Platform and limits#

The public API is cross-platform, but native memory mapping is necessarily platform-sensitive.

• file offsets commonly need page alignment;

• executable mappings may be restricted by platform policy;

• locking pages can fail because of process or system limits;

• mapping a file beyond its valid extent is not a portable data-growth strategy; and

• this package is a compiled extension and therefore needs a compatible build for the target Python/platform.

scikitplot.memmap consumes the shared mman.h owned by the independent Annoy C-external subsystem. That shared native header is not part of the memmap user API and should not be copied or patched as an application workaround.