#ifndef _WX_DYNLIB_H__
#define _WX_DYNLIB_H__
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-# pragma interface "dynlib.h"
-#endif
-
#include "wx/defs.h"
#if wxUSE_DYNLIB_CLASS
#include "wx/string.h"
#include "wx/dynarray.h"
-#if defined(__WXPM__) || defined(__EMX__)
+#if defined(__OS2__) || defined(__EMX__)
#include "wx/os2/private.h"
#endif
#include "wx/msw/private.h"
#endif
-#if defined(HAVE_DLERROR) && !defined(__EMX__)
+// note that we have our own dlerror() implementation under Darwin
+#if (defined(HAVE_DLERROR) && !defined(__EMX__)) || defined(__DARWIN__)
#define wxHAVE_DYNLIB_ERROR
#endif
-class WXDLLIMPEXP_BASE wxDynamicLibraryDetailsCreator;
+class WXDLLIMPEXP_FWD_BASE wxDynamicLibraryDetailsCreator;
// ----------------------------------------------------------------------------
// conditional compilation
// ----------------------------------------------------------------------------
-// Note: WXPM/EMX has to be tested first, since we want to use
+// Note: __OS2__/EMX has to be tested first, since we want to use
// native version, even if configure detected presence of DLOPEN.
-#if defined(__WXPM__) || defined(__EMX__) || defined(__WINDOWS__)
+#if defined(__OS2__) || defined(__EMX__) || defined(__WINDOWS__)
typedef HMODULE wxDllType;
#elif defined(HAVE_DLOPEN)
#include <dlfcn.h>
#define wxDYNLIB_FUNCTION(type, name, dynlib) \
type pfn ## name = (type)(dynlib).GetSymbol(_T(#name))
+
+// the following macros can be used to redirect a whole
+// library to a class and check at run-time if the the
+// library is present and contains all required methods.
+
+#define wxDL_METHOD_DEFINE( rettype, name, args, shortargs, defret ) \
+ typedef rettype (* name ## Type) args ; \
+ name ## Type pfn_ ## name; \
+ rettype name args \
+ { if (m_ok) return pfn_ ## name shortargs ; return defret; }
+
+#define wxDL_VOIDMETHOD_DEFINE( name, args, shortargs ) \
+ typedef void (* name ## Type) args ; \
+ name ## Type pfn_ ## name; \
+ void name args \
+ { if (m_ok) pfn_ ## name shortargs ; }
+
+#define wxDL_METHOD_LOAD( lib, name, success ) \
+ pfn_ ## name = (name ## Type) lib->GetSymbol( wxT(#name), &success ); \
+ if (!success) return;
+
// ----------------------------------------------------------------------------
// wxDynamicLibraryDetails: contains details about a loaded wxDynamicLibrary
// ----------------------------------------------------------------------------
static wxDllType GetProgramHandle();
// return the platform standard DLL extension (with leading dot)
- static const wxChar *GetDllExt() { return ms_dllext; }
+ static const wxString& GetDllExt() { return ms_dllext; }
wxDynamicLibrary() : m_handle(0) { }
wxDynamicLibrary(const wxString& libname, int flags = wxDL_DEFAULT)
#endif
}
+#ifdef __WXMSW__
+ // this function is useful for loading functions from the standard Windows
+ // DLLs: such functions have an 'A' (in ANSI build) or 'W' (in Unicode, or
+ // wide character build) suffix if they take string parameters
+ static void *RawGetSymbolAorW(wxDllType handle, const wxString& name)
+ {
+ return RawGetSymbol
+ (
+ handle,
+ name +
+#if wxUSE_UNICODE
+ L'W'
+#else
+ 'A'
+#endif
+ );
+ }
+
+ void *GetSymbolAorW(const wxString& name) const
+ {
+ return RawGetSymbolAorW(m_handle, name);
+ }
+#endif // __WXMSW__
+
// return all modules/shared libraries in the address space of this process
//
// returns an empty array if not implemented or an error occurred
static wxString GetPluginsDirectory();
-#if WXWIN_COMPATIBILITY_2_2
- operator bool() const { return IsLoaded(); }
-#endif
-
protected:
// common part of GetSymbol() and HasSymbol()
void *DoGetSymbol(const wxString& name, bool *success = 0) const;
// platform specific shared lib suffix.
- static const wxChar *ms_dllext;
+ static const wxString ms_dllext;
// the handle to DLL or NULL
wxDllType m_handle;
};
-// ----------------------------------------------------------------------------
-// wxDllLoader: low level DLL functions, use wxDynamicLibrary in your code
-// ----------------------------------------------------------------------------
-
-#if WXWIN_COMPATIBILITY_2_2 && wxUSE_DYNAMIC_LOADER
-
-/*
- wxDllLoader is a class providing an interface similar to unix's dlopen().
- It is used by wxDynamicLibrary wxLibrary and manages the actual loading of
- DLLs and the resolving of symbols in them. There are no instances of this
- class, it simply serves as a namespace for its static member functions.
-*/
-class WXDLLIMPEXP_BASE wxDllLoader
-{
-public:
- /*
- This function loads the shared library libname into memory.
-
- libname may be either the full path to the file or just the filename in
- which case the library is searched for in all standard locations
- (use GetDllExt() to construct the filename)
-
- if success pointer is not NULL, it will be filled with true if everything
- went ok and false otherwise
- */
- static wxDllType LoadLibrary(const wxString& name, bool *success = NULL);
-
- /*
- This function unloads the shared library previously loaded with
- LoadLibrary
- */
- static void UnloadLibrary(wxDllType dll);
-
- /*
- This function returns a valid handle for the main program
- itself or NULL if back linking is not supported by the current platform
- (e.g. Win32).
- */
- static wxDllType GetProgramHandle() { return wxDynamicLibrary::GetProgramHandle(); }
-
- /*
- This function resolves a symbol in a loaded DLL, such as a
- variable or function name.
-
- dllHandle Handle of the DLL, as returned by LoadDll().
- name Name of the symbol.
-
- Returns the pointer to the symbol or NULL on error.
- */
- static void *GetSymbol(wxDllType dllHandle, const wxString &name, bool *success = 0);
-
- // return the standard DLL extension (with leading dot) for this platform
- static wxString GetDllExt() { return wxDynamicLibrary::GetDllExt(); }
-
-private:
-
- wxDllLoader(); // forbid construction of objects
-};
-
-
-// ----------------------------------------------------------------------------
-// wxLibrary
-// ----------------------------------------------------------------------------
-
-#include "wx/hash.h"
-
-class WXDLLIMPEXP_BASE wxLibrary : public wxObject
-{
-public:
- wxLibrary(wxDllType handle);
- virtual ~wxLibrary();
-
- // Get a symbol from the dynamic library
- void *GetSymbol(const wxString& symbname);
-
- // Create the object whose classname is "name"
- wxObject *CreateObject(const wxString& name);
-
-protected:
- void PrepareClasses(wxClassInfo *first);
-
- wxDllType m_handle;
-
-public:
- wxHashTable classTable;
-};
-
-// ----------------------------------------------------------------------------
-// wxLibraries
-// ----------------------------------------------------------------------------
-
-class WXDLLIMPEXP_BASE wxLibraries
-{
-public:
- wxLibraries();
- ~wxLibraries();
-
- // caller is responsible for deleting the returned pointer if !NULL
- wxLibrary *LoadLibrary(const wxString& basename);
-
- wxObject *CreateObject(const wxString& name);
-
-protected:
- wxList m_loaded;
-};
-
-// ----------------------------------------------------------------------------
-// Global variables
-// ----------------------------------------------------------------------------
-
-extern WXDLLIMPEXP_DATA_BASE(wxLibraries) wxTheLibraries;
-
-#endif // WXWIN_COMPATIBILITY_2_2 && wxUSE_DYNAMIC_LOADER
-
// ----------------------------------------------------------------------------
// Interesting defines
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff