Remove the Cygwin msleep(100) before the generator kills the receiver,

because it caused the testsuite/unsafe-links test to hang.

NEWS

@@ -72,8 +72,6 @@ rsync changes since last release
 
     * Prevent "Connection reset by peer" messages from Cygwin. (Randy O'Meara)
 
-    * Prevent some hangs at the end of a run on Cygwin.  (Anthony Heading)
-
   INTERNAL:
 
     * Many code cleanups and improved internal documentation.  (Martin 

configure.in

@@ -256,15 +256,6 @@ case $host_os in
 	       * ) AC_MSG_RESULT(no);;
 esac
 
-AC_MSG_CHECKING([whether generator should delay before signaling receiver])
-case $host_os in
-	*cygwin* ) AC_MSG_RESULT(yes)
-                   AC_DEFINE(DELAY_BEFORE_SIGNALING_RECEIVER, 1, 
-			    [Define if generator should delay before signaling receiver])
-		   ;;
-	       * ) AC_MSG_RESULT(no);;
-esac
-
 AC_C_BIGENDIAN
 AC_HEADER_DIRENT
 AC_HEADER_TIME

main.c

@@ -462,10 +462,6 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 	io_flush();
 
 	io_set_error_fd(-1);
-#ifdef DELAY_BEFORE_SIGNALING_RECEIVER
-	/* workaround for cygwin hangs; wait to make sure child is ready */
-	msleep(100); 
-#endif
 	kill(pid, SIGUSR2);
 	wait_process(pid, &status);
 	return status;