lldb/test/API/functionalities/avoids-fd-leak/TestFdLeak.py

   1 """
   2 Test whether a process started by lldb has no extra file descriptors open.
   3 """
   4
   5
   6 import lldb
   7 from lldbsuite.test import lldbutil
   8 from lldbsuite.test.lldbtest import *
   9 from lldbsuite.test.decorators import *
  10
  11
  12 class AvoidsFdLeakTestCase(TestBase):
  13     NO_DEBUG_INFO_TESTCASE = True
  14
  15     # The check for descriptor leakage needs to be implemented differently
  16     # here.
  17     @skipIfWindows
  18     @skipIfTargetAndroid()  # Android have some other file descriptors open by the shell
  19     @skipIfDarwinEmbedded  # <rdar://problem/33888742>  # debugserver on ios has an extra fd open on launch
  20     def test_fd_leak_basic(self):
  21         self.do_test([])
  22
  23     # The check for descriptor leakage needs to be implemented differently
  24     # here.
  25     @skipIfWindows
  26     @skipIfTargetAndroid()  # Android have some other file descriptors open by the shell
  27     @skipIfDarwinEmbedded  # <rdar://problem/33888742>  # debugserver on ios has an extra fd open on launch
  28     def test_fd_leak_log(self):
  29         self.do_test(["log enable -f '/dev/null' lldb commands"])
  30
  31     def do_test(self, commands):
  32         self.build()
  33         exe = self.getBuildArtifact("a.out")
  34
  35         for c in commands:
  36             self.runCmd(c)
  37
  38         target = self.dbg.CreateTarget(exe)
  39
  40         process = target.LaunchSimple(None, None, self.get_process_working_directory())
  41         self.assertTrue(process, PROCESS_IS_VALID)
  42
  43         self.assertEqual(
  44             process.GetState(), lldb.eStateExited, "Process should have exited."
  45         )
  46         self.assertEqual(
  47             process.GetExitStatus(),
  48             0,
  49             "Process returned non-zero status. Were incorrect file descriptors passed?",
  50         )
  51
  52     # The check for descriptor leakage needs to be implemented differently
  53     # here.
  54     @skipIfWindows
  55     @skipIfTargetAndroid()  # Android have some other file descriptors open by the shell
  56     @skipIfDarwinEmbedded  # <rdar://problem/33888742>  # debugserver on ios has an extra fd open on launch
  57     def test_fd_leak_multitarget(self):
  58         self.build()
  59         exe = self.getBuildArtifact("a.out")
  60
  61         target = self.dbg.CreateTarget(exe)
  62         breakpoint = target.BreakpointCreateBySourceRegex(
  63             "Set breakpoint here", lldb.SBFileSpec("main.c", False)
  64         )
  65         self.assertTrue(breakpoint, VALID_BREAKPOINT)
  66
  67         process1 = target.LaunchSimple(None, None, self.get_process_working_directory())
  68         self.assertTrue(process1, PROCESS_IS_VALID)
  69         self.assertEqual(
  70             process1.GetState(), lldb.eStateStopped, "Process should have been stopped."
  71         )
  72
  73         target2 = self.dbg.CreateTarget(exe)
  74         process2 = target2.LaunchSimple(
  75             None, None, self.get_process_working_directory()
  76         )
  77         self.assertTrue(process2, PROCESS_IS_VALID)
  78
  79         self.assertEqual(
  80             process2.GetState(), lldb.eStateExited, "Process should have exited."
  81         )
  82         self.assertEqual(
  83             process2.GetExitStatus(),
  84             0,
  85             "Process returned non-zero status. Were incorrect file descriptors passed?",
  86         )