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Diffstat (limited to 'ltdl/libltdl/lt__private.h')
| -rw-r--r-- | ltdl/libltdl/lt__private.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/ltdl/libltdl/lt__private.h b/ltdl/libltdl/lt__private.h new file mode 100644 index 00000000..f4c4a3d7 --- /dev/null +++ b/ltdl/libltdl/lt__private.h @@ -0,0 +1,149 @@ +/* lt__private.h -- internal apis for libltdl + + Copyright (C) 2004, 2005, 2006, 2007, 2008 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))) + + + +/* --- 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)*/ |