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Re: [libmicrohttpd] Double regarding suspended connection and pthread_ex


From: silvioprog
Subject: Re: [libmicrohttpd] Double regarding suspended connection and pthread_exit
Date: Mon, 16 Mar 2020 21:39:40 -0300

Complementing, I have done some tests resuming at "position 1" and the server doesn't lock. Should I use at that point?¬†ūü§Ē

(the MHD_resume_connection() inside ahc() in previous example was a typo)

On Mon, Mar 16, 2020 at 9:27 PM silvioprog <address@hidden> wrote:
The CTRL-C / SIGTERM will be required by the application, so after this advice, I'm going to use a list with mutex and join (or cancel) the active threads before shutting down the server.

Supposing this new design, what is the best point to call the "resume" function? For example:

static void *thread_cb(void *cls) {
  /* this is inside new thread */
  struct req *r = cls;
  // MHD_resume_connection(r->con); // position 1
  r->cb(); // possible long time processing data
  MHD_resume_connection(r->con); // position 2
  return NULL;
}

int ahc(...) {
  ...
  MHD_suspend_connection(r->con);
  ret = pthread_create(&thread, NULL, thread_cb, r);

  return ret;
}
 
--
Silvio Clécio

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