remove file from memory after expire

[kostya]

for each file add access time, and allow to expire rare-access keys. this is should save process memory.

like this: BakedFileSystem.load("dir", expire_in: 1.hour)

[schovi]

@kostya Is there any native tool for that?

My naive idea is to do it manually like:

def read
  return @string if @string

  @string = ....

  if @expire_in
    spawn do
      sleep @expire_id
      @string = nil
    end
  end

  @string
end

[kostya]

i am using every pattern, https://gist.github.com/kostya/7388768b1363e95852c5367a16b5900f#file-xx-cr-L19

i think you should create one loop for class, like this:

every(10.seconds) do
  @files.each do |file|
    file.expire! if file.expired?
  end
end

[kostya]

hm, btw you can you also https://github.com/kostya/memory_cache, this is actually memory cache with expires, but this is not supported access time right now

[schovi]

I realized there's really no "loading" into memory happening here - the files are already baked into the binary at compile time, so they're sitting in process memory from the start. Expiring them wouldn't actually free up any memory since they're part of the executable itself. Or am I missing something?