FM / internal

/usr/include/python3.10/internal

Name	Size	Mode	Actions
pycore_abstract.h	479	0644	edit dl rm
pycore_accu.h	1126	0644	edit dl rm
pycore_asdl.h	2971	0644	edit dl rm
pycore_ast.h	28828	0644	edit dl rm
pycore_ast_state.h	6457	0644	edit dl rm
pycore_atomic.h	16979	0644	edit dl rm
pycore_atomic_funcs.h	2438	0644	edit dl rm
pycore_bitutils.h	5271	0644	edit dl rm
pycore_blocks_output_buffer.h	8688	0644	edit dl rm
pycore_bytes_methods.h	3384	0644	edit dl rm
pycore_call.h	870	0644	edit dl rm
pycore_ceval.h	3484	0644	edit dl rm
pycore_code.h	696	0644	edit dl rm
pycore_compile.h	1045	0644	edit dl rm
pycore_condvar.h	2809	0644	edit dl rm
pycore_context.h	822	0644	edit dl rm
pycore_dtoa.h	646	0644	edit dl rm
pycore_fileutils.h	1704	0644	edit dl rm
pycore_format.h	480	0644	edit dl rm
pycore_gc.h	6859	0644	edit dl rm
pycore_getopt.h	490	0644	edit dl rm
pycore_gil.h	1565	0644	edit dl rm
pycore_hamt.h	3697	0644	edit dl rm
pycore_hashtable.h	4197	0644	edit dl rm
pycore_import.h	346	0644	edit dl rm
pycore_initconfig.h	5625	0644	edit dl rm
pycore_interp.h	9289	0644	edit dl rm
pycore_list.h	350	0644	edit dl rm
pycore_long.h	2589	0644	edit dl rm
pycore_moduleobject.h	1047	0644	edit dl rm
pycore_object.h	5989	0644	edit dl rm
pycore_parser.h	626	0644	edit dl rm
pycore_pathconfig.h	1981	0644	edit dl rm
pycore_pyarena.h	2733	0644	edit dl rm
pycore_pyerrors.h	2314	0644	edit dl rm
pycore_pyhash.h	206	0644	edit dl rm
pycore_pylifecycle.h	4940	0644	edit dl rm
pycore_pymem.h	3211	0644	edit dl rm
pycore_pystate.h	3938	0644	edit dl rm
pycore_runtime.h	4902	0644	edit dl rm
pycore_structseq.h	386	0644	edit dl rm
pycore_symtable.h	5578	0644	edit dl rm
pycore_sysmodule.h	548	0644	edit dl rm
pycore_traceback.h	2970	0644	edit dl rm
pycore_tuple.h	425	0644	edit dl rm
pycore_ucnhash.h	898	0644	edit dl rm
pycore_unionobject.h	629	0644	edit dl rm
pycore_warnings.h	633	0644	edit dl rm

Edit: /usr/include/python3.10/internal/pycore_pymem.h (3211B)

#ifndef Py_INTERNAL_PYMEM_H
#define Py_INTERNAL_PYMEM_H
#ifdef __cplusplus
extern "C" {
#endif

#ifndef Py_BUILD_CORE
#  error "this header requires Py_BUILD_CORE define"
#endif

#include "pymem.h"      // PyMemAllocatorName

/* Set the memory allocator of the specified domain to the default.
   Save the old allocator into *old_alloc if it's non-NULL.
   Return on success, or return -1 if the domain is unknown. */
PyAPI_FUNC(int) _PyMem_SetDefaultAllocator(
    PyMemAllocatorDomain domain,
    PyMemAllocatorEx *old_alloc);

/* Special bytes broadcast into debug memory blocks at appropriate times.
   Strings of these are unlikely to be valid addresses, floats, ints or
   7-bit ASCII.

- PYMEM_CLEANBYTE: clean (newly allocated) memory
   - PYMEM_DEADBYTE dead (newly freed) memory
   - PYMEM_FORBIDDENBYTE: untouchable bytes at each end of a block

Byte patterns 0xCB, 0xDB and 0xFB have been replaced with 0xCD, 0xDD and
   0xFD to use the same values than Windows CRT debug malloc() and free().
   If modified, _PyMem_IsPtrFreed() should be updated as well. */
#define PYMEM_CLEANBYTE      0xCD
#define PYMEM_DEADBYTE       0xDD
#define PYMEM_FORBIDDENBYTE  0xFD

/* Heuristic checking if a pointer value is newly allocated
   (uninitialized), newly freed or NULL (is equal to zero).

The pointer is not dereferenced, only the pointer value is checked.

The heuristic relies on the debug hooks on Python memory allocators which
   fills newly allocated memory with CLEANBYTE (0xCD) and newly freed memory
   with DEADBYTE (0xDD). Detect also "untouchable bytes" marked
   with FORBIDDENBYTE (0xFD). */
static inline int _PyMem_IsPtrFreed(const void *ptr)
{
    uintptr_t value = (uintptr_t)ptr;
#if SIZEOF_VOID_P == 8
    return (value == 0
            || value == (uintptr_t)0xCDCDCDCDCDCDCDCD
            || value == (uintptr_t)0xDDDDDDDDDDDDDDDD
            || value == (uintptr_t)0xFDFDFDFDFDFDFDFD);
#elif SIZEOF_VOID_P == 4
    return (value == 0
            || value == (uintptr_t)0xCDCDCDCD
            || value == (uintptr_t)0xDDDDDDDD
            || value == (uintptr_t)0xFDFDFDFD);
#else
#  error "unknown pointer size"
#endif
}

PyAPI_FUNC(int) _PyMem_GetAllocatorName(
    const char *name,
    PyMemAllocatorName *allocator);

/* Configure the Python memory allocators.
   Pass PYMEM_ALLOCATOR_DEFAULT to use default allocators.
   PYMEM_ALLOCATOR_NOT_SET does nothing. */
PyAPI_FUNC(int) _PyMem_SetupAllocators(PyMemAllocatorName allocator);

struct _PyTraceMalloc_Config {
    /* Module initialized?
       Variable protected by the GIL */
    enum {
        TRACEMALLOC_NOT_INITIALIZED,
        TRACEMALLOC_INITIALIZED,
        TRACEMALLOC_FINALIZED
    } initialized;

/* Is tracemalloc tracing memory allocations?
       Variable protected by the GIL */
    int tracing;

/* limit of the number of frames in a traceback, 1 by default.
       Variable protected by the GIL. */
    int max_nframe;
};

#define _PyTraceMalloc_Config_INIT \
    {.initialized = TRACEMALLOC_NOT_INITIALIZED, \
     .tracing = 0, \
     .max_nframe = 1}

PyAPI_DATA(struct _PyTraceMalloc_Config) _Py_tracemalloc_config;

#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_PYMEM_H */

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