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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/* lt_dlloader.h -- dynamic library loader interface
Copyright (C) 2004, 2007-2008, 2011-2015 Free Software Foundation,
Inc.
Written by Gary V. Vaughan, 2004
NOTE: The canonical source of this file is maintained with the
GNU Libtool package. Report bugs to bug-libtool@gnu.org.
GNU Libltdl is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
As a special exception to the GNU Lesser General Public License,
if you distribute this file as part of a program or library that
is built using GNU Libtool, you may include this file under the
same distribution terms that you use for the rest of that program.
GNU Libltdl is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with GNU Libltdl; see the file COPYING.LIB. If not, a
copy can be downloaded from http://www.gnu.org/licenses/lgpl.html,
or obtained by writing to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#if !defined LT_DLLOADER_H
#define LT_DLLOADER_H 1
#include <libltdl/lt_system.h>
LT_BEGIN_C_DECLS
typedef void * lt_dlloader;
typedef void * lt_module;
typedef void * lt_user_data;
typedef struct lt__advise * lt_dladvise;
/* Function pointer types for module loader vtable entries: */
typedef lt_module lt_module_open (lt_user_data data,
const char *filename,
lt_dladvise advise);
typedef int lt_module_close (lt_user_data data,
lt_module module);
typedef void * lt_find_sym (lt_user_data data, lt_module module,
const char *symbolname);
typedef int lt_dlloader_init (lt_user_data data);
typedef int lt_dlloader_exit (lt_user_data data);
/* Default priority is LT_DLLOADER_PREPEND if none is explicitly given. */
typedef enum {
LT_DLLOADER_PREPEND = 0, LT_DLLOADER_APPEND
} lt_dlloader_priority;
/* This structure defines a module loader, as populated by the get_vtable
entry point of each loader. */
typedef struct {
const char * name;
const char * sym_prefix;
lt_module_open * module_open;
lt_module_close * module_close;
lt_find_sym * find_sym;
lt_dlloader_init * dlloader_init;
lt_dlloader_exit * dlloader_exit;
lt_user_data dlloader_data;
lt_dlloader_priority priority;
} lt_dlvtable;
LT_SCOPE int lt_dlloader_add (const lt_dlvtable *vtable);
LT_SCOPE lt_dlloader lt_dlloader_next (const lt_dlloader loader);
LT_SCOPE lt_dlvtable * lt_dlloader_remove (const char *name);
LT_SCOPE const lt_dlvtable *lt_dlloader_find (const char *name);
LT_SCOPE const lt_dlvtable *lt_dlloader_get (lt_dlloader loader);
/* Type of a function to get a loader's vtable: */
typedef const lt_dlvtable *lt_get_vtable (lt_user_data data);
#ifdef LT_DEBUG_LOADERS
LT_SCOPE void lt_dlloader_dump (void);
#endif
LT_END_C_DECLS
#endif /*!defined LT_DLLOADER_H*/