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"""
Test that expr will time out and allow other threads to run if it blocks.
"""
import os, time
import re
import unittest2
import lldb, lldbutil
from lldbtest import *
class ExprDoesntDeadlockTestCase(TestBase):
def getCategories(self):
return ['basic_process']
mydir = os.path.join("functionalities", "expr-doesnt-deadlock")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@dsym_test
def test_with_dsym_and_run_command(self):
"""Test that expr will time out and allow other threads to run if it blocks - with dsym."""
self.buildDsym()
self.expr_doesnt_deadlock()
@dwarf_test
@skipOnLinux # PR-15258: disabled due to assertion failure in ProcessMonitor::GetCrashReasonForSIGSEGV:
def test_with_dwarf_and_run_command(self):
"""Test that expr will time out and allow other threads to run if it blocks."""
self.buildDwarf()
self.expr_doesnt_deadlock()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
def expr_doesnt_deadlock (self):
"""Test that expr will time out and allow other threads to run if it blocks."""
exe = os.path.join(os.getcwd(), "a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Now create a breakpoint at source line before call_me_to_get_lock gets called.
main_file_spec = lldb.SBFileSpec ("locking.c")
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, os.getcwd())
self.assertTrue(process, PROCESS_IS_VALID)
# Frame #0 should be on self.line1 and the break condition should hold.
from 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()")
self.assertTrue (var.IsValid())
self.assertTrue (var.GetValueAsSigned (0) == 567)
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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