access variables inside a block ...

  • Thread starter Karl-Heinz Wild
  • Start date
K

Karl-Heinz Wild

I'm playing with the class TcpServer from the
package ldap-server.

There is an interesting way for me of running a tcp server.

-----------------------------

t = GAME::Server.tcpserver:)port=>1110, :nodelay=>true) do
print "+OK I am a fake POP3 server\r\n"
while line = gets
case line
when /^quit/i
break
else
print "-ERR I don't understand #{line}"
end
end
print "+OK bye\r\n"
end
t.join
end

----------------------------

inside the GAME:Server.tcpserver it looks like

----------------------------

def self.tcpserver(opt, &blk)
server = TCPServer.new(opt[:bindaddr] || "0.0.0.0", opt[:port])
server.listen(opt[:listen]) if opt[:listen]

Thread.new do
while true
begin
session = server.accept
Thread.new(session) do |s|
s.instance_eval(&blk)
end
rescue Interrupt
server.close if server and not server.closed?
break
end
end
end
end

------------------------------

Now, how can I get access to the "session" variables.
I need some information from TCP inside the block.
But I couldn't find out how.

Thanks for reading the mail and maybe an answer :)

regards
Karl-Heinz
 
J

Joel VanderWerf

Karl-Heinz Wild said:
I'm playing with the class TcpServer from the
package ldap-server.

There is an interesting way for me of running a tcp server.

-----------------------------

t = GAME::Server.tcpserver:)port=>1110, :nodelay=>true) do
print "+OK I am a fake POP3 server\r\n"
while line = gets
case line
when /^quit/i
break
else
print "-ERR I don't understand #{line}"
end
end
print "+OK bye\r\n"
end
t.join
end

----------------------------

inside the GAME:Server.tcpserver it looks like

----------------------------

def self.tcpserver(opt, &blk)
server = TCPServer.new(opt[:bindaddr] || "0.0.0.0", opt[:port])
server.listen(opt[:listen]) if opt[:listen]

Thread.new do
while true
begin
session = server.accept
Thread.new(session) do |s|
s.instance_eval(&blk)
end
rescue Interrupt
server.close if server and not server.closed?
break
end
end
end
end

------------------------------

Now, how can I get access to the "session" variables.
I need some information from TCP inside the block.
But I couldn't find out how.

Thanks for reading the mail and maybe an answer :)

regards
Karl-Heinz

t = GAME::Server.tcpserver:)port=>1110, :nodelay=>true) do
session = self
session....
 
K

Karl-Heinz Wild

Karl-Heinz Wild said:
I'm playing with the class TcpServer from the
package ldap-server.

There is an interesting way for me of running a tcp server.

-----------------------------

t = GAME::Server.tcpserver:)port=>1110, :nodelay=>true) do
print "+OK I am a fake POP3 server\r\n"
while line = gets
case line
when /^quit/i
break
else
print "-ERR I don't understand #{line}"
end
end
print "+OK bye\r\n"
end
t.join
end

----------------------------

inside the GAME:Server.tcpserver it looks like

----------------------------

def self.tcpserver(opt, &blk)
server = TCPServer.new(opt[:bindaddr] || "0.0.0.0", opt[:port])
server.listen(opt[:listen]) if opt[:listen]

Thread.new do
while true
begin
session = server.accept
Thread.new(session) do |s|
s.instance_eval(&blk)
end
rescue Interrupt
server.close if server and not server.closed?
break
end
end
end
end

------------------------------

Now, how can I get access to the "session" variables.
I need some information from TCP inside the block.
But I couldn't find out how.

t = GAME::Server.tcpserver:)port=>1110, :nodelay=>true) do
session = self
session....

Great. It works.
Thanks.
 
R

Robert Klemme

Karl-Heinz Wild said:
I'm playing with the class TcpServer from the
package ldap-server.

There is an interesting way for me of running a tcp server.

-----------------------------

t = GAME::Server.tcpserver:)port=>1110, :nodelay=>true) do
print "+OK I am a fake POP3 server\r\n"
while line = gets
case line
when /^quit/i
break
else
print "-ERR I don't understand #{line}"
end
end
print "+OK bye\r\n"
end
t.join
end

----------------------------

inside the GAME:Server.tcpserver it looks like

----------------------------

def self.tcpserver(opt, &blk)
server = TCPServer.new(opt[:bindaddr] || "0.0.0.0", opt[:port])
server.listen(opt[:listen]) if opt[:listen]

Thread.new do
while true
begin
session = server.accept
Thread.new(session) do |s|
s.instance_eval(&blk)
end
rescue Interrupt
server.close if server and not server.closed?
break
end
end
end
end

------------------------------

Now, how can I get access to the "session" variables.
I need some information from TCP inside the block.
But I couldn't find out how.

Thanks for reading the mail and maybe an answer :)

regards
Karl-Heinz

I'd prefer to hand over the session to the block as first parameter. That
way you don't hide the self of the block's calling context (it might be
necessary to access that) and you don't loose anything:

def self.tcpserver(opt, &blk)
server = TCPServer.new(opt[:bindaddr] || "0.0.0.0", opt[:port])
server.listen(opt[:listen]) if opt[:listen]

Thread.new do
while true
begin
Thread.new(server.accept, &blk)
rescue Interrupt
server.close if server and not server.closed?
break
end
end
end
end

t = GAME::Server.tcpserver:)port=>1110, :nodelay=>true) do |session|
session.print "+OK I am a fake POP3 server\r\n"
while line = session.gets
case line
when /^quit/i
break
else
session.print "-ERR I don't understand #{line}"
end
end
session.print "+OK bye\r\n"
end
t.join
end

Btw, are you sure you want that t.join there? Looks like it was joining
with its creator thread - doesn't sound like a good idea because typically
the creator joins on all its children.

Kind regards

robert
 

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