Erlang is a general-purpose, garbage-collected programming language and runtime environment, with built-in support for concurrency, distribution and fault tolerance.
Erlang is a general-purpose functional programming language and runtime environment. It has built-in support for concurrency, distribution and fault tolerance. Erlang is used in several large telecommunication systems from Ericsson. Erlang is open source and available for download on GitHub.
I need a module that can generate keypairs, compute secure hashes and crypt and sign data. Is there any that module? Or maybe there is interface for OpenSSL crypto functions ?
I am working with the Erlang MQTT broker which uses cuttlefish to generate .config files for the application. The values in the config files end up being used in the application, so for example at one point the Opts variable will contain values from…
I followed the Getting Started instructions for Cowboy, and I've got Cowboy running and listening on port 8080, and I got the Hello Erlang! response when I entered http://localhost:8080 in my browser. Now, how do I use Gun to connect to Cowboy?
I…
My CouchDB (production) server is sometimes shut down, without my wanting it to. While inspecting logs I noticed Erlang/CouchDB (one or the other) sends a heart beat, and that heart beat is monitored. When a time-out occurs, the server is brutally…
I have an implementation of a Balanced Search Tree in elixir which serves as a key value store.
I have a method from_list which takes a list of key value tuples and returns a tree with them. Is there a way to use generics to typespec this the way I…
I am implementing a server which accepts many concurrent connections.
I used this structure:
loop(Sock) ->
case gen_tcp:accept(Sock) of
{ok, CSock} ->
fork_handling_process(CSock);
{error, Reason} ->
…
I have a dictionary and want to convert it to a list. Then I would like to sort the resulting list consisting of {Key, Value} pairs from min to max depending on the 2nd element(Value).
Is there a built in sort method for Lists to handle this or how…
Short version: is it safe to use ets:foldl to delete every ETS record as one is iterating through them?
Suppose an ETS table is accumulating information and now it's time to process it all. A record is read from the table, used in some way, then…
I'm using Emacs and trying to get my unit testing work flow as automated as possible. I have it set up so it is working but I have to manually compile my module under test or the module containing the tests before the Erlang Shell recognizes my…
I have a logic module that tells a supervisor to start child processes. I need to store those childrens pid in the logic modules state. But I also need to update a childs pid if the supervisor restarts it.
So I can't use the return value pid from…
I am trying to compile Erlang OTP-R16B03-1 on FreeBSD 10.1 OS. When i run the ./configure command the output is
odbc : ODBC library - header check failed
I have tried installing unixODBC, iODBC. Also /usr/ports/databases/unixODBC exists.…
Would like to analyze a stream of events, sharing certain characteristics (s.a. a common source), and within a given time-window, ultimately to correlate those multiple events and draw some inference from same, and finally launch some action.
My…
Say I have a simple python script which executes an elixir/erlang script using the subprocess module.
Say the OS PID of the python script is P1 and that of the spawned elixir/erlang script running is P2.
I want to know if communication between P1…
So I know that the basic Hello World Program (as in the one to output a string not the one designed for Erlang learning with spawn and other stuff) is as follows
-module(hello).
-export([start/0]).
start() ->
io:format("Hello, World!").
Then I…
