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per-proxypair Snowflake ID generation instead of just one for the Broker (#11)

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This commit is contained in:
Serene Han 2016-03-14 22:12:28 -07:00
parent 422717f36f
commit b1e76420bd
5 changed files with 44 additions and 23 deletions
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30
proxy/snowflake.coffee
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@ -84,6 +84,9 @@ class Snowflake
for i in [1..CONNECTIONS_PER_CLIENT]
@makeProxyPair @relayAddr
return if COPY_PASTE_ENABLED
log 'ProxyPair Slots: ' + @proxyPairs.length
log 'Snowflake IDs: ' + (@proxyPairs.map (p) -> p.id).join ' | '
timer = null
# Temporary countdown.
countdown = (msg, sec) =>
@ -99,22 +102,37 @@ class Snowflake
msg = 'polling for client... '
msg += '[retries: ' + @retries + ']' if @retries > 0
@ui.setStatus msg
recv = @broker.getClientOffer()
@retries++
# Pick an available ProxyPair to poll with.
pair = @nextAvailableProxyPair()
if !pair
log 'No more available ProxyPair slots.'
countdown(err, DEFAULT_BROKER_POLL_INTERVAL / 1000)
return
log 'Polling for ' + pair.id
recv = @broker.getClientOffer pair.id
recv.then (desc) =>
offer = JSON.parse desc
dbg 'Received:\n\n' + offer.sdp + '\n'
@receiveOffer offer
console.log desc
sdp = new RTCSessionDescription offer
# @receiveOffer offer
if pair.receiveWebRTCOffer sdp
@sendAnswer pair if 'offer' == sdp.type
, (err) ->
countdown(err, DEFAULT_BROKER_POLL_INTERVAL / 1000)
@retries++
findClients()
# Returns the first ProxyPair that's available to connect.
nextAvailableProxyPair: ->
return @proxyPairs.find (pp, i, arr) -> return !pp.active
# Receive an SDP offer from some client assigned by the Broker,
# TODO: remove
receiveOffer: (desc) =>
sdp = new RTCSessionDescription desc
# Use the first proxyPair that's available.
pair = @proxyPairs.find (pp, i, arr) -> return !pp.active
pair = @nextAvailableProxyPair()
if pair.receiveWebRTCOffer sdp
@sendAnswer pair if 'offer' == sdp.type
@ -190,7 +208,7 @@ init = ->
broker = new Broker brokerUrl
snowflake = new Snowflake broker, ui
dbg 'Contacting Broker at ' + broker.url + '\nSnowflake ID: ' + broker.id
dbg 'Contacting Broker at ' + broker.url
log '== snowflake proxy =='
log 'Copy-Paste mode detected.' if COPY_PASTE_ENABLED