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