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Diffstat (limited to '')
| -rw-r--r-- | include/osl/module.h | 230 | ||||
| -rw-r--r-- | include/osl/module.hxx | 178 |
2 files changed, 408 insertions, 0 deletions
diff --git a/include/osl/module.h b/include/osl/module.h new file mode 100644 index 0000000000..9d80d352af --- /dev/null +++ b/include/osl/module.h @@ -0,0 +1,230 @@ +/* -*- 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: */ diff --git a/include/osl/module.hxx b/include/osl/module.hxx new file mode 100644 index 0000000000..37f7e249ee --- /dev/null +++ b/include/osl/module.hxx @@ -0,0 +1,178 @@ +/* -*- 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_HXX +#define INCLUDED_OSL_MODULE_HXX + +#include "sal/config.h" + +#include <cstddef> + +#include "rtl/ustring.hxx" +#include "osl/module.h" + +namespace osl +{ + +class Module +{ + Module( const Module&) SAL_DELETED_FUNCTION; + Module& operator = ( const Module&) SAL_DELETED_FUNCTION; + +public: + static bool getUrlFromAddress(void * addr, ::rtl::OUString & libraryUrl) { + return osl_getModuleURLFromAddress(addr, &libraryUrl.pData); + } + + /** Get module URL from the specified function address in the module. + + Similar to getUrlFromAddress, but use a function address to get URL of the Module. + Use Function pointer as symbol address to conceal type conversion. + + @param[in] addr function address in oslGenericFunction format. + @param[in,out] libraryUrl receives the URL of the module. + + @retval true on success + @retval false can not get the URL from the specified function address or the parameter is invalid. + + @see getUrlFromAddress + */ + static bool getUrlFromAddress( oslGenericFunction addr, ::rtl::OUString & libraryUrl){ + return osl_getModuleURLFromFunctionAddress( addr, &libraryUrl.pData ); + } + + Module(): m_Module(NULL){} + +#ifndef DISABLE_DYNLOADING + + Module( const ::rtl::OUString& strModuleName, sal_Int32 nRtldMode = SAL_LOADMODULE_DEFAULT) : m_Module(NULL) + { + load( strModuleName, nRtldMode); + } + +#endif + + ~Module() + { +#ifndef DISABLE_DYNLOADING + osl_unloadModule(m_Module); +#endif + } + +#ifndef DISABLE_DYNLOADING + + bool SAL_CALL load( const ::rtl::OUString& strModuleName, + sal_Int32 nRtldMode = SAL_LOADMODULE_DEFAULT) + { + unload(); + m_Module= osl_loadModule( strModuleName.pData, nRtldMode ); + return is(); + } + + /// @since UDK 3.2.8 + bool SAL_CALL loadRelative( + ::oslGenericFunction baseModule, ::rtl::OUString const & relativePath, + ::sal_Int32 mode = SAL_LOADMODULE_DEFAULT) + { + unload(); + m_Module = osl_loadModuleRelative(baseModule, relativePath.pData, mode); + return is(); + } + + /// @since LibreOffice 3.5 + bool SAL_CALL loadRelative( + oslGenericFunction baseModule, char const * relativePath, + sal_Int32 mode = SAL_LOADMODULE_DEFAULT) + { + unload(); + m_Module = osl_loadModuleRelativeAscii(baseModule, relativePath, mode); + return is(); + } + + void SAL_CALL unload() + { + if (m_Module) + { + osl_unloadModule(m_Module); + m_Module = NULL; + } + } + +#endif + + bool SAL_CALL is() const + { + return m_Module != NULL; + } + + void* SAL_CALL getSymbol( const ::rtl::OUString& strSymbolName) + { + return osl_getSymbol( m_Module, strSymbolName.pData ); + } + + /** Get function address by the function name in the module. + + getFunctionSymbol is an alternative function for getSymbol. + Use Function pointer as symbol address to conceal type conversion. + + @param[in] ustrFunctionSymbolName Function name to be looked up. + + @retval oslGenericFunction format function address on success + @retval NULL lookup failed or parameter is somewhat invalid + + @see getSymbol + */ + oslGenericFunction SAL_CALL getFunctionSymbol( const ::rtl::OUString& ustrFunctionSymbolName ) const + { + return osl_getFunctionSymbol( m_Module, ustrFunctionSymbolName.pData ); + } + + /// @since LibreOffice 3.5 + oslGenericFunction SAL_CALL getFunctionSymbol(char const * name) const { + return osl_getAsciiFunctionSymbol(m_Module, name); + } + + operator oslModule() const + { + return m_Module; + } + + /** Release the module so that it will not be unloaded from the destructor. + + This instance returns to the state of a default-constructed instance + again. + + @since LibreOffice 4.3 + */ + void release() { m_Module = NULL; } + +private: + oslModule m_Module; + +}; + +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |