[RFA] Tweak for pthreads.exp testcase (resend)

[Michael Snyder <msnyder@cygnus.com>]

OK, let's try again, this time with the actual patch instead of the file.

If the "Stop with ^C" test fails, then all subsequent tests in this
script will time out.  Rather than wait for that to happen, detect
the failure and terminate the test.

2001-06-04  Michael Snyder  <msnyder@redhat.com>

	* gdb.threads/pthreads.exp (check_control_c): Return 0 for success,
	non-zero if control_c fails.  Terminate the test on failure, 
	rather than wait for 12 more tests to time out.

Index: pthreads.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.threads/pthreads.exp,v
retrieving revision 1.5
diff -c -3 -p -r1.5 pthreads.exp
*** pthreads.exp	2001/05/25 01:10:20	1.5
--- pthreads.exp	2001/06/04 23:04:21
*************** proc check_control_c {} {
*** 259,264 ****
--- 259,265 ----
  	}
  	timeout {
  	    fail "$description (timeout)"
+ 	    return 1;
  	}
      }
      gdb_test "bt" ""
*************** proc check_control_c {} {
*** 267,272 ****
--- 268,274 ----
      if [all_threads_running] then {
  	pass "All threads running after continuing from ^C stop"
      }
+     return 0;
  }
  
  proc check_backtraces {} {
*************** setup_xfail "alpha-*-osf*"
*** 337,343 ****
  if [runto_main] then {
      clear_xfail "alpha-*-osf*"
      if [test_startup] then {
! 	check_control_c
  	check_backtraces
      }
  }
--- 339,348 ----
  if [runto_main] then {
      clear_xfail "alpha-*-osf*"
      if [test_startup] then {
! 	if [check_control_c] then {
! 	    warning "Could not stop child with ^C; skipping rest of tests.\n"
! 	    return;
! 	}
  	check_backtraces
      }
  }