Skip to content

Optimize scan_memory_for_exact_value #18

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
JeanExtreme002 merged 3 commits into from
Dec 28, 2025
Merged

Optimize scan_memory_for_exact_value #18

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
799be7d
Optimize scan_memory_for_exact_value
BonePolk Nov 1, 2025
37bd439
rollback line comments
JeanExtreme002 Dec 28, 2025
a66aaaf
improve function string doc
JeanExtreme002 Dec 28, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 8 additions & 7 deletions PyMemoryEditor/util/scan.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -21,20 +21,21 @@ def scan_memory_for_exact_value(

This method uses an efficient searching algorithm.
"""
searcher = KMPSearch(target_value, target_value_size)
data = bytes(memory_region_data)
last_index = 0
found_index = data.find(target_value, 0)

for found_index in searcher.search(memory_region_data, memory_region_data_size):

while found_index != -1:
# Return the found index if user is searching for an exact value.
if comparison is ScanTypesEnum.EXACT_VALUE:
yield found_index
continue

# Return the interval between last_index and found_address, if user is searching for a different value.
for different_index in range(last_index, found_index):
yield different_index
last_index = found_index + 1
elif comparison is ScanTypesEnum.NOT_EXACT_VALUE:
for different_index in range(last_index, found_index):
yield different_index
last_index = found_index + 1
found_index = data.find(target_value, found_index+1)

# If user is searching for a different value, return the rest of the addresses that were not found.
if comparison is ScanTypesEnum.NOT_EXACT_VALUE:
Expand Down