open mmap with ACCESS_READ

This commit is contained in:
geospatial-jeff
2023-05-28 09:41:08 -06:00
parent 9c7f298fb4
commit c9e0c9d019

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@@ -12,7 +12,7 @@ import gzip
def MmapSource(f):
mapping = mmap.mmap(f.fileno(), 0)
mapping = mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ)
def get_bytes(offset, length):
return mapping[offset : offset + length]