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"""Test function call thread safety."""
from __future__ import print_function
import os, time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestSafeFuncCalls(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line numbers that we will step to in main:
self.main_source = "main.c"
@skipUnlessDarwin
@add_test_categories(['pyapi'])
def test_with_python_api(self):
"""Test function call thread safety."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
self.main_source_spec = lldb.SBFileSpec (self.main_source)
break1 = target.BreakpointCreateByName ("stopper", 'a.out')
self.assertTrue(break1, VALID_BREAKPOINT)
process = target.LaunchSimple (None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
threads = lldbutil.get_threads_stopped_at_breakpoint (process, break1)
if len(threads) != 1:
self.fail ("Failed to stop at breakpoint 1.")
self.check_number_of_threads(process)
main_thread = lldb.SBThread()
select_thread = lldb.SBThread()
for idx in range (0, process.GetNumThreads()):
t = process.GetThreadAtIndex (idx)
if t.GetName() == "main thread":
main_thread = t
if t.GetName() == "select thread":
select_thread = t
self.assertTrue(main_thread.IsValid() and select_thread.IsValid(), "Got both expected threads")
self.safe_to_call_func_on_main_thread (main_thread)
self.safe_to_call_func_on_select_thread (select_thread)
def check_number_of_threads(self, process):
self.assertTrue(process.GetNumThreads() == 2, "Check that the process has two threads when sitting at the stopper() breakpoint")
def safe_to_call_func_on_main_thread (self, main_thread):
self.assertTrue(main_thread.SafeToCallFunctions() == True, "It is safe to call functions on the main thread")
def safe_to_call_func_on_select_thread (self, select_thread):
self.assertTrue(select_thread.SafeToCallFunctions() == False, "It is not safe to call functions on the select thread")
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