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codeql-action/node_modules/bottleneck/src/RedisConnection.coffee
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parser = require "./parser" | |
Events = require "./Events" | |
Scripts = require "./Scripts" | |
class RedisConnection | |
datastore: "redis" | |
defaults: | |
Redis: null | |
clientOptions: {} | |
client: null | |
Promise: Promise | |
Events: null | |
constructor: (options={}) -> | |
parser.load options, @defaults, @ | |
@Redis ?= eval("require")("redis") # Obfuscated or else Webpack/Angular will try to inline the optional redis module. To override this behavior: pass the redis module to Bottleneck as the 'Redis' option. | |
@Events ?= new Events @ | |
@terminated = false | |
@client ?= @Redis.createClient @clientOptions | |
@subscriber = @client.duplicate() | |
@limiters = {} | |
@shas = {} | |
@ready = @Promise.all [@_setup(@client, false), @_setup(@subscriber, true)] | |
.then => @_loadScripts() | |
.then => { @client, @subscriber } | |
_setup: (client, sub) -> | |
client.setMaxListeners 0 | |
new @Promise (resolve, reject) => | |
client.on "error", (e) => @Events.trigger "error", e | |
if sub | |
client.on "message", (channel, message) => | |
@limiters[channel]?._store.onMessage channel, message | |
if client.ready then resolve() | |
else client.once "ready", resolve | |
_loadScript: (name) -> | |
new @Promise (resolve, reject) => | |
payload = Scripts.payload name | |
@client.multi([["script", "load", payload]]).exec (err, replies) => | |
if err? then return reject err | |
@shas[name] = replies[0] | |
resolve replies[0] | |
_loadScripts: -> @Promise.all(Scripts.names.map (k) => @_loadScript k) | |
__runCommand__: (cmd) -> | |
await @ready | |
new @Promise (resolve, reject) => | |
@client.multi([cmd]).exec_atomic (err, replies) -> | |
if err? then reject(err) else resolve(replies[0]) | |
__addLimiter__: (instance) -> | |
@Promise.all [instance.channel(), instance.channel_client()].map (channel) => | |
new @Promise (resolve, reject) => | |
handler = (chan) => | |
if chan == channel | |
@subscriber.removeListener "subscribe", handler | |
@limiters[channel] = instance | |
resolve() | |
@subscriber.on "subscribe", handler | |
@subscriber.subscribe channel | |
__removeLimiter__: (instance) -> | |
@Promise.all [instance.channel(), instance.channel_client()].map (channel) => | |
unless @terminated | |
await new @Promise (resolve, reject) => | |
@subscriber.unsubscribe channel, (err, chan) -> | |
if err? then return reject err | |
if chan == channel then return resolve() | |
delete @limiters[channel] | |
__scriptArgs__: (name, id, args, cb) -> | |
keys = Scripts.keys name, id | |
[@shas[name], keys.length].concat keys, args, cb | |
__scriptFn__: (name) -> | |
@client.evalsha.bind(@client) | |
disconnect: (flush=true) -> | |
clearInterval(@limiters[k]._store.heartbeat) for k in Object.keys @limiters | |
@limiters = {} | |
@terminated = true | |
@client.end flush | |
@subscriber.end flush | |
@Promise.resolve() | |
module.exports = RedisConnection |