discourse/lib/freedom_patches/pool_drainer.rb
Arthur Neves 439d0d2e37
Check Rails.version instead of ENV
Like that we can have code that works on multiple Rails versions, and we
dont need to mix a new method on Kernel.
Also, this makes easier to have multiple versions.
For instance, before master was 4.2, which is not the case anymore, so
on the code we should check versions and not Environment variables
2015-04-28 22:27:47 -04:00

55 lines
1.1 KiB
Ruby

if Rails.version >= "4.2.0"
class ActiveRecord::ConnectionAdapters::AbstractAdapter
module LastUseExtension
attr_reader :last_use
def initialize(connection, logger = nil, pool = nil)
super
@last_use = false
end
def lease
synchronize do
unless in_use?
@last_use = Time.now
super
end
end
end
end
prepend LastUseExtension
end
end
class ActiveRecord::ConnectionAdapters::ConnectionPool
# drain all idle connections
# if idle_time is specified only connections idle for N seconds will be drained
def drain(idle_time=nil)
synchronize do
@available.clear
@connections.delete_if do |conn|
try_drain?(conn, idle_time)
end
@connections.each do |conn|
@available.add conn if !conn.in_use?
end
end
end
private
def try_drain?(conn, idle_time)
if !conn.in_use?
if !idle_time || conn.last_use < idle_time.seconds.ago
conn.disconnect!
return true
end
end
false
end
end