X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/42a245230195164b903533b72e5c809d14a7c858..12cca26a83405b5f7f29ce2c44c5f965d07ceafc:/src/common/dynlib.cpp

diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp
index ec3c142570..c631d06b30 100644
--- a/src/common/dynlib.cpp
+++ b/src/common/dynlib.cpp
@@ -5,10 +5,14 @@
 // Modified by:
 // Created:     20/07/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Guilhem Lavaux
+// Copyright:   (c) 1998 Guilhem Lavaux
+//                  2000-2005 Vadim Zeitlin
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+//FIXME:  This class isn't really common at all, it should be moved into
+//        platform dependent files (already done for Windows and Unix)
+
 // ============================================================================
 // declarations
 // ============================================================================
@@ -29,10 +33,6 @@
 
 #if wxUSE_DYNLIB_CLASS
 
-#if defined(__WINDOWS__)
-    #include "wx/msw/wrapwin.h"
-#endif
-
 #include "wx/dynlib.h"
 #include "wx/filefn.h"
 #include "wx/intl.h"
@@ -42,139 +42,46 @@
 #include "wx/app.h"
 #include "wx/apptrait.h"
 
+#include "wx/arrimpl.cpp"
+
 #if defined(__WXMAC__)
     #include "wx/mac/private.h"
 #endif
 
+WX_DEFINE_USER_EXPORTED_OBJARRAY(wxDynamicLibraryDetailsArray);
 
 // ============================================================================
 // implementation
 // ============================================================================
 
-#if defined(__DARWIN__)
-// ---------------------------------------------------------------------------
-// For Darwin/Mac OS X
-//   supply the sun style dlopen functions in terms of Darwin NS*
-// ---------------------------------------------------------------------------
-
-/* Porting notes:
- *   The dlopen port is a port from dl_next.xs by Anno Siegel.
- *   dl_next.xs is itself a port from dl_dlopen.xs by Paul Marquess.
- *   The method used here is just to supply the sun style dlopen etc.
- *   functions in terms of Darwin NS*.
- */
-
-#include <stdio.h>
-#include <mach-o/dyld.h>
-
-static char dl_last_error[1024];
-
-static
-void TranslateError(const char *path, int number)
-{
-    unsigned int index;
-    static char *OFIErrorStrings[] =
-    {
-        "%s(%d): Object Image Load Failure\n",
-        "%s(%d): Object Image Load Success\n",
-        "%s(%d): Not an recognisable object file\n",
-        "%s(%d): No valid architecture\n",
-        "%s(%d): Object image has an invalid format\n",
-        "%s(%d): Invalid access (permissions?)\n",
-        "%s(%d): Unknown error code from NSCreateObjectFileImageFromFile\n",
-    };
-#define NUM_OFI_ERRORS (sizeof(OFIErrorStrings) / sizeof(OFIErrorStrings[0]))
-
-    index = number;
-    if (index > NUM_OFI_ERRORS - 1) {
-        index = NUM_OFI_ERRORS - 1;
-    }
-    sprintf(dl_last_error, OFIErrorStrings[index], path, number);
-}
-
-const char *dlerror()
-{
-    return dl_last_error;
-}
-
-void *dlopen(const char *path, int WXUNUSED(mode) /* mode is ignored */)
-{
-    int dyld_result;
-    NSObjectFileImage ofile;
-    NSModule handle = NULL;
-
-    dyld_result = NSCreateObjectFileImageFromFile(path, &ofile);
-    if (dyld_result != NSObjectFileImageSuccess)
-    {
-        TranslateError(path, dyld_result);
-    }
-    else
-    {
-        // NSLinkModule will cause the run to abort on any link error's
-        // not very friendly but the error recovery functionality is limited.
-        handle = NSLinkModule(ofile, path, NSLINKMODULE_OPTION_BINDNOW);
-    }
-
-    return handle;
-}
-
-int dlclose(void *handle)
-{
-    NSUnLinkModule( handle, NSUNLINKMODULE_OPTION_NONE);
-    return 0;
-}
-
-void *dlsym(void *handle, const char *symbol)
-{
-    // as on many other systems, C symbols have prepended underscores under
-    // Darwin but unlike the normal dlopen(), NSLookupSymbolInModule() is not
-    // aware of this
-    NSSymbol nsSymbol = NSLookupSymbolInModule( handle,
-                                                wxString(_T('_')) + symbol );
-    return nsSymbol ? NSAddressOfSymbol(nsSymbol) : NULL;
-}
-
-#endif // defined(__DARWIN__)
-
-
 // ---------------------------------------------------------------------------
 // wxDynamicLibrary
 // ---------------------------------------------------------------------------
 
-//FIXME:  This class isn't really common at all, it should be moved into
-//        platform dependent files.
-
-#if defined(__WINDOWS__) || defined(__WXPM__) || defined(__EMX__)
+#if defined(__WXPM__) || defined(__EMX__)
     const wxChar *wxDynamicLibrary::ms_dllext = _T(".dll");
 #elif defined(__WXMAC__) && !defined(__DARWIN__)
-    const wxChar *wxDynamicLibrary::ms_dllext = _T("");
-#elif defined(__UNIX__)
-    #if defined(__HPUX__)
-        const wxChar *wxDynamicLibrary::ms_dllext = _T(".sl");
-    #elif defined(__DARWIN__)
-        const wxChar *wxDynamicLibrary::ms_dllext = _T(".bundle");
-    #else
-        const wxChar *wxDynamicLibrary::ms_dllext = _T(".so");
-    #endif
+    const wxChar *wxDynamicLibrary::ms_dllext = wxEmptyString;
 #endif
 
+// for MSW/Unix it is defined in platform-specific file
+#if !(defined(__WXMSW__) || defined(__UNIX__)) || defined(__EMX__)
+
 wxDllType wxDynamicLibrary::GetProgramHandle()
 {
-#if defined( HAVE_DLOPEN ) && !defined(__EMX__)
-   return dlopen(0, RTLD_LAZY);
-#elif defined (HAVE_SHL_LOAD)
-   return PROG_HANDLE;
-#else
-   wxFAIL_MSG( wxT("This method is not implemented under Windows or OS/2"));
+   wxFAIL_MSG( wxT("GetProgramHandle() is not implemented under this platform"));
    return 0;
-#endif
 }
 
-bool wxDynamicLibrary::Load(wxString libname, int flags)
+#endif // __WXMSW__ || __UNIX__
+
+
+bool wxDynamicLibrary::Load(const wxString& libnameOrig, int flags)
 {
     wxASSERT_MSG(m_handle == 0, _T("Library already loaded."));
 
     // add the proper extension for the DLL ourselves unless told not to
+    wxString libname = libnameOrig;
     if ( !(flags & wxDL_VERBATIM) )
     {
         // and also check that the libname doesn't already have it
@@ -213,100 +120,33 @@ bool wxDynamicLibrary::Load(wxString libname, int flags)
 
 #elif defined(__WXPM__) || defined(__EMX__)
     char    err[256] = "";
-    DosLoadModule(err, sizeof(err), libname.c_str(), &m_handle);
-
-#elif defined(HAVE_DLOPEN) || defined(__DARWIN__)
-
-#if defined(__VMS) || defined(__DARWIN__)
-    m_handle = dlopen(libname.fn_str(), 0);  // The second parameter is ignored
-#else // !__VMS  && !__DARWIN__
-    int rtldFlags = 0;
-
-    if ( flags & wxDL_LAZY )
-    {
-        wxASSERT_MSG( (flags & wxDL_NOW) == 0,
-                      _T("wxDL_LAZY and wxDL_NOW are mutually exclusive.") );
-#ifdef RTLD_LAZY
-        rtldFlags |= RTLD_LAZY;
+    DosLoadModule(err, sizeof(err), (PSZ)libname.c_str(), &m_handle);
 #else
-        wxLogDebug(_T("wxDL_LAZY is not supported on this platform"));
-#endif
-    }
-    else if ( flags & wxDL_NOW )
-    {
-#ifdef RTLD_NOW
-        rtldFlags |= RTLD_NOW;
-#else
-        wxLogDebug(_T("wxDL_NOW is not supported on this platform"));
-#endif
-    }
-
-    if ( flags & wxDL_GLOBAL )
-    {
-#ifdef RTLD_GLOBAL
-        rtldFlags |= RTLD_GLOBAL;
-#else
-        wxLogDebug(_T("RTLD_GLOBAL is not supported on this platform."));
-#endif
-    }
-
-    m_handle = dlopen(libname.fn_str(), rtldFlags);
-#endif  // __VMS || __DARWIN__ ?
-
-#elif defined(HAVE_SHL_LOAD)
-    int shlFlags = 0;
-
-    if( flags & wxDL_LAZY )
-    {
-        wxASSERT_MSG( (flags & wxDL_NOW) == 0,
-                      _T("wxDL_LAZY and wxDL_NOW are mutually exclusive.") );
-        shlFlags |= BIND_DEFERRED;
-    }
-    else if( flags & wxDL_NOW )
-    {
-        shlFlags |= BIND_IMMEDIATE;
-    }
-    m_handle = shl_load(libname.fn_str(), BIND_DEFERRED, 0);
-
-#elif defined(__WINDOWS__)
-    m_handle = ::LoadLibrary(libname.c_str());
-#else
-    #error  "runtime shared lib support not implemented on this platform"
+    m_handle = RawLoad(libname, flags);
 #endif
 
     if ( m_handle == 0 )
     {
-        wxString msg(_("Failed to load shared library '%s'"));
-#if defined(HAVE_DLERROR) && !defined(__EMX__)
-
-#if wxUSE_UNICODE
-        wxWCharBuffer buffer = wxConvLocal.cMB2WC( dlerror() );
-        const wxChar *err = buffer;
+#ifdef wxHAVE_DYNLIB_ERROR
+        Error();
 #else
-        const wxChar *err = dlerror();
-#endif
-
-        if( err )
-            wxLogError( msg, err );
-#else
-        wxLogSysError( msg, libname.c_str() );
+        wxLogSysError(_("Failed to load shared library '%s'"), libname.c_str());
 #endif
     }
 
     return IsLoaded();
 }
 
+// for MSW and Unix this is implemented in the platform-specific file
+//
+// TODO: move the rest to os2/dlpm.cpp and mac/dlmac.cpp!
+#if (!defined(__WXMSW__) && !defined(__UNIX__)) || defined(__EMX__)
+
 /* static */
 void wxDynamicLibrary::Unload(wxDllType handle)
 {
 #if defined(__WXPM__) || defined(__EMX__)
     DosFreeModule( handle );
-#elif defined(HAVE_DLOPEN) || defined(__DARWIN__)
-    dlclose( handle );
-#elif defined(HAVE_SHL_LOAD)
-    shl_unload( handle );
-#elif defined(__WINDOWS__)
-    ::FreeLibrary( handle );
 #elif defined(__WXMAC__) && !defined(__DARWIN__)
     CloseConnection( (CFragConnectionID*) &handle );
 #else
@@ -314,12 +154,13 @@ void wxDynamicLibrary::Unload(wxDllType handle)
 #endif
 }
 
-void *wxDynamicLibrary::GetSymbol(const wxString &name, bool *success) const
+#endif // !(__WXMSW__ || __UNIX__)
+
+void *wxDynamicLibrary::DoGetSymbol(const wxString &name, bool *success) const
 {
     wxCHECK_MSG( IsLoaded(), NULL,
                  _T("Can't load symbol from unloaded library") );
 
-    bool     failed = false;
     void    *symbol = 0;
 
     wxUnusedVar(symbol);
@@ -335,74 +176,47 @@ void *wxDynamicLibrary::GetSymbol(const wxString &name, bool *success) const
 #endif
     if( FindSymbol( m_handle, symName, &symAddress, &symClass ) == noErr )
         symbol = (void *)symAddress;
-
 #elif defined(__WXPM__) || defined(__EMX__)
-    DosQueryProcAddr( m_handle, 1L, name.c_str(), (PFN*)symbol );
-
-#elif defined(HAVE_DLOPEN) || defined(__DARWIN__)
-    symbol = dlsym( m_handle, name.fn_str() );
-
-#elif defined(HAVE_SHL_LOAD)
-    // use local variable since shl_findsym modifies the handle argument
-    // to indicate where the symbol was found (GD)
-    wxDllType the_handle = m_handle;
-    if( shl_findsym( &the_handle, name.fn_str(), TYPE_UNDEFINED, &symbol ) != 0 )
-        symbol = 0;
-
-#elif defined(__WINDOWS__)
-#ifdef __WXWINCE__
-    symbol = (void*) ::GetProcAddress( m_handle, name );
+    DosQueryProcAddr( m_handle, 1L, (PSZ)name.c_str(), (PFN*)symbol );
 #else
-    symbol = (void*) ::GetProcAddress( m_handle, name.mb_str() );
+    symbol = RawGetSymbol(m_handle, name);
 #endif
 
-#else
-#error  "runtime shared lib support not implemented"
-#endif
+    if ( success )
+        *success = symbol != NULL;
 
+    return symbol;
+}
+
+void *wxDynamicLibrary::GetSymbol(const wxString& name, bool *success) const
+{
+    void *symbol = DoGetSymbol(name, success);
     if ( !symbol )
     {
-#if defined(HAVE_DLERROR) && !defined(__EMX__)
-
-#if wxUSE_UNICODE
-        wxWCharBuffer buffer = wxConvLocal.cMB2WC( dlerror() );
-        const wxChar *err = buffer;
+#ifdef wxHAVE_DYNLIB_ERROR
+        Error();
 #else
-        const wxChar *err = dlerror();
-#endif
-
-        if( err )
-        {
-            wxLogError(wxT("%s"), err);
-        }
-#else
-        failed = true;
         wxLogSysError(_("Couldn't find symbol '%s' in a dynamic library"),
                       name.c_str());
 #endif
     }
-    if( success )
-        *success = !failed;
 
     return symbol;
 }
 
+// ----------------------------------------------------------------------------
+// informational methods
+// ----------------------------------------------------------------------------
 
 /*static*/
 wxString
 wxDynamicLibrary::CanonicalizeName(const wxString& name,
-                                   wxDynamicLibraryCategory
-#ifdef __UNIX__
-                                        cat
-#else // !__UNIX__
-                                        WXUNUSED(cat)
-#endif // __UNIX__/!__UNIX__
-                                   )
+                                   wxDynamicLibraryCategory cat)
 {
     wxString nameCanonic;
 
     // under Unix the library names usually start with "lib" prefix, add it
-#ifdef __UNIX__
+#if defined(__UNIX__) && !defined(__EMX__)
     switch ( cat )
     {
         default:
@@ -418,7 +232,9 @@ wxDynamicLibrary::CanonicalizeName(const wxString& name,
             nameCanonic = _T("lib");
             break;
     }
-#endif // __UNIX__
+#else // !__UNIX__
+    wxUnusedVar(cat);
+#endif // __UNIX__/!__UNIX__
 
     nameCanonic << name << GetDllExt();
     return nameCanonic;
@@ -448,7 +264,7 @@ wxString wxDynamicLibrary::CanonicalizePluginName(const wxString& name,
         suffix = wxString(_T("_")) + suffix;
 
 #define WXSTRINGIZE(x)  #x
-#ifdef __UNIX__
+#if defined(__UNIX__) && !defined(__EMX__)
     #if (wxMINOR_VERSION % 2) == 0
         #define wxDLLVER(x,y,z) "-" WXSTRINGIZE(x) "." WXSTRINGIZE(y)
     #else