def maybeCallProcessEnded(self):
if self.closedNotifies == 3 and self.lostProcess:
win32file.CloseHandle(self.hProcess)
win32file.CloseHandle(self.hThread)
self.hProcess = None
self.hThread = None
BaseProcess.maybeCallProcessEnded(self)
def test_callProcessExitedMissing(self):
"""
L{BaseProcess._callProcessExited} emits a L{DeprecationWarning} if the
object referred to by its C{proto} attribute has no C{processExited}
method.
"""
class FakeProto:
pass
reason = object()
process = BaseProcess(FakeProto())
self.addCleanup(setWarningMethod, getWarningMethod())
warnings = []
def collect(message, category, stacklevel):
warnings.append((message, category, stacklevel))
setWarningMethod(collect)
process._callProcessExited(reason)
[(message, category, stacklevel)] = warnings
self.assertEqual(
message,
"Since Twisted 8.2, IProcessProtocol.processExited is required. "
"%s.%s must implement it." % (
FakeProto.__module__, FakeProto.__name__))
self.assertIdentical(category, DeprecationWarning)
# The stacklevel doesn't really make sense for this kind of
# deprecation. Requiring it to be 0 will at least avoid pointing to
# any part of Twisted or a random part of the application's code, which
# I think would be more misleading than having it point inside the
# warning system itself. -exarkun
self.assertEqual(stacklevel, 0)
def maybeCallProcessEnded(self):
if self.closedNotifies == 3 and self.lostProcess:
win32file.CloseHandle(self.hProcess)
win32file.CloseHandle(self.hThread)
self.hProcess = None
self.hThread = None
BaseProcess.maybeCallProcessEnded(self)
def test_callProcessExitedMissing(self):
"""
L{BaseProcess._callProcessExited} emits a L{DeprecationWarning} if the
object referred to by its C{proto} attribute has no C{processExited}
method.
"""
class FakeProto:
pass
reason = object()
process = BaseProcess(FakeProto())
self.addCleanup(setWarningMethod, getWarningMethod())
warnings = []
def collect(message, category, stacklevel):
warnings.append((message, category, stacklevel))
setWarningMethod(collect)
process._callProcessExited(reason)
[(message, category, stacklevel)] = warnings
self.assertEqual(
message,
"Since Twisted 8.2, IProcessProtocol.processExited is required. "
"%s.%s must implement it." %
(FakeProto.__module__, FakeProto.__name__))
self.assertIdentical(category, DeprecationWarning)
# The stacklevel doesn't really make sense for this kind of
# deprecation. Requiring it to be 0 will at least avoid pointing to
# any part of Twisted or a random part of the application's code, which
# I think would be more misleading than having it point inside the
# warning system itself. -exarkun
self.assertEqual(stacklevel, 0)
def test_callProcessExited(self):
"""
L{BaseProcess._callProcessExited} calls the C{processExited} method of
its C{proto} attribute and passes it a L{Failure} wrapping the given
exception.
"""
class FakeProto:
reason = None
def processExited(self, reason):
self.reason = reason
reason = RuntimeError("fake reason")
process = BaseProcess(FakeProto())
process._callProcessExited(reason)
process.proto.reason.trap(RuntimeError)
self.assertIdentical(reason, process.proto.reason.value)
def test_callProcessExited(self):
"""
L{BaseProcess._callProcessExited} calls the C{processExited} method of
its C{proto} attribute and passes it a L{Failure} wrapping the given
exception.
"""
class FakeProto:
reason = None
def processExited(self, reason):
self.reason = reason
reason = RuntimeError("fake reason")
process = BaseProcess(FakeProto())
process._callProcessExited(reason)
process.proto.reason.trap(RuntimeError)
self.assertIdentical(reason, process.proto.reason.value)
def __init__(self, reactor, protocol, command, args, environment, path):
_pollingfile._PollingTimer.__init__(self, reactor)
BaseProcess.__init__(self, protocol)
# security attributes for pipes
sAttrs = win32security.SECURITY_ATTRIBUTES()
sAttrs.bInheritHandle = 1
# create the pipes which will connect to the secondary process
self.hStdoutR, hStdoutW = win32pipe.CreatePipe(sAttrs, 0)
self.hStderrR, hStderrW = win32pipe.CreatePipe(sAttrs, 0)
hStdinR, self.hStdinW = win32pipe.CreatePipe(sAttrs, 0)
win32pipe.SetNamedPipeHandleState(self.hStdinW,
win32pipe.PIPE_NOWAIT,
None,
None)
# set the info structure for the new process.
StartupInfo = win32process.STARTUPINFO()
StartupInfo.hStdOutput = hStdoutW
StartupInfo.hStdError = hStderrW
StartupInfo.hStdInput = hStdinR
StartupInfo.dwFlags = win32process.STARTF_USESTDHANDLES
# Create new handles whose inheritance property is false
currentPid = win32api.GetCurrentProcess()
tmp = win32api.DuplicateHandle(currentPid, self.hStdoutR, currentPid, 0, 0,
win32con.DUPLICATE_SAME_ACCESS)
win32file.CloseHandle(self.hStdoutR)
self.hStdoutR = tmp
tmp = win32api.DuplicateHandle(currentPid, self.hStderrR, currentPid, 0, 0,
win32con.DUPLICATE_SAME_ACCESS)
win32file.CloseHandle(self.hStderrR)
self.hStderrR = tmp
tmp = win32api.DuplicateHandle(currentPid, self.hStdinW, currentPid, 0, 0,
win32con.DUPLICATE_SAME_ACCESS)
win32file.CloseHandle(self.hStdinW)
self.hStdinW = tmp
# Add the specified environment to the current environment - this is
# necessary because certain operations are only supported on Windows
# if certain environment variables are present.
env = os.environ.copy()
env.update(environment or {})
cmdline = quoteArguments(args)
# TODO: error detection here.
def doCreate():
self.hProcess, self.hThread, self.pid, dwTid = win32process.CreateProcess(
command, cmdline, None, None, 1, 0, env, path, StartupInfo)
try:
doCreate()
except pywintypes.error, pwte:
if not _invalidWin32App(pwte):
# This behavior isn't _really_ documented, but let's make it
# consistent with the behavior that is documented.
raise OSError(pwte)
else:
# look for a shebang line. Insert the original 'command'
# (actually a script) into the new arguments list.
sheb = _findShebang(command)
if sheb is None:
raise OSError(
"%r is neither a Windows executable, "
"nor a script with a shebang line" % command)
else:
args = list(args)
args.insert(0, command)
cmdline = quoteArguments(args)
origcmd = command
command = sheb
try:
# Let's try again.
doCreate()
except pywintypes.error, pwte2:
# d'oh, failed again!
if _invalidWin32App(pwte2):
raise OSError(
"%r has an invalid shebang line: "
"%r is not a valid executable" % (
origcmd, sheb))
raise OSError(pwte2)
def __init__(self, reactor, protocol, command, args, environment, path):
_pollingfile._PollingTimer.__init__(self, reactor)
BaseProcess.__init__(self, protocol)
# security attributes for pipes
sAttrs = win32security.SECURITY_ATTRIBUTES()
sAttrs.bInheritHandle = 1
# create the pipes which will connect to the secondary process
self.hStdoutR, hStdoutW = win32pipe.CreatePipe(sAttrs, 0)
self.hStderrR, hStderrW = win32pipe.CreatePipe(sAttrs, 0)
hStdinR, self.hStdinW = win32pipe.CreatePipe(sAttrs, 0)
win32pipe.SetNamedPipeHandleState(self.hStdinW, win32pipe.PIPE_NOWAIT, None, None)
# set the info structure for the new process.
StartupInfo = win32process.STARTUPINFO()
StartupInfo.hStdOutput = hStdoutW
StartupInfo.hStdError = hStderrW
StartupInfo.hStdInput = hStdinR
StartupInfo.dwFlags = win32process.STARTF_USESTDHANDLES
# Create new handles whose inheritance property is false
currentPid = win32api.GetCurrentProcess()
tmp = win32api.DuplicateHandle(currentPid, self.hStdoutR, currentPid, 0, 0, win32con.DUPLICATE_SAME_ACCESS)
win32file.CloseHandle(self.hStdoutR)
self.hStdoutR = tmp
tmp = win32api.DuplicateHandle(currentPid, self.hStderrR, currentPid, 0, 0, win32con.DUPLICATE_SAME_ACCESS)
win32file.CloseHandle(self.hStderrR)
self.hStderrR = tmp
tmp = win32api.DuplicateHandle(currentPid, self.hStdinW, currentPid, 0, 0, win32con.DUPLICATE_SAME_ACCESS)
win32file.CloseHandle(self.hStdinW)
self.hStdinW = tmp
# Add the specified environment to the current environment - this is
# necessary because certain operations are only supported on Windows
# if certain environment variables are present.
env = os.environ.copy()
env.update(environment or {})
cmdline = quoteArguments(args)
# TODO: error detection here.
def doCreate():
self.hProcess, self.hThread, self.pid, dwTid = win32process.CreateProcess(
command, cmdline, None, None, 1, 0, env, path, StartupInfo
)
try:
doCreate()
except pywintypes.error, pwte:
if not _invalidWin32App(pwte):
# This behavior isn't _really_ documented, but let's make it
# consistent with the behavior that is documented.
raise OSError(pwte)
else:
# look for a shebang line. Insert the original 'command'
# (actually a script) into the new arguments list.
sheb = _findShebang(command)
if sheb is None:
raise OSError("%r is neither a Windows executable, " "nor a script with a shebang line" % command)
else:
args = list(args)
args.insert(0, command)
cmdline = quoteArguments(args)
origcmd = command
command = sheb
try:
# Let's try again.
doCreate()
except pywintypes.error, pwte2:
# d'oh, failed again!
if _invalidWin32App(pwte2):
raise OSError(
"%r has an invalid shebang line: " "%r is not a valid executable" % (origcmd, sheb)
)
raise OSError(pwte2)
