FCGI_FAIL_ACCEPT_ON_INTR

I'm not exactly sure what this setting is supposed to do? My code looks
like this:

listen_socket = FCGX_OpenSocket(":9000", 100);
FCGX_Init();
FCGX_InitRequest(&request, listen_socket, 0 /* FCGI_FAIL_ACCEPT_ON_INTR */);
sig_int_flag = 0;

while ((sig_int_flag == 0) && (FCGX_Accept_r(&request) >= 0)) {
  char *content_type;
  FCGX_FPrintF(request.out, "Content-type: %s\r\n\r\n", content_type);
  /* do other stuff */  
  FCGX_Finish_r(&request);
}
 
/* clean up code starts here */
 ....

I have a signal handler that catches SIGTERM and sets sig_int_flag to 1.
Regardless of whether I use the FCGI_FAIL_ACCEPT_ON_INTR setting or not,
the signal is caught but it never breaks out of the loop and executes
the cleanup code. What I want to do is have the loop exit and run the
cleanup code but I am not sure how to do that with or without the
FCGI_FAIL_ACCEPT_ON_INTR setting.

r
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