python多線程監控指定目錄

import win32file
import tempfile
import threading
import win32con
import os

dirs=["C:\\WINDOWS\\TEMP",tempfile.gettempdir()]
def start_monitor(path_to_watch):
    h_directory = win32file.CreateFile(path_to_watch, win32con.GENERIC_READ , 
                                  win32con.FILE_SHARE_DELETE|win32con.FILE_SHARE_READ|win32con.FILE_SHARE_WRITE ,
                                  None , win32con.OPEN_EXISTING , win32con.FILE_FLAG_BACKUP_SEMANTICS , None )
    while True:
        try:
            results = win32file.ReadDirectoryChangesW(h_directory,1024, True, 
                                    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)
            for action, filename in results:
                print action
                print filename
        except:
            pass

for path in dirs:
    monitor_thread = threading.Thread(target=start_monitor,args=(path,))
    monitor_thread.start()

python多線程監控指定目錄，主要函數是

win32file.ReadDirectoryChangesW監控目錄變化

ReadDirectoryChangesW(handle, size, bWatchSubtree, dwNotifyFilter, overlapped)

retrieves information describing the changes occurring within a directory.

Parameters

handle : PyHANDLE

Handle to the directory to be monitored. This directory must be opened with the FILE_LIST_DIRECTORY access right.

size : int

Size of the buffer to allocate for the results.

bWatchSubtree : int

Specifies whether the ReadDirectoryChangesW function will monitor the directory or the directory tree. If TRUE is specified, the function monitors the directory tree rooted at the specified directory. If FALSE is specified, the function monitors only the directory specified by the hDirectory parameter.

dwNotifyFilter : int

Specifies filter criteria the function checks to determine if the wait operation has completed. This parameter can be one or more of the FILE_NOTIFY_CHANGE_* values.

overlapped=None : PyOVERLAPPED

An overlapped object. The directory must also be opened with FILE_FLAG_OVERLAPPED.