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/* -*- 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 0x00000
#define SAL_LOADMODULE_LAZY 0x00001
#define SAL_LOADMODULE_NOW 0x00002
#define SAL_LOADMODULE_GLOBAL 0x00100
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 (0x01--7F) 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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