/////////////////////////////////////////////////////////////////////////////
-// Name: dynload.cpp
+// Name: src/common/dynload.cpp
// Purpose: Dynamic loading framework
// Author: Ron Lee, David Falkinder, Vadim Zeitlin and a cast of 1000's
// (derived in part from dynlib.cpp (c) 1998 Guilhem Lavaux)
#include "wx/intl.h"
#include "wx/hash.h"
#include "wx/utils.h"
+ #include "wx/module.h"
#endif
#include "wx/strconv.h"
#include "wx/dynload.h"
-#include "wx/module.h"
// ---------------------------------------------------------------------------
m_entry = NULL;
}
-
-
-#if WXWIN_COMPATIBILITY_2_2
-
-wxPluginLibrary *wxPluginManager::GetObjectFromHandle(wxDllType handle)
-{
- for ( wxDLManifest::iterator i = ms_manifest->begin();
- i != ms_manifest->end();
- ++i )
- {
- wxPluginLibrary * const lib = i->second;
-
- if ( lib->GetLibHandle() == handle )
- return lib;
- }
-
- return NULL;
-}
-
-// ---------------------------------------------------------------------------
-// wxDllLoader (all these methods are static)
-// ---------------------------------------------------------------------------
-
-
-wxDllType wxDllLoader::LoadLibrary(const wxString &name, bool *success)
-{
- wxPluginLibrary *p = wxPluginManager::LoadLibrary
- (
- name,
- wxDL_DEFAULT | wxDL_VERBATIM | wxDL_NOSHARE
- );
-
- if ( success )
- *success = p != NULL;
-
- return p ? p->GetLibHandle() : 0;
-}
-
-void wxDllLoader::UnloadLibrary(wxDllType handle)
-{
- wxPluginLibrary *p = wxPluginManager::GetObjectFromHandle(handle);
-
- wxCHECK_RET( p, _T("Unloading a library not loaded with wxDllLoader?") );
-
- p->UnrefLib();
-}
-
-void *
-wxDllLoader::GetSymbol(wxDllType dllHandle, const wxString &name, bool *success)
-{
- wxPluginLibrary *p = wxPluginManager::GetObjectFromHandle(dllHandle);
-
- if ( !p )
- {
- wxFAIL_MSG( _T("Using a library not loaded with wxDllLoader?") );
-
- if ( success )
- *success = false;
-
- return NULL;
- }
-
- return p->GetSymbol(name, success);
-}
-
-
-// ---------------------------------------------------------------------------
-// Global variables
-// ---------------------------------------------------------------------------
-
-wxLibraries wxTheLibraries;
-
-// ============================================================================
-// implementation
-// ============================================================================
-
-// construct the full name from the base shared object name: adds a .dll
-// suffix under Windows or .so under Unix
-static wxString ConstructLibraryName(const wxString& basename)
-{
- wxString fullname;
- fullname << basename << wxDllLoader::GetDllExt();
-
- return fullname;
-}
-
-// ---------------------------------------------------------------------------
-// wxLibrary (one instance per dynamic library)
-// ---------------------------------------------------------------------------
-
-wxLibrary::wxLibrary(wxDllType handle)
-{
- typedef wxClassInfo *(*t_get_first)(void);
- t_get_first get_first;
-
- m_handle = handle;
-
- // Some system may use a local heap for library.
- get_first = (t_get_first)GetSymbol(_T("wxGetClassFirst"));
- // It is a wxWidgets DLL.
- if (get_first)
- PrepareClasses(get_first());
-}
-
-wxLibrary::~wxLibrary()
-{
- if ( m_handle )
- {
- wxDllLoader::UnloadLibrary(m_handle);
- }
-}
-
-wxObject *wxLibrary::CreateObject(const wxString& name)
-{
- wxClassInfo *info = (wxClassInfo *)classTable.Get(name);
-
- if (!info)
- return NULL;
-
- return info->CreateObject();
-}
-
-void wxLibrary::PrepareClasses(wxClassInfo *first)
-{
- // Index all class infos by their class name
- wxClassInfo *info = first;
- while (info)
- {
- if (info->m_className)
- classTable.Put(info->m_className, (wxObject *)info);
- info = info->m_next;
- }
-
-#if !wxUSE_EXTENDED_RTTI
- // Set base pointers for each wxClassInfo
- info = first;
- while (info)
- {
- if (info->GetBaseClassName1())
- info->m_baseInfo1 = (wxClassInfo *)classTable.Get(info->GetBaseClassName1());
- if (info->GetBaseClassName2())
- info->m_baseInfo2 = (wxClassInfo *)classTable.Get(info->GetBaseClassName2());
- info = info->m_next;
- }
-#endif
-}
-
-void *wxLibrary::GetSymbol(const wxString& symbname)
-{
- return wxDllLoader::GetSymbol(m_handle, symbname);
-}
-
-
-// ---------------------------------------------------------------------------
-// wxLibraries (only one instance should normally exist)
-// ---------------------------------------------------------------------------
-
-wxLibraries::wxLibraries():m_loaded(wxKEY_STRING)
-{
-}
-
-wxLibraries::~wxLibraries()
-{
- wxNode *node = m_loaded.GetFirst();
-
- while (node) {
- wxLibrary *lib = (wxLibrary *)node->GetData();
- delete lib;
-
- node = node->GetNext();
- }
-}
-
-wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
-{
- wxLibrary *lib;
- wxClassInfo *old_sm_first;
- wxNode *node = m_loaded.Find(name.GetData());
-
- if (node != NULL)
- return ((wxLibrary *)node->GetData());
-
- // If DLL shares data, this is necessary.
- old_sm_first = wxClassInfo::sm_first;
- wxClassInfo::sm_first = NULL;
-
- wxString libname = ConstructLibraryName(name);
-
- bool success = false;
- wxDllType handle = wxDllLoader::LoadLibrary(libname, &success);
- if(success)
- {
- lib = new wxLibrary(handle);
- wxClassInfo::sm_first = old_sm_first;
-
- m_loaded.Append(name.GetData(), lib);
- }
- else
- lib = NULL;
- return lib;
-}
-
-wxObject *wxLibraries::CreateObject(const wxString& path)
-{
- wxNode *node = m_loaded.GetFirst();
- wxObject *obj;
-
- while (node) {
- obj = ((wxLibrary *)node->GetData())->CreateObject(path);
- if (obj)
- return obj;
-
- node = node->GetNext();
- }
- return NULL;
-}
-
-#endif // WXWIN_COMPATIBILITY_2_2
-
-
#endif // wxUSE_DYNAMIC_LOADER
-
projects / wxWidgets.git / blobdiff