hello' }
# set method 2:
begin
my_atomic.try_update { |v| v + 'world' }
rescue Atomic::ConcurrentUpdateError => cue
# deal with it (retry,propagate,etc)
end
# access with:
puts my_atomic.value