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/* lt__private.h -- internal apis for libltdl
Copyright (C) 2004-2008, 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.
This library 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 con 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__PRIVATE_H
#define LT__PRIVATE_H 1
#if defined LT_CONFIG_H
# include LT_CONFIG_H
#else
# include <config.h>
#endif
#include <stdio.h>
#include <ctype.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
#if defined HAVE_UNISTD_H
# include <unistd.h>
#endif
/* Import internal interfaces... */
#include "lt__alloc.h"
#include "lt__dirent.h"
#include "lt__strl.h"
#include "lt__glibc.h"
/* ...and all exported interfaces. */
#include "ltdl.h"
#if defined WITH_DMALLOC
# include <dmalloc.h>
#endif
/* DLL building support on win32 hosts; mostly to workaround their
ridiculous implementation of data symbol exporting. */
#ifndef LT_GLOBAL_DATA
# if defined __WINDOWS__ || defined __CYGWIN__
# if defined DLL_EXPORT /* defined by libtool (if required) */
# define LT_GLOBAL_DATA __declspec(dllexport)
# endif
# endif
# ifndef LT_GLOBAL_DATA
# define LT_GLOBAL_DATA /* static linking or !__WINDOWS__ */
# endif
#endif
#ifndef __attribute__
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
# define __attribute__(x)
# endif
#endif
#ifndef LT__UNUSED
# define LT__UNUSED __attribute__ ((__unused__))
#endif
LT_BEGIN_C_DECLS
#if !defined errno
extern int errno;
#endif
LT_SCOPE void lt__alloc_die_callback (void);
/* For readability: */
#define STRNEQ(s1, s2) (strcmp((s1), (s2)) != 0)
#define STREQ(s1, s2) (strcmp((s1), (s2)) == 0)
/* --- OPAQUE STRUCTURES DECLARED IN LTDL.H --- */
/* This type is used for the array of interface data sets in each handler. */
typedef struct {
lt_dlinterface_id key;
void * data;
} lt_interface_data;
struct lt__handle {
lt_dlhandle next;
const lt_dlvtable * vtable; /* dlopening interface */
lt_dlinfo info; /* user visible fields */
int depcount; /* number of dependencies */
lt_dlhandle * deplibs; /* dependencies */
lt_module module; /* system module handle */
void * system; /* system specific data */
lt_interface_data * interface_data; /* per caller associated data */
int flags; /* various boolean stats */
};
struct lt__advise {
unsigned int try_ext:1; /* try system library extensions. */
unsigned int is_resident:1; /* module can't be unloaded. */
unsigned int is_symglobal:1; /* module symbols can satisfy
subsequently loaded modules. */
unsigned int is_symlocal:1; /* module symbols are only available
locally. */
unsigned int try_preload_only:1;/* only preloaded modules will be tried. */
};
/* --- ERROR HANDLING --- */
/* Extract the diagnostic strings from the error table macro in the same
order as the enumerated indices in lt_error.h. */
#define LT__STRERROR(name) lt__error_string(LT_CONC(LT_ERROR_,name))
#define LT__GETERROR(lvalue) (lvalue) = lt__get_last_error()
#define LT__SETERRORSTR(errormsg) lt__set_last_error(errormsg)
#define LT__SETERROR(errorcode) LT__SETERRORSTR(LT__STRERROR(errorcode))
LT_SCOPE const char *lt__error_string (int errorcode);
LT_SCOPE const char *lt__get_last_error (void);
LT_SCOPE const char *lt__set_last_error (const char *errormsg);
LT_END_C_DECLS
#endif /*!defined LT__PRIVATE_H*/
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