64 Bit system technological process

Monitoring the file system

# -*- coding: utf-8 -*-
import os
import sys
import win32file
import win32con
ACTIONS = {

1 : "Created",
2 : "Deleted",
3 : "Updated",
4 : "Renamed from something",
5 : "Renamed to something"
}
# Thanks to Claudio Grondi for the correct set of numbers
FILE_LIST_DIRECTORY = 0x0001
if __name__ == '__main__':
path_to_watch = "."
if len(sys.argv) == 2:
path_to_watch = sys.argv[1]
hDir = win32file.CreateFile (
path_to_watch,
FILE_LIST_DIRECTORY,
win32con.FILE_SHARE_READ | win32con.FILE_SHARE_WRITE | win32con.FILE_SHARE_DELETE,
None,
win32con.OPEN_EXISTING,
win32con.FILE_FLAG_BACKUP_SEMANTICS,
None
)
while 1:
#
# ReadDirectoryChangesW takes a previously-created
# handle to a directory, a buffer size for results,
# a flag to indicate whether to watch subtrees and
# a filter of what changes to notify.
#
# NB Tim Juchcinski reports that he needed to up
# the buffer size to be sure of picking up all
# events when a large number of files were
# deleted at once.
#
results = win32file.ReadDirectoryChangesW (
hDir,
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,
None
)
for action, file in results:
full_filename = os.path.join (path_to_watch, file)
print full_filename, ACTIONS.get (action, "Unknown")

Access to the target application framework

When starting the target application , Invoke this script .

Script layer

Every time the file system changes, the transit data file will be written （ The Conduit ）

Target application layer

Every once in a while , The target application reads all transfer data in the file , Then clear the data .
Then the read data is processed line by line .
Release the old source file first , Then hot update the source file .

Methods that do not block the current process os.system(“start python …”)

32 Bit system technological process

download pyinotify support library

pyinotify Source warehouse

Install support library

python setup.py install

win64 This library is not supported , Yes