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。
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#ifndef MALLOC_CTL_H
# define MALLOC_CTL_H
struct perl_mstats {
UV *nfree;
UV *ntotal;
IV topbucket, topbucket_ev, topbucket_odd, totfree, total, total_chain;
IV total_sbrk, sbrks, sbrk_good, sbrk_slack, start_slack, sbrked_remains;
IV minbucket;
/* Level 1 info */
UV *bucket_mem_size;
UV *bucket_available_size;
UV nbuckets;
};
typedef struct perl_mstats perl_mstats_t;
PERL_CALLCONV Malloc_t Perl_malloc (MEM_SIZE nbytes);
PERL_CALLCONV Malloc_t Perl_calloc (MEM_SIZE elements, MEM_SIZE size);
PERL_CALLCONV Malloc_t Perl_realloc (Malloc_t where, MEM_SIZE nbytes);
/* 'mfree' rather than 'free', since there is already a 'perl_free'
* that causes clashes with case-insensitive linkers */
PERL_CALLCONV Free_t Perl_mfree (Malloc_t where);
#ifndef NO_MALLOC_DYNAMIC_CFG
/* IV configuration data */
enum {
MallocCfg_FIRST_SBRK,
MallocCfg_MIN_SBRK,
MallocCfg_MIN_SBRK_FRAC1000,
MallocCfg_SBRK_ALLOW_FAILURES,
MallocCfg_SBRK_FAILURE_PRICE,
MallocCfg_sbrk_goodness,
MallocCfg_filldead,
MallocCfg_fillalive,
MallocCfg_fillcheck,
MallocCfg_skip_cfg_env,
MallocCfg_cfg_env_read,
MallocCfg_emergency_buffer_size,
MallocCfg_emergency_buffer_last_req,
MallocCfg_emergency_buffer_prepared_size,
MallocCfg_last
};
/* char* configuration data */
enum {
MallocCfgP_emergency_buffer,
MallocCfgP_emergency_buffer_prepared,
MallocCfgP_last
};
START_EXTERN_C
extern IV *MallocCfg_ptr;
extern char **MallocCfgP_ptr;
END_EXTERN_C
#endif
#endif