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"""
Test calling a function that waits a while, and make sure the timeout option to expr works.
"""
import unittest2
import lldb
import lldbutil
from lldbtest import *
class ExprCommandWithTimeoutsTestCase(TestBase):
mydir = os.path.join("expression_command", "timeout")
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
self.main_source = "wait-a-while.c"
self.main_source_spec = lldb.SBFileSpec (self.main_source)
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@dsym_test
def test_with_dsym(self):
"""Test calling std::String member function."""
self.buildDsym()
self.call_function()
@skipIfFreeBSD # llvm.org/pr17233
@dwarf_test
def test_with_dwarf(self):
"""Test calling std::String member function."""
self.buildDwarf()
self.call_function()
def call_function(self):
"""Test calling function with timeout."""
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, os.getcwd())
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(100)
options.SetUnwindOnError(True)
frame = thread.GetFrameAtIndex(0)
value = frame.EvaluateExpression ("wait_a_while (10000)", options)
self.assertTrue (value.IsValid())
self.assertTrue (value.GetError().Success() == False)
# 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(10000)", 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() == True)
# 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)
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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