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3895 :: Nim Interprocess Communication

• SimpleLegend (orginal) [2018-06-07T10:51:07+02:00] view original

  Hi everyone

  I am new to programming in nim and I am trying to implement a login process where the least privilege is being used at all times. A scenario would be something like this

  1. Server hosts a socket
  2. On connect, fork() to spawn a child process

  In parent:

  1. Parent waits for child process to send certain information over
  2. On receiving data, sanitize and check if user/pass is authenticated
  3. Once authenticated, reply to child OK or FAIL

  In child:

  1. Child waits for input from the user
  2. On receiving input, send data to the parent process and wait for reply
  3. On receiving OK/Fail, perform accordingly.

  I have seen that nim usually use threads/channels to communicate but was thinking more on the process level so increase isolation. Thus, I was wondering if I should use the above solution or is there a better alternative to communicate between the process after running fork() using the nim's standard library.

  Cheers and thanks for the help!

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• yglukhov (orginal) [2018-06-08T11:09:56+02:00] view original

  If you know how to do it in C/C++, you should be able to do the same in Nim.

  If you're into async, check out a nice async ipc lib: https://github.com/cheatfate/asynctools

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