Mercurial > cpython-lru_cache-weakref
view Python/pyfpe.c @ 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 | 2dea40e40d9d |
| children |
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#include "pyconfig.h" #include "pyfpe.h" /* * The signal handler for SIGFPE is actually declared in an external * module fpectl, or as preferred by the user. These variable * definitions are required in order to compile Python without * getting missing externals, but to actually handle SIGFPE requires * defining a handler and enabling generation of SIGFPE. */ #ifdef WANT_SIGFPE_HANDLER jmp_buf PyFPE_jbuf; int PyFPE_counter = 0; #endif /* Have this outside the above #ifdef, since some picky ANSI compilers issue a warning when compiling an empty file. */ double PyFPE_dummy(void *dummy) { return 1.0; }
