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2625 :: downloadFile in threaded proc: defaultSSLContext GC safe

• hcorion (orginal) [2016-11-17T11:24:39+01:00] view original

  Alright, I've finally figured out async and threads, I just need to figure out how I can run downloadFile in a threaded proc.

  I don't want to change any code in the nim source to make this happen, I've done a lot of browsing and I can't come up with anything that doesn't involve changing the compilers source code. The error:

  'ThreadedDownload' is not GC-safe as it accesses 'defaultSSLContext' which is a global using GC'ed memory
  Run

  The thing is that I most likely will need to use SSL. Even if someone can show me how to create a new SSLContext inside the threaded proc that works I'd be happy.

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• cheatfate (orginal) [2016-11-17T12:50:24+01:00] view original

  hcorion, its a workaround. You need to create context via

  proc newContext*(protVersion = protSSLv23, verifyMode = CVerifyPeer,
                   certFile = "", keyFile = "", cipherList = "ALL"): SSLContext =
  Run

  You can find this function in net.nim [https://github.com/nim-lang/Nim/blob/devel/lib/pure/net.nim#L309].

  Do not store this context in global variable.

  After that you can pass this context as argument to downloadFile.

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