晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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#ifndef Py_INTERNAL_MIMALLOC_H
#define Py_INTERNAL_MIMALLOC_H

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

#if defined(MIMALLOC_H) || defined(MIMALLOC_TYPES_H)
#  error "pycore_mimalloc.h must be included before mimalloc.h"
#endif

typedef enum {
    _Py_MIMALLOC_HEAP_MEM = 0,      // PyMem_Malloc() and friends
    _Py_MIMALLOC_HEAP_OBJECT = 1,   // non-GC objects
    _Py_MIMALLOC_HEAP_GC = 2,       // GC objects without pre-header
    _Py_MIMALLOC_HEAP_GC_PRE = 3,   // GC objects with pre-header
    _Py_MIMALLOC_HEAP_COUNT
} _Py_mimalloc_heap_id;

#include "pycore_pymem.h"

#ifdef WITH_MIMALLOC
#  ifdef Py_GIL_DISABLED
#    define MI_PRIM_THREAD_ID   _Py_ThreadId
#  endif
#  define MI_DEBUG_UNINIT     PYMEM_CLEANBYTE
#  define MI_DEBUG_FREED      PYMEM_DEADBYTE
#  define MI_DEBUG_PADDING    PYMEM_FORBIDDENBYTE
#ifdef Py_DEBUG
#  define MI_DEBUG 2
#else
#  define MI_DEBUG 0
#endif

#ifdef _Py_THREAD_SANITIZER
#  define MI_TSAN 1
#endif

#ifdef __cplusplus
extern "C++" {
#endif

#include "mimalloc/mimalloc.h"
#include "mimalloc/mimalloc/types.h"
#include "mimalloc/mimalloc/internal.h"

#ifdef __cplusplus
}
#endif

#endif

#ifdef Py_GIL_DISABLED
struct _mimalloc_interp_state {
    // When exiting, threads place any segments with live blocks in this
    // shared pool for other threads to claim and reuse.
    mi_abandoned_pool_t abandoned_pool;
};

struct _mimalloc_thread_state {
    mi_heap_t *current_object_heap;
    mi_heap_t heaps[_Py_MIMALLOC_HEAP_COUNT];
    mi_tld_t tld;
    int initialized;
    struct llist_node page_list;
};
#endif

#endif // Py_INTERNAL_MIMALLOC_H