47 lines · python
1"""2Test that expr will time out and allow other threads to run if it blocks.3"""4 5import lldb6from lldbsuite.test.decorators import *7from lldbsuite.test.lldbtest import *8from lldbsuite.test import lldbutil9 10 11class ExprDoesntDeadlockTestCase(TestBase):12 @add_test_categories(["basic_process"])13 def test_with_run_command(self):14 """Test that expr will time out and allow other threads to run if it blocks."""15 self.build()16 target = self.createTestTarget()17 18 # Now create a breakpoint at source line before call_me_to_get_lock19 # gets called.20 21 main_file_spec = lldb.SBFileSpec("locking.cpp")22 breakpoint = target.BreakpointCreateBySourceRegex("Break here", main_file_spec)23 if self.TraceOn():24 print("breakpoint:", breakpoint)25 self.assertTrue(26 breakpoint and breakpoint.GetNumLocations() == 1, VALID_BREAKPOINT27 )28 29 # Now launch the process, and do not stop at entry point.30 process = target.LaunchSimple(None, None, self.get_process_working_directory())31 self.assertTrue(process, PROCESS_IS_VALID)32 33 # Frame #0 should be on self.line1 and the break condition should hold.34 from lldbsuite.test.lldbutil import get_stopped_thread35 36 thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint)37 self.assertTrue(38 thread.IsValid(),39 "There should be a thread stopped due to breakpoint condition",40 )41 42 frame0 = thread.GetFrameAtIndex(0)43 44 var = frame0.EvaluateExpression("call_me_to_get_lock(get_int())")45 self.assertTrue(var.IsValid())46 self.assertEqual(var.GetValueAsSigned(0), 567)47