class Rack::Session::Redis
Constants
- DEFAULT_OPTIONS
Attributes
mutex[R]
pool[R]
Public Class Methods
new(app, options = {})
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Calls superclass method
# File lib/rack/session/redis.rb, line 13 def initialize(app, options = {}) super @mutex = Mutex.new @pool = ::Redis::Store::Factory.create @default_options[:redis_server] end
Public Instance Methods
destroy_session(env, session_id, options)
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# File lib/rack/session/redis.rb, line 46 def destroy_session(env, session_id, options) with_lock(env) do @pool.del(session_id) generate_sid unless options[:drop] end end
generate_sid()
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Calls superclass method
# File lib/rack/session/redis.rb, line 20 def generate_sid loop do sid = super break sid unless @pool.get(sid) end end
get_session(env, sid)
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# File lib/rack/session/redis.rb, line 27 def get_session(env, sid) with_lock(env, [nil, {}]) do unless sid and session = @pool.get(sid) sid, session = generate_sid, {} unless /^OK/ =~ @pool.set(sid, session, @default_options) raise "Session collision on '#{sid.inspect}'" end end [sid, session] end end
set_session(env, session_id, new_session, options)
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# File lib/rack/session/redis.rb, line 39 def set_session(env, session_id, new_session, options) with_lock(env, false) do @pool.set session_id, new_session, options session_id end end
with_lock(env, default=nil) { || ... }
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# File lib/rack/session/redis.rb, line 53 def with_lock(env, default=nil) @mutex.lock if env['rack.multithread'] yield rescue Errno::ECONNREFUSED if $VERBOSE warn "#{self} is unable to find Redis server." warn $!.inspect end default ensure @mutex.unlock if @mutex.locked? end