[ruby-core:114882] [Ruby master Misc#19899] Ruby3.3.-preview2: Behaviour changes of Socket.recv when the sever closes the connection

[ruby-core:114882] [Ruby master Misc#19899] Ruby3.3.-preview2: Behaviour changes of Socket.recv when the sever closes the connection

[jbeschi (jacopo beschi) via ruby-core]

Issue #19899 has been reported by jbeschi (jacopo beschi).



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

Misc #19899: Ruby3.3.-preview2: Behaviour changes of Socket.recv when the sever closes the connection

https://bugs.ruby-lang.org/issues/19899



* Author: jbeschi (jacopo beschi)

* Status: Open

* Priority: Normal

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

I noticed that `Socket#recv` now returns `nil` instead of `""` when the server closes the connection, is it expected? If yes, I suggest mentioning it to the [release page](https://www.ruby-lang.org/en/news/2023/09/14/ruby-3-3-0-preview2-released/). 



Example:





``` ruby

# server.rb

require "socket"



port = 3030

server = TCPServer.new("", port)



while(conn = server.accept) #serves forever

  conn.print "hello"

  conn.close

end



# client.rb

require 'socket'



port = 3030

socket = TCPSocket.new("localhost", port)



2.times do

  res = socket.recv(1012)

  puts "received:"

  p res

end

socket.close

```





```

jacopo-37s-mb 3.2.0 ~ ruby client.rb

received:

"hello"

received:

""

jacopo-37s-mb 3.2.0 ~ rbenv local 3.3.0-preview2

jacopo-37s-mb 3.3.0-preview2 ~ ruby client.rb

received:

"hello"

received:

nil

```



Thanks!







-- 

https://bugs.ruby-lang.org/

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[ruby-core:114909] [Ruby master Misc#19899] Ruby3.3.0-preview2: Behaviour changes of Socket.recv when the sever closes the connection

[alanwu (Alan Wu) via ruby-core]

Issue #19899 has been updated by alanwu (Alan Wu).





Looks to be an intentional change from [Bug #19012].

CC @byroot 



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

Misc #19899: Ruby3.3.0-preview2: Behaviour changes of Socket.recv when the sever closes the connection

https://bugs.ruby-lang.org/issues/19899#change-104778



* Author: jbeschi (jacopo beschi)

* Status: Open

* Priority: Normal

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

I noticed that `Socket#recv` now returns `nil` instead of `""` when the server closes the connection, is it expected? If yes, I suggest mentioning it to the [release page](https://www.ruby-lang.org/en/news/2023/09/14/ruby-3-3-0-preview2-released/). 



Example:





``` ruby

# server.rb

require "socket"



port = 3030

server = TCPServer.new("", port)



while(conn = server.accept) #serves forever

  conn.print "hello"

  conn.close

end



# client.rb

require 'socket'



port = 3030

socket = TCPSocket.new("localhost", port)



2.times do

  res = socket.recv(1012)

  puts "received:"

  p res

end

socket.close

```





```

jacopo-37s-mb 3.2.0 ~ ruby client.rb

received:

"hello"

received:

""

jacopo-37s-mb 3.2.0 ~ rbenv local 3.3.0-preview2

jacopo-37s-mb 3.3.0-preview2 ~ ruby client.rb

received:

"hello"

received:

nil

```



Thanks!







-- 

https://bugs.ruby-lang.org/

 ______________________________________________
 ruby-core mailing list -- ruby-core@ml.ruby-lang.org
 To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org
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[ruby-core:114910] [Ruby master Misc#19899] Ruby3.3.0-preview2: Behaviour changes of Socket.recv when the sever closes the connection

[byroot (Jean Boussier) via ruby-core]

Issue #19899 has been updated by byroot (Jean Boussier).





It is intentional yes. I'll add it to NEWS.md.



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

Misc #19899: Ruby3.3.0-preview2: Behaviour changes of Socket.recv when the sever closes the connection

https://bugs.ruby-lang.org/issues/19899#change-104779



* Author: jbeschi (jacopo beschi)

* Status: Open

* Priority: Normal

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

I noticed that `Socket#recv` now returns `nil` instead of `""` when the server closes the connection, is it expected? If yes, I suggest mentioning it to the [release page](https://www.ruby-lang.org/en/news/2023/09/14/ruby-3-3-0-preview2-released/). 



Example:





``` ruby

# server.rb

require "socket"



port = 3030

server = TCPServer.new("", port)



while(conn = server.accept) #serves forever

  conn.print "hello"

  conn.close

end



# client.rb

require 'socket'



port = 3030

socket = TCPSocket.new("localhost", port)



2.times do

  res = socket.recv(1012)

  puts "received:"

  p res

end

socket.close

```





```

jacopo-37s-mb 3.2.0 ~ ruby client.rb

received:

"hello"

received:

""

jacopo-37s-mb 3.2.0 ~ rbenv local 3.3.0-preview2

jacopo-37s-mb 3.3.0-preview2 ~ ruby client.rb

received:

"hello"

received:

nil

```



Thanks!







-- 

https://bugs.ruby-lang.org/

 ______________________________________________
 ruby-core mailing list -- ruby-core@ml.ruby-lang.org
 To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org
 ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/

[ruby-core:114912] [Ruby master Misc#19899] Ruby3.3.0-preview2: Behaviour changes of Socket.recv when the sever closes the connection

[alanwu (Alan Wu) via ruby-core]

Issue #19899 has been updated by alanwu (Alan Wu).



Status changed from Open to Closed



NEWS entry added in commit:2e4e4c82c28. Thanks for the report!



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

Misc #19899: Ruby3.3.0-preview2: Behaviour changes of Socket.recv when the sever closes the connection

https://bugs.ruby-lang.org/issues/19899#change-104781



* Author: jbeschi (jacopo beschi)

* Status: Closed

* Priority: Normal

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

I noticed that `Socket#recv` now returns `nil` instead of `""` when the server closes the connection, is it expected? If yes, I suggest mentioning it to the [release page](https://www.ruby-lang.org/en/news/2023/09/14/ruby-3-3-0-preview2-released/). 



Example:





``` ruby

# server.rb

require "socket"



port = 3030

server = TCPServer.new("", port)



while(conn = server.accept) #serves forever

  conn.print "hello"

  conn.close

end



# client.rb

require 'socket'



port = 3030

socket = TCPSocket.new("localhost", port)



2.times do

  res = socket.recv(1012)

  puts "received:"

  p res

end

socket.close

```





```

jacopo-37s-mb 3.2.0 ~ ruby client.rb

received:

"hello"

received:

""

jacopo-37s-mb 3.2.0 ~ rbenv local 3.3.0-preview2

jacopo-37s-mb 3.3.0-preview2 ~ ruby client.rb

received:

"hello"

received:

nil

```



Thanks!







-- 

https://bugs.ruby-lang.org/

 ______________________________________________
 ruby-core mailing list -- ruby-core@ml.ruby-lang.org
 To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org
 ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/