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| author | Eric Snow <ericsnowcurrently@gmail.com> | 2022-11-11 16:30:46 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-11-11 16:30:46 -0700 |
| commit | 67807cfc87135fdce4992d38d2ffe3e44747e73b (patch) | |
| tree | c6723686f91afa7963e1ac72729a417f2067f7f9 /Include/internal/pycore_obmalloc_init.h | |
| parent | 55c96e8053689c29ae28a9d2117ae37934eace68 (diff) | |
| download | cpython-git-67807cfc87135fdce4992d38d2ffe3e44747e73b.tar.gz | |
gh-81057: Move the Allocators to _PyRuntimeState (gh-99217)
The global allocators were stored in 3 static global variables: _PyMem_Raw, _PyMem, and _PyObject. State for the "small block" allocator was stored in another 13. That makes a total of 16 global variables. We are moving all 16 to the _PyRuntimeState struct as part of the work for gh-81057. (If PEP 684 is accepted then we will follow up by moving them all to PyInterpreterState.)
https://github.com/python/cpython/issues/81057
Diffstat (limited to 'Include/internal/pycore_obmalloc_init.h')
| -rw-r--r-- | Include/internal/pycore_obmalloc_init.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/Include/internal/pycore_obmalloc_init.h b/Include/internal/pycore_obmalloc_init.h new file mode 100644 index 0000000000..c0fb057d06 --- /dev/null +++ b/Include/internal/pycore_obmalloc_init.h @@ -0,0 +1,68 @@ +#ifndef Py_INTERNAL_OBMALLOC_INIT_H +#define Py_INTERNAL_OBMALLOC_INIT_H +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef Py_BUILD_CORE +# error "this header requires Py_BUILD_CORE define" +#endif + + +/****************************************************/ +/* the default object allocator's state initializer */ + +#define PTA(pools, x) \ + ((poolp )((uint8_t *)&(pools.used[2*(x)]) - 2*sizeof(pymem_block *))) +#define PT(p, x) PTA(p, x), PTA(p, x) + +#define PT_8(p, start) \ + PT(p, start), \ + PT(p, start+1), \ + PT(p, start+2), \ + PT(p, start+3), \ + PT(p, start+4), \ + PT(p, start+5), \ + PT(p, start+6), \ + PT(p, start+7) + +#if NB_SMALL_SIZE_CLASSES <= 8 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0) } +#elif NB_SMALL_SIZE_CLASSES <= 16 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0), PT_8(p, 8) } +#elif NB_SMALL_SIZE_CLASSES <= 24 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0), PT_8(p, 8), PT_8(p, 16) } +#elif NB_SMALL_SIZE_CLASSES <= 32 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0), PT_8(p, 8), PT_8(p, 16), PT_8(p, 24) } +#elif NB_SMALL_SIZE_CLASSES <= 40 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0), PT_8(p, 8), PT_8(p, 16), PT_8(p, 24), PT_8(p, 32) } +#elif NB_SMALL_SIZE_CLASSES <= 48 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0), PT_8(p, 8), PT_8(p, 16), PT_8(p, 24), PT_8(p, 32), PT_8(p, 40) } +#elif NB_SMALL_SIZE_CLASSES <= 56 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0), PT_8(p, 8), PT_8(p, 16), PT_8(p, 24), PT_8(p, 32), PT_8(p, 40), PT_8(p, 48) } +#elif NB_SMALL_SIZE_CLASSES <= 64 +# define _obmalloc_pools_INIT(p) \ + { PT_8(p, 0), PT_8(p, 8), PT_8(p, 16), PT_8(p, 24), PT_8(p, 32), PT_8(p, 40), PT_8(p, 48), PT_8(p, 56) } +#else +# error "NB_SMALL_SIZE_CLASSES should be less than 64" +#endif + +#define _obmalloc_state_INIT(obmalloc) \ + { \ + .pools = { \ + .used = _obmalloc_pools_INIT(obmalloc.pools), \ + }, \ + } + + +#ifdef __cplusplus +} +#endif +#endif // !Py_INTERNAL_OBMALLOC_INIT_H |