// Created: 20/07/98
// RCS-ID: $Id$
// Copyright: (c) Guilhem Lavaux
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "dynlib.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
-#include <wx/dynlib.h>
-#include <wx/filefn.h>
-#include <wx/list.h>
-#include <wx/string.h>
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
-// ---------------------------------------------------------------------------
-// System dependent include
-// ---------------------------------------------------------------------------
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+# pragma implementation "dynlib.h"
+#endif
+
+#include "wx/wxprec.h"
-#ifdef __UNIX__
-#include <dlfcn.h>
+#ifdef __BORLANDC__
+ #pragma hdrstop
#endif
-#ifdef __WINDOWS__
-#include <windows.h>
+#if wxUSE_DYNLIB_CLASS
+
+#if defined(__WINDOWS__)
+ #include "wx/msw/private.h"
#endif
-#ifdef LoadLibrary
-#undef LoadLibrary
+#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"
+
+#if defined(__WXMAC__)
+ #include "wx/mac/private.h"
#endif
-// ---------------------------------------------------------------------------
-// Global variables
-// ---------------------------------------------------------------------------
-wxLibraries wxTheLibraries;
+// ============================================================================
+// implementation
+// ============================================================================
+#if defined(__DARWIN__)
// ---------------------------------------------------------------------------
-// wxLibrary (one instance per dynamic library
+// For Darwin/Mac OS X
+// supply the sun style dlopen functions in terms of Darwin NS*
// ---------------------------------------------------------------------------
-wxLibrary::wxLibrary(void *handle)
-{
- typedef wxClassInfo **(*t_get_first)(void);
- t_get_first get_first;
+/* Porting notes:
+ * The dlopen port is a port from dl_next.xs by Anno Siegel.
+ * dl_next.xs is itself a port from dl_dlopen.xs by Paul Marquess.
+ * The method used here is just to supply the sun style dlopen etc.
+ * functions in terms of Darwin NS*.
+ */
- m_handle = handle;
- m_destroy = TRUE;
+#include <stdio.h>
+#include <mach-o/dyld.h>
- // Some system may use a local heap for library.
- get_first = (t_get_first)GetSymbol("wxGetClassFirst");
- // It is a wxWindows DLL.
- if (get_first)
- PrepareClasses(get_first());
-}
+static char dl_last_error[1024];
-wxLibrary::~wxLibrary()
+static
+void TranslateError(const char *path, int number)
{
- if (m_handle && m_destroy) {
-#ifdef __UNIX__
- dlclose(m_handle);
-#endif
-#ifdef __WINDOWS__
- FreeLibrary((HMODULE)m_handle);
-#endif
- }
+ unsigned int index;
+ static char *OFIErrorStrings[] =
+ {
+ "%s(%d): Object Image Load Failure\n",
+ "%s(%d): Object Image Load Success\n",
+ "%s(%d): Not an recognisable object file\n",
+ "%s(%d): No valid architecture\n",
+ "%s(%d): Object image has an invalid format\n",
+ "%s(%d): Invalid access (permissions?)\n",
+ "%s(%d): Unknown error code from NSCreateObjectFileImageFromFile\n",
+ };
+#define NUM_OFI_ERRORS (sizeof(OFIErrorStrings) / sizeof(OFIErrorStrings[0]))
+
+ index = number;
+ if (index > NUM_OFI_ERRORS - 1) {
+ index = NUM_OFI_ERRORS - 1;
+ }
+ sprintf(dl_last_error, OFIErrorStrings[index], path, number);
}
-wxObject *wxLibrary::CreateObject(const wxString& name)
+const char *dlerror()
{
- wxClassInfo *info = (wxClassInfo *)classTable.Get(name);
-
- if (!info)
- return NULL;
+ return dl_last_error;
+}
- return info->CreateObject();
+void *dlopen(const char *path, int WXUNUSED(mode) /* mode is ignored */)
+{
+ int dyld_result;
+ NSObjectFileImage ofile;
+ NSModule handle = NULL;
+
+ dyld_result = NSCreateObjectFileImageFromFile(path, &ofile);
+ if (dyld_result != NSObjectFileImageSuccess)
+ {
+ TranslateError(path, dyld_result);
+ }
+ else
+ {
+ // NSLinkModule will cause the run to abort on any link error's
+ // not very friendly but the error recovery functionality is limited.
+ handle = NSLinkModule(ofile, path, NSLINKMODULE_OPTION_BINDNOW);
+ }
+
+ return handle;
}
-void wxLibrary::PrepareClasses(wxClassInfo **first)
+int dlclose(void *handle)
{
- // Index all class infos by their class name
- wxClassInfo *info = *first;
- while (info)
- {
- if (info->className)
- classTable.Put(info->className, (wxObject *)info);
- info = info->next;
- }
-
- // Set base pointers for each wxClassInfo
- info = *first;
- while (info)
- {
- if (info->GetBaseClassName1())
- info->baseInfo1 = (wxClassInfo *)classTable.Get(info->GetBaseClassName1());
- if (info->GetBaseClassName2())
- info->baseInfo2 = (wxClassInfo *)classTable.Get(info->GetBaseClassName2());
- info = info->next;
- }
- *first = NULL;
+ NSUnLinkModule( handle, NSUNLINKMODULE_OPTION_NONE);
+ return 0;
}
-void *wxLibrary::GetSymbol(const wxString& symbname)
+void *dlsym(void *handle, const char *symbol)
{
-#ifdef __UNIX__
- return dlsym(m_handle, WXSTRINGCAST symbname);
-#endif
-#ifdef __WINDOWS__
- return GetProcAddress(m_handle, WXSTRINGCAST symbname);
-#endif
- return NULL;
+ void *addr;
+
+ NSSymbol nsSymbol = NSLookupSymbolInModule( handle , symbol ) ;
+
+ if ( nsSymbol)
+ {
+ addr = NSAddressOfSymbol(nsSymbol);
+ }
+ else
+ {
+ addr = NULL;
+ }
+ return addr;
}
+#endif // defined(__DARWIN__)
+
+
// ---------------------------------------------------------------------------
-// wxLibraries (only one instance should normally exist)
+// wxDynamicLibrary
// ---------------------------------------------------------------------------
-wxLibraries::wxLibraries()
+//FIXME: This class isn't really common at all, it should be moved into
+// platform dependent files.
+
+#if defined(__WINDOWS__) || defined(__WXPM__) || defined(__EMX__)
+ const wxChar *wxDynamicLibrary::ms_dllext = _T(".dll");
+#elif defined(__UNIX__)
+ #if defined(__HPUX__)
+ const wxChar *wxDynamicLibrary::ms_dllext = _T(".sl");
+ #else
+ const wxChar *wxDynamicLibrary::ms_dllext = _T(".so");
+ #endif
+#endif
+
+wxDllType wxDynamicLibrary::GetProgramHandle()
{
+#if defined( HAVE_DLOPEN ) && !defined(__EMX__)
+ return dlopen(0, RTLD_LAZY);
+#elif defined (HAVE_SHL_LOAD)
+ return PROG_HANDLE;
+#else
+ wxFAIL_MSG( wxT("This method is not implemented under Windows or OS/2"));
+ return 0;
+#endif
}
-wxLibraries::~wxLibraries()
+bool wxDynamicLibrary::Load(wxString libname, int flags)
{
- wxNode *node = m_loaded.First();
+ wxASSERT_MSG(m_handle == 0, _T("Library already loaded."));
+
+ // add the proper extension for the DLL ourselves unless told not to
+ 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();
+ }
+ }
+
+ // 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 )
+ {
+ p2cstr( myErrName );
+ wxLogSysError( _("Failed to load shared library '%s' Error '%s'"),
+ libname.c_str(),
+ (char*)myErrName );
+ m_handle = 0;
+ }
+
+#elif defined(__WXPM__) || defined(__EMX__)
+ char err[256] = "";
+ DosLoadModule(err, sizeof(err), libname.c_str(), &m_handle);
+
+#elif defined(HAVE_DLOPEN) || defined(__DARWIN__)
+
+#if defined(__VMS) || defined(__DARWIN__)
+ m_handle = dlopen(libname.fn_str(), 0); // The second parameter is ignored
+#else // !__VMS && !__DARWIN__
+ int rtldFlags = 0;
+
+ if ( flags & wxDL_LAZY )
+ {
+ wxASSERT_MSG( (flags & wxDL_NOW) == 0,
+ _T("wxDL_LAZY and wxDL_NOW are mutually exclusive.") );
+#ifdef RTLD_LAZY
+ rtldFlags |= RTLD_LAZY;
+#else
+ wxLogDebug(_T("wxDL_LAZY is not supported on this platform"));
+#endif
+ }
+ else if ( flags & wxDL_NOW )
+ {
+#ifdef RTLD_NOW
+ rtldFlags |= RTLD_NOW;
+#else
+ wxLogDebug(_T("wxDL_NOW is not supported on this platform"));
+#endif
+ }
+
+ if ( flags & wxDL_GLOBAL )
+ {
+#ifdef RTLD_GLOBAL
+ rtldFlags |= RTLD_GLOBAL;
+#else
+ wxLogDebug(_T("RTLD_GLOBAL is not supported on this platform."));
+#endif
+ }
+
+ m_handle = dlopen(libname.fn_str(), rtldFlags);
+#endif // __VMS || __DARWIN__ ?
+
+#elif defined(HAVE_SHL_LOAD)
+ int shlFlags = 0;
+
+ if( flags & wxDL_LAZY )
+ {
+ wxASSERT_MSG( (flags & wxDL_NOW) == 0,
+ _T("wxDL_LAZY and wxDL_NOW are mutually exclusive.") );
+ shlFlags |= BIND_DEFERRED;
+ }
+ else if( flags & wxDL_NOW )
+ {
+ shlFlags |= BIND_IMMEDIATE;
+ }
+ m_handle = shl_load(libname.fn_str(), BIND_DEFERRED, 0);
+
+#elif defined(__WINDOWS__)
+ m_handle = ::LoadLibrary(libname.c_str());
+#else
+ #error "runtime shared lib support not implemented on this platform"
+#endif
- while (node) {
- wxLibrary *lib = (wxLibrary *)node->Data();
- delete lib;
+ if ( m_handle == 0 )
+ {
+ wxString msg(_("Failed to load shared library '%s'"));
+#if defined(HAVE_DLERROR) && !defined(__EMX__)
- node = node->Next();
- }
+#if wxUSE_UNICODE
+ wxWCharBuffer buffer = wxConvLocal.cMB2WC( dlerror() );
+ const wxChar *err = buffer;
+#else
+ const wxChar *err = dlerror();
+#endif
+
+ if( err )
+ wxLogError( msg, err );
+#else
+ wxLogSysError( msg, libname.c_str() );
+#endif
+ }
+
+ return IsLoaded();
}
-wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
+/* static */
+void wxDynamicLibrary::Unload(wxDllType handle)
{
- wxString lib_name = name;
- wxNode *node;
- wxLibrary *lib;
+#if defined(__WXPM__) || defined(__EMX__)
+ DosFreeModule( handle );
+#elif defined(HAVE_DLOPEN) || defined(__DARWIN__)
+ dlclose( handle );
+#elif defined(HAVE_SHL_LOAD)
+ shl_unload( handle );
+#elif defined(__WINDOWS__)
+ ::FreeLibrary( handle );
+#elif defined(__WXMAC__) && !defined(__DARWIN__)
+ CloseConnection( (CFragConnectionID*) &handle );
+#else
+ #error "runtime shared lib support not implemented"
+#endif
+}
- if ( (node = m_loaded.Find(name.GetData())) )
- return ((wxLibrary *)node->Data());
+void *wxDynamicLibrary::GetSymbol(const wxString &name, bool *success) const
+{
+ wxCHECK_MSG( IsLoaded(), NULL,
+ _T("Can't load symbol from unloaded library") );
+
+ bool failed = FALSE;
+ 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
+ strcpy( (char *)symName, name.fn_str() );
+ c2pstr( (char *)symName );
+#endif
+ if( FindSymbol( m_handle, symName, &symAddress, &symClass ) == noErr )
+ symbol = (void *)symAddress;
-#if defined(__UNIX__)
- lib_name.Prepend("./lib");
- lib_name += ".so";
+#elif defined(__WXPM__) || defined(__EMX__)
+ DosQueryProcAddr( m_handle, 1L, name.c_str(), (PFN*)symbol );
- printf("lib_name = %s\n", WXSTRINGCAST lib_name);
+#elif defined(HAVE_DLOPEN) || defined(__DARWIN__)
+ symbol = dlsym( m_handle, name.fn_str() );
- void *handle = dlopen(WXSTRINGCAST lib_name, RTLD_LAZY);
+#elif defined(HAVE_SHL_LOAD)
+ // use local variable since shl_findsym modifies the handle argument
+ // to indicate where the symbol was found (GD)
+ wxDllType the_handle = m_handle;
+ if( shl_findsym( &the_handle, name.fn_str(), TYPE_UNDEFINED, &symbol ) != 0 )
+ symbol = 0;
- if (!handle)
- return NULL;
#elif defined(__WINDOWS__)
- lib_name += ".dll";
+#ifdef __WXWINCE__
+ symbol = (void*) ::GetProcAddress( m_handle, name );
+#else
+ symbol = (void*) ::GetProcAddress( m_handle, name.mb_str() );
+#endif
+
+#else
+#error "runtime shared lib support not implemented"
+#endif
+
+ if ( !symbol )
+ {
+#if defined(HAVE_DLERROR) && !defined(__EMX__)
-#ifdef UNICODE
- HMODULE handle = LoadLibraryW(lib_name);
+#if wxUSE_UNICODE
+ wxWCharBuffer buffer = wxConvLocal.cMB2WC( dlerror() );
+ const wxChar *err = buffer;
#else
- HMODULE handle = LoadLibraryA(lib_name);
+ const wxChar *err = dlerror();
#endif
- if (!handle)
- return NULL;
+
+ if( err )
+ {
+ wxLogError(wxT("%s"), err);
+ }
#else
- return NULL;
+ failed = TRUE;
+ wxLogSysError(_("Couldn't find symbol '%s' in a dynamic library"),
+ name.c_str());
#endif
+ }
+ if( success )
+ *success = !failed;
+
+ return symbol;
+}
+
- lib = new wxLibrary((void *)handle);
+/*static*/
+wxString
+wxDynamicLibrary::CanonicalizeName(const wxString& name,
+ wxDynamicLibraryCategory
+#ifdef __UNIX__
+ cat
+#else // !__UNIX__
+ WXUNUSED(cat)
+#endif // __UNIX__/!__UNIX__
+ )
+{
+ wxString nameCanonic;
- m_loaded.Append(name.GetData(), lib);
- return lib;
+ // under Unix the library names usualyl start with "lib" prefix, add it
+#ifdef __UNIX__
+ 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;
+ }
+#endif // __UNIX__
+
+ nameCanonic << name << GetDllExt();
+ return nameCanonic;
}
-wxObject *wxLibraries::CreateObject(const wxString& path)
+/*static*/
+wxString wxDynamicLibrary::CanonicalizePluginName(const wxString& name,
+ wxPluginCategory cat)
{
- wxNode *node = m_loaded.First();
- wxObject *obj;
+ 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
+
+ if ( !suffix.empty() )
+ suffix = wxString(_T("_")) + suffix;
+
+#define WXSTRINGIZE(x) #x
+#ifdef __UNIX__
+ #if (wxMINOR_VERSION % 2) == 0
+ #define wxDLLVER(x,y,z) "-" WXSTRINGIZE(x) "." WXSTRINGIZE(y)
+ #else
+ #define wxDLLVER(x,y,z) "-" WXSTRINGIZE(x) "." WXSTRINGIZE(y) "." WXSTRINGIZE(z)
+ #endif
+#else
+ #if (wxMINOR_VERSION % 2) == 0
+ #define wxDLLVER(x,y,z) WXSTRINGIZE(x) WXSTRINGIZE(y)
+ #else
+ #define wxDLLVER(x,y,z) WXSTRINGIZE(x) WXSTRINGIZE(y) WXSTRINGIZE(z)
+ #endif
+#endif
- while (node) {
- obj = ((wxLibrary *)node->Data())->CreateObject(path);
- if (obj)
- return obj;
+ suffix << wxString::FromAscii(wxDLLVER(wxMAJOR_VERSION, wxMINOR_VERSION,
+ wxRELEASE_NUMBER));
+#undef wxDLLVER
+#undef WXSTRINGIZE
- node = node->Next();
- }
- return NULL;
+#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
+
+ return CanonicalizeName(name + suffix, wxDL_MODULE);
+}
+
+/*static*/
+wxString wxDynamicLibrary::GetPluginsDirectory()
+{
+#ifdef __UNIX__
+ wxString format = wxGetInstallPrefix();
+ format << wxFILE_SEP_PATH
+ << wxT("lib") << wxFILE_SEP_PATH
+ << wxT("wx") << wxFILE_SEP_PATH
+ << wxT("%i.%i");
+ wxString dir;
+ dir.Printf(format.c_str(), wxMAJOR_VERSION, wxMINOR_VERSION);
+ return dir;
+#else
+ return wxEmptyString;
+#endif
}
+
+
+#endif // wxUSE_DYNLIB_CLASS
projects / wxWidgets.git / blobdiff