Module: ActiveRecord::ConnectionAdapters::QueryCache::ConnectionPoolConfiguration

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 131

def checkout_and_verify(connection)
  super
  connection.query_cache ||= query_cache
  connection
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 181

def clear_query_cache
  if @pinned_connection
    # With transactional fixtures, and especially systems test
    # another thread may use the same connection, but with a different
    # query cache. So we must clear them all.
    @query_cache_version.increment
  end
  query_cache.clear
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 177

def dirties_query_cache
  query_cache.dirties
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 138

def disable_query_cache(dirties: true)
  cache = query_cache
  old_enabled, cache.enabled, old_dirties, cache.dirties = cache.enabled, false, cache.dirties, dirties
  begin
    yield
  ensure
    cache.enabled, cache.dirties = old_enabled, old_dirties
  end
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 163

def disable_query_cache!
  query_cache.enabled = false
  query_cache.dirties = true
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 148

def enable_query_cache
  cache = query_cache
  old_enabled, cache.enabled, old_dirties, cache.dirties = cache.enabled, true, cache.dirties, true
  begin
    yield
  ensure
    cache.enabled, cache.dirties = old_enabled, old_dirties
  end
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 158

def enable_query_cache!
  query_cache.enabled = true
  query_cache.dirties = true
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 117

def initialize(...)
  super
  @query_cache_version = Concurrent::AtomicFixnum.new
  @query_cache_max_size = \
    case query_cache = db_config&.query_cache
    when 0, false
      nil
    when Integer
      query_cache
    when nil
      DEFAULT_SIZE
    end
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 199

def prepare_query_cache(cache) # :nodoc:
  cache.enabled = QueryCache.enabled_by_default && db_config&.query_cache != false
  cache.dirties = true
  cache.clear
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 191

def query_cache
  ConnectionPool.used_pools!.query_cache_for(self)
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 173

def query_cache_enabled
  query_cache.enabled
end

# File 'activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb', line 168

def reset_query_cache! # :nodoc:
  prepare_query_cache(query_cache)
  clear_query_cache
end