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backing up sublime settings

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Stuart Stent
2014-04-04 11:21:58 -04:00
commit 2cbece8593
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Packages/SublimeREPL/repls/killableprocess/winprocess.py Normal file
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# A module to expose various thread/process/job related structures and
# methods from kernel32
#
# The MIT License
#
# Copyright (c) 2003-2004 by Peter Astrand <astrand@lysator.liu.se>
#
# Additions and modifications written by Benjamin Smedberg
# <benjamin@smedbergs.us> are Copyright (c) 2006 by the Mozilla Foundation
# <http://www.mozilla.org/>
#
# More Modifications
# Copyright (c) 2006-2007 by Mike Taylor <bear@code-bear.com>
# Copyright (c) 2007-2008 by Mikeal Rogers <mikeal@mozilla.com>
#
# By obtaining, using, and/or copying this software and/or its
# associated documentation, you agree that you have read, understood,
# and will comply with the following terms and conditions:
#
# Permission to use, copy, modify, and distribute this software and
# its associated documentation for any purpose and without fee is
# hereby granted, provided that the above copyright notice appears in
# all copies, and that both that copyright notice and this permission
# notice appear in supporting documentation, and that the name of the
# author not be used in advertising or publicity pertaining to
# distribution of the software without specific, written prior
# permission.
#
# THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
from ctypes import c_void_p, POINTER, sizeof, Structure, windll, WinError, WINFUNCTYPE
from ctypes.wintypes import BOOL, BYTE, DWORD, HANDLE, LPCWSTR, LPWSTR, UINT, WORD
from .qijo import QueryInformationJobObject
LPVOID = c_void_p
LPBYTE = POINTER(BYTE)
LPDWORD = POINTER(DWORD)
LPBOOL = POINTER(BOOL)
def ErrCheckBool(result, func, args):
"""errcheck function for Windows functions that return a BOOL True
on success"""
if not result:
raise WinError()
return args
# AutoHANDLE
class AutoHANDLE(HANDLE):
"""Subclass of HANDLE which will call CloseHandle() on deletion."""
CloseHandleProto = WINFUNCTYPE(BOOL, HANDLE)
CloseHandle = CloseHandleProto(("CloseHandle", windll.kernel32))
CloseHandle.errcheck = ErrCheckBool
def Close(self):
if self.value and self.value != HANDLE(-1).value:
self.CloseHandle(self)
self.value = 0
def __del__(self):
self.Close()
def __int__(self):
return self.value
def ErrCheckHandle(result, func, args):
"""errcheck function for Windows functions that return a HANDLE."""
if not result:
raise WinError()
return AutoHANDLE(result)
# PROCESS_INFORMATION structure
class PROCESS_INFORMATION(Structure):
_fields_ = [("hProcess", HANDLE),
("hThread", HANDLE),
("dwProcessID", DWORD),
("dwThreadID", DWORD)]
def __init__(self):
Structure.__init__(self)
self.cb = sizeof(self)
LPPROCESS_INFORMATION = POINTER(PROCESS_INFORMATION)
# STARTUPINFO structure
class STARTUPINFO(Structure):
_fields_ = [("cb", DWORD),
("lpReserved", LPWSTR),
("lpDesktop", LPWSTR),
("lpTitle", LPWSTR),
("dwX", DWORD),
("dwY", DWORD),
("dwXSize", DWORD),
("dwYSize", DWORD),
("dwXCountChars", DWORD),
("dwYCountChars", DWORD),
("dwFillAttribute", DWORD),
("dwFlags", DWORD),
("wShowWindow", WORD),
("cbReserved2", WORD),
("lpReserved2", LPBYTE),
("hStdInput", HANDLE),
("hStdOutput", HANDLE),
("hStdError", HANDLE)
]
LPSTARTUPINFO = POINTER(STARTUPINFO)
SW_HIDE = 0
STARTF_USESHOWWINDOW = 0x01
STARTF_USESIZE = 0x02
STARTF_USEPOSITION = 0x04
STARTF_USECOUNTCHARS = 0x08
STARTF_USEFILLATTRIBUTE = 0x10
STARTF_RUNFULLSCREEN = 0x20
STARTF_FORCEONFEEDBACK = 0x40
STARTF_FORCEOFFFEEDBACK = 0x80
STARTF_USESTDHANDLES = 0x100
# EnvironmentBlock
class EnvironmentBlock:
"""An object which can be passed as the lpEnv parameter of CreateProcess.
It is initialized with a dictionary."""
def __init__(self, dict):
if not dict:
self._as_parameter_ = None
else:
values = ["%s=%s" % (key, value)
for (key, value) in dict.items()]
values.append("")
self._as_parameter_ = LPCWSTR("\0".join(values))
# CreateProcess()
CreateProcessProto = WINFUNCTYPE(BOOL, # Return type
LPCWSTR, # lpApplicationName
LPWSTR, # lpCommandLine
LPVOID, # lpProcessAttributes
LPVOID, # lpThreadAttributes
BOOL, # bInheritHandles
DWORD, # dwCreationFlags
LPVOID, # lpEnvironment
LPCWSTR, # lpCurrentDirectory
LPSTARTUPINFO, # lpStartupInfo
LPPROCESS_INFORMATION # lpProcessInformation
)
CreateProcessFlags = ((1, "lpApplicationName", None),
(1, "lpCommandLine"),
(1, "lpProcessAttributes", None),
(1, "lpThreadAttributes", None),
(1, "bInheritHandles", True),
(1, "dwCreationFlags", 0),
(1, "lpEnvironment", None),
(1, "lpCurrentDirectory", None),
(1, "lpStartupInfo"),
(2, "lpProcessInformation"))
def ErrCheckCreateProcess(result, func, args):
ErrCheckBool(result, func, args)
# return a tuple (hProcess, hThread, dwProcessID, dwThreadID)
pi = args[9]
return AutoHANDLE(pi.hProcess), AutoHANDLE(pi.hThread), pi.dwProcessID, pi.dwThreadID
CreateProcess = CreateProcessProto(("CreateProcessW", windll.kernel32),
CreateProcessFlags)
CreateProcess.errcheck = ErrCheckCreateProcess
# flags for CreateProcess
CREATE_BREAKAWAY_FROM_JOB = 0x01000000
CREATE_DEFAULT_ERROR_MODE = 0x04000000
CREATE_NEW_CONSOLE = 0x00000010
CREATE_NEW_PROCESS_GROUP = 0x00000200
CREATE_NO_WINDOW = 0x08000000
CREATE_SUSPENDED = 0x00000004
CREATE_UNICODE_ENVIRONMENT = 0x00000400
# flags for job limit information
# see http://msdn.microsoft.com/en-us/library/ms684147%28VS.85%29.aspx
JOB_OBJECT_LIMIT_BREAKAWAY_OK = 0x00000800
JOB_OBJECT_LIMIT_SILENT_BREAKAWAY_OK = 0x00001000
# XXX these flags should be documented
DEBUG_ONLY_THIS_PROCESS = 0x00000002
DEBUG_PROCESS = 0x00000001
DETACHED_PROCESS = 0x00000008
# CreateJobObject()
CreateJobObjectProto = WINFUNCTYPE(HANDLE, # Return type
LPVOID, # lpJobAttributes
LPCWSTR # lpName
)
CreateJobObjectFlags = ((1, "lpJobAttributes", None),
(1, "lpName", None))
CreateJobObject = CreateJobObjectProto(("CreateJobObjectW", windll.kernel32),
CreateJobObjectFlags)
CreateJobObject.errcheck = ErrCheckHandle
# AssignProcessToJobObject()
AssignProcessToJobObjectProto = WINFUNCTYPE(BOOL, # Return type
HANDLE, # hJob
HANDLE # hProcess
)
AssignProcessToJobObjectFlags = ((1, "hJob"),
(1, "hProcess"))
AssignProcessToJobObject = AssignProcessToJobObjectProto(
("AssignProcessToJobObject", windll.kernel32),
AssignProcessToJobObjectFlags)
AssignProcessToJobObject.errcheck = ErrCheckBool
# GetCurrentProcess()
# because os.getPid() is way too easy
GetCurrentProcessProto = WINFUNCTYPE(HANDLE # Return type
)
GetCurrentProcessFlags = ()
GetCurrentProcess = GetCurrentProcessProto(
("GetCurrentProcess", windll.kernel32),
GetCurrentProcessFlags)
GetCurrentProcess.errcheck = ErrCheckHandle
# IsProcessInJob()
try:
IsProcessInJobProto = WINFUNCTYPE(BOOL, # Return type
HANDLE, # Process Handle
HANDLE, # Job Handle
LPBOOL # Result
)
IsProcessInJobFlags = ((1, "ProcessHandle"),
(1, "JobHandle", HANDLE(0)),
(2, "Result"))
IsProcessInJob = IsProcessInJobProto(
("IsProcessInJob", windll.kernel32),
IsProcessInJobFlags)
IsProcessInJob.errcheck = ErrCheckBool
except AttributeError:
# windows 2k doesn't have this API
def IsProcessInJob(process):
return False
# ResumeThread()
def ErrCheckResumeThread(result, func, args):
if result == -1:
raise WinError()
return args
ResumeThreadProto = WINFUNCTYPE(DWORD, # Return type
HANDLE # hThread
)
ResumeThreadFlags = ((1, "hThread"),)
ResumeThread = ResumeThreadProto(("ResumeThread", windll.kernel32),
ResumeThreadFlags)
ResumeThread.errcheck = ErrCheckResumeThread
# TerminateProcess()
TerminateProcessProto = WINFUNCTYPE(BOOL, # Return type
HANDLE, # hProcess
UINT # uExitCode
)
TerminateProcessFlags = ((1, "hProcess"),
(1, "uExitCode", 127))
TerminateProcess = TerminateProcessProto(
("TerminateProcess", windll.kernel32),
TerminateProcessFlags)
TerminateProcess.errcheck = ErrCheckBool
# TerminateJobObject()
TerminateJobObjectProto = WINFUNCTYPE(BOOL, # Return type
HANDLE, # hJob
UINT # uExitCode
)
TerminateJobObjectFlags = ((1, "hJob"),
(1, "uExitCode", 127))
TerminateJobObject = TerminateJobObjectProto(
("TerminateJobObject", windll.kernel32),
TerminateJobObjectFlags)
TerminateJobObject.errcheck = ErrCheckBool
# WaitForSingleObject()
WaitForSingleObjectProto = WINFUNCTYPE(DWORD, # Return type
HANDLE, # hHandle
DWORD, # dwMilliseconds
)
WaitForSingleObjectFlags = ((1, "hHandle"),
(1, "dwMilliseconds", -1))
WaitForSingleObject = WaitForSingleObjectProto(
("WaitForSingleObject", windll.kernel32),
WaitForSingleObjectFlags)
INFINITE = -1
WAIT_TIMEOUT = 0x0102
WAIT_OBJECT_0 = 0x0
WAIT_ABANDONED = 0x0080
# GetExitCodeProcess()
GetExitCodeProcessProto = WINFUNCTYPE(BOOL, # Return type
HANDLE, # hProcess
LPDWORD, # lpExitCode
)
GetExitCodeProcessFlags = ((1, "hProcess"),
(2, "lpExitCode"))
GetExitCodeProcess = GetExitCodeProcessProto(
("GetExitCodeProcess", windll.kernel32),
GetExitCodeProcessFlags)
GetExitCodeProcess.errcheck = ErrCheckBool
def CanCreateJobObject():
currentProc = GetCurrentProcess()
if IsProcessInJob(currentProc):
jobinfo = QueryInformationJobObject(HANDLE(0), 'JobObjectExtendedLimitInformation')
limitflags = jobinfo['BasicLimitInformation']['LimitFlags']
return bool(limitflags & JOB_OBJECT_LIMIT_BREAKAWAY_OK) or bool(limitflags & JOB_OBJECT_LIMIT_SILENT_BREAKAWAY_OK)
else:
return True
### testing functions
def parent():
print('Starting parent')
currentProc = GetCurrentProcess()
if IsProcessInJob(currentProc):
print("You should not be in a job object to test")
sys.exit(1)
assert CanCreateJobObject()
print('File: %s' % __file__)
command = [sys.executable, __file__, '-child']
print('Running command: %s' % command)
process = Popen(command)
process.kill()
code = process.returncode
print('Child code: %s' % code)
assert code == 127
def child():
print('Starting child')
currentProc = GetCurrentProcess()
injob = IsProcessInJob(currentProc)
print("Is in a job?: %s" % injob)
can_create = CanCreateJobObject()
print('Can create job?: %s' % can_create)
process = Popen('c:\\windows\\notepad.exe')
assert process._job
jobinfo = QueryInformationJobObject(process._job, 'JobObjectExtendedLimitInformation')
print('Job info: %s' % jobinfo)
limitflags = jobinfo['BasicLimitInformation']['LimitFlags']
print('LimitFlags: %s' % limitflags)
process.kill()