Class: Iarm::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/iarm/server.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.start(uri = nil) ⇒ Object 



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# File 'lib/iarm/server.rb', line 127

def self.start(uri=nil)
  DRb.start_service(uri, self.new)
  DRb.thread
end

Instance Method Details

#depart(who, channel = nil) ⇒ Object

nil=depart ALL channels and log out client



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# File 'lib/iarm/server.rb', line 51

def depart(who, channel=nil)  # nil=depart ALL channels and log out client
  @mutex.synchronize do
    (channel.nil? ? @channels_joined[who] : [ channel ]).each do |ch|
      @channels_joined[who].delete(ch)
      if @channel_members[ch].delete(who)
        send_msg(Msg::Part.new(ch, who))
      end
      check_channel_empty(ch)
    end
    kill_client(who) if(channel.nil?)
  end
  
end

#get_topic(channel) ⇒ Object 



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# File 'lib/iarm/server.rb', line 119

def get_topic(channel)
  @topics[channel]
end

#getmsg(who, timeout = 0) ⇒ Object

returns msg or nil if no messages and timed out. also serves as a keep-alive to avoid getting killed by ttl if who=nil then it listens on all channels, but only one client can do this at once if another client is already listening with the same who-id, it has the effect of making them return immediately (before their timeout is up)



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# File 'lib/iarm/server.rb', line 70

def getmsg(who, timeout=0)
  if(@msgs[who].empty? && timeout != 0)
    wait_existing = false
    msg = @mutex.synchronize do
      wait_existing = Iarm::Timer.poke(@listeners[who])
      next_msg(who)
    end
    return msg if(msg)
    
    if(wait_existing)
      Thread.pass while(@mutex.synchronize { @listeners.has_key?(who) })
    end

    #puts "Timer.wait: timeout=#{timeout}"
    Iarm::Timer.wait(timeout) do |mode|
      @mutex.synchronize do
        mode ? @listeners[who] = Thread.current : @listeners.delete(who)
      end
      #puts "IARM getmsg: #{who} #{mode ? 'entering' : 'exiting'} wait with msgcount=#{@msgs[who].length}"
      Iarm::Timer.poke(Thread.current) if mode && @msgs[who].length>0  # don't bother sleeping if we already have a new message waiting
    end
  end
  @mutex.synchronize { next_msg(who) }
end

#getmsgs(who, timeout = 0) ⇒ Object 



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# File 'lib/iarm/server.rb', line 95

def getmsgs(who, timeout=0)
  res = [ getmsg(who, timeout) ]
  while(!res.empty? && (msg = getmsg(who, 0)))
    res << msg
  end
  res
end

#join(who, channel, key = nil) ⇒ Object

returns true if joined, false if denied, and nil if new channel formed



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# File 'lib/iarm/server.rb', line 29

def join(who, channel, key=nil)      # returns true if joined, false if denied, and nil if new channel formed
  retval = nil
  touch_nickname(who)
  @mutex.synchronize do
    if(@channels.has_key?(channel))
      retval = (@channels[channel] == key) 
    else
      @channels[channel] = key
    end

    if(retval != false)  # if retval is true (joined existing) or nil (new channel formed)
      if(!@channel_members[channel].has_key?(who)) # don't re-join them if they've already joined before
        @channel_members[channel][who] = clockval
        @channels_joined[who] << channel
        send_msg(Msg::Join.new(channel, who, @channel_members[channel][who]))
        post_msg(who, @topics[channel]) if @topics.has_key?(channel)
      end
    end
  end
  retval
end

#list(pattern = nil) ⇒ Object 



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# File 'lib/iarm/server.rb', line 17

def list(pattern=nil)
  pattern ? @channels.keys.grep(pattern) : @channels.keys
end

#ping ⇒ Object 



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# File 'lib/iarm/server.rb', line 10

def ping
  'pong'
end

#post(msg) ⇒ Object 



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# File 'lib/iarm/server.rb', line 123

def post(msg)
  @mutex.synchronize { send_msg(msg) } if(msg.kind_of?(Msg))
end

#say(who, channel, data) ⇒ Object 



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# File 'lib/iarm/server.rb', line 103

def say(who, channel, data)
  post(Iarm::Msg.new(channel, who, data))
end

#set_topic(who, channel, data) ⇒ Object 



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# File 'lib/iarm/server.rb', line 107

def set_topic(who, channel, data)
  touch_nickname(who)
  if @channels.has_key?(channel)
    data = Msg::Topic.new(channel, who, data) unless data.kind_of?(Msg::Topic)
    if(@topics[channel] != data)
      @mutex.synchronize { @topics[channel] = data }
      post(data)
      data
    end
  end
end

#ttl(ttl_secs) ⇒ Object 



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# File 'lib/iarm/server.rb', line 13

def ttl(ttl_secs)
  @ttl_secs = ttl_secs
end

#who(channel) ⇒ Object 



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# File 'lib/iarm/server.rb', line 21

def who(channel)
  if(@channels.has_key?(channel))
    @channel_members[channel] #.each {|w,time| post_msg(who, Msg::ChannelMember.new(channel, w, time)) } 
  else
    {}
  end
end