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"""
Test lldb Python event APIs.
"""
import os, time
import re
import unittest2
import lldb, lldbutil
from lldbtest import *
class EventAPITestCase(TestBase):
mydir = os.path.join("python_api", "event")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
@python_api_test
def test_with_dsym(self):
"""Exercise SBEvent APIs."""
self.buildDsym()
self.do_events()
@python_api_test
def test_with_dwarf(self):
"""Exercise SBEvent APIs."""
self.buildDwarf()
self.do_events()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to of function 'c'.
self.line = line_number('main.c', '// Find the line number of function "c" here.')
def do_events(self):
"""Get the listener associated with the debugger and exercise some event APIs."""
exe = os.path.join(os.getcwd(), "a.out")
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target.IsValid(), VALID_TARGET)
# Now create a breakpoint on main.c by name 'c'.
breakpoint = target.BreakpointCreateByName('c', 'a.out')
#print "breakpoint:", breakpoint
self.assertTrue(breakpoint.IsValid() and
breakpoint.GetNumLocations() == 1,
VALID_BREAKPOINT)
# Now launch the process, and do not stop at entry point.
self.process = target.LaunchProcess([''], [''], os.ctermid(), 0, False)
self.process = target.GetProcess()
self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID)
# Get a handle on the process's broadcaster.
broadcaster = self.process.GetBroadcaster()
self.assertTrue(broadcaster.IsValid(), "Process with valid broadcaster")
# Create an empty event object.
event = lldb.SBEvent()
self.assertFalse(event.IsValid(), "Event should not be valid initially")
# Get the debugger listenr.
listener = self.dbg.GetListener()
# Create MyListeningThread to wait for any kind of event.
import threading
class MyListeningThread(threading.Thread):
def run(self):
print "Running MyListeningThread:", self
count = 0
# Let's only try at most 3 times to retrieve any kind of event.
while not count > 3:
if listener.WaitForEvent(5, event):
print "Got a valid event:", event
print "Event type:", event.GetType()
print "Event broadcaster:", event.GetBroadcaster().GetName()
return
count = count + 1
print "Timeout: listener.WaitForEvent"
return
# Let's start the listening thread before we launch the inferior process.
my_thread = MyListeningThread()
my_thread.start()
# Use Python API to continue the process. The listening thread should be
# able to receive a state changed event.
self.process.Continue()
my_thread.join()
self.assertTrue(event.IsValid())
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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