Gets from socket got eof (multithread)

ruby-talk
1

Hi all,

I have a problem here. My program used a structure similar to the following:

@session=TCPSocket.new(mypopserver,110)
while resp=@session.gets do
blah blah
end

It worked perfect in single user mode. While I put the code into a thread, I
encountered problem: a lot of thread got resp=nil, and jumped out of the
while loop.

My question is: I just connected to the socket, and everything seems fine,
why gets return nil? why the socket reaches eof? Please note that in single
user mode it is ok.

Thanks
Shannon

···

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2

@session=TCPSocket.new(mypopserver,110)
while resp=@session.gets do
blah blah
end

It worked perfect in single user mode. While I put the code into a thread, I
encountered problem: a lot of thread got resp=nil, and jumped out of the
while loop.

You’ll have to tell a bit more. how many sockets do you open? and how many
threads? I don’t want to know what Ruby does when those two numbers are
unequal…

Bye,
Kero.

3

Hi,

As usual I need information about your platform, your Ruby version,
and preferably error reproducing script. I couldn’t reproduce similar
error using 1.8.0 2003-03-28.

···

In message “gets from socket got eof (multithread)” on 03/04/02, “Shannon Fang” xrfang@hotmail.com writes:

Hi all,

I have a problem here. My program used a structure similar to the following:

@session=TCPSocket.new(mypopserver,110)
while resp=@session.gets do
blah blah
end

It worked perfect in single user mode. While I put the code into a thread, I
encountered problem: a lot of thread got resp=nil, and jumped out of the
while loop.

My question is: I just connected to the socket, and everything seems fine,
why gets return nil? why the socket reaches eof? Please note that in single
user mode it is ok.

It might caused by your stdio behavior.

						matz.