X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/406291e530b14c6a2f4537ce59647d88b3ccde7c..12cca26a83405b5f7f29ce2c44c5f965d07ceafc:/src/common/dynlib.cpp diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp index 177e21a773..c631d06b30 100644 --- a/src/common/dynlib.cpp +++ b/src/common/dynlib.cpp @@ -5,243 +5,323 @@ // Modified by: // Created: 20/07/98 // RCS-ID: $Id$ -// Copyright: (c) Guilhem Lavaux -// Licence: wxWindows license +// Copyright: (c) 1998 Guilhem Lavaux +// 2000-2005 Vadim Zeitlin +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "dynlib.h" -#endif +//FIXME: This class isn't really common at all, it should be moved into +// platform dependent files (already done for Windows and Unix) -#include -#include -#include -#include +// ============================================================================ +// declarations +// ============================================================================ -// --------------------------------------------------------------------------- -// System dependent include -// --------------------------------------------------------------------------- +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- -#if defined(__LINUX__) || defined(__SGI__) -#include +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) +# pragma implementation "dynlib.h" #endif -#ifdef __WINDOWS__ -#include -#endif +#include "wx/wxprec.h" -// --------------------------------------------------------------------------- -// Global variables -// --------------------------------------------------------------------------- +#ifdef __BORLANDC__ + #pragma hdrstop +#endif -wxLibraries wxTheLibraries; +#if wxUSE_DYNLIB_CLASS -// --------------------------------------------------------------------------- -// wxLibrary (one instance per dynamic library -// --------------------------------------------------------------------------- +#include "wx/dynlib.h" +#include "wx/filefn.h" +#include "wx/intl.h" +#include "wx/log.h" +#include "wx/utils.h" +#include "wx/filename.h" // for SplitPath() +#include "wx/app.h" +#include "wx/apptrait.h" -wxLibrary::wxLibrary(void *handle) -{ - typedef wxClassLibrary *(*t_get_list)(void); - t_get_list get_list; +#include "wx/arrimpl.cpp" - m_handle = handle; +#if defined(__WXMAC__) + #include "wx/mac/private.h" +#endif - get_list = (t_get_list)GetSymbol("GetClassList"); - m_liblist = (*get_list)(); -} +WX_DEFINE_USER_EXPORTED_OBJARRAY(wxDynamicLibraryDetailsArray); -wxLibrary::~wxLibrary() -{ - if (m_handle) { - typedef void (*t_free_list)(wxClassLibrary *); - t_free_list free_list; +// ============================================================================ +// implementation +// ============================================================================ - free_list = (t_free_list) GetSymbol("FreeClassList"); - if (free_list != NULL) - free_list(m_liblist); - else - delete m_liblist; +// --------------------------------------------------------------------------- +// wxDynamicLibrary +// --------------------------------------------------------------------------- -#if defined(__LINUX__) || defined(__SGI__) - dlclose(m_handle); -#endif -#ifdef __WINDOWS__ - FreeLibrary((HMODULE)m_handle); +#if defined(__WXPM__) || defined(__EMX__) + const wxChar *wxDynamicLibrary::ms_dllext = _T(".dll"); +#elif defined(__WXMAC__) && !defined(__DARWIN__) + const wxChar *wxDynamicLibrary::ms_dllext = wxEmptyString; #endif - } -} -wxObject *wxLibrary::CreateObject(const wxString& name) -{ - return m_liblist->CreateObject(name); -} +// for MSW/Unix it is defined in platform-specific file +#if !(defined(__WXMSW__) || defined(__UNIX__)) || defined(__EMX__) -void *wxLibrary::GetSymbol(const wxString& symbname) +wxDllType wxDynamicLibrary::GetProgramHandle() { -#if defined(__LINUX__) || defined(__SGI__) - return dlsym(m_handle, WXSTRINGCAST symbname); -#endif -#ifdef __WINDOWS__ - return GetProcAddress(m_handle, WXSTRINGCAST symbname); -#endif - return NULL; + wxFAIL_MSG( wxT("GetProgramHandle() is not implemented under this platform")); + return 0; } -// --------------------------------------------------------------------------- -// wxLibraries (only one instance should normally exist) -// --------------------------------------------------------------------------- +#endif // __WXMSW__ || __UNIX__ -wxLibraries::wxLibraries() -{ -} -wxLibraries::~wxLibraries() +bool wxDynamicLibrary::Load(const wxString& libnameOrig, int flags) { - wxNode *node = m_loaded.First(); - - while (node) { - wxLibrary *lib = (wxLibrary *)node->Data(); - delete lib; + wxASSERT_MSG(m_handle == 0, _T("Library already loaded.")); + + // add the proper extension for the DLL ourselves unless told not to + wxString libname = libnameOrig; + if ( !(flags & wxDL_VERBATIM) ) + { + // and also check that the libname doesn't already have it + wxString ext; + wxFileName::SplitPath(libname, NULL, NULL, &ext); + if ( ext.empty() ) + { + libname += GetDllExt(); + } + } - node = node->Next(); - } -} + // different ways to load a shared library + // + // FIXME: should go to the platform-specific files! +#if defined(__WXMAC__) && !defined(__DARWIN__) + FSSpec myFSSpec; + Ptr myMainAddr; + Str255 myErrName; + + wxMacFilename2FSSpec( libname , &myFSSpec ); + + if( GetDiskFragment( &myFSSpec, + 0, + kCFragGoesToEOF, + "\p", + kPrivateCFragCopy, + &m_handle, + &myMainAddr, + myErrName ) != noErr ) + { + wxLogSysError( _("Failed to load shared library '%s' Error '%s'"), + libname.c_str(), + wxMacMakeStringFromPascal( myErrName ).c_str() ); + m_handle = 0; + } -wxLibrary *wxLibraries::LoadLibrary(const wxString& name) -{ - wxString lib_name = name; - wxNode *node; - wxLibrary *lib; +#elif defined(__WXPM__) || defined(__EMX__) + char err[256] = ""; + DosLoadModule(err, sizeof(err), (PSZ)libname.c_str(), &m_handle); +#else + m_handle = RawLoad(libname, flags); +#endif - if ( (node = m_loaded.Find(name.GetData())) ) - return ((wxLibrary *)node->Data()); + if ( m_handle == 0 ) + { +#ifdef wxHAVE_DYNLIB_ERROR + Error(); +#else + wxLogSysError(_("Failed to load shared library '%s'"), libname.c_str()); +#endif + } -#if defined(__LINUX__) || defined(__SGI__) - lib_name.Prepend("lib"); - lib_name += ".so"; + return IsLoaded(); +} - printf("lib_name = %s\n", WXSTRINGCAST lib_name); +// for MSW and Unix this is implemented in the platform-specific file +// +// TODO: move the rest to os2/dlpm.cpp and mac/dlmac.cpp! +#if (!defined(__WXMSW__) && !defined(__UNIX__)) || defined(__EMX__) - void *handle = dlopen(WXSTRINGCAST lib_name, RTLD_LAZY); +/* static */ +void wxDynamicLibrary::Unload(wxDllType handle) +{ +#if defined(__WXPM__) || defined(__EMX__) + DosFreeModule( handle ); +#elif defined(__WXMAC__) && !defined(__DARWIN__) + CloseConnection( (CFragConnectionID*) &handle ); +#else + #error "runtime shared lib support not implemented" +#endif +} - if (!handle) - return NULL; -#elif defined( __WINDOWS__ ) - lib_name += ".dll"; +#endif // !(__WXMSW__ || __UNIX__) - HMODULE handle = LoadLibrary(lib_name); - if (!handle) - return NULL; +void *wxDynamicLibrary::DoGetSymbol(const wxString &name, bool *success) const +{ + wxCHECK_MSG( IsLoaded(), NULL, + _T("Can't load symbol from unloaded library") ); + + void *symbol = 0; + + wxUnusedVar(symbol); +#if defined(__WXMAC__) && !defined(__DARWIN__) + Ptr symAddress; + CFragSymbolClass symClass; + Str255 symName; +#if TARGET_CARBON + c2pstrcpy( (StringPtr) symName, name.fn_str() ); #else - return NULL; + strcpy( (char *)symName, name.fn_str() ); + c2pstr( (char *)symName ); #endif -#if defined(__LINUX__) || defined(__SGI__) || defined (__WINDOWS__) - lib = new wxLibrary((void *)handle); - - m_loaded.Append(name.GetData(), lib); - return lib; + if( FindSymbol( m_handle, symName, &symAddress, &symClass ) == noErr ) + symbol = (void *)symAddress; +#elif defined(__WXPM__) || defined(__EMX__) + DosQueryProcAddr( m_handle, 1L, (PSZ)name.c_str(), (PFN*)symbol ); +#else + symbol = RawGetSymbol(m_handle, name); #endif + + if ( success ) + *success = symbol != NULL; + + return symbol; } -wxObject *wxLibraries::CreateObject(const wxString& path) +void *wxDynamicLibrary::GetSymbol(const wxString& name, bool *success) const { - wxNode *node = m_loaded.First(); - wxObject *obj; - - while (node) { - obj = ((wxLibrary *)node->Data())->CreateObject(path); - if (obj) - return obj; + void *symbol = DoGetSymbol(name, success); + if ( !symbol ) + { +#ifdef wxHAVE_DYNLIB_ERROR + Error(); +#else + wxLogSysError(_("Couldn't find symbol '%s' in a dynamic library"), + name.c_str()); +#endif + } - node = node->Next(); - } - return NULL; + return symbol; } -// --------------------------------------------------------------------------- -// wxClassLibrary (this class is used to access the internal class) -// --------------------------------------------------------------------------- +// ---------------------------------------------------------------------------- +// informational methods +// ---------------------------------------------------------------------------- -wxClassLibrary::wxClassLibrary(void) +/*static*/ +wxString +wxDynamicLibrary::CanonicalizeName(const wxString& name, + wxDynamicLibraryCategory cat) { + wxString nameCanonic; + + // under Unix the library names usually start with "lib" prefix, add it +#if defined(__UNIX__) && !defined(__EMX__) + switch ( cat ) + { + default: + wxFAIL_MSG( _T("unknown wxDynamicLibraryCategory value") ); + // fall through + + case wxDL_MODULE: + // don't do anything for modules, their names are arbitrary + break; + + case wxDL_LIBRARY: + // library names should start with "lib" under Unix + nameCanonic = _T("lib"); + break; + } +#else // !__UNIX__ + wxUnusedVar(cat); +#endif // __UNIX__/!__UNIX__ + + nameCanonic << name << GetDllExt(); + return nameCanonic; } -wxClassLibrary::~wxClassLibrary(void) +/*static*/ +wxString wxDynamicLibrary::CanonicalizePluginName(const wxString& name, + wxPluginCategory cat) { - uint i; + wxString suffix; + if ( cat == wxDL_PLUGIN_GUI ) + { + wxAppTraits *traits = wxAppConsole::GetInstance() ? + wxAppConsole::GetInstance()->GetTraits() : NULL; + wxASSERT_MSG( traits, + _("can't query for GUI plugins name in console applications") ); + suffix = traits->GetToolkitInfo().shortName; + } +#if wxUSE_UNICODE + suffix << _T('u'); +#endif +#ifdef __WXDEBUG__ + suffix << _T('d'); +#endif - for (i=0;iclass_info = class_info; - info->path = path; - m_list.Add(info); -} + suffix << wxString::FromAscii(wxDLLVER(wxMAJOR_VERSION, wxMINOR_VERSION, + wxRELEASE_NUMBER)); +#undef wxDLLVER +#undef WXSTRINGIZE -void wxClassLibrary::UnregisterClass(wxClassInfo *class_info) -{ - uint i = 0; +#ifdef __WINDOWS__ + // Add compiler identification: + #if defined(__GNUG__) + suffix << _T("_gcc"); + #elif defined(__VISUALC__) + suffix << _T("_vc"); + #elif defined(__WATCOMC__) + suffix << _T("_wat"); + #elif defined(__BORLANDC__) + suffix << _T("_bcc"); + #endif +#endif - while (i < m_list.Count()) { - if (m_list[i]->class_info == class_info) { - delete (m_list[i]); - m_list.Remove(i); - return; - } - i++; - } + return CanonicalizeName(name + suffix, wxDL_MODULE); } -bool wxClassLibrary::CreateObjects(const wxString& path, - wxArrayClassInfo& objs) +/*static*/ +wxString wxDynamicLibrary::GetPluginsDirectory() { - wxClassLibInfo *info; - uint i = 0; - - while (i < m_list.Count()) { - info = m_list[i]; - if (wxMatchWild(path, info->path)) - objs.Add(info->class_info); - i++; - } - return (i > 0); -} +#ifdef __UNIX__ + wxString format = wxGetInstallPrefix(); + wxString dir; + format << wxFILE_SEP_PATH + << wxT("lib") << wxFILE_SEP_PATH + << wxT("wx") << wxFILE_SEP_PATH +#if (wxMINOR_VERSION % 2) == 0 + << wxT("%i.%i"); + dir.Printf(format.c_str(), wxMAJOR_VERSION, wxMINOR_VERSION); +#else + << wxT("%i.%i.%i"); + dir.Printf(format.c_str(), + wxMAJOR_VERSION, wxMINOR_VERSION, wxRELEASE_NUMBER); +#endif + return dir; -bool wxClassLibrary::FetchInfos(const wxString& path, - wxArrayClassLibInfo& infos) -{ - wxClassLibInfo *info; - uint i = 0; - - while (i < m_list.Count()) { - info = m_list[i]; - if (wxMatchWild(path, info->path)) { - wxClassLibInfo *inf = new wxClassLibInfo; - *inf = *info; - infos.Add(inf); - } - i++; - } - return (i > 0); +#else // ! __UNIX__ + return wxEmptyString; +#endif } -wxObject *wxClassLibrary::CreateObject(const wxString& path) -{ - wxClassLibInfo *info; - uint i = 0; - - while (i < m_list.Count()) { - info = m_list[i]; - if (wxMatchWild(path, info->path)) - return info->class_info->CreateObject(); - i++; - } - return NULL; -} + +#endif // wxUSE_DYNLIB_CLASS