#ifndef _WX_DYNLIB_H__
#define _WX_DYNLIB_H__
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-# pragma interface "dynlib.h"
-#endif
-
-#include "wx/setup.h"
+#include "wx/defs.h"
#if wxUSE_DYNLIB_CLASS
#include "wx/string.h"
#include "wx/dynarray.h"
-// FIXME: can this go in private.h or something too??
-#if defined(__WXPM__) || defined(__EMX__)
-#define INCL_DOS
-#include <os2.h>
+#if defined(__OS2__) || defined(__EMX__)
+#include "wx/os2/private.h"
#endif
#ifdef __WXMSW__
#include "wx/msw/private.h"
#endif
+// 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;
// ----------------------------------------------------------------------------
// 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>
enum wxDLFlags
{
wxDL_LAZY = 0x00000001, // resolve undefined symbols at first use
+ // (only works on some Unix versions)
wxDL_NOW = 0x00000002, // resolve undefined symbols on load
+ // (default, always the case under Win32)
wxDL_GLOBAL = 0x00000004, // export extern symbols to subsequently
// loaded libs.
- wxDL_VERBATIM = 0x00000008, // Attempt to load the supplied library
+ wxDL_VERBATIM = 0x00000008, // attempt to load the supplied library
// name without appending the usual dll
// filename extension.
-
wxDL_NOSHARE = 0x00000010, // load new DLL, don't reuse already loaded
+ // (only for wxPluginManager)
- // FIXME: why? (VZ)
-#ifdef __osf__
- wxDL_DEFAULT = wxDL_LAZY
-#else
- wxDL_DEFAULT = wxDL_LAZY | wxDL_GLOBAL
-#endif
+ wxDL_DEFAULT = wxDL_NOW // default flags correspond to Win32
};
enum wxDynamicLibraryCategory
// raw function for loading dynamic libs: always behaves as if
// wxDL_VERBATIM were specified and doesn't log error message if the
// library couldn't be loaded but simply returns NULL
- static wxDllType RawLoad(const wxString& libname);
-
+ static wxDllType RawLoad(const wxString& libname, int flags = wxDL_DEFAULT);
+
// detach the library object from its handle, i.e. prevent the object from
// unloading the library in its dtor -- the caller is now responsible for
// doing this
static void *RawGetSymbol(wxDllType handle, const wxString& name);
void *RawGetSymbol(const wxString& name) const
{
+#if defined (__WXPM__) || defined(__EMX__)
+ return GetSymbol(name);
+#else
return RawGetSymbol(m_handle, name);
+#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 occured
+ // returns an empty array if not implemented or an error occurred
static wxDynamicLibraryDetailsArray ListLoaded();
// return platform-specific name of dynamic library with proper extension
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;
+#ifdef wxHAVE_DYNLIB_ERROR
+ // log the error after a dlxxx() function failure
+ static void Error();
+#endif // wxHAVE_DYNLIB_ERROR
+
// platform specific shared lib suffix.
static const wxChar *ms_dllext;
};
-// ----------------------------------------------------------------------------
-// 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