jw-pkg/test/unit/python/jw/pkg/lib/FcCache/Makefile
Jan Lindemann e02f724808
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lib.FcCache: Add a write-through read cache
Add a write-through read cache in front of a file context.

stat() and get() results are cached: stat per (path, follow_symlinks), get
per (path, wd, throw). Successful stats and FileNotFoundErrors are cached;
other errors are re-probed, so a transient transport failure does not
poison the cache. Writes pass through to the wrapped context and drop the
cache entries of the affected paths. The existence and directory checks are
rerouted through the cached stat, so they pay the cache instead of the
wrapped context's own fast path.

warm() fills the stat cache of a set of paths, as file_exists() would stat
them, without following symlinks. If the wrapped context is an exec
context, one host command stats all of the paths; otherwise, one stat per
path runs.

The GNU stat format of ExecContext is lifted to the module constant
STAT_GNU_FORMAT, and the field parser is exported as parse_stat_fields(),
so warm() fills entries that are indistinguishable from a real stat().

Assisted-by: unsloth/Qwen3.8-27B-GGUF:Q4_K_M with pi.dev v1.1.0
Signed-off-by: Jan Lindemann <jan@janware.com>
2026-10-17 12:17:21 +02:00

7 lines
111 B
Makefile

TOPDIR = ../../../../../../..
include $(TOPDIR)/make/proj.mk
include $(JWBDIR)/make/py-run.mk
all:
test: run