Initial commit of wxAUI

[wxWidgets.git] / include / wx / dynload.h

diff --git a/include/wx/dynload.h b/include/wx/dynload.h
index a2d2763defe8bc7ef41b49122e48486399657a18..b754dee03fed44e344196df460ee6557213710a9 100644 (file)
--- a/include/wx/dynload.h
+++ b/include/wx/dynload.h
@@ -7,16 +7,12 @@
 // Created:      03/12/01
 // RCS-ID:       $Id$
 // Copyright:    (c) 2001 Ron Lee <ron@debian.org>
 // Created:      03/12/01
 // RCS-ID:       $Id$
 // Copyright:    (c) 2001 Ron Lee <ron@debian.org>

-// Licence:      wxWindows license
+// Licence:      wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_DYNAMICLOADER_H__
 #define _WX_DYNAMICLOADER_H__
 
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_DYNAMICLOADER_H__
 #define _WX_DYNAMICLOADER_H__
 

-#ifdef __GNUG__
-#pragma interface "dynload.h"
-#endif
-

 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------


@@ -25,148 +21,16 @@
 
 #if wxUSE_DYNAMIC_LOADER
 
 
 #if wxUSE_DYNAMIC_LOADER
 

-#include "wx/hash.h"
+#include "wx/dynlib.h"
+#include "wx/hashmap.h"

 #include "wx/module.h"
 
 #include "wx/module.h"
 

-// FIXME: can this go in private.h or something too??
-#if defined(__WXPM__) || defined(__EMX__)
-#define INCL_DOS
-#include <os2.h>
-#endif
-
-#ifdef __WXMSW__
-#include "wx/msw/private.h"
-#endif
-
-// Ugh, I'd much rather this was typesafe, but no time
-// to rewrite wxHashTable right now..
-
-typedef wxHashTable wxDLManifest;
-typedef wxHashTable wxDLImports;
-
-// ----------------------------------------------------------------------------
-// conditional compilation
-// ----------------------------------------------------------------------------
-
-    // Note: WXPM/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__)
-typedef HMODULE             wxDllType;
-#elif defined(HAVE_DLOPEN)
-#include <dlfcn.h>
-typedef void               *wxDllType;
-#elif defined(HAVE_SHL_LOAD)
-#include <dl.h>
-typedef shl_t               wxDllType;
-#elif defined(__DARWIN__)
-typedef void               *wxDllType;
-#elif defined(__WXMAC__)
-typedef CFragConnectionID   wxDllType;
-#else
-#error "Dynamic Loading classes can't be compiled on this platform, sorry."
-#endif
-
-
-// ---------------------------------------------------------------------------
-// wxDynamicLibrary
-// ---------------------------------------------------------------------------
-
-//FIXME:  This class isn't really common at all, it should be moved
-//        into platform dependent files.
-
-// NOTE: this class is (deliberately) not virtual, do not attempt
-//       to use it polymorphically.
-
-enum wxDLFlags
-{
-    wxDL_LAZY       = 0x00000001,   // resolve undefined symbols at first use
-    wxDL_NOW        = 0x00000002,   // resolve undefined symbols on load
-    wxDL_GLOBAL     = 0x00000004,   // export extern symbols to subsequently
-                                    // loaded libs.
-    wxDL_VERBATIM   = 0x00000008,   // Attempt to load the supplied library
-                                    // name without appending the usual dll
-                                    // filename extension.
-#ifdef __osf__
-    wxDL_DEFAULT    = wxDL_LAZY
-#else
-    wxDL_DEFAULT    = wxDL_LAZY | wxDL_GLOBAL
-#endif
-};
-
-
-class WXDLLEXPORT wxDynamicLibrary
-{
-public:
-
-        // return 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 the platform standard DLL extension (with leading dot)
-
-    static const wxString   &GetDllExt() { return ms_dllext; }
-
-    wxDynamicLibrary() : m_handle(0) {}
-    wxDynamicLibrary(wxString libname, int flags = wxDL_DEFAULT)
-        : m_handle(0)
-    {
-        Load(libname, flags);
-    }
-    ~wxDynamicLibrary() { Unload(); }
-
-        // return TRUE if the library was loaded successfully
-
-    bool IsLoaded() const { return m_handle != 0; }
-
-        // load the library with the given name
-        // (full or not), return TRUE on success
-
-    bool Load(wxString libname, int flags = wxDL_DEFAULT);
-
-        // unload the library, also done automatically in dtor
-
-    void Unload();
+class WXDLLIMPEXP_BASE wxPluginLibrary;

 
 

-        // Return the raw handle from dlopen and friends.
-
-    wxDllType GetLibHandle() const { return m_handle; }
-
-        // resolve a symbol in a loaded DLL, such as a variable or function
-        // name.  'name' is the (possibly mangled) name of the symbol.
-        // (use extern "C" to export unmangled names)
-        //
-        // Since it is perfectly valid for the returned symbol to actually be
-        // NULL, that is not always indication of an error.  Pass and test the
-        // parameter 'success' for a true indication of success or failure to
-        // load the symbol.
-        //
-        // Returns a pointer to the symbol on success, or NULL if an error
-        // occurred or the symbol wasn't found.
-
-    void *GetSymbol(const wxString& name, bool *success = 0) const;
-
-#if WXWIN_COMPATIBILITY_2_2
-    operator bool() const { return IsLoaded(); }
-#endif
-
-protected:
-
-        // Platform specific shared lib suffix.
-
-    static const wxString ms_dllext;
-
-        // the handle to DLL or NULL
-
-    wxDllType m_handle;
-
-        // no copy ctor/assignment operators
-        // or we'd try to unload the library twice
-
-DECLARE_NO_COPY_CLASS(wxDynamicLibrary)
-};

 
 

+WX_DECLARE_STRING_HASH_MAP_WITH_DECL(wxPluginLibrary *, wxDLManifest,
+                                     class WXDLLIMPEXP_BASE);
+typedef wxDLManifest wxDLImports;

 
 // ---------------------------------------------------------------------------
 // wxPluginLibrary
 
 // ---------------------------------------------------------------------------
 // wxPluginLibrary


@@ -180,16 +44,16 @@ DECLARE_NO_COPY_CLASS(wxDynamicLibrary)
 //       instantiate this class directly anyway, use wxPluginManager
 //       instead.
 
 //       instantiate this class directly anyway, use wxPluginManager
 //       instead.
 

-class WXDLLEXPORT wxPluginLibrary : public wxDynamicLibrary
+class WXDLLIMPEXP_BASE wxPluginLibrary : public wxDynamicLibrary

 {
 public:
 
 {
 public:
 

-    static wxDLImports ms_classes;  // Static hash of all imported classes.
+    static wxDLImports* ms_classes;  // Static hash of all imported classes.

 
     wxPluginLibrary( const wxString &libname, int flags = wxDL_DEFAULT );
     ~wxPluginLibrary();
 
 
     wxPluginLibrary( const wxString &libname, int flags = wxDL_DEFAULT );
     ~wxPluginLibrary();
 

-    wxPluginLibrary  *RefLib() { ++m_linkcount; return this; }
+    wxPluginLibrary  *RefLib();

     bool              UnrefLib();
 
         // These two are called by the PluginSentinel on (PLUGGABLE) object
     bool              UnrefLib();
 
         // These two are called by the PluginSentinel on (PLUGGABLE) object


@@ -225,16 +89,16 @@ private:
     size_t          m_objcount;     // ..and (pluggable) object instantiations.
     wxModuleList    m_wxmodules;    // any wxModules that we initialised.
 
     size_t          m_objcount;     // ..and (pluggable) object instantiations.
     wxModuleList    m_wxmodules;    // any wxModules that we initialised.
 

-    void    UpdateClassInfo();      // Update the wxClassInfo table
-    void    RestoreClassInfo();     // Restore the original wxClassInfo state.
+    void    UpdateClasses();        // Update ms_classes
+    void    RestoreClasses();       // Removes this library from ms_classes

     void    RegisterModules();      // Init any wxModules in the lib.
     void    UnregisterModules();    // Cleanup any wxModules we installed.
 
     void    RegisterModules();      // Init any wxModules in the lib.
     void    UnregisterModules();    // Cleanup any wxModules we installed.
 

-DECLARE_NO_COPY_CLASS(wxPluginLibrary)
+    DECLARE_NO_COPY_CLASS(wxPluginLibrary)

 };
 
 
 };
 
 

-class WXDLLEXPORT wxPluginManager
+class WXDLLIMPEXP_BASE wxPluginManager

 {
 public:
 
 {
 public:
 


@@ -244,21 +108,14 @@ public:
                                             int flags = wxDL_DEFAULT );
     static bool                UnloadLibrary(const wxString &libname);
 
                                             int flags = wxDL_DEFAULT );
     static bool                UnloadLibrary(const wxString &libname);
 

-        // This is used by wxDllLoader.  It's wrapped in the compatibility
-        // macro because it's of arguable use outside of that.
-
-#if WXWIN_COMPATIBILITY_2_2
-    static wxPluginLibrary *GetObjectFromHandle(wxDllType handle);
-#endif
-

         // Instance methods.
 
         // Instance methods.
 

-    wxPluginManager() : m_entry(0) {};
+    wxPluginManager() : m_entry(NULL) {}

     wxPluginManager(const wxString &libname, int flags = wxDL_DEFAULT)
     {
         Load(libname, flags);
     }
     wxPluginManager(const wxString &libname, int flags = wxDL_DEFAULT)
     {
         Load(libname, flags);
     }

-    ~wxPluginManager() { Unload(); }
+    ~wxPluginManager() { if ( IsLoaded() ) Unload(); }

 
     bool   Load(const wxString &libname, int flags = wxDL_DEFAULT);
     void   Unload();
 
     bool   Load(const wxString &libname, int flags = wxDL_DEFAULT);
     void   Unload();


@@ -269,48 +126,28 @@ public:
         return m_entry->GetSymbol( symbol, success );
     }
 
         return m_entry->GetSymbol( symbol, success );
     }
 

+    static void CreateManifest() { ms_manifest = new wxDLManifest(wxKEY_STRING); }
+    static void ClearManifest() { delete ms_manifest; ms_manifest = NULL; }
+

 private:
 private:

+    // return the pointer to the entry for the library with given name in
+    // ms_manifest or NULL if none
+    static wxPluginLibrary *FindByName(const wxString& name)
+    {
+        const wxDLManifest::iterator i = ms_manifest->find(name);
+
+        return i == ms_manifest->end() ? NULL : i->second;
+    }

 
 

-    static wxDLManifest  ms_manifest;  // Static hash of loaded libs.
-    wxPluginLibrary     *m_entry;      // Cache our entry in the manifest.
+    static wxDLManifest* ms_manifest;  // Static hash of loaded libs.
+    wxPluginLibrary*     m_entry;      // Cache our entry in the manifest.

 
     // We could allow this class to be copied if we really
     // wanted to, but not without modification.
 
     // We could allow this class to be copied if we really
     // wanted to, but not without modification.

-
-DECLARE_NO_COPY_CLASS(wxPluginManager)
-};
-
-
-// ---------------------------------------------------------------------------
-// wxDllLoader
-// ---------------------------------------------------------------------------
-
-    //  Cross platform wrapper for dlopen and friends.
-    //  There are no instances of this class, it simply
-    //  serves as a namespace for its static member functions.
-
-#if WXWIN_COMPATIBILITY_2_2
-class WXDLLEXPORT wxDllLoader
-{
-public:
-
-    static wxDllType    LoadLibrary(const wxString& name);
-    static void         UnloadLibrary(wxDllType dll);
-
-    static wxDllType GetProgramHandle() { return wxDynamicLibrary::GetProgramHandle(); }
-
-    static void *GetSymbol(wxDllType dllHandle, const wxString &name, bool *success = 0);
-
-    static const wxString &GetDllExt() { return wxDynamicLibrary::GetDllExt(); }
-
-private:
-
-    wxDllLoader();                    // forbid construction of objects
+    DECLARE_NO_COPY_CLASS(wxPluginManager)

 };
 };

-#endif

 
 
 #endif  // wxUSE_DYNAMIC_LOADER
 #endif  // _WX_DYNAMICLOADER_H__
 
 
 
 #endif  // wxUSE_DYNAMIC_LOADER
 #endif  // _WX_DYNAMICLOADER_H__
 

-// vi:sts=4:sw=4:et