Mercurial > cpython-lru_cache-weakref
view Modules/ld_so_beos @ 87690:66c1c9f32567 default tip
Add use_weakref option to functools.lru_cache
The use_weakref option makes lru_cache create weak references to the function
arguments when creating the cache key, which prevents them from staying in the
memory forever even after all other references to them are gone.
This is a proof of concept for http://bugs.python.org/issue19859
| author | Radomir Dopieralski <devel@sheep.art.pl> |
|---|---|
| date | Tue, 03 Dec 2013 16:02:48 +0100 |
| parents | 1c6ba946d8fa |
| children |
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#! /bin/sh # # linkmodule for Python # Chris Herborth (chrish@qnx.com) # # This is covered by the same copyright/licensing terms as the rest of # Python. # # Shell script to build shared library versions of the modules; since # the change to the *ahem* "proper" import/export mechanism, this script # is much simpler. It handles PowerPC and x86, too. # # This is called by the Modules/Makefile as $(LDSHARED): # # $(LDSHARED) foomodule.o -o foomodule$(SO) # # Could also be called as: # # $(LDSHARED) readline.o -L/boot/home/config/lib -lreadline -ltermcap \ # -o readline$(SO) # # so we need to preserve the arguments, sort of. # Make sure we got reasonable arguments. TARGET="" ARGS="" while [ "$#" != "0" ]; do case "$1" in -o) TARGET="$2"; shift; shift;; *) ARGS="$ARGS $1"; shift;; esac done if [ "$TARGET" = "" ] ; then echo "Usage:" echo echo " $0 [args] -o foomodule.so [args] foomodule.o [args]" echo echo "Where:" echo echo " [args] normal compiler arguments" exit 1 fi # The shared libraries and glue objects we need to link against; these # libs are overkill for most of the standard modules, but it makes life # in this shell script easier. LIBS="-lbe -lnet -lroot" case $BE_HOST_CPU in ppc) # Boy, do we need a lot of crap... GLUE_LOC=/boot/develop/lib/ppc GLUE="${GLUE_LOC}/glue-noinit.a ${GLUE_LOC}/init_term_dyn.o" case $(uname -r) in 4.0*) CC="mwcc -xms -export pragma -nodup" ;; *) CC="mwcc -shared -export pragma -nodup" ;; esac ;; x86) # We don't need as much crap here... GLUE="" CC="gcc -nostart -Wl,-soname=${TARGET}" ;; *) # What the?!? echo "$0 doesn't support $BE_HOST_CPU systems..." echo "You're on your own... I'd be surprised if this works." GLUE="" CC="cc" ;; esac # Now link that shared lib... $CC -o $TARGET $ARGS $GLUE $LIBS
