def _crashHandler(exceptionInfo):
threadId = ctypes.windll.kernel32.GetCurrentThreadId()
# An exception might have been set for this thread.
# Clear it so that it doesn't get raised in this function.
ctypes.pythonapi.PyThreadState_SetAsyncExc(threadId, None)
# Write a minidump.
dumpPath = os.path.abspath(os.path.join(globalVars.appArgs.logFileName, "..", "nvda_crash.dmp"))
try:
with file(dumpPath, "w") as mdf:
mdExc = MINIDUMP_EXCEPTION_INFORMATION(ThreadId=threadId,
ExceptionPointers=exceptionInfo, ClientPointers=False)
if not ctypes.windll.DbgHelp.MiniDumpWriteDump(
ctypes.windll.kernel32.GetCurrentProcess(),
os.getpid(),
msvcrt.get_osfhandle(mdf.fileno()),
0, # MiniDumpNormal
ctypes.byref(mdExc),
None,
None
):
raise ctypes.WinError()
except:
log.critical("NVDA crashed! Error writing minidump", exc_info=True)
else:
log.critical("NVDA crashed! Minidump written to %s" % dumpPath)
log.info("Restarting due to crash")
core.restart()
return 1 # EXCEPTION_EXECUTE_HANDLER
def _crashHandler(exceptionInfo):
threadId = ctypes.windll.kernel32.GetCurrentThreadId()
# An exception might have been set for this thread.
# Clear it so that it doesn't get raised in this function.
ctypes.pythonapi.PyThreadState_SetAsyncExc(threadId, None)
# Write a minidump.
dumpPath = os.path.abspath(os.path.join(globalVars.appArgs.logFileName, "..", "nvda_crash.dmp"))
try:
with file(dumpPath, "w") as mdf:
mdExc = MINIDUMP_EXCEPTION_INFORMATION(ThreadId=threadId,
ExceptionPointers=exceptionInfo, ClientPointers=False)
if not ctypes.windll.DbgHelp.MiniDumpWriteDump(
ctypes.windll.kernel32.GetCurrentProcess(),
os.getpid(),
msvcrt.get_osfhandle(mdf.fileno()),
0, # MiniDumpNormal
ctypes.byref(mdExc),
None,
None
):
raise ctypes.WinError()
except:
log.critical("NVDA crashed! Error writing minidump", exc_info=True)
else:
log.critical("NVDA crashed! Minidump written to %s" % dumpPath)
# Log Python stacks for every thread.
for logThread, logFrame in sys._current_frames().iteritems():
log.info("Python stack for thread %d" % logThread,
stack_info=traceback.extract_stack(logFrame))
log.info("Restarting due to crash")
core.restart()
return 1 # EXCEPTION_EXECUTE_HANDLER
def initialize():
global _remoteLib, _remoteLoader64, localLib, winEventHookID,generateBeep,VBuf_getTextInRange
localLib=cdll.LoadLibrary('lib/nvdaHelperLocal.dll')
for name,func in [
("nvdaController_speakText",nvdaController_speakText),
("nvdaController_cancelSpeech",nvdaController_cancelSpeech),
("nvdaController_brailleMessage",nvdaController_brailleMessage),
("nvdaControllerInternal_inputLangChangeNotify",nvdaControllerInternal_inputLangChangeNotify),
("nvdaControllerInternal_displayModelTextChangeNotify",nvdaControllerInternal_displayModelTextChangeNotify),
("nvdaControllerInternal_logMessage",nvdaControllerInternal_logMessage),
]:
try:
_setDllFuncPointer(localLib,"_%s"%name,func)
except AttributeError:
log.error("nvdaHelperLocal function pointer for %s could not be found, possibly old nvdaHelperLocal dll"%name)
localLib.startServer()
generateBeep=localLib.generateBeep
generateBeep.argtypes=[c_char_p,c_float,c_uint,c_ubyte,c_ubyte]
generateBeep.restype=c_uint
# Handle VBuf_getTextInRange's BSTR out parameter so that the BSTR will be freed automatically.
VBuf_getTextInRange = CFUNCTYPE(c_int, c_int, c_int, c_int, POINTER(BSTR), c_int)(
("VBuf_getTextInRange", localLib),
((1,), (1,), (1,), (2,), (1,)))
#Load nvdaHelperRemote.dll but with an altered search path so it can pick up other dlls in lib
h=windll.kernel32.LoadLibraryExW(os.path.abspath(ur"lib\nvdaHelperRemote.dll"),0,0x8)
if not h:
log.critical("Error loading nvdaHelperRemote.dll: %s" % WinError())
return
_remoteLib=CDLL("nvdaHelperRemote",handle=h)
if _remoteLib.injection_initialize(globalVars.appArgs.secure) == 0:
raise RuntimeError("Error initializing NVDAHelperRemote")
if os.environ.get('PROCESSOR_ARCHITEW6432')=='AMD64':
_remoteLoader64=RemoteLoader64()
winEventHookID=winUser.setWinEventHook(EVENT_TYPEDCHARACTER,EVENT_TYPEDCHARACTER,0,winEventCallback,0,0,0)
def initialize():
global _remoteLib, _remoteLoader64, localLib, generateBeep, VBuf_getTextInRange, lastLanguageID, lastLayoutString
hkl=c_ulong(windll.User32.GetKeyboardLayout(0)).value
lastLanguageID=winUser.LOWORD(hkl)
KL_NAMELENGTH=9
buf=create_unicode_buffer(KL_NAMELENGTH)
res=windll.User32.GetKeyboardLayoutNameW(buf)
if res:
lastLayoutString=buf.value
localLib=cdll.LoadLibrary(os.path.join(versionedLibPath,'nvdaHelperLocal.dll'))
for name,func in [
("nvdaController_speakText",nvdaController_speakText),
("nvdaController_cancelSpeech",nvdaController_cancelSpeech),
("nvdaController_brailleMessage",nvdaController_brailleMessage),
("nvdaControllerInternal_requestRegistration",nvdaControllerInternal_requestRegistration),
("nvdaControllerInternal_inputLangChangeNotify",nvdaControllerInternal_inputLangChangeNotify),
("nvdaControllerInternal_typedCharacterNotify",nvdaControllerInternal_typedCharacterNotify),
("nvdaControllerInternal_displayModelTextChangeNotify",nvdaControllerInternal_displayModelTextChangeNotify),
("nvdaControllerInternal_logMessage",nvdaControllerInternal_logMessage),
("nvdaControllerInternal_inputCompositionUpdate",nvdaControllerInternal_inputCompositionUpdate),
("nvdaControllerInternal_inputCandidateListUpdate",nvdaControllerInternal_inputCandidateListUpdate),
("nvdaControllerInternal_IMEOpenStatusUpdate",nvdaControllerInternal_IMEOpenStatusUpdate),
("nvdaControllerInternal_inputConversionModeUpdate",nvdaControllerInternal_inputConversionModeUpdate),
("nvdaControllerInternal_vbufChangeNotify",nvdaControllerInternal_vbufChangeNotify),
("nvdaControllerInternal_installAddonPackageFromPath",nvdaControllerInternal_installAddonPackageFromPath),
("nvdaControllerInternal_drawFocusRectNotify",nvdaControllerInternal_drawFocusRectNotify),
]:
try:
_setDllFuncPointer(localLib,"_%s"%name,func)
except AttributeError as e:
log.error("nvdaHelperLocal function pointer for %s could not be found, possibly old nvdaHelperLocal dll"%name,exc_info=True)
raise e
localLib.nvdaHelperLocal_initialize()
generateBeep=localLib.generateBeep
generateBeep.argtypes=[c_char_p,c_float,c_int,c_int,c_int]
generateBeep.restype=c_int
# The rest of this function (to do with injection) only applies if NVDA is not running as a Windows store application
# Handle VBuf_getTextInRange's BSTR out parameter so that the BSTR will be freed automatically.
VBuf_getTextInRange = CFUNCTYPE(c_int, c_int, c_int, c_int, POINTER(BSTR), c_int)(
("VBuf_getTextInRange", localLib),
((1,), (1,), (1,), (2,), (1,)))
if config.isAppX:
log.info("Remote injection disabled due to running as a Windows Store Application")
return
#Load nvdaHelperRemote.dll but with an altered search path so it can pick up other dlls in lib
h=windll.kernel32.LoadLibraryExW(os.path.abspath(os.path.join(versionedLibPath,u"nvdaHelperRemote.dll")),0,0x8)
if not h:
log.critical("Error loading nvdaHelperRemote.dll: %s" % WinError())
return
_remoteLib=CDLL("nvdaHelperRemote",handle=h)
if _remoteLib.injection_initialize(globalVars.appArgs.secure) == 0:
raise RuntimeError("Error initializing NVDAHelperRemote")
if not _remoteLib.installIA2Support():
log.error("Error installing IA2 support")
#Manually start the in-process manager thread for this NVDA main thread now, as a slow system can cause this action to confuse WX
_remoteLib.initInprocManagerThreadIfNeeded()
if os.environ.get('PROCESSOR_ARCHITEW6432')=='AMD64':
_remoteLoader64=RemoteLoader64()
def initialize():
global _remoteLib, _remoteLoader64, localLib, generateBeep, VBuf_getTextInRange, lastLanguageID, lastLayoutString
hkl=c_ulong(windll.User32.GetKeyboardLayout(0)).value
lastLanguageID=winUser.LOWORD(hkl)
KL_NAMELENGTH=9
buf=create_unicode_buffer(KL_NAMELENGTH)
res=windll.User32.GetKeyboardLayoutNameW(buf)
if res:
lastLayoutString=buf.value
localLib=cdll.LoadLibrary(os.path.join(versionedLibPath,'nvdaHelperLocal.dll'))
for name,func in [
("nvdaController_speakText",nvdaController_speakText),
("nvdaController_cancelSpeech",nvdaController_cancelSpeech),
("nvdaController_brailleMessage",nvdaController_brailleMessage),
("nvdaControllerInternal_requestRegistration",nvdaControllerInternal_requestRegistration),
("nvdaControllerInternal_inputLangChangeNotify",nvdaControllerInternal_inputLangChangeNotify),
("nvdaControllerInternal_typedCharacterNotify",nvdaControllerInternal_typedCharacterNotify),
("nvdaControllerInternal_displayModelTextChangeNotify",nvdaControllerInternal_displayModelTextChangeNotify),
("nvdaControllerInternal_logMessage",nvdaControllerInternal_logMessage),
("nvdaControllerInternal_inputCompositionUpdate",nvdaControllerInternal_inputCompositionUpdate),
("nvdaControllerInternal_inputCandidateListUpdate",nvdaControllerInternal_inputCandidateListUpdate),
("nvdaControllerInternal_IMEOpenStatusUpdate",nvdaControllerInternal_IMEOpenStatusUpdate),
("nvdaControllerInternal_inputConversionModeUpdate",nvdaControllerInternal_inputConversionModeUpdate),
("nvdaControllerInternal_vbufChangeNotify",nvdaControllerInternal_vbufChangeNotify),
("nvdaControllerInternal_installAddonPackageFromPath",nvdaControllerInternal_installAddonPackageFromPath),
("nvdaControllerInternal_drawFocusRectNotify",nvdaControllerInternal_drawFocusRectNotify),
]:
try:
_setDllFuncPointer(localLib,"_%s"%name,func)
except AttributeError as e:
log.error("nvdaHelperLocal function pointer for %s could not be found, possibly old nvdaHelperLocal dll"%name,exc_info=True)
raise e
localLib.nvdaHelperLocal_initialize()
generateBeep=localLib.generateBeep
generateBeep.argtypes=[c_char_p,c_float,c_int,c_int,c_int]
generateBeep.restype=c_int
# The rest of this function (to do with injection) only applies if NVDA is not running as a Windows store application
# Handle VBuf_getTextInRange's BSTR out parameter so that the BSTR will be freed automatically.
VBuf_getTextInRange = CFUNCTYPE(c_int, c_int, c_int, c_int, POINTER(BSTR), c_int)(
("VBuf_getTextInRange", localLib),
((1,), (1,), (1,), (2,), (1,)))
if config.isAppX:
log.info("Remote injection disabled due to running as a Windows Store Application")
return
#Load nvdaHelperRemote.dll but with an altered search path so it can pick up other dlls in lib
h=windll.kernel32.LoadLibraryExW(os.path.abspath(os.path.join(versionedLibPath,u"nvdaHelperRemote.dll")),0,0x8)
if not h:
log.critical("Error loading nvdaHelperRemote.dll: %s" % WinError())
return
_remoteLib=CDLL("nvdaHelperRemote",handle=h)
if _remoteLib.injection_initialize(globalVars.appArgs.secure) == 0:
raise RuntimeError("Error initializing NVDAHelperRemote")
if not _remoteLib.installIA2Support():
log.error("Error installing IA2 support")
#Manually start the in-process manager thread for this NVDA main thread now, as a slow system can cause this action to confuse WX
_remoteLib.initInprocManagerThreadIfNeeded()
if os.environ.get('PROCESSOR_ARCHITEW6432') in ('AMD64', 'ARM64'):
_remoteLoader64=RemoteLoader64()
def initialize():
global _remoteLib, _remoteLoader64, localLib, generateBeep,VBuf_getTextInRange
localLib=cdll.LoadLibrary('lib/nvdaHelperLocal.dll')
for name,func in [
("nvdaController_speakText",nvdaController_speakText),
("nvdaController_cancelSpeech",nvdaController_cancelSpeech),
("nvdaController_brailleMessage",nvdaController_brailleMessage),
("nvdaControllerInternal_requestRegistration",nvdaControllerInternal_requestRegistration),
("nvdaControllerInternal_inputLangChangeNotify",nvdaControllerInternal_inputLangChangeNotify),
("nvdaControllerInternal_typedCharacterNotify",nvdaControllerInternal_typedCharacterNotify),
("nvdaControllerInternal_displayModelTextChangeNotify",nvdaControllerInternal_displayModelTextChangeNotify),
("nvdaControllerInternal_logMessage",nvdaControllerInternal_logMessage),
("nvdaControllerInternal_inputCompositionUpdate",nvdaControllerInternal_inputCompositionUpdate),
("nvdaControllerInternal_inputCandidateListUpdate",nvdaControllerInternal_inputCandidateListUpdate),
("nvdaControllerInternal_IMEOpenStatusUpdate",nvdaControllerInternal_IMEOpenStatusUpdate),
("nvdaControllerInternal_inputConversionModeUpdate",nvdaControllerInternal_inputConversionModeUpdate),
("nvdaControllerInternal_vbufChangeNotify",nvdaControllerInternal_vbufChangeNotify),
("nvdaControllerInternal_installAddonPackageFromPath",nvdaControllerInternal_installAddonPackageFromPath),
("nvdaControllerInternal_drawFocusRectNotify",nvdaControllerInternal_drawFocusRectNotify),
]:
try:
_setDllFuncPointer(localLib,"_%s"%name,func)
except AttributeError as e:
log.error("nvdaHelperLocal function pointer for %s could not be found, possibly old nvdaHelperLocal dll"%name,exc_info=True)
raise e
localLib.nvdaHelperLocal_initialize()
generateBeep=localLib.generateBeep
generateBeep.argtypes=[c_char_p,c_float,c_int,c_int,c_int]
generateBeep.restype=c_int
# Handle VBuf_getTextInRange's BSTR out parameter so that the BSTR will be freed automatically.
VBuf_getTextInRange = CFUNCTYPE(c_int, c_int, c_int, c_int, POINTER(BSTR), c_int)(
("VBuf_getTextInRange", localLib),
((1,), (1,), (1,), (2,), (1,)))
#Load nvdaHelperRemote.dll but with an altered search path so it can pick up other dlls in lib
h=windll.kernel32.LoadLibraryExW(os.path.abspath(ur"lib\nvdaHelperRemote.dll"),0,0x8)
if not h:
log.critical("Error loading nvdaHelperRemote.dll: %s" % WinError())
return
_remoteLib=CDLL("nvdaHelperRemote",handle=h)
if _remoteLib.injection_initialize(globalVars.appArgs.secure) == 0:
raise RuntimeError("Error initializing NVDAHelperRemote")
if not _remoteLib.installIA2Support():
log.error("Error installing IA2 support")
#Manually start the in-process manager thread for this NVDA main thread now, as a slow system can cause this action to confuse WX
_remoteLib.initInprocManagerThreadIfNeeded()
if os.environ.get('PROCESSOR_ARCHITEW6432')=='AMD64':
_remoteLoader64=RemoteLoader64()
def _crashHandler(exceptionInfo):
threadId = ctypes.windll.kernel32.GetCurrentThreadId()
# An exception might have been set for this thread.
# Clear it so that it doesn't get raised in this function.
ctypes.pythonapi.PyThreadState_SetAsyncExc(threadId, None)
# Write a minidump.
dumpPath = os.path.join(globalVars.appArgs.logFileName, "..",
"nvda_crash.dmp")
try:
# Though we aren't using pythonic functions to write to the dump file,
# open it in binary mode as opening it in text mode (the default) doesn't make sense.
with open(dumpPath, "wb") as mdf:
mdExc = MINIDUMP_EXCEPTION_INFORMATION(
ThreadId=threadId,
ExceptionPointers=exceptionInfo,
ClientPointers=False)
if not ctypes.windll.DbgHelp.MiniDumpWriteDump(
ctypes.windll.kernel32.GetCurrentProcess(),
os.getpid(),
msvcrt.get_osfhandle(mdf.fileno()),
0, # MiniDumpNormal
ctypes.byref(mdExc),
None,
None):
raise ctypes.WinError()
except:
log.critical("NVDA crashed! Error writing minidump", exc_info=True)
else:
log.critical("NVDA crashed! Minidump written to %s" % dumpPath)
# Log Python stacks for every thread.
stacks = getFormattedStacksForAllThreads()
log.info(f"Listing stacks for Python threads:\n{stacks}")
log.info("Restarting due to crash")
# if NVDA has crashed we cannot rely on the queue handler to start the new NVDA instance
core.restartUnsafely()
return 1 # EXCEPTION_EXECUTE_HANDLER
