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"""
Test calling a function that waits a while, and make sure the timeout option to expr works.
"""
from __future__ import print_function
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class ExprCommandWithTimeoutsTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
self.main_source = "wait-a-while.cpp"
self.main_source_spec = lldb.SBFileSpec(self.main_source)
@expectedFlakeyFreeBSD("llvm.org/pr19605")
@expectedFailureAll(
oslist=[
"windows",
"macosx"],
bugnumber="llvm.org/pr21765")
def test(self):
"""Test calling std::String member function."""
self.build()
exe_name = "a.out"
exe = os.path.join(os.getcwd(), exe_name)
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
breakpoint = target.BreakpointCreateBySourceRegex(
'stop here in main.', self.main_source_spec)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
self.runCmd("breakpoint list")
# Launch the process, and do not stop at the entry point.
process = target.LaunchSimple(
None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
# Frame #0 should be on self.step_out_of_malloc.
threads = lldbutil.get_threads_stopped_at_breakpoint(
process, breakpoint)
self.assertTrue(len(threads) == 1)
thread = threads[0]
# First set the timeout too short, and make sure we fail.
options = lldb.SBExpressionOptions()
options.SetTimeoutInMicroSeconds(10)
options.SetUnwindOnError(True)
frame = thread.GetFrameAtIndex(0)
value = frame.EvaluateExpression("wait_a_while(1000000)", options)
self.assertTrue(value.IsValid())
self.assertFalse(value.GetError().Success())
# Now do the same thing with the command line command, and make sure it
# works too.
interp = self.dbg.GetCommandInterpreter()
result = lldb.SBCommandReturnObject()
return_value = interp.HandleCommand(
"expr -t 100 -u true -- wait_a_while(1000000)", result)
self.assertTrue(return_value == lldb.eReturnStatusFailed)
# Okay, now do it again with long enough time outs:
options.SetTimeoutInMicroSeconds(1000000)
value = frame.EvaluateExpression("wait_a_while (1000)", options)
self.assertTrue(value.IsValid())
self.assertTrue(value.GetError().Success())
# Now do the same thingwith the command line command, and make sure it
# works too.
interp = self.dbg.GetCommandInterpreter()
result = lldb.SBCommandReturnObject()
return_value = interp.HandleCommand(
"expr -t 1000000 -u true -- wait_a_while(1000)", result)
self.assertTrue(return_value == lldb.eReturnStatusSuccessFinishResult)
# Finally set the one thread timeout and make sure that doesn't change
# things much:
options.SetTimeoutInMicroSeconds(1000000)
options.SetOneThreadTimeoutInMicroSeconds(500000)
value = frame.EvaluateExpression("wait_a_while (1000)", options)
self.assertTrue(value.IsValid())
self.assertTrue(value.GetError().Success())
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