diff options
Diffstat (limited to 'libltdl/ltdl.h')
m--------- | libltdl | 0 | ||||
-rw-r--r-- | libltdl/ltdl.h | 348 |
2 files changed, 0 insertions, 348 deletions
diff --git a/libltdl b/libltdl new file mode 160000 +Subproject 6d6796c294ca6e9b7f83c295217817c4bf48603 diff --git a/libltdl/ltdl.h b/libltdl/ltdl.h deleted file mode 100644 index 29ecb2e2a..000000000 --- a/libltdl/ltdl.h +++ /dev/null @@ -1,348 +0,0 @@ -/* ltdl.h -- generic dlopen functions - Copyright (C) 1998-2000 Free Software Foundation, Inc. - Originally by Thomas Tanner <tanner@ffii.org> - This file is part of GNU Libtool. - -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 it under the same -distribution terms that you use for the rest of that program. - -This library 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 this library; if not, write to the Free -Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA -*/ - -/* Only include this header file once. */ -#ifndef LTDL_H -#define LTDL_H 1 - -#include <sys/types.h> /* for size_t declaration */ - - -/* --- MACROS FOR PORTABILITY --- */ - - -/* LTDL_BEGIN_C_DECLS should be used at the beginning of your declarations, - so that C++ compilers don't mangle their names. Use LTDL_END_C_DECLS at - the end of C declarations. */ -#ifdef __cplusplus -# define LT_BEGIN_C_DECLS extern "C" { -# define LT_END_C_DECLS } -#else -# define LT_BEGIN_C_DECLS /* empty */ -# define LT_END_C_DECLS /* empty */ -#endif - -LT_BEGIN_C_DECLS - - -/* LT_PARAMS is a macro used to wrap function prototypes, so that compilers - that don't understand ANSI C prototypes still work, and ANSI C - compilers can issue warnings about type mismatches. */ -#if defined (__STDC__) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(WIN32) || defined(__cplusplus) -# define LT_PARAMS(protos) protos -# define lt_ptr void* -#else -# define LT_PARAMS(protos) () -# define lt_ptr char* -#endif - -/* LT_STMT_START/END are used to create macros which expand to a - a single compound statement in a portable way. */ -#if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus) -# define LT_STMT_START (void)( -# define LT_STMT_END ) -#else -# if (defined (sun) || defined (__sun__)) -# define LT_STMT_START if (1) -# define LT_STMT_END else (void)0 -# else -# define LT_STMT_START do -# define LT_STMT_END while (0) -# endif -#endif - -/* LT_CONC creates a new concatenated symbol for the compiler - in a portable way. */ -#if defined(__STDC__) || defined(__cplusplus) || defined(_MSC_VER) -# define LT_CONC(s,t) s##t -#else -# define LT_CONC(s,t) s/**/t -#endif - - - - -/* --- WINDOWS SUPPORT --- */ - - -/* Canonicalise Windows and Cygwin recognition macros. */ -#ifdef __CYGWIN32__ -# ifndef __CYGWIN__ -# define __CYGWIN__ __CYGWIN32__ -# endif -#endif -#if defined(_WIN32) || defined(WIN32) -# ifndef __WINDOWS__ -# ifdef _WIN32 -# define __WINDOWS__ _WIN32 -# else -# ifdef WIN32 -# define __WINDOWS__ WIN32 -# endif -# endif -# endif -#endif - -#ifdef __WINDOWS__ -# ifndef __CYGWIN__ -/* LT_DIRSEP_CHAR is accepted *in addition* to '/' as a directory - separator when it is set. */ -# define LT_DIRSEP_CHAR '\\' -# define LT_PATHSEP_CHAR ';' -# endif -#endif -#ifndef LT_PATHSEP_CHAR -# define LT_PATHSEP_CHAR ':' -#endif - -/* DLL building support on win32 hosts; mostly to workaround their - ridiculous implementation of data symbol exporting. */ -#ifndef LT_SCOPE -# ifdef __WINDOWS__ -# ifdef DLL_EXPORT /* defined by libtool (if required) */ -# define LT_SCOPE __declspec(dllexport) -# endif -# ifdef LIBLTDL_DLL_IMPORT /* define if linking with this dll */ -# define LT_SCOPE extern __declspec(dllimport) -# endif -# endif -# ifndef LT_SCOPE /* static linking or !__WINDOWS__ */ -# define LT_SCOPE extern -# endif -#endif - - - - -/* --- DYNAMIC MODULE LOADING API --- */ - -typedef struct lt_dlhandle_struct *lt_dlhandle; /* A loaded module. */ - -LT_SCOPE int lt_dlopen_flag; - -/* Initialisation and finalisation functions for libltdl. */ -LT_SCOPE int lt_dlinit LT_PARAMS((void)); -LT_SCOPE int lt_dlexit LT_PARAMS((void)); - -/* Module search path manipultation. */ -LT_SCOPE int lt_dladdsearchdir LT_PARAMS((const char *search_dir)); -LT_SCOPE int lt_dlsetsearchpath LT_PARAMS((const char *search_path)); -LT_SCOPE const char *lt_dlgetsearchpath LT_PARAMS((void)); - -/* Portable libltdl versions of the system dlopen() API. */ -LT_SCOPE lt_dlhandle lt_dlopen LT_PARAMS((const char *filename)); -LT_SCOPE lt_dlhandle lt_dlopenext LT_PARAMS((const char *filename)); -LT_SCOPE lt_ptr lt_dlsym LT_PARAMS((lt_dlhandle handle, - const char *name)); -LT_SCOPE const char *lt_dlerror LT_PARAMS((void)); -LT_SCOPE int lt_dlclose LT_PARAMS((lt_dlhandle handle)); - -/* Module residency management. */ -LT_SCOPE int lt_dlmakeresident LT_PARAMS((lt_dlhandle handle)); -LT_SCOPE int lt_dlisresident LT_PARAMS((lt_dlhandle handle)); - - - - -/* --- MUTEX LOCKING --- */ - - -typedef void lt_dlmutex_lock LT_PARAMS((void)); -typedef void lt_dlmutex_unlock LT_PARAMS((void)); -typedef void lt_dlmutex_seterror LT_PARAMS((const char *error)); -typedef const char *lt_dlmutex_geterror LT_PARAMS((void)); - -LT_SCOPE int lt_dlmutex_register LT_PARAMS((lt_dlmutex_lock *lock, - lt_dlmutex_unlock *unlock, - lt_dlmutex_seterror *seterror, - lt_dlmutex_geterror *geterror)); - - - - -/* --- MEMORY HANDLING --- */ - - -/* Pointers to memory management functions to be used by libltdl. */ -LT_SCOPE lt_ptr (*lt_dlmalloc) LT_PARAMS((size_t size)); -LT_SCOPE void (*lt_dlfree) LT_PARAMS((lt_ptr ptr)); - - - - -/* --- PRELOADED MODULE SUPPORT --- */ - - -/* A preopened symbol. Arrays of this type comprise the exported - symbols for a dlpreopened module. */ -typedef struct { - const char *name; - lt_ptr address; -} lt_dlsymlist; - -LT_SCOPE int lt_dlpreload LT_PARAMS((const lt_dlsymlist *preloaded)); -LT_SCOPE int lt_dlpreload_default - LT_PARAMS((const lt_dlsymlist *preloaded)); - -#define LTDL_SET_PRELOADED_SYMBOLS() LT_STMT_START{ \ - LT_SCOPE const lt_dlsymlist lt_preloaded_symbols[]; \ - lt_dlpreload_default(lt_preloaded_symbols); \ - }LT_STMT_END - - - - -/* --- MODULE INFORMATION --- */ - - -/* Read only information pertaining to a loaded module. */ -typedef struct { - char *filename; /* file name */ - char *name; /* module name */ - int ref_count; /* number of times lt_dlopened minus - number of times lt_dlclosed. */ -} lt_dlinfo; - -LT_SCOPE const lt_dlinfo *lt_dlgetinfo LT_PARAMS((lt_dlhandle handle)); -LT_SCOPE lt_dlhandle lt_dlhandle_next LT_PARAMS((lt_dlhandle place)); -LT_SCOPE int lt_dlforeach LT_PARAMS(( - int (*func) (lt_dlhandle handle, lt_ptr data), - lt_ptr data)); - -/* Associating user data with loaded modules. */ -typedef unsigned lt_dlcaller_id; - -LT_SCOPE lt_dlcaller_id lt_dlcaller_register LT_PARAMS((void)); -LT_SCOPE lt_ptr lt_dlcaller_set_data LT_PARAMS((lt_dlcaller_id key, - lt_dlhandle handle, - lt_ptr data)); -LT_SCOPE lt_ptr lt_dlcaller_get_data LT_PARAMS((lt_dlcaller_id key, - lt_dlhandle handle)); - - - -/* --- USER MODULE LOADER API --- */ - - -typedef struct lt_dlloader lt_dlloader; -typedef lt_ptr lt_user_data; -typedef lt_ptr lt_module; - -/* Function pointer types for creating user defined module loaders. */ -typedef lt_module lt_module_open LT_PARAMS((lt_user_data loader_data, - const char *filename)); -typedef int lt_module_close LT_PARAMS((lt_user_data loader_data, - lt_module handle)); -typedef lt_ptr lt_find_sym LT_PARAMS((lt_user_data loader_data, - lt_module handle, - const char *symbol)); -typedef int lt_dlloader_exit LT_PARAMS((lt_user_data loader_data)); - -struct lt_user_dlloader { - const char *sym_prefix; - lt_module_open *module_open; - lt_module_close *module_close; - lt_find_sym *find_sym; - lt_dlloader_exit *dlloader_exit; - lt_user_data dlloader_data; -}; - -LT_SCOPE lt_dlloader *lt_dlloader_next LT_PARAMS((lt_dlloader *place)); -LT_SCOPE lt_dlloader *lt_dlloader_find LT_PARAMS(( - const char *loader_name)); -LT_SCOPE const char *lt_dlloader_name LT_PARAMS((lt_dlloader *place)); -LT_SCOPE lt_user_data *lt_dlloader_data LT_PARAMS((lt_dlloader *place)); -LT_SCOPE int lt_dlloader_add LT_PARAMS((lt_dlloader *place, - const struct lt_user_dlloader *dlloader, - const char *loader_name)); -LT_SCOPE int lt_dlloader_remove LT_PARAMS(( - const char *loader_name)); - - - -/* --- ERROR MESSAGE HANDLING --- */ - - -/* Defining error strings alongside their symbolic names in a macro in - this way allows us to expand the macro in different contexts with - confidence that the enumeration of symbolic names will map correctly - onto the table of error strings. */ -#define lt_dlerror_table \ - LT_ERROR(UNKNOWN, "unknown error") \ - LT_ERROR(DLOPEN_NOT_SUPPORTED, "dlopen support not available") \ - LT_ERROR(INVALID_LOADER, "invalid loader") \ - LT_ERROR(INIT_LOADER, "loader initialization failed") \ - LT_ERROR(REMOVE_LOADER, "loader removal failed") \ - LT_ERROR(FILE_NOT_FOUND, "file not found") \ - LT_ERROR(DEPLIB_NOT_FOUND, "dependency library not found") \ - LT_ERROR(NO_SYMBOLS, "no symbols defined") \ - LT_ERROR(CANNOT_OPEN, "can't open the module") \ - LT_ERROR(CANNOT_CLOSE, "can't close the module") \ - LT_ERROR(SYMBOL_NOT_FOUND, "symbol not found") \ - LT_ERROR(NO_MEMORY, "not enough memory") \ - LT_ERROR(INVALID_HANDLE, "invalid module handle") \ - LT_ERROR(BUFFER_OVERFLOW, "internal buffer overflow") \ - LT_ERROR(INVALID_ERRORCODE, "invalid errorcode") \ - LT_ERROR(SHUTDOWN, "library already shutdown") \ - LT_ERROR(CLOSE_RESIDENT_MODULE, "can't close resident module") \ - LT_ERROR(INVALID_MUTEX_ARGS, "invalid mutex handler registration") - -/* Enumerate the symbolic error names. */ -enum { -#define LT_ERROR(name, diagnostic) LT_CONC(LT_ERROR_, name), - lt_dlerror_table -#undef LT_ERROR - - LT_ERROR_MAX -}; - -/* These functions are only useful from inside custom module loaders. */ -LT_SCOPE int lt_dladderror LT_PARAMS((const char *diagnostic)); -LT_SCOPE int lt_dlseterror LT_PARAMS((int errorcode)); - - - - -/* For KDE and for now, we want this source compatibility until I get rid - of the exportation of ltdl.h alltogether. (matz@kde.org) */ -#define LT_NON_POSIX_NAMESPACE -/* --- SOURCE COMPATIBILITY WITH OLD LIBLTDL --- */ - - -#ifdef LT_NON_POSIX_NAMESPACE -# define lt_ptr_t lt_ptr -# define lt_module_t lt_module -# define lt_module_open_t lt_module_open -# define lt_module_close_t lt_module_close -# define lt_find_sym_t lt_find_sym -# define lt_dlloader_exit_t lt_dlloader_exit -# define lt_dlloader_t lt_dlloader -# define lt_dlloader_data_t lt_user_data -#endif - -LT_END_C_DECLS - -#endif /* !LTDL_H */ |