favetelinguis
Making a ssl socket smart about terminating char in messages
I have an ssl socket which receives messages in JSON format. Right now im using Erlang ssl to setup the connection. In my implementation handle_info is called when some data with a fixed size is available. However the JSON messages can be large so that handle_info is called multiple times with only parts of the message. I then do:
String.ends_with?(new_msg, "\n")
to put together whole messages.
This feels very slow, what I would like is to move this logic down and only have handle_info called when a complete message is available on the socket, that is when a message terminated with \n has arrived.
Is there any support for this in Erlang/Elixir?
Marked As Solved
voltone
For stream-based sockets, including ssl, Erlang can do the buffering for you for a number of packet formats, including line protocols. The mode is controlled through the packet option: http://erlang.org/doc/man/inet.html#setopts-2.
So, to get messages from a TLS socket delivered at line break boundaries:
:ssl.connect('example.net', 443, packet: :line)
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
We build reliable cloud platforms for business-critical systems.
Categories:
Sub Categories:
Forums
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Practical resources that improve the lives of professional developers.
Producing high quality Elixir screencasts since 2017.
Enabling companies to succeed by building software people love.
Courses that'll move you from confusion to "Aha, now I get it!"