Where Online Learning is simpler!

The C and C++ Include Header Files

/usr/include/python3.12/internal/pycore_dict_state.h


$ cat -n /usr/include/python3.12/internal/pycore_dict_state.h

     1	#ifndef Py_INTERNAL_DICT_STATE_H
     2	#define Py_INTERNAL_DICT_STATE_H
     3	#ifdef __cplusplus
     4	extern "C" {
     5	#endif
     6	
     7	#ifndef Py_BUILD_CORE
     8	#  error "this header requires Py_BUILD_CORE define"
     9	#endif
    10	
    11	
    12	#ifndef WITH_FREELISTS
    13	// without freelists
    14	#  define PyDict_MAXFREELIST 0
    15	#endif
    16	
    17	#ifndef PyDict_MAXFREELIST
    18	#  define PyDict_MAXFREELIST 80
    19	#endif
    20	
    21	#define DICT_MAX_WATCHERS 8
    22	
    23	struct _Py_dict_state {
    24	    /*Global counter used to set ma_version_tag field of dictionary.
    25	     * It is incremented each time that a dictionary is created and each
    26	     * time that a dictionary is modified. */
    27	    uint64_t global_version;
    28	    uint32_t next_keys_version;
    29	
    30	#if PyDict_MAXFREELIST > 0
    31	    /* Dictionary reuse scheme to save calls to malloc and free */
    32	    PyDictObject *free_list[PyDict_MAXFREELIST];
    33	    PyDictKeysObject *keys_free_list[PyDict_MAXFREELIST];
    34	    int numfree;
    35	    int keys_numfree;
    36	#endif
    37	
    38	    PyDict_WatchCallback watchers[DICT_MAX_WATCHERS];
    39	};
    40	
    41	#define _dict_state_INIT \
    42	    { \
    43	        .next_keys_version = 2, \
    44	    }
    45	
    46	
    47	#ifdef __cplusplus
    48	}
    49	#endif
    50	#endif   /* !Py_INTERNAL_DICT_STATE_H */