Python win32con.FILE_SHARE_READ Examples
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code examples of win32con.FILE_SHARE_READ().
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Example #1
Source File: windows_support.py From avocado-vt with GNU General Public License v2.0 | 7 votes |
def __init__(self, filename): self._hfile = win32file.CreateFile(filename, win32con.GENERIC_READ | win32con.GENERIC_WRITE, win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE, win32security.SECURITY_ATTRIBUTES(), win32con.OPEN_EXISTING, win32con.FILE_FLAG_OVERLAPPED, 0) self._read_ovrlpd = pywintypes.OVERLAPPED() self._read_ovrlpd.hEvent = win32event.CreateEvent(None, True, False, None) self._write_ovrlpd = pywintypes.OVERLAPPED() self._write_ovrlpd.hEvent = win32event.CreateEvent(None, True, False, None) self._bufs = [] self._n = 0
Example #2
Source File: win32.py From multibootusb with GNU General Public License v2.0 | 6 votes |
def _openHandle(path, bWriteAccess, bWriteShare, logfunc = lambda s: None): TIMEOUT, NUM_RETRIES = 10, 20 for retry_count in range(6): try: access_flag = win32con.GENERIC_READ | \ (bWriteAccess and win32con.GENERIC_WRITE or 0) share_flag = win32con.FILE_SHARE_READ | \ (bWriteShare and win32con.FILE_SHARE_WRITE or 0) handle = win32file.CreateFile( path, access_flag, share_flag, None, win32con.OPEN_EXISTING, win32con.FILE_ATTRIBUTE_NORMAL, None) nth = { 0: 'first', 1:'second', 2:'third'} logfunc("Opening [%s]: success at the %s iteration" % (path, nth.get(retry_count, '%sth' % (retry_count+1)))) return handle except pywintypes.error as e: logfunc('Exception=>'+str(e)) if NUM_RETRIES/3 < retry_count: bWriteShare = True time.sleep(TIMEOUT / float(NUM_RETRIES)) else: raise RuntimeError("Couldn't open handle for %s." % path)
Example #3
Source File: test_win32file.py From ironpython2 with Apache License 2.0 | 6 votes |
def setUp(self): self.watcher_threads = [] self.watcher_thread_changes = [] self.dir_names = [] self.dir_handles = [] for i in range(self.num_test_dirs): td = tempfile.mktemp("-test-directory-changes-%d" % i) os.mkdir(td) self.dir_names.append(td) hdir = win32file.CreateFile(td, ntsecuritycon.FILE_LIST_DIRECTORY, win32con.FILE_SHARE_READ, None, # security desc win32con.OPEN_EXISTING, win32con.FILE_FLAG_BACKUP_SEMANTICS | win32con.FILE_FLAG_OVERLAPPED, None) self.dir_handles.append(hdir) changes = [] t = threading.Thread(target=self._watcherThreadOverlapped, args=(td, hdir, changes)) t.start() self.watcher_threads.append(t) self.watcher_thread_changes.append(changes)
Example #4
Source File: dirmon.py From dragonfly with GNU Lesser General Public License v3.0 | 6 votes |
def __init__(self, path): if not isinstance(path, basestring): raise TypeError("Path argument must be a basestring; instead" " received %r" % (path,)) self.path = path self.handle = win32file.CreateFile( self.path, 0x0001, # FILE_LIST_DIRECTORY win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE, None, win32con.OPEN_EXISTING, win32con.FILE_FLAG_BACKUP_SEMANTICS | win32con.FILE_FLAG_OVERLAPPED, None, ) self.overlapped = win32file.OVERLAPPED() self.overlapped.hEvent = win32event.CreateEvent(None, True, 0, None)
Example #5
Source File: HID.py From EventGhost with GNU General Public License v2.0 | 6 votes |
def run(self): #open file/device try: handle = win32file.CreateFile( self.devicePath, win32con.GENERIC_READ | win32con.GENERIC_WRITE, win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE, None, # no security win32con.OPEN_EXISTING, win32con.FILE_ATTRIBUTE_NORMAL | win32con.FILE_FLAG_OVERLAPPED, 0 ) except pywintypes.error as (errno, function, strerror): self.lockObject.release() eg.PrintError(self.text.errorOpen + self.deviceName + " (" + strerror + ")") return
Example #6
Source File: win32.py From multibootusb with GNU General Public License v2.0 | 5 votes |
def findVolumeGuids(): DiskExtent = collections.namedtuple( 'DiskExtent', ['DiskNumber', 'StartingOffset', 'ExtentLength']) Volume = collections.namedtuple( 'Volume', ['Guid', 'MediaType', 'DosDevice', 'Extents']) found = [] h, guid = FindFirstVolume() while h and guid: #print (guid) #print (guid, win32file.GetDriveType(guid), # win32file.QueryDosDevice(guid[4:-1])) hVolume = win32file.CreateFile( guid[:-1], win32con.GENERIC_READ, win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE, None, win32con.OPEN_EXISTING, win32con.FILE_ATTRIBUTE_NORMAL, None) extents = [] driveType = win32file.GetDriveType(guid) if driveType in [win32con.DRIVE_REMOVABLE, win32con.DRIVE_FIXED]: x = win32file.DeviceIoControl( hVolume, winioctlcon.IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, None, 512, None) instream = io.BytesIO(x) numRecords = struct.unpack('<q', instream.read(8))[0] fmt = '<qqq' sz = struct.calcsize(fmt) while 1: b = instream.read(sz) if len(b) < sz: break rec = struct.unpack(fmt, b) extents.append( DiskExtent(*rec) ) vinfo = Volume(guid, driveType, win32file.QueryDosDevice(guid[4:-1]), extents) found.append(vinfo) guid = FindNextVolume(h) return found
Example #7
Source File: test_win32file.py From ironpython2 with Apache License 2.0 | 5 votes |
def testMoreFiles(self): # Create a file in the %TEMP% directory. testName = os.path.join( win32api.GetTempPath(), "win32filetest.dat" ) desiredAccess = win32file.GENERIC_READ | win32file.GENERIC_WRITE # Set a flag to delete the file automatically when it is closed. fileFlags = win32file.FILE_FLAG_DELETE_ON_CLOSE h = win32file.CreateFile( testName, desiredAccess, win32file.FILE_SHARE_READ, None, win32file.CREATE_ALWAYS, fileFlags, 0) # Write a known number of bytes to the file. data = str2bytes("z") * 1025 win32file.WriteFile(h, data) self.failUnless(win32file.GetFileSize(h) == len(data), "WARNING: Written file does not have the same size as the length of the data in it!") # Ensure we can read the data back. win32file.SetFilePointer(h, 0, win32file.FILE_BEGIN) hr, read_data = win32file.ReadFile(h, len(data)+10) # + 10 to get anything extra self.failUnless(hr==0, "Readfile returned %d" % hr) self.failUnless(read_data == data, "Read data is not what we wrote!") # Now truncate the file at 1/2 its existing size. newSize = len(data)//2 win32file.SetFilePointer(h, newSize, win32file.FILE_BEGIN) win32file.SetEndOfFile(h) self.failUnlessEqual(win32file.GetFileSize(h), newSize) # GetFileAttributesEx/GetFileAttributesExW tests. self.failUnlessEqual(win32file.GetFileAttributesEx(testName), win32file.GetFileAttributesExW(testName)) attr, ct, at, wt, size = win32file.GetFileAttributesEx(testName) self.failUnless(size==newSize, "Expected GetFileAttributesEx to return the same size as GetFileSize()") self.failUnless(attr==win32file.GetFileAttributes(testName), "Expected GetFileAttributesEx to return the same attributes as GetFileAttributes") h = None # Close the file by removing the last reference to the handle! self.failUnless(not os.path.isfile(testName), "After closing the file, it still exists!")
Example #8
Source File: runas2daemon.py From pyas2 with GNU General Public License v2.0 | 4 votes |
def windows_event_handler(logger, dir_watch, cond, tasks): ACTIONS = { 1: "Created ", # test for printing results 2: "Deleted ", 3: "Updated ", 4: "Rename from", 5: "Rename to", } FILE_LIST_DIRECTORY = 0x0001 hDir = win32file.CreateFile(dir_watch['path'], # to directory FILE_LIST_DIRECTORY, # access (read/write) mode # share mode: FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE | win32con.FILE_SHARE_DELETE, None, # security descriptor win32con.OPEN_EXISTING, # how to create # file attributes: FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED win32con.FILE_FLAG_BACKUP_SEMANTICS, None, ) # detecting right events is not easy in windows :-( # want to detect: new file, move, drop, rename, write/append to file # only FILE_NOTIFY_CHANGE_LAST_WRITE: copy yes, no move # for rec=True: event that subdirectory itself is updated (for file deletes in dir) while True: results = win32file.ReadDirectoryChangesW(hDir, 8192, # buffer size was 1024, do not want to miss anything False, # recursive win32con.FILE_NOTIFY_CHANGE_FILE_NAME | # ~ win32con.FILE_NOTIFY_CHANGE_DIR_NAME | # ~ win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES | # ~ win32con.FILE_NOTIFY_CHANGE_SIZE | # ~ win32con.FILE_NOTIFY_CHANGE_SECURITY | # ~ win32con.FILE_NOTIFY_CHANGE_CREATION | # ~ win32con.FILE_NOTIFsY_CHANGE_LAST_ACCESS | win32con.FILE_NOTIFY_CHANGE_LAST_WRITE, None, None ) if results: # for each incoming event: place route to run in a set. Main thread takes action. for action, filename in results: pyas2init.logger.debug(u'Event: %(action)s %(filename)s', {'action': ACTIONS.get(action, "Unknown"), 'filename': filename}) for action, filename in results: if action in [1, 3, 5]: # and fnmatch.fnmatch(filename, dir_watch['filemask']): # ~ if dir_watch['rec'] and os.sep in filename: # ~ continue full_filename = os.path.join(dir_watch['path'], filename) if os.path.isfile(full_filename): cond.acquire() tasks.add((dir_watch['organization'], dir_watch['partner'], full_filename)) cond.notify() cond.release() # break #the route is triggered, do not need to trigger more often # end of windows-specific ##############################################
Example #9
Source File: fuctup_comments.py From darkc0de-old-stuff with GNU General Public License v3.0 | 4 votes |
def watchos(): #get path or maintain current path of app FILE_LIST_DIRECTORY = 0x0001 try: path_to_watch = myos.get() or "." except: path_to_watch = "." path_to_watch = os.path.abspath(path_to_watch) textbox.insert(END, "Watching %s at %s" % (path_to_watch, time.asctime()) + "\n\n") # FindFirstChangeNotification sets up a handle for watching # file changes. while 1: hDir = win32file.CreateFile ( path_to_watch, FILE_LIST_DIRECTORY, win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE, None, win32con.OPEN_EXISTING, win32con.FILE_FLAG_BACKUP_SEMANTICS, None ) change_handle = win32file.ReadDirectoryChangesW ( hDir, 1024, True,#Heap Size include_subdirectories, win32con.FILE_NOTIFY_CHANGE_FILE_NAME | win32con.FILE_NOTIFY_CHANGE_DIR_NAME | win32con.FILE_NOTIFY_CHANGE_ATTRIBUTES | win32con.FILE_NOTIFY_CHANGE_SIZE | win32con.FILE_NOTIFY_CHANGE_LAST_WRITE | win32con.FILE_NOTIFY_CHANGE_SECURITY, None, None ) # Loop forever, listing any file changes. The WaitFor... will # time out every half a second allowing for keyboard interrupts # to terminate the loop. ACTIONS = { 1 : "Created", 2 : "Deleted", 3 : "Updated", 4 : "Renamed from something", 5 : "Renamed to something" } results = change_handle for action, files in results: full_filename = os.path.join(path_to_watch, files) theact = ACTIONS.get(action, "Unknown") textbox.insert(END, str(full_filename) + "\t" + str(theact) +"\n")