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., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA
+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 */
+#include <sys/types.h> /* for size_t declaration */
\f
/* --- MACROS FOR PORTABILITY --- */
/* Saves on those hard to debug '\0' typos.... */
-#define LT_EOS_CHAR '\0'
+#define LT_EOS_CHAR '\0'
/* 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 }
+# 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 */
+# define LT_BEGIN_C_DECLS /* empty */
+# define LT_END_C_DECLS /* empty */
#endif
LT_BEGIN_C_DECLS
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*
+# define LT_PARAMS(protos) protos
+# define lt_ptr void*
#else
-# define LT_PARAMS(protos) ()
-# define lt_ptr char*
+# define LT_PARAMS(protos) ()
+# define lt_ptr char*
#endif
/* LT_STMT_START/END are used to create macros which expand to a
/* 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
+# define LT_CONC(s,t) s##t
#else
-# define LT_CONC(s,t) s/**/t
+# define LT_CONC(s,t) s/**/t
#endif
/* LT_STRLEN can be used safely on NULL pointers. */
-#define LT_STRLEN(s) (((s) && (s)[0]) ? strlen (s) : 0)
+#define LT_STRLEN(s) (((s) && (s)[0]) ? strlen (s) : 0)
\f
# 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 ';'
+# define LT_DIRSEP_CHAR '\\'
+# define LT_PATHSEP_CHAR ';'
# endif
#endif
#ifndef LT_PATHSEP_CHAR
-# define 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)
+# 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)
+# 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
+# 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. */
+typedef struct lt_dlhandle_struct *lt_dlhandle; /* A loaded module. */
/* Initialisation and finalisation functions for libltdl. */
-LT_SCOPE int lt_dlinit LT_PARAMS((void));
-LT_SCOPE int lt_dlexit LT_PARAMS((void));
+LT_SCOPE int lt_dlinit LT_PARAMS((void));
+LT_SCOPE int lt_dlexit LT_PARAMS((void));
/* Module search path manipulation. */
-LT_SCOPE int lt_dladdsearchdir LT_PARAMS((const char *search_dir));
-LT_SCOPE int lt_dlinsertsearchdir LT_PARAMS((const char *before,
- const char *search_dir));
-LT_SCOPE int lt_dlsetsearchpath LT_PARAMS((const char *search_path));
-LT_SCOPE const char *lt_dlgetsearchpath LT_PARAMS((void));
-LT_SCOPE int lt_dlforeachfile LT_PARAMS((
- const char *search_path,
- int (*func) (const char *filename, lt_ptr data),
- lt_ptr data));
+LT_SCOPE int lt_dladdsearchdir LT_PARAMS((const char *search_dir));
+LT_SCOPE int lt_dlinsertsearchdir LT_PARAMS((const char *before,
+ const char *search_dir));
+LT_SCOPE int lt_dlsetsearchpath LT_PARAMS((const char *search_path));
+LT_SCOPE const char *lt_dlgetsearchpath LT_PARAMS((void));
+LT_SCOPE int lt_dlforeachfile LT_PARAMS((
+ const char *search_path,
+ int (*func) (const char *filename, lt_ptr data),
+ lt_ptr data));
/* 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));
+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));
+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 *errmsg));
-typedef const char *lt_dlmutex_geterror LT_PARAMS((void));
+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 *errmsg));
+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));
+LT_SCOPE int lt_dlmutex_register LT_PARAMS((lt_dlmutex_lock *lock,
+ lt_dlmutex_unlock *unlock,
+ lt_dlmutex_seterror *seterror,
+ lt_dlmutex_geterror *geterror));
libltdl relies on a featureful realloc, but if you are sure yours
has the right semantics then you can assign it directly. Generally,
it is safe to assign just a malloc() and a free() function. */
-LT_SCOPE lt_ptr (*lt_dlmalloc) LT_PARAMS((size_t size));
-LT_SCOPE lt_ptr (*lt_dlrealloc) LT_PARAMS((lt_ptr ptr, size_t size));
-LT_SCOPE void (*lt_dlfree) LT_PARAMS((lt_ptr ptr));
+LT_SCOPE lt_ptr (*lt_dlmalloc) LT_PARAMS((size_t size));
+LT_SCOPE lt_ptr (*lt_dlrealloc) LT_PARAMS((lt_ptr ptr, size_t size));
+LT_SCOPE void (*lt_dlfree) LT_PARAMS((lt_ptr ptr));
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));
+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{ \
- extern const lt_dlsymlist lt_preloaded_symbols[]; \
- lt_dlpreload_default(lt_preloaded_symbols); \
- }LT_STMT_END
+#define LTDL_SET_PRELOADED_SYMBOLS() LT_STMT_START{ \
+ extern const lt_dlsymlist lt_preloaded_symbols[]; \
+ lt_dlpreload_default(lt_preloaded_symbols); \
+ }LT_STMT_END
/* 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. */
+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));
+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));
+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));
\f
/* --- USER MODULE LOADER API --- */
-typedef struct lt_dlloader lt_dlloader;
-typedef lt_ptr lt_user_data;
-typedef lt_ptr lt_module;
+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));
+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;
+ const char *sym_prefix;
lt_module_open *module_open;
lt_module_close *module_close;
- lt_find_sym *find_sym;
+ lt_find_sym *find_sym;
lt_dlloader_exit *dlloader_exit;
- lt_user_data dlloader_data;
+ 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));
+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));
\f
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") \
+#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") \
- LT_ERROR(INVALID_POSITION, "invalid search path insert position")
+ LT_ERROR(INVALID_POSITION, "invalid search path insert position")
/* Enumerate the symbolic error names. */
enum {
-#define LT_ERROR(name, diagnostic) LT_CONC(LT_ERROR_, name),
- lt_dlerror_table
+#define LT_ERROR(name, diagnostic) LT_CONC(LT_ERROR_, name),
+ lt_dlerror_table
#undef LT_ERROR
- LT_ERROR_MAX
+ 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));
+LT_SCOPE int lt_dladderror LT_PARAMS((const char *diagnostic));
+LT_SCOPE int lt_dlseterror LT_PARAMS((int errorcode));
#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
+# 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
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