Class: Knjappserver::Httpserver

Inherits:
Object
  • Object
show all
Defined in:
lib/include/class_httpserver.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(kas) ⇒ Httpserver

Returns a new instance of Httpserver.



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# File 'lib/include/class_httpserver.rb', line 5

def initialize(kas)
	@kas = kas
	@debug = @kas.config[:debug]
	@mutex_count = Mutex.new
end

Instance Attribute Details

#http_sessions ⇒ Object (readonly)

Returns the value of attribute http_sessions.



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# File 'lib/include/class_httpserver.rb', line 3

def http_sessions
  @http_sessions
end

#kas ⇒ Object (readonly)

Returns the value of attribute kas.



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# File 'lib/include/class_httpserver.rb', line 3

def kas
  @kas
end

#server ⇒ Object (readonly)

Returns the value of attribute server.



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# File 'lib/include/class_httpserver.rb', line 3

def server
  @server
end

#thread_accept ⇒ Object (readonly)

Returns the value of attribute thread_accept.



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# File 'lib/include/class_httpserver.rb', line 3

def thread_accept
  @thread_accept
end

#thread_restart ⇒ Object (readonly)

Returns the value of attribute thread_restart.



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# File 'lib/include/class_httpserver.rb', line 3

def thread_restart
  @thread_restart
end

#working_count ⇒ Object

Returns the value of attribute working_count.



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# File 'lib/include/class_httpserver.rb', line 2

def working_count
  @working_count
end

Instance Method Details

#count_add ⇒ Object 



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# File 'lib/include/class_httpserver.rb', line 112

def count_add
   @mutex_count.synchronize do
     @working_count += 1 if @working_count
   end
end

#count_remove ⇒ Object 



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# File 'lib/include/class_httpserver.rb', line 118

def count_remove
   @mutex_count.synchronize do
     @working_count -= 1 if @working_count
   end
end

#spawn_httpsession(socket) ⇒ Object 



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# File 'lib/include/class_httpserver.rb', line 108

def spawn_httpsession(socket)
   @http_sessions << Knjappserver::Httpsession.new(self, socket)
end

#start ⇒ Object 



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# File 'lib/include/class_httpserver.rb', line 11

def start
   @http_sessions = []
   @working_count = 0
   
   raise "No host was given." if @kas and !@kas.config.has_key?(:host)
   raise "No port was given." if @kas and !@kas.config.has_key?(:port)
	@server = TCPServer.new(@kas.config[:host], @kas.config[:port])
	
	@thread_accept = Thread.new do
     begin
       loop do
         if !@server or @server.closed?
           sleep 1
           next
         end
         
         begin
           self.spawn_httpsession(@server.accept)
           STDOUT.print "Starting new HTTP-request.\n" if @debug
         rescue => e
           if @debug
             STDOUT.puts e.inspect
             STDOUT.puts e.backtrace
             STDOUT.print "\n"
             STDOUT.print "Could not accept HTTP-request - waiting 1 sec and then trying again.\n"
           end
           
           sleep 1
         end
       end
     rescue => e
       STDOUT.print Knj::Errors.error_str(e)
     end
	end
	
	@thread_restart = Thread.new do
     begin
       loop do
         sleep 10
         break if @kas.should_restart and @kas.should_restart_done
         
         if !@kas.should_restart and (!@server or @server.closed?)
           STDOUT.print "Socket does not exist or is closed - restarting HTTP-server!\n"
           @server = TCPServer.new(@kas.config[:host], @kas.config[:port])
           STDOUT.print "Done.\n"
         end
       end
     rescue => e
       if @kas
         @kas.handle_error(e)
       else
         STDOUT.print Knj::Errors.error_str(e)
       end
     end
   end
end

#stop ⇒ Object 



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# File 'lib/include/class_httpserver.rb', line 68

def stop
   begin
     STDOUT.print "Stopping accept-thread.\n" if @debug
     @thread_accept.kill if @thread_accept and @thread_accept.alive?
     @thread_restart.kill if @thread_restart and @thread_restart.alive?
   rescue => e
     STDOUT.print "Could not stop threads.\n" if @debug
     STDOUT.puts e.inspect
     STDOUT.puts e.backtrace
   end
   
   STDOUT.print "Stopping all HTTP sessions.\n" if @debug
   if @http_sessions
     @http_sessions.each do |httpsession|
       httpsession.destruct
     end
   end
   
   begin
     STDOUT.print "Stopping TCPServer.\n" if @debug
     @server.close if @server and !@server.closed?
     STDOUT.print "TCPServer was closed.\n" if @debug
   rescue Timeout::Error
     raise "Could not close TCPserver.\n"
   rescue IOError => e
     if e.message == "closed stream"
       #ignore - it should be closed.
     else
       raise e
     end
   end
   
   @http_sessions = nil
   @thread_accept = nil
   @thread_restart = nil
   @server = nil
   @working_count = nil
   @kas = nil
end