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Date: Fri, 15 Sep 2000 16:58:22 +0400
From: Egor Duda <deo AT logos-m DOT ru>
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Reply-To: Egor Duda <cygwin-developers AT sourceware DOT cygnus DOT com>
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Message-ID: <18275375909.20000915165822@logos-m.ru>
To: cygwin-developers AT sourceware DOT cygnus DOT com
Subject: EINTR after SIGSTOP/SIGCONT
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Hi!

  this program:

===================================================================
#include <errno.h>
#include <stdio.h>
#include <signal.h>

int main ( int argc, char** argv )
{
  char buf[10];
  int pid;
  int a[2];
  int rc;

  pipe ( a );
  pid = fork ();
  if ( pid == 0 )
    {
      rc = read ( a[0], buf, 1 );
      if ( rc < 0 ) perror ( "error reading from pipe" );
    }
  else  
    {
      kill ( pid, SIGSTOP );
      sleep(1);
      kill ( pid, SIGCONT );
      sleep(1);
      write ( a[1], buf, 1 );
      waitpid ( pid );
    }
}
===================================================================

prints `error reading from pipe: Interrupted system call' on cygwin
and  none  on linux. is it intended behavior, or cygwin shouldn't post
"signal_arrived" event on SIGCONT signal?

Egor.            mailto:deo AT logos-m DOT ru ICQ 5165414 FidoNet 2:5020/496.19