| """ |
| Test that expr will time out and allow other threads to run if it blocks. |
| """ |
| |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class ExprDoesntDeadlockTestCase(TestBase): |
| @add_test_categories(["basic_process"]) |
| def test_with_run_command(self): |
| """Test that expr will time out and allow other threads to run if it blocks.""" |
| self.build() |
| target = self.createTestTarget() |
| |
| # Now create a breakpoint at source line before call_me_to_get_lock |
| # gets called. |
| |
| main_file_spec = lldb.SBFileSpec("locking.cpp") |
| breakpoint = target.BreakpointCreateBySourceRegex("Break here", main_file_spec) |
| if self.TraceOn(): |
| print("breakpoint:", breakpoint) |
| self.assertTrue( |
| breakpoint and breakpoint.GetNumLocations() == 1, VALID_BREAKPOINT |
| ) |
| |
| # Now launch the process, and do not stop at entry point. |
| process = target.LaunchSimple(None, None, self.get_process_working_directory()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| |
| # Frame #0 should be on self.line1 and the break condition should hold. |
| from lldbsuite.test.lldbutil import get_stopped_thread |
| |
| thread = get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| self.assertTrue( |
| thread.IsValid(), |
| "There should be a thread stopped due to breakpoint condition", |
| ) |
| |
| frame0 = thread.GetFrameAtIndex(0) |
| |
| var = frame0.EvaluateExpression("call_me_to_get_lock(get_int())") |
| self.assertTrue(var.IsValid()) |
| self.assertEqual(var.GetValueAsSigned(0), 567) |