// ----------------------------------------------------------------------------
#ifdef __GNUG__
- #pragma implementation "dynlib.h"
+# pragma implementation "dynlib.h"
#endif
#include "wx/wxprec.h"
-#ifdef __BORLANDC__
+#ifdef __BORLANDC__
#pragma hdrstop
-#endif //__BORLANDC__
-
-// TODO should be done by configure
-#if defined(__UNIX__) && !(defined(HAVE_DLOPEN) || defined(HAVE_SHLLOAD))
- #if defined(__LINUX__) || defined(__SOLARIS__) || defined(__SUNOS__) || defined(__FREEBSD__)
- #ifndef HAVE_DLOPEN
- #define HAVE_DLOPEN
- #endif
- #elif defined(__HPUX__)
- #ifndef HAVE_SHLLOAD
- #define HAVE_SHLLOAD
- #endif
- #endif // Unix flavour
-#endif // !Unix or already have some HAVE_xxx defined
+#endif
+
+#if wxUSE_DYNLIB_CLASS
#include "wx/dynlib.h"
#include "wx/filefn.h"
#include "wx/intl.h"
#include "wx/log.h"
+#include "wx/tokenzr.h"
// ----------------------------------------------------------------------------
// conditional compilation
// ----------------------------------------------------------------------------
#if defined(HAVE_DLOPEN)
- #define wxDllOpen(lib) dlopen(lib, RTLD_LAZY)
- #define wxDllGetSymbol(handle, name) dlsym(handle, (char *)name)
- #define wxDllClose dlclose
-#elif defined(HAVE_SHLLOAD)
- #define wxDllOpen(lib) shl_open(lib, BIND_DEFERRED, 0)
- #define wxDllClose shl_unload
-
- static inline void *wxDllGetSymbol(shl_t *handle, const char *name)
+# define wxDllOpen(lib) dlopen(lib.fn_str(), RTLD_NOW/*RTLD_LAZY*/)
+# define wxDllGetSymbol(handle, name) dlsym(handle, name.mb_str())
+# define wxDllClose dlclose
+#elif defined(HAVE_SHL_LOAD)
+# define wxDllOpen(lib) shl_load(lib.fn_str(), BIND_DEFERRED, 0)
+# define wxDllClose shl_unload
+
+ static inline void *wxDllGetSymbol(shl_t handle, const wxString& name)
{
void *sym;
- if ( shl_findsym(handle, name, TYPE_UNDEFINED, &sym) == 0 )
+ if ( shl_findsym(&handle, name.mb_str(), TYPE_UNDEFINED, &sym) == 0 )
return sym;
else
return (void *)0;
}
#elif defined(__WINDOWS__)
- #define wxDllOpen(lib) ::LoadLibrary(lib)
- #define wxDllGetSymbol(handle, name) ::GetProcAddress(handle, name)
- #define wxDllClose ::FreeLibrary
+# include <windows.h>
+
+ // using LoadLibraryEx under Win32 to avoid name clash with LoadLibrary
+# ifdef __WIN32__
+# define wxDllOpen(lib) ::LoadLibraryEx(lib, 0, 0)
+# else // Win16
+# define wxDllOpen(lib) ::LoadLibrary(lib)
+# endif // Win32/16
+# define wxDllGetSymbol(handle, name) ::GetProcAddress(handle, name)
+# define wxDllClose ::FreeLibrary
#else
- #error "Don't know how to load shared libraries on this platform."
+# error "Don't know how to load shared libraries on this platform."
#endif // OS
// ---------------------------------------------------------------------------
wxString fullname(basename);
#if defined(__UNIX__)
- fullname << ".so";
+# if defined(__HPUX__)
+ fullname << ".sl";
+# else //__HPUX__
+ fullname << ".so";
+# endif //__HPUX__
#elif defined(__WINDOWS__)
fullname << ".dll";
#endif
// implementation
// ============================================================================
+
// ---------------------------------------------------------------------------
// wxLibrary (one instance per dynamic library)
// ---------------------------------------------------------------------------
void *wxLibrary::GetSymbol(const wxString& symbname)
{
- void *symbol = NULL; // return value
+ return wxDllLoader::GetSymbol(m_handle, symbname);
+}
-#if defined( __WXMAC__ )
- Ptr symAddress ;
- CFragSymbolClass symClass ;
- Str255 symName ;
+// ---------------------------------------------------------------------------
+// wxDllLoader
+// ---------------------------------------------------------------------------
- strcpy( (char*) symName , symbname ) ;
- c2pstr( (char*) symName ) ;
+/* static */
+wxDllType
+wxDllLoader::GetProgramHandle(void)
+{
+#ifdef __UNIX__
+ return dlopen(NULL, RTLD_NOW/*RTLD_LAZY*/);
+#else
+ wxFAIL_MSG(_("This method is not implemented under Windows"));
- if ( FindSymbol( m_handle , symName , &symAddress , &symClass ) == noErr )
- {
- symbol = (void *)symAddress ;
- }
+ return 0;
+#endif
+}
+
+
+/* static */
+wxDllType
+wxDllLoader::LoadLibrary(const wxString & lib_name, bool *success)
+{
+ wxASSERT(success);
+
+ wxDllType handle;
+
+#if defined(__WXMAC__)
+ FSSpec myFSSpec ;
+ Ptr myMainAddr ;
+ Str255 myErrName ;
+
+ wxMacPathToFSSpec( lib_name , &myFSSpec ) ;
+ if (GetDiskFragment( &myFSSpec , 0 , kCFragGoesToEOF , "\p" , kPrivateCFragCopy , &handle , &myMainAddr ,
+ myErrName ) != noErr )
+ {
+ p2cstr( myErrName ) ;
+ wxASSERT_MSG( 1 , (char*)myErrName ) ;
+ return NULL ;
+ }
+#else // !Mac
+ handle = wxDllOpen(lib_name);
+#endif // OS
+
+ if ( !handle )
+ {
+ wxLogSysError(_("Failed to load shared library '%s'"),
+ lib_name.c_str());
+ *success = FALSE;
+ return NULL;
+ }
+ *success = TRUE;
+ return handle;
+}
+
+
+/* static */
+void
+wxDllLoader::UnloadLibrary(wxDllType handle)
+{
+ wxDllClose(handle);
+}
+
+/* static */
+void *
+wxDllLoader::GetSymbol(wxDllType dllHandle, const wxString &name)
+{
+ void *symbol = NULL; // return value
+
+#if defined( __WXMAC__ )
+ Ptr symAddress ;
+ CFragSymbolClass symClass ;
+ Str255 symName ;
+
+ strcpy( (char*) symName , name ) ;
+ c2pstr( (char*) symName ) ;
+
+ if ( FindSymbol( dllHandle , symName , &symAddress , &symClass ) == noErr )
+ symbol = (void *)symAddress ;
#else
- // VZ: hmm... why is WXSTRINGCAST needed? if it's really modified, we
- // should make a copy of it
- symbol = wxDllGetSymbol(m_handle, WXSTRINGCAST symbname);
+ symbol = wxDllGetSymbol(dllHandle, name);
#endif
if ( !symbol )
{
- wxLogSysError(_("Couldn't find symbol '%s' in a dynamic library"),
- symbname.c_str());
+ wxLogSysError(_("Couldn't find symbol '%s' in a dynamic library"),
+ name.c_str());
}
-
return symbol;
}
wxString lib_name = ConstructLibraryName(name);
+/*
+ Unix automatically builds that library name, at least for dlopen()
+*/
+#if 0
#if defined(__UNIX__)
- // TODO use LD_LIBRARY_PATH!
- lib_name.Prepend("/lib");
-#endif // __UNIX__
-
- wxDllType handle ;
-
-#if defined(__WXMAC__)
- FSSpec myFSSpec ;
- Ptr myMainAddr ;
- Str255 myErrName ;
-
- wxMacPathToFSSpec( lib_name , &myFSSpec ) ;
- if (GetDiskFragment( &myFSSpec , 0 , kCFragGoesToEOF , "\p" , kPrivateCFragCopy , &handle , &myMainAddr ,
- myErrName ) != noErr )
+ // found the first file in LD_LIBRARY_PATH with this name
+ wxString libPath("/lib:/usr/lib"); // system path first
+ const char *envLibPath = getenv("LD_LIBRARY_PATH");
+ if ( envLibPath )
+ libPath << ':' << envLibPath;
+ wxStringTokenizer tokenizer(libPath, _T(':'));
+ while ( tokenizer.HasMoreToken() )
{
- p2cstr( myErrName ) ;
- wxASSERT_MSG( 1 , (char*)myErrName ) ;
- return NULL ;
- }
-#else // !Mac
- handle = wxDllOpen(lib_name);
-#endif // OS
+ wxString fullname(tokenizer.NextToken());
- if ( !handle )
- {
- wxLogSysError(_("Failed to load shared library '%s'"),
- lib_name.c_str());
+ fullname << '/' << lib_name;
+ if ( wxFileExists(fullname) )
+ {
+ lib_name = fullname;
- return NULL;
+ // found the library
+ break;
+ }
}
+ //else: not found in the path, leave the name as is (secutiry risk?)
- lib = new wxLibrary(handle);
-
- wxClassInfo::sm_first = old_sm_first;
-
- m_loaded.Append(name.GetData(), lib);
+#endif // __UNIX__
+#endif
+ bool success = FALSE;
+ wxDllType handle = wxDllLoader::LoadLibrary(lib_name, &success);
+ if(success)
+ {
+ lib = new wxLibrary(handle);
+ wxClassInfo::sm_first = old_sm_first;
+ m_loaded.Append(name.GetData(), lib);
+ }
+ else
+ lib = NULL;
return lib;
}
}
return NULL;
}
+
+#endif // wxUSE_DYNLIB_CLASS
projects / wxWidgets.git / blobdiff