| """Test function call thread safety.""" |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import 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 = self.getBuildArtifact("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(), |
| "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") |
