/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
/*
* This file is part of LibreOffice published API .
*/
#ifndef INCLUDED_OSL_MODULE_H
#define INCLUDED_OSL_MODULE_H
#include "sal/config.h"
#include "rtl/ustring.h"
#include "sal/saldllapi.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef SAL_DLLPREFIX
#define SAL_MODULENAME(name) SAL_DLLPREFIX name SAL_DLLEXTENSION
#else
#define SAL_MODULENAME(name) name SAL_DLLEXTENSION
#endif
#if defined (_WIN32)
#define SAL_MODULENAME_WITH_VERSION(name, version) name version SAL_DLLEXTENSION
#elif defined (SAL_UNX)
#if defined (MACOSX)
#define SAL_MODULENAME_WITH_VERSION(name, version) SAL_DLLPREFIX name ".dylib." version
#else
#define SAL_MODULENAME_WITH_VERSION(name, version) SAL_DLLPREFIX name SAL_DLLEXTENSION "." version
#endif
#endif
#define SAL_LOADMODULE_DEFAULT 0 x00000
#define SAL_LOADMODULE_LAZY 0 x00001
#define SAL_LOADMODULE_NOW 0 x00002
#define SAL_LOADMODULE_GLOBAL 0 x00100
typedef void * oslModule;
/** Generic Function pointer type that will be used as symbol address.
@ see osl_getFunctionSymbol .
@ see osl_getModuleURLFromFunctionAddress .
*/
typedef void ( SAL_CALL *oslGenericFunction )( void );
#ifndef DISABLE_DYNLOADING
/** Load a shared library or module.
@ param [ in ] strModuleName denotes the name of the module to be loaded .
@ param [ in ] nRtldMode denotes the mode .
@ returns NULL if the module could not be loaded , otherwise a handle to the module .
*/
SAL_DLLPUBLIC oslModule SAL_CALL osl_loadModule(rtl_uString *strModuleName, sal_Int32 nRtldMode);
/** Load a shared library or module.
@ param [ in ] pModuleName denotes the name of the module to be loaded .
@ param [ in ] nRtldMode denotes the mode .
@ return NULL if the module could not be loaded , otherwise a handle to the module .
@ since UDK 3 . 6
*/
SAL_DLLPUBLIC oslModule SAL_CALL osl_loadModuleAscii(const char *pModuleName, sal_Int32 nRtldMode);
/** Load a module located relative to some other module.
@ param [ in ] baseModule must point to a function that is part of the code of some loaded module ;
must not be NULL .
@ param [ in ] relativePath a relative URL ; must not be NULL .
@ param [ in ] mode the SAL_LOADMODULE_xxx flags .
@ return a non - NULL handle to the loaded module , or NULL if an error occurred .
@ since UDK 3 . 2 . 8
*/
SAL_DLLPUBLIC oslModule SAL_CALL osl_loadModuleRelative(
oslGenericFunction baseModule, rtl_uString * relativePath, sal_Int32 mode);
/** Load a module located relative to some other module.
@ param [ in ] baseModule must point to a function that is part of the code of some loaded module ;
must not be NULL .
@ param [ in ] relativePath a relative URL containing only ASCII ( 0 x01 - - 7 F ) characters ;
must not be NULL .
@ param [ in ] mode the SAL_LOADMODULE_xxx flags .
@ return a non - NULL handle to the loaded module , or NULL if an error occurred .
@ since LibreOffice 3 . 5
*/
SAL_DLLPUBLIC oslModule SAL_CALL osl_loadModuleRelativeAscii(
oslGenericFunction baseModule, char const * relativePath, sal_Int32 mode);
/* This function is guaranteed not to call into
FullTextEncodingDataSingleton in sal / textenc / textenc . cxx , so can be used
in its implementation without running into circles. */
#endif
/** Retrieve the handle of an already loaded module.
This function can be used to search for a function symbol in the process address space .
Do not use the returned handle as an argument to osl_unloadModule . On Unix platforms ,
pModuleName gets ignored and the special handle RTLD_DEFAULT is returned .
@ param [ in ] pModuleName denotes the name of the module to search for .
@ attention Ignored on Unix .
@ param [ out ] pResult a pointer to a oslModule that is updated with the
requested module handle on success .
@ retval sal_True if the module handle could be retrieved and has been copied to * pResult .
@ retval sal_False if the module has not been loaded yet .
@ see osl_getFunctionSymbol
@ see osl_getAsciiFunctionSymbol
*/
SAL_DLLPUBLIC sal_Bool SAL_CALL osl_getModuleHandle(rtl_uString *pModuleName, oslModule *pResult);
#ifndef DISABLE_DYNLOADING
/** Release the module
*/
SAL_DLLPUBLIC void SAL_CALL osl_unloadModule(oslModule Module);
#endif
/** lookup the specified symbol name.
@ param [ in ] Module the handle of the Module .
@ param [ in ] strSymbolName Name of the function that will be looked up .
@ return address of the symbol or NULL if lookup failed .
@ see osl_getFunctionSymbol
*/
SAL_DLLPUBLIC void * SAL_CALL osl_getSymbol( oslModule Module, rtl_uString *strSymbolName);
/** Lookup the specified function symbol name.
osl_getFunctionSymbol is an alternative function for osl_getSymbol .
Use Function pointer as symbol address to conceal type conversion .
@ param [ in ] Module the handle of the Module .
@ param [ in ] ustrFunctionSymbolName Unicode name of the function that will be looked up .
@ retval function - address on success
@ retval NULL lookup failed or the parameter are invalid
@ see osl_getSymbol
@ see osl_getAsciiFunctionSymbol
*/
SAL_DLLPUBLIC oslGenericFunction SAL_CALL osl_getFunctionSymbol(
oslModule Module, rtl_uString *ustrFunctionSymbolName );
/** Lookup the specified function symbol name.
osl_getAsciiFunctionSymbol is an alternative function for osl_getFunctionSymbol .
It expects the C - style function name string to contain ascii characters only .
@ param Module
[ in ] a module handle as returned by osl_loadModule or osl_getModuleHandle
@ param pSymbol
[ in ] Name of the function that will be looked up .
@ retval function - address on success
@ retval NULL lookup failed or the parameter are invalid
@ see osl_getModuleHandle
@ see osl_getFunctionSymbol
*/
SAL_DLLPUBLIC oslGenericFunction SAL_CALL osl_getAsciiFunctionSymbol(
oslModule Module, const char *pSymbol );
/** Lookup URL of module which is mapped at the specified address.
@ param [ in ] pv specifies an address in the process memory space .
@ param [ out ] pustrURL receives the URL of the module that is mapped at pv .
@ return sal_True on success , sal_False if no module can be found at the specified address .
*/
SAL_DLLPUBLIC sal_Bool SAL_CALL osl_getModuleURLFromAddress(
void *pv, rtl_uString **pustrURL );
/** Lookup URL of module which is mapped at the specified function address.
osl_getModuleURLFromFunctionAddress is an alternative function for osl_getModuleURLFromAddress .
Use Function pointer as symbol address to conceal type conversion .
@ param [ in ] pf function address in oslGenericFunction format .
@ param [ out ] pustrFunctionURL receives the URL of the module that is mapped at pf .
@ retval sal_True on success
@ retval sal_False no module can be found at the specified function address or parameter is somewhat invalid
@ see osl_getModuleURLFromAddress
*/
SAL_DLLPUBLIC sal_Bool SAL_CALL osl_getModuleURLFromFunctionAddress(
oslGenericFunction pf, rtl_uString **pustrFunctionURL );
#ifdef __cplusplus
}
#endif
#endif // INCLUDED_OSL_MODULE_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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