We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
NVDA hangs up in terminal, when a large piece of text is loaded
I know that normal user doesn't have this problem.
But developers, mainly developers working in terminal, could have.

When large piece of text is loaded to the terminal at the same time, for example, 10000 characters of more, NVDA is hanging up. Also, after a moment, the system hangs up.
The only way is to wait.
NVDA is not reading the text, it's reading pieces of text, then a moment of silence, different piece, silence...

For example, I can call this in ruby by writing

for i in 1..100000
print("A fragment number #{i.to_s} ")
end

Also, we can find this error, when we'll using in terminal app, which writes big pieces of text.
In console commands, like tree, we won't observe this eror, because it isn't loading of text at the same time, there's a while between printing new files.

What is interesting...
The problem is hanging up the all system, you can not open task manager or other apps.

Thank you for help
Greetings,
Dawid Pieper


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `source/winInputHook.py`
Content:
```
1 #winInputHook.py
2 #A part of NonVisual Desktop Access (NVDA)
3 #Copyright (C) 2006-2008 NVDA Contributors <http://www.nvda-project.org/>
4 #This file is covered by the GNU General Public License.
5 #See the file COPYING for more details.
6 
7 import threading
8 import comtypes.client
9 import time
10 from ctypes import *
11 from ctypes.wintypes import *
12 from win32con import WM_QUIT, HC_ACTION, WH_KEYBOARD_LL, LLKHF_UP, LLKHF_EXTENDED, LLKHF_INJECTED, WH_MOUSE_LL, LLMHF_INJECTED
13 
14 class KBDLLHOOKSTRUCT(Structure):
15 	_fields_=[
16 		('vkCode',DWORD),
17 		('scanCode',DWORD),
18 		('flags',DWORD),
19 		('time',DWORD),
20 		('dwExtraInfo',DWORD),
21 	]
22 
23 class MSLLHOOKSTRUCT(Structure):
24 	_fields_=[
25 		('pt',POINT),
26 		('mouseData',DWORD),
27 		('flags',DWORD),
28 		('time',DWORD),
29 		('dwExtraInfo',DWORD),
30 	]
31 
32 keyDownCallback=None
33 keyUpCallback=None
34 mouseCallback=None
35 
36 @WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)
37 def keyboardHook(code,wParam,lParam):
38 	if code!=HC_ACTION:
39 		return windll.user32.CallNextHookEx(0,code,wParam,lParam)
40 	kbd=KBDLLHOOKSTRUCT.from_address(lParam)
41 	if keyUpCallback and kbd.flags&LLKHF_UP:
42 		if not keyUpCallback(kbd.vkCode,kbd.scanCode,bool(kbd.flags&LLKHF_EXTENDED),bool(kbd.flags&LLKHF_INJECTED)):
43 			return 1
44 	elif keyDownCallback:
45 		if not keyDownCallback(kbd.vkCode,kbd.scanCode,bool(kbd.flags&LLKHF_EXTENDED),bool(kbd.flags&LLKHF_INJECTED)):
46 			return 1
47 	return windll.user32.CallNextHookEx(0,code,wParam,lParam)
48 
49 @WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)
50 def mouseHook(code,wParam,lParam):
51 	if code!=HC_ACTION:
52 		return windll.user32.CallNextHookEx(0,code,wParam,lParam)
53 	msll=MSLLHOOKSTRUCT.from_address(lParam)
54 	if mouseCallback:
55 		if not mouseCallback(wParam,msll.pt.x,msll.pt.y,msll.flags&LLMHF_INJECTED):
56 			return 1
57 	return windll.user32.CallNextHookEx(0,code,wParam,lParam)
58 
59 hookThread=None
60 hookThreadRefCount=0
61 
62 def hookThreadFunc():
63 	keyHookID=windll.user32.SetWindowsHookExW(WH_KEYBOARD_LL,keyboardHook,windll.kernel32.GetModuleHandleW(None),0)
64 	if keyHookID==0:
65 		raise OSError("Could not register keyboard hook")
66 	mouseHookID=windll.user32.SetWindowsHookExW(WH_MOUSE_LL,mouseHook,windll.kernel32.GetModuleHandleW(None),0)
67 	if mouseHookID==0:
68 		raise OSError("Could not register mouse hook")
69 	msg=MSG()
70 	while windll.user32.GetMessageW(byref(msg),None,0,0):
71 		pass
72 	if windll.user32.UnhookWindowsHookEx(keyHookID)==0:
73 		raise OSError("could not unregister key hook %s"%keyHookID)
74 	if windll.user32.UnhookWindowsHookEx(mouseHookID)==0:
75 		raise OSError("could not unregister mouse hook %s"%mouseHookID)
76 
77 def initialize():
78 	global hookThread, hookThreadRefCount
79 	hookThreadRefCount+=1
80 	if hookThreadRefCount==1:
81 		hookThread=threading.Thread(target=hookThreadFunc)
82 		hookThread.start()
83 
84 def setCallbacks(keyUp=None,keyDown=None,mouse=None):
85 	global keyUpCallback, keyDownCallback, mouseCallback
86 	if keyUp:
87 		keyUpCallback=keyUp
88 	if keyDown:
89 		keyDownCallback=keyDown
90 	if mouse:
91 		mouseCallback=mouse
92 
93 def terminate():
94 	global hookThread, hookThreadRefCount
95 	if not hookThread:
96 		raise RuntimeError("winInputHook not running")
97 	hookThreadRefCount-=1
98 	if hookThreadRefCount==0:
99 		windll.user32.PostThreadMessageW(hookThread.ident,WM_QUIT,0,0)
100 		hookThread.join()
101 		hookThread=None
102
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/source/winInputHook.py b/source/winInputHook.py
--- a/source/winInputHook.py
+++ b/source/winInputHook.py
@@ -10,6 +10,7 @@
 from ctypes import *
 from ctypes.wintypes import *
 from win32con import WM_QUIT, HC_ACTION, WH_KEYBOARD_LL, LLKHF_UP, LLKHF_EXTENDED, LLKHF_INJECTED, WH_MOUSE_LL, LLMHF_INJECTED
+import watchdog
 
 class KBDLLHOOKSTRUCT(Structure):
 	_fields_=[
@@ -35,7 +36,7 @@
 
 @WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)
 def keyboardHook(code,wParam,lParam):
-	if code!=HC_ACTION:
+	if watchdog.isAttemptingRecovery or code!=HC_ACTION:
 		return windll.user32.CallNextHookEx(0,code,wParam,lParam)
 	kbd=KBDLLHOOKSTRUCT.from_address(lParam)
 	if keyUpCallback and kbd.flags&LLKHF_UP:
@@ -48,7 +49,7 @@
 
 @WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)
 def mouseHook(code,wParam,lParam):
-	if code!=HC_ACTION:
+	if watchdog.isAttemptingRecovery or code!=HC_ACTION:
 		return windll.user32.CallNextHookEx(0,code,wParam,lParam)
 	msll=MSLLHOOKSTRUCT.from_address(lParam)
 	if mouseCallback:

{"golden_diff": "diff --git a/source/winInputHook.py b/source/winInputHook.py\n--- a/source/winInputHook.py\n+++ b/source/winInputHook.py\n@@ -10,6 +10,7 @@\n from ctypes import *\r\n from ctypes.wintypes import *\r\n from win32con import WM_QUIT, HC_ACTION, WH_KEYBOARD_LL, LLKHF_UP, LLKHF_EXTENDED, LLKHF_INJECTED, WH_MOUSE_LL, LLMHF_INJECTED\r\n+import watchdog\r\n \r\n class KBDLLHOOKSTRUCT(Structure):\r\n \t_fields_=[\r\n@@ -35,7 +36,7 @@\n \r\n @WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)\r\n def keyboardHook(code,wParam,lParam):\r\n-\tif code!=HC_ACTION:\r\n+\tif watchdog.isAttemptingRecovery or code!=HC_ACTION:\r\n \t\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n \tkbd=KBDLLHOOKSTRUCT.from_address(lParam)\r\n \tif keyUpCallback and kbd.flags&LLKHF_UP:\r\n@@ -48,7 +49,7 @@\n \r\n @WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)\r\n def mouseHook(code,wParam,lParam):\r\n-\tif code!=HC_ACTION:\r\n+\tif watchdog.isAttemptingRecovery or code!=HC_ACTION:\r\n \t\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n \tmsll=MSLLHOOKSTRUCT.from_address(lParam)\r\n \tif mouseCallback:\n", "issue": "NVDA hangs up in terminal, when a large piece of text is loaded\nI know that normal user doesn't have this problem.\nBut developers, mainly developers working in terminal, could have.\n\nWhen large piece of text is loaded to the terminal at the same time, for example, 10000 characters of more, NVDA is hanging up. Also, after a moment, the system hangs up.\nThe only way is to wait.\nNVDA is not reading the text, it's reading pieces of text, then a moment of silence, different piece, silence...\n\nFor example, I can call this in ruby by writing\n\nfor i in 1..100000\nprint(\"A fragment number #{i.to_s} \")\nend\n\nAlso, we can find this error, when we'll using in terminal app, which writes big pieces of text.\nIn console commands, like tree, we won't observe this eror, because it isn't loading of text at the same time, there's a while between printing new files.\n\nWhat is interesting...\nThe problem is hanging up the all system, you can not open task manager or other apps.\n\nThank you for help\nGreetings,\nDawid Pieper\n\n", "before_files": [{"content": "#winInputHook.py\r\n#A part of NonVisual Desktop Access (NVDA)\r\n#Copyright (C) 2006-2008 NVDA Contributors <http://www.nvda-project.org/>\r\n#This file is covered by the GNU General Public License.\r\n#See the file COPYING for more details.\r\n\r\nimport threading\r\nimport comtypes.client\r\nimport time\r\nfrom ctypes import *\r\nfrom ctypes.wintypes import *\r\nfrom win32con import WM_QUIT, HC_ACTION, WH_KEYBOARD_LL, LLKHF_UP, LLKHF_EXTENDED, LLKHF_INJECTED, WH_MOUSE_LL, LLMHF_INJECTED\r\n\r\nclass KBDLLHOOKSTRUCT(Structure):\r\n\t_fields_=[\r\n\t\t('vkCode',DWORD),\r\n\t\t('scanCode',DWORD),\r\n\t\t('flags',DWORD),\r\n\t\t('time',DWORD),\r\n\t\t('dwExtraInfo',DWORD),\r\n\t]\r\n\r\nclass MSLLHOOKSTRUCT(Structure):\r\n\t_fields_=[\r\n\t\t('pt',POINT),\r\n\t\t('mouseData',DWORD),\r\n\t\t('flags',DWORD),\r\n\t\t('time',DWORD),\r\n\t\t('dwExtraInfo',DWORD),\r\n\t]\r\n\r\nkeyDownCallback=None\r\nkeyUpCallback=None\r\nmouseCallback=None\r\n\r\n@WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)\r\ndef keyboardHook(code,wParam,lParam):\r\n\tif code!=HC_ACTION:\r\n\t\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\tkbd=KBDLLHOOKSTRUCT.from_address(lParam)\r\n\tif keyUpCallback and kbd.flags&LLKHF_UP:\r\n\t\tif not keyUpCallback(kbd.vkCode,kbd.scanCode,bool(kbd.flags&LLKHF_EXTENDED),bool(kbd.flags&LLKHF_INJECTED)):\r\n\t\t\treturn 1\r\n\telif keyDownCallback:\r\n\t\tif not keyDownCallback(kbd.vkCode,kbd.scanCode,bool(kbd.flags&LLKHF_EXTENDED),bool(kbd.flags&LLKHF_INJECTED)):\r\n\t\t\treturn 1\r\n\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\r\n@WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)\r\ndef mouseHook(code,wParam,lParam):\r\n\tif code!=HC_ACTION:\r\n\t\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\tmsll=MSLLHOOKSTRUCT.from_address(lParam)\r\n\tif mouseCallback:\r\n\t\tif not mouseCallback(wParam,msll.pt.x,msll.pt.y,msll.flags&LLMHF_INJECTED):\r\n\t\t\treturn 1\r\n\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\r\nhookThread=None\r\nhookThreadRefCount=0\r\n\r\ndef hookThreadFunc():\r\n\tkeyHookID=windll.user32.SetWindowsHookExW(WH_KEYBOARD_LL,keyboardHook,windll.kernel32.GetModuleHandleW(None),0)\r\n\tif keyHookID==0:\r\n\t\traise OSError(\"Could not register keyboard hook\")\r\n\tmouseHookID=windll.user32.SetWindowsHookExW(WH_MOUSE_LL,mouseHook,windll.kernel32.GetModuleHandleW(None),0)\r\n\tif mouseHookID==0:\r\n\t\traise OSError(\"Could not register mouse hook\")\r\n\tmsg=MSG()\r\n\twhile windll.user32.GetMessageW(byref(msg),None,0,0):\r\n\t\tpass\r\n\tif windll.user32.UnhookWindowsHookEx(keyHookID)==0:\r\n\t\traise OSError(\"could not unregister key hook %s\"%keyHookID)\r\n\tif windll.user32.UnhookWindowsHookEx(mouseHookID)==0:\r\n\t\traise OSError(\"could not unregister mouse hook %s\"%mouseHookID)\r\n\r\ndef initialize():\r\n\tglobal hookThread, hookThreadRefCount\r\n\thookThreadRefCount+=1\r\n\tif hookThreadRefCount==1:\r\n\t\thookThread=threading.Thread(target=hookThreadFunc)\r\n\t\thookThread.start()\r\n\r\ndef setCallbacks(keyUp=None,keyDown=None,mouse=None):\r\n\tglobal keyUpCallback, keyDownCallback, mouseCallback\r\n\tif keyUp:\r\n\t\tkeyUpCallback=keyUp\r\n\tif keyDown:\r\n\t\tkeyDownCallback=keyDown\r\n\tif mouse:\r\n\t\tmouseCallback=mouse\r\n\r\ndef terminate():\r\n\tglobal hookThread, hookThreadRefCount\r\n\tif not hookThread:\r\n\t\traise RuntimeError(\"winInputHook not running\")\r\n\thookThreadRefCount-=1\r\n\tif hookThreadRefCount==0:\r\n\t\twindll.user32.PostThreadMessageW(hookThread.ident,WM_QUIT,0,0)\r\n\t\thookThread.join()\r\n\t\thookThread=None\r\n", "path": "source/winInputHook.py"}], "after_files": [{"content": "#winInputHook.py\r\n#A part of NonVisual Desktop Access (NVDA)\r\n#Copyright (C) 2006-2008 NVDA Contributors <http://www.nvda-project.org/>\r\n#This file is covered by the GNU General Public License.\r\n#See the file COPYING for more details.\r\n\r\nimport threading\r\nimport comtypes.client\r\nimport time\r\nfrom ctypes import *\r\nfrom ctypes.wintypes import *\r\nfrom win32con import WM_QUIT, HC_ACTION, WH_KEYBOARD_LL, LLKHF_UP, LLKHF_EXTENDED, LLKHF_INJECTED, WH_MOUSE_LL, LLMHF_INJECTED\r\nimport watchdog\r\n\r\nclass KBDLLHOOKSTRUCT(Structure):\r\n\t_fields_=[\r\n\t\t('vkCode',DWORD),\r\n\t\t('scanCode',DWORD),\r\n\t\t('flags',DWORD),\r\n\t\t('time',DWORD),\r\n\t\t('dwExtraInfo',DWORD),\r\n\t]\r\n\r\nclass MSLLHOOKSTRUCT(Structure):\r\n\t_fields_=[\r\n\t\t('pt',POINT),\r\n\t\t('mouseData',DWORD),\r\n\t\t('flags',DWORD),\r\n\t\t('time',DWORD),\r\n\t\t('dwExtraInfo',DWORD),\r\n\t]\r\n\r\nkeyDownCallback=None\r\nkeyUpCallback=None\r\nmouseCallback=None\r\n\r\n@WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)\r\ndef keyboardHook(code,wParam,lParam):\r\n\tif watchdog.isAttemptingRecovery or code!=HC_ACTION:\r\n\t\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\tkbd=KBDLLHOOKSTRUCT.from_address(lParam)\r\n\tif keyUpCallback and kbd.flags&LLKHF_UP:\r\n\t\tif not keyUpCallback(kbd.vkCode,kbd.scanCode,bool(kbd.flags&LLKHF_EXTENDED),bool(kbd.flags&LLKHF_INJECTED)):\r\n\t\t\treturn 1\r\n\telif keyDownCallback:\r\n\t\tif not keyDownCallback(kbd.vkCode,kbd.scanCode,bool(kbd.flags&LLKHF_EXTENDED),bool(kbd.flags&LLKHF_INJECTED)):\r\n\t\t\treturn 1\r\n\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\r\n@WINFUNCTYPE(c_long,c_int,WPARAM,LPARAM)\r\ndef mouseHook(code,wParam,lParam):\r\n\tif watchdog.isAttemptingRecovery or code!=HC_ACTION:\r\n\t\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\tmsll=MSLLHOOKSTRUCT.from_address(lParam)\r\n\tif mouseCallback:\r\n\t\tif not mouseCallback(wParam,msll.pt.x,msll.pt.y,msll.flags&LLMHF_INJECTED):\r\n\t\t\treturn 1\r\n\treturn windll.user32.CallNextHookEx(0,code,wParam,lParam)\r\n\r\nhookThread=None\r\nhookThreadRefCount=0\r\n\r\ndef hookThreadFunc():\r\n\tkeyHookID=windll.user32.SetWindowsHookExW(WH_KEYBOARD_LL,keyboardHook,windll.kernel32.GetModuleHandleW(None),0)\r\n\tif keyHookID==0:\r\n\t\traise OSError(\"Could not register keyboard hook\")\r\n\tmouseHookID=windll.user32.SetWindowsHookExW(WH_MOUSE_LL,mouseHook,windll.kernel32.GetModuleHandleW(None),0)\r\n\tif mouseHookID==0:\r\n\t\traise OSError(\"Could not register mouse hook\")\r\n\tmsg=MSG()\r\n\twhile windll.user32.GetMessageW(byref(msg),None,0,0):\r\n\t\tpass\r\n\tif windll.user32.UnhookWindowsHookEx(keyHookID)==0:\r\n\t\traise OSError(\"could not unregister key hook %s\"%keyHookID)\r\n\tif windll.user32.UnhookWindowsHookEx(mouseHookID)==0:\r\n\t\traise OSError(\"could not unregister mouse hook %s\"%mouseHookID)\r\n\r\ndef initialize():\r\n\tglobal hookThread, hookThreadRefCount\r\n\thookThreadRefCount+=1\r\n\tif hookThreadRefCount==1:\r\n\t\thookThread=threading.Thread(target=hookThreadFunc)\r\n\t\thookThread.start()\r\n\r\ndef setCallbacks(keyUp=None,keyDown=None,mouse=None):\r\n\tglobal keyUpCallback, keyDownCallback, mouseCallback\r\n\tif keyUp:\r\n\t\tkeyUpCallback=keyUp\r\n\tif keyDown:\r\n\t\tkeyDownCallback=keyDown\r\n\tif mouse:\r\n\t\tmouseCallback=mouse\r\n\r\ndef terminate():\r\n\tglobal hookThread, hookThreadRefCount\r\n\tif not hookThread:\r\n\t\traise RuntimeError(\"winInputHook not running\")\r\n\thookThreadRefCount-=1\r\n\tif hookThreadRefCount==0:\r\n\t\twindll.user32.PostThreadMessageW(hookThread.ident,WM_QUIT,0,0)\r\n\t\thookThread.join()\r\n\t\thookThread=None\r\n", "path": "source/winInputHook.py"}]}