X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/509201463dbd3bce8aff762c664b111a8f2c3412..5701b057fb4b5bf672da2fb19230d179f7f3e251:/src/common/dynlib.cpp

diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp
index b4a60768fb..26844dfc05 100644
--- a/src/common/dynlib.cpp
+++ b/src/common/dynlib.cpp
@@ -18,14 +18,14 @@
 // ----------------------------------------------------------------------------
 
 #ifdef __GNUG__
-    #pragma implementation "dynlib.h"
+#   pragma implementation "dynlib.h"
 #endif
 
 #include  "wx/wxprec.h"
 
-#ifdef    __BORLANDC__
+#ifdef __BORLANDC__
   #pragma hdrstop
-#endif  //__BORLANDC__
+#endif
 
 #if wxUSE_DYNLIB_CLASS
 
@@ -40,12 +40,12 @@
 // ----------------------------------------------------------------------------
 
 #if defined(HAVE_DLOPEN)
-    #define wxDllOpen(lib)                dlopen(lib.fn_str(), RTLD_LAZY)
-    #define wxDllGetSymbol(handle, name)  dlsym(handle, name.mb_str())
-    #define wxDllClose                    dlclose
+#   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
+#   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)
     {
@@ -56,18 +56,18 @@
             return (void *)0;
     }
 #elif defined(__WINDOWS__)
-    #include <windows.h>
+#   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
+#   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
 
 // ---------------------------------------------------------------------------
@@ -87,11 +87,11 @@ static wxString ConstructLibraryName(const wxString& basename)
     wxString fullname(basename);
 
 #if defined(__UNIX__)
-    #if defined(__HPUX__)
+#   if defined(__HPUX__)
         fullname << ".sl";
-    #else	//__HPUX__
+#   else	//__HPUX__
         fullname << ".so";
-    #endif	//__HPUX__
+#   endif	//__HPUX__
 #elif defined(__WINDOWS__)
     fullname << ".dll";
 #endif
@@ -103,6 +103,7 @@ static wxString ConstructLibraryName(const wxString& basename)
 // implementation
 // ============================================================================
 
+
 // ---------------------------------------------------------------------------
 // wxLibrary (one instance per dynamic library)
 // ---------------------------------------------------------------------------
@@ -163,6 +164,74 @@ void wxLibrary::PrepareClasses(wxClassInfo *first)
 }
 
 void *wxLibrary::GetSymbol(const wxString& symbname)
+{
+   return wxDllLoader::GetSymbol(m_handle, symbname);
+}
+
+// ---------------------------------------------------------------------------
+// wxDllLoader
+// ---------------------------------------------------------------------------
+
+/* static */
+wxDllType
+wxDllLoader::GetProgramHandle(void)
+{
+#ifdef __UNIX__
+    return dlopen(NULL, RTLD_NOW/*RTLD_LAZY*/);
+#else
+    wxFAIL_MSG(_("This method is not implemented under Windows"));
+
+    return 0;
+#endif
+}
+
+/* static */
+wxDllType
+wxDllLoader::LoadLibrary(const wxString & libname, bool *success)
+{
+    wxDllType handle;
+
+#if defined(__WXMAC__)
+    FSSpec myFSSpec ;
+    Ptr	myMainAddr ;
+    Str255	myErrName ;
+
+    wxMacPathToFSSpec( libname , &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(libname);
+#endif // OS
+
+    if ( !handle )
+    {
+        wxLogSysError(_("Failed to load shared library '%s'"), libname.c_str());
+    }
+
+    if ( success )
+    {
+        *success = handle != 0;
+    }
+
+    return handle;
+}
+
+
+/* static */
+void
+wxDllLoader::UnloadLibrary(wxDllType handle)
+{
+   wxDllClose(handle);
+}
+
+/* static */
+void *
+wxDllLoader::GetSymbol(wxDllType dllHandle, const wxString &name)
 {
     void *symbol = NULL;    // return value
 
@@ -171,23 +240,20 @@ void *wxLibrary::GetSymbol(const wxString& symbname)
     CFragSymbolClass symClass ;
     Str255	symName ;
 
-    strcpy( (char*) symName , symbname ) ;
+    strcpy( (char*) symName , name ) ;
     c2pstr( (char*) symName ) ;
 
-    if ( FindSymbol( m_handle , symName , &symAddress , &symClass ) == noErr )
-    {
-        symbol = (void *)symAddress ; 
-    }
+    if ( FindSymbol( dllHandle , symName , &symAddress , &symClass ) == noErr )
+        symbol = (void *)symAddress ;
 #else
-    symbol = wxDllGetSymbol(m_handle, symbname);
+    symbol = wxDllGetSymbol(dllHandle, name);
 #endif
 
     if ( !symbol )
     {
         wxLogSysError(_("Couldn't find symbol '%s' in a dynamic library"),
-                      symbname.c_str());
+                      name.c_str());
     }
-
     return symbol;
 }
 
@@ -224,8 +290,12 @@ wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
     old_sm_first = wxClassInfo::sm_first;
     wxClassInfo::sm_first = NULL;
 
-    wxString lib_name = ConstructLibraryName(name);
+    wxString libname = ConstructLibraryName(name);
 
+/*
+  Unix automatically builds that library name, at least for dlopen()
+*/
+#if 0
 #if defined(__UNIX__)
     // found the first file in LD_LIBRARY_PATH with this name
     wxString libPath("/lib:/usr/lib"); // system path first
@@ -237,10 +307,10 @@ wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
     {
         wxString fullname(tokenizer.NextToken());
 
-        fullname << '/' << lib_name;
+        fullname << '/' << libname;
         if ( wxFileExists(fullname) )
         {
-            lib_name = fullname;
+            libname = fullname;
 
             // found the library
             break;
@@ -249,40 +319,18 @@ wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
     //else: not found in the path, leave the name as is (secutiry risk?)
 
 #endif // __UNIX__
+#endif
 
-    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 )
+    bool success = FALSE;
+    wxDllType handle = wxDllLoader::LoadLibrary(libname, &success);
+    if(success)
     {
-        wxLogSysError(_("Failed to load shared library '%s'"),
-                      lib_name.c_str());
-
-        return NULL;
+       lib = new wxLibrary(handle);
+       wxClassInfo::sm_first = old_sm_first;
+       m_loaded.Append(name.GetData(), lib);
     }
-
-    lib = new wxLibrary(handle);
-
-    wxClassInfo::sm_first = old_sm_first;
-
-    m_loaded.Append(name.GetData(), lib);
-
+    else
+       lib = NULL;
     return lib;
 }