Mem

KV cache with TTL, Replacement and Persistence support

Usage

1. define your cache module

    defmodule Cache do
      use Mem,
        worker_number:      2,       # (optional, default: 2) how many processes in worker pool
        default_ttl:        300,     # (optional, default: nil) default expire seconds for set/2
   
        maxmemory_size:     "1000M", # (optional, default: nil) max memory used, support such format: [1000, "10k", "1GB", "1000 K"]
        maxmemory_strategy: :lru,    # ([:lru, :ttl, :fifo]) strategy for cleaning memory
        persistence:        false    # (optional, default: false) whether enable persistence
   
    end

2. add this module to supervisor

    defmodule MyApp.Supervisor do
      use Supervisor
   
      def start_link do
        Supervisor.start_link(__MODULE__, [])
      end
   
      def init([]) do
        [ Cache.child_spec,
        ] |> supervise(strategy: :one_for_one)
      end
   
    end

3. just use it like redis

    Cache.set(:a, 1)
    Cache.inc(:a, 2)
    Cache.set(:b, 2, 200)
    Cache.get(:a)
    Cache.expire(:a, 200)
    Cache.ttl(:a)
    Cache.del(:b)
    Cache.flush
   
    Cache.hset(:c, :a, 2)
    Cache.hget(:c, :a)
   
    Cache.memory_used()

Thanks

• redink