Apr 27, 2025 · Apr 27, 2025
diff --git a/Lib/test/test_fcntl.py b/Lib/test/test_fcntl.py
 """Test program for the fcntl C module.
 """
 import errno
 import multiprocessing
 import platform
 import os
        or platform.system() == "Android",
        "this platform returns EINVAL for F_NOTIFY DN_MULTISHOT")
    def test_fcntl_64_bit(self):
        # Issue#1309352: fcntl shouldn't fail when the third arg fits in a
        # IssueGH-42434: fcntl shouldn't fail when the third arg fits in a
        # C 'long' but not in a C 'int'.
        try:
            cmd = fcntl.F_NOTIFY
            #This flagislarger than 2**31 in 64-bit builds
            #DN_MULTISHOTis>= 2**31 in 64-bit builds
            flags = fcntl.DN_MULTISHOT
        except AttributeError:
            self.skipTest("F_NOTIFY or DN_MULTISHOT unavailable")
        fd = os.open(os.path.dirname(os.path.abspath(TESTFN)), os.O_RDONLY)
        try:
            try:
                fcntl.fcntl(fd, cmd, fcntl.DN_DELETE)
            except OSError as exc:
                if exc.errno == errno.EINVAL:
                    self.skipTest("F_NOTIFY not available by this environment")
            fcntl.fcntl(fd, cmd, flags)
        finally:
            os.close(fd)
Original file line number	Diff line number	Diff line change
		@@ -1,5 +1,6 @@
		"""Test program for the fcntl C module.
		"""
		import errno
		import multiprocessing
		import platform
		import os
Expand DownExpand Up		@@ -135,16 +136,21 @@ def test_fcntl_bad_file_overflow(self):
		or platform.system() == "Android",
		"this platform returns EINVAL for F_NOTIFY DN_MULTISHOT")
		def test_fcntl_64_bit(self):
		# Issue#1309352: fcntl shouldn't fail when the third arg fits in a
		# IssueGH-42434: fcntl shouldn't fail when the third arg fits in a
		# C 'long' but not in a C 'int'.
		try:
		cmd = fcntl.F_NOTIFY
		#This flagislarger than 2**31 in 64-bit builds
		#DN_MULTISHOTis>= 2**31 in 64-bit builds
		flags = fcntl.DN_MULTISHOT
		except AttributeError:
		self.skipTest("F_NOTIFY or DN_MULTISHOT unavailable")
		fd = os.open(os.path.dirname(os.path.abspath(TESTFN)), os.O_RDONLY)
		try:
		try:
		fcntl.fcntl(fd, cmd, fcntl.DN_DELETE)
		except OSError as exc:
		if exc.errno == errno.EINVAL:
		self.skipTest("F_NOTIFY not available by this environment")
		fcntl.fcntl(fd, cmd, flags)
		finally:
		os.close(fd)
Expand Down