52 lines
1.1 KiB
Ruby
52 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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class ProcessMemoryCache
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module Helper
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def fetch_memory_cache(key, &payload)
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cache = cache_backend.read(key)
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if cache && !stale_cache?(key, cache)
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cache[:data]
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else
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store_cache(key, &payload)
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end
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end
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def invalidate_memory_cache(key)
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touch_cache_timestamp(key)
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end
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private
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def touch_cache_timestamp(key, time = Time.current.to_f)
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shared_backend.write(key, time)
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end
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def stale_cache?(key, cache_info)
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shared_timestamp = shared_backend.read(key)
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return true unless shared_timestamp
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shared_timestamp.to_f > cache_info[:cached_at].to_f
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end
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def store_cache(key)
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data = yield
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time = Time.current.to_f
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cache_backend.write(key, data: data, cached_at: time)
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touch_cache_timestamp(key, time) unless shared_backend.read(key)
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data
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end
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def shared_backend
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Rails.cache
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end
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def cache_backend
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::Gitlab::ProcessMemoryCache.cache_backend
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end
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end
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end
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end
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