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"""
Test number of threads.
"""
from __future__ import print_function
import os
import time
import lldb
from lldbsuite.test.lldbtest import *
import lldbsuite.test.lldbutil as lldbutil
class ThreadExitTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line numbers for our breakpoints.
self.break_1 = line_number('main.cpp', '// Set first breakpoint here')
self.break_2 = line_number('main.cpp', '// Set second breakpoint here')
self.break_3 = line_number('main.cpp', '// Set third breakpoint here')
self.break_4 = line_number('main.cpp', '// Set fourth breakpoint here')
def test(self):
"""Test thread exit handling."""
self.build(dictionary=self.getBuildFlags())
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# This should create a breakpoint with 1 location.
bp1_id = lldbutil.run_break_set_by_file_and_line(
self, "main.cpp", self.break_1, num_expected_locations=1)
bp2_id = lldbutil.run_break_set_by_file_and_line(
self, "main.cpp", self.break_2, num_expected_locations=1)
bp3_id = lldbutil.run_break_set_by_file_and_line(
self, "main.cpp", self.break_3, num_expected_locations=1)
bp4_id = lldbutil.run_break_set_by_file_and_line(
self, "main.cpp", self.break_4, num_expected_locations=1)
# The breakpoint list should show 1 locations.
self.expect(
"breakpoint list -f",
"Breakpoint location shown correctly",
substrs=[
"1: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" %
self.break_1,
"2: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" %
self.break_2,
"3: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" %
self.break_3,
"4: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" %
self.break_4])
# Run the program.
self.runCmd("run", RUN_SUCCEEDED)
# Get the target process
target = self.dbg.GetSelectedTarget()
process = target.GetProcess()
stopped_thread = lldbutil.get_one_thread_stopped_at_breakpoint_id(
process, bp1_id)
self.assertIsNotNone(stopped_thread,
"Process is not stopped at breakpoint 1")
# Get the number of threads
num_threads = process.GetNumThreads()
self.assertGreaterEqual(
num_threads,
2,
'Number of expected threads and actual threads do not match at breakpoint 1.')
# Run to the second breakpoint
self.runCmd("continue")
stopped_thread = lldbutil.get_one_thread_stopped_at_breakpoint_id(
process, bp2_id)
self.assertIsNotNone(stopped_thread,
"Process is not stopped at breakpoint 2")
# Update the number of threads
new_num_threads = process.GetNumThreads()
self.assertEqual(
new_num_threads,
num_threads + 1,
'Number of expected threads did not increase by 1 at bp 2.')
# Run to the third breakpoint
self.runCmd("continue")
stopped_thread = lldbutil.get_one_thread_stopped_at_breakpoint_id(
process, bp3_id)
self.assertIsNotNone(stopped_thread,
"Process is not stopped at breakpoint 3")
# Update the number of threads
new_num_threads = process.GetNumThreads()
self.assertEqual(
new_num_threads,
num_threads,
'Number of expected threads is not equal to original number of threads at bp 3.')
# Run to the fourth breakpoint
self.runCmd("continue")
stopped_thread = lldbutil.get_one_thread_stopped_at_breakpoint_id(
process, bp4_id)
self.assertIsNotNone(stopped_thread,
"Process is not stopped at breakpoint 4")
# Update the number of threads
new_num_threads = process.GetNumThreads()
self.assertEqual(
new_num_threads,
num_threads - 1,
'Number of expected threads did not decrease by 1 at bp 4.')
# Run to completion
self.runCmd("continue")
# At this point, the inferior process should have exited.
self.assertEqual(process.GetState(), lldb.eStateExited, PROCESS_EXITED)
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