HP-UX support added

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1751 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/dynlib.h b/include/wx/dynlib.h
index ceecce4a5842bcea2940498ff5fac51c2175a981..745cdddcd0eaeaefcb87135d4e4672ce723e91ce 100644 (file)
--- a/include/wx/dynlib.h
+++ b/include/wx/dynlib.h
@@ -1,68 +1,101 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        dynlib.cpp
+// Purpose:     Dynamic library management
+// Author:      Guilhem Lavaux
+// Modified by:
+// Created:     20/07/98
+// RCS-ID:      $Id$
+// Copyright:   (c) Guilhem Lavaux
+// Licence:     wxWindows license
+/////////////////////////////////////////////////////////////////////////////
+

 #ifndef _WX_DYNLIB_H__
 #define _WX_DYNLIB_H__
 
 #ifdef __GNUG__
 #ifndef _WX_DYNLIB_H__
 #define _WX_DYNLIB_H__
 
 #ifdef __GNUG__

-#pragma interface
+    #pragma interface

 #endif
 
 #include <wx/string.h>
 #include <wx/list.h>
 #endif
 
 #include <wx/string.h>
 #include <wx/list.h>

-#include <wx/dynarray.h>

 #include <wx/hash.h>
 
 #include <wx/hash.h>
 

+#if defined(HAVE_DLOPEN)
+    #include <dlfcn.h>
+
+    typedef void *wxDllType;
+#elif defined(HAVE_SHLLOAD)
+    #include <dl.h>
+
+    typedef void *wxDllType;
+#elif defined(__WINDOWS__)
+    #include <windows.h>
+
+    typedef HMODULE wxDllType;
+#elif defined(__WXMAC__)
+    typedef CFragConnectionID wxDllType;
+#else
+    #error "wxLibrary can't be compiled on this platform, sorry."
+#endif // OS
+
+// defined in windows.h

 #ifdef LoadLibrary
 #ifdef LoadLibrary

-#undef LoadLibrary
+    #undef LoadLibrary

 #endif
 
 #endif
 

-// ---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------

 // wxLibrary
 // wxLibrary

+// ----------------------------------------------------------------------------

 
 

-class wxLibrary: public wxObject {
- protected:
-  void *m_handle;
-  bool m_destroy;
- public:
-  wxHashTable classTable;
+class wxLibrary : public wxObject
+{
+public:
+    wxHashTable classTable;

 
 

- public:
-  wxLibrary(void *handle);
-  ~wxLibrary(void);
+public:
+    wxLibrary(void *handle);
+    ~wxLibrary();

 
 

-  // Get a symbol from the dynamic library
-  void *GetSymbol(const wxString& symbname);
+    // Get a symbol from the dynamic library
+    void *GetSymbol(const wxString& symbname);

 
 

-  // Create the object whose classname is "name"
-  wxObject *CreateObject(const wxString& name);
+    // Create the object whose classname is "name"
+    wxObject *CreateObject(const wxString& name);

 
 

-  // Merge the symbols with the main symbols: WARNING! the library will not
-  // be unloaded.
-  void MergeWithSystem();
+protected:
+    void PrepareClasses(wxClassInfo *first);

 
 

- protected:
-  void PrepareClasses(wxClassInfo *first);
+    wxDllType m_handle;

 };
 
 };
 

-// ---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------

 // wxLibraries
 // wxLibraries

+// ----------------------------------------------------------------------------
+
+class wxLibraries
+{
+public:
+    wxLibraries();
+    ~wxLibraries();

 
 

-class wxLibraries {
- protected:
-  wxList m_loaded;
- public:
-  wxLibraries(void);
-  ~wxLibraries(void);
+    // caller is responsible for deleting the returned pointer if !NULL
+    wxLibrary *LoadLibrary(const wxString& basename);

 
 

-  wxLibrary *LoadLibrary(const wxString& name);
-  wxObject *CreateObject(const wxString& name);
+    wxObject *CreateObject(const wxString& name);
+
+protected:
+    wxList m_loaded;

 };
 
 };
 

-// ---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------

 // Global variables
 // Global variables

+// ----------------------------------------------------------------------------

 
 extern wxLibraries wxTheLibraries;
 
 
 extern wxLibraries wxTheLibraries;
 

-// ---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------

 // Interesting defines
 // Interesting defines

+// ----------------------------------------------------------------------------

 
 #define WXDLL_ENTRY_FUNCTION() \
 extern "C" wxClassInfo *wxGetClassFirst(); \
 
 #define WXDLL_ENTRY_FUNCTION() \
 extern "C" wxClassInfo *wxGetClassFirst(); \


@@ -70,4 +103,4 @@ wxClassInfo *wxGetClassFirst() { \
   return wxClassInfo::GetFirst(); \
 }
 
   return wxClassInfo::GetFirst(); \
 }
 

-#endif
+#endif // _WX_DYNLIB_H__

diff --git a/src/common/dynlib.cpp b/src/common/dynlib.cpp
index 6b8bf78e38f06d4cbd4e15fbae7ad8120acd3db8..409b45ff4eecb5f3ab79917732e16e4f78973b27 100644 (file)
--- a/src/common/dynlib.cpp
+++ b/src/common/dynlib.cpp
@@ -9,8 +9,16 @@
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 

+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+

 #ifdef __GNUG__
 #ifdef __GNUG__

-#pragma implementation "dynlib.h"
+    #pragma implementation "dynlib.h"

 #endif
 
 #include  "wx/wxprec.h"
 #endif
 
 #include  "wx/wxprec.h"


@@ -19,120 +27,169 @@
   #pragma hdrstop
 #endif  //__BORLANDC__
 
   #pragma hdrstop
 #endif  //__BORLANDC__
 

-#ifndef WX_PRECOMP
-#endif //WX_PRECOMP
-
-#include <wx/dynlib.h>
-#include <wx/filefn.h>
-#include <wx/list.h>
-#include <wx/string.h>
+// TODO should be done by configure
+#if defined(__UNIX__) && !(defined(HAVE_DLOPEN) || defined(HAVE_SHLLOAD))
+    #if defined(__LINUX__) || defined(__SOLARIS__) || defined(__SUNOS__)
+        #ifndef HAVE_DLOPEN
+            #define HAVE_DLOPEN
+        #endif
+    #elif defined(__HPUX__)
+        #ifndef HAVE_SHLLOAD
+            #define HAVE_SHLLOAD
+        #endif
+    #endif // Unix flavour
+#endif // !Unix or already have some HAVE_xxx defined
+
+#include "wx/dynlib.h"
+#include "wx/filefn.h"
+#include "wx/intl.h"
+#include "wx/log.h"
+
+// ----------------------------------------------------------------------------
+// conditional compilation
+// ----------------------------------------------------------------------------
+
+#if defined(HAVE_DLOPEN)
+    #define wxDllOpen(lib)                dlopen(lib, RTLD_LAZY)
+    #define wxDllGetSymbol(handle, name)  dlsym(handle, (char *)name)
+    #define wxDllClose                    dlclose
+#elif defined(HAVE_SHLLOAD)
+    #define wxDllOpen(lib)                shl_open(lib, BIND_DEFERRED, 0)
+    #define wxDllClose      shl_unload
+
+    static inline void *wxDllGetSymbol(shl_t *handle, const char *name)
+    {
+        void *sym;
+        if ( shl_findsym(handle, name, TYPE_UNDEFINED, &sym) == 0 )
+            return sym;
+        else
+            return (void *)0;
+    }
+#elif defined(__WINDOWS__)
+    #define wxDllOpen(lib)                  ::LoadLibrary(lib)
+    #define wxDllGetSymbol(handle, name)    ::GetProcAddress(handle, name)
+    #define wxDllClose                      ::FreeLibrary
+#else
+    #error "Don't know how to load shared libraries on this platform."
+#endif // OS

 
 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------

-// System dependent include
+// Global variables

 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------
 

-#if defined(__UNIX__)
-#include <dlfcn.h>
-#endif
+wxLibraries wxTheLibraries;

 
 

-#ifdef __WINDOWS__
-#include <windows.h>
-#endif
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------

 
 

-#ifdef LoadLibrary
-#undef LoadLibrary
+// 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(basename);
+
+#if defined(__UNIX__)
+    fullname << ".so";
+#elif defined(__WINDOWS__)
+    fullname << ".dll";

 #endif
 
 #endif
 

-// ---------------------------------------------------------------------------
-// Global variables
-// ---------------------------------------------------------------------------
+    return fullname;
+}

 
 

-wxLibraries wxTheLibraries;
+// ============================================================================
+// implementation
+// ============================================================================

 
 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------

-// wxLibrary (one instance per dynamic library
+// wxLibrary (one instance per dynamic library)

 // ---------------------------------------------------------------------------
 
 // ---------------------------------------------------------------------------
 

-wxLibrary::wxLibrary(void *handle)
+wxLibrary::wxLibrary(wxDllType handle)

 {
 {

-  typedef wxClassInfo *(*t_get_first)(void);
-  t_get_first get_first;
+    typedef wxClassInfo *(*t_get_first)(void);
+    t_get_first get_first;

 
 

-  m_handle = handle;
-  m_destroy = TRUE;
+    m_handle = handle;

 
 

-  // Some system may use a local heap for library.
-  get_first = (t_get_first)GetSymbol("wxGetClassFirst");
-  // It is a wxWindows DLL.
-  if (get_first)
-    PrepareClasses(get_first());
+    // Some system may use a local heap for library.
+    get_first = (t_get_first)GetSymbol("wxGetClassFirst");
+    // It is a wxWindows DLL.
+    if (get_first)
+        PrepareClasses(get_first());

 }
 
 wxLibrary::~wxLibrary()
 {
 }
 
 wxLibrary::~wxLibrary()
 {

-  if (m_handle && m_destroy) {
-#if defined(__UNIX__)
-    dlclose(m_handle);
-#endif
-#ifdef __WINDOWS__
-    FreeLibrary((HMODULE)m_handle);
-#endif
-  }
+    if ( m_handle )
+    {
+        wxDllClose(m_handle);
+    }

 }
 
 wxObject *wxLibrary::CreateObject(const wxString& name)
 {
 }
 
 wxObject *wxLibrary::CreateObject(const wxString& name)
 {

-  wxClassInfo *info = (wxClassInfo *)classTable.Get(name);
+    wxClassInfo *info = (wxClassInfo *)classTable.Get(name);

 
 

-  if (!info)
-    return NULL;
+    if (!info)
+        return NULL;

 
 

-  return info->CreateObject();
+    return info->CreateObject();

 }
 
 void wxLibrary::PrepareClasses(wxClassInfo *first)
 {
 }
 
 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->GetNext();
-  }
-
-  // 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;
-  }
+    // 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->GetNext();
+    }
+
+    // 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;
+    }

 }
 
 void *wxLibrary::GetSymbol(const wxString& symbname)
 {
 }
 
 void *wxLibrary::GetSymbol(const wxString& symbname)
 {

-#if defined(__UNIX__)
-  return dlsym(m_handle, WXSTRINGCAST symbname);
-#elif defined( __WINDOWS__ )
-  return GetProcAddress((HINSTANCE) m_handle, WXSTRINGCAST symbname);
-#elif defined( __WXMAC__ )
-  Ptr symAddress ;
-  CFragSymbolClass symClass ;
-  Str255       symName ;
-       
-  strcpy( (char*) symName , symbname ) ;
-  c2pstr( (char*) symName ) ;
-       
-  if ( FindSymbol( (CFragConnectionID) m_handle , symName , &symAddress , &symClass ) == noErr )
-  {
-    return symAddress ; 
-  }
+    void *symbol = NULL;    // return value
+
+#if defined( __WXMAC__ )
+    Ptr symAddress ;
+    CFragSymbolClass symClass ;
+    Str255     symName ;
+
+    strcpy( (char*) symName , symbname ) ;
+    c2pstr( (char*) symName ) ;
+
+    if ( FindSymbol( m_handle , symName , &symAddress , &symClass ) == noErr )
+    {
+        symbol = (void *)symAddress ; 
+    }
+#else
+    // VZ: hmm... why is WXSTRINGCAST needed? if it's really modified, we
+    //     should make a copy of it
+    symbol = wxDllGetSymbol(m_handle, WXSTRINGCAST symbname);

 #endif
 #endif

-  return NULL;
+
+    if ( !symbol )
+    {
+        wxLogSysError(_("Couldn't find symbol '%s' in a dynamic library"),
+                      symbname.c_str());
+    }
+
+    return symbol;

 }
 
 // ---------------------------------------------------------------------------
 }
 
 // ---------------------------------------------------------------------------


@@ -145,93 +202,83 @@ wxLibraries::wxLibraries()
 
 wxLibraries::~wxLibraries()
 {
 
 wxLibraries::~wxLibraries()
 {

-  wxNode *node = m_loaded.First();
+    wxNode *node = m_loaded.First();

 
 

-  while (node) {
-    wxLibrary *lib = (wxLibrary *)node->Data();
-    delete lib;
+    while (node) {
+        wxLibrary *lib = (wxLibrary *)node->Data();
+        delete lib;

 
 

-    node = node->Next();
-  }
+        node = node->Next();
+    }

 }
 
 wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
 {
 }
 
 wxLibrary *wxLibraries::LoadLibrary(const wxString& name)
 {

-  wxString lib_name = name;
-  wxNode *node;
-  wxLibrary *lib;
-  wxClassInfo *old_sm_first;
+    wxNode *node;
+    wxLibrary *lib;
+    wxClassInfo *old_sm_first;

 
 

-  if ( (node = m_loaded.Find(name.GetData())) )
-    return ((wxLibrary *)node->Data());
+    if ( (node = m_loaded.Find(name.GetData())) )
+        return ((wxLibrary *)node->Data());

 
 

-  // If DLL shares data, this is necessary.
-  old_sm_first = wxClassInfo::sm_first;
-  wxClassInfo::sm_first = NULL;
+    // If DLL shares data, this is necessary.
+    old_sm_first = wxClassInfo::sm_first;
+    wxClassInfo::sm_first = NULL;
+
+    wxString lib_name = ConstructLibraryName(name);

 
 #if defined(__UNIX__)
 
 #if defined(__UNIX__)

-  lib_name.Prepend("./lib");
-  lib_name += ".so";
+    // TODO use LD_LIBRARY_PATH!
+    lib_name.Prepend("/lib");
+#endif // __UNIX__

 
 

-  printf("lib_name = %s\n", WXSTRINGCAST lib_name);
+    wxDllType handle ;

 
 

-  void *handle = dlopen(WXSTRINGCAST lib_name, RTLD_LAZY);
+#if defined(__WXMAC__)
+    FSSpec myFSSpec ;
+    Ptr        myMainAddr ;
+    Str255     myErrName ;

 
 

-  printf("error = %s\n", dlerror());
+    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)
-    return NULL;
-#elif defined(__WINDOWS__)
-  lib_name += ".dll";
+    if ( !handle )
+    {
+        wxLogSysError(_("Failed to load shared library '%s'"),
+                      lib_name.c_str());

 
 

-#ifdef UNICODE
-  HMODULE handle = LoadLibraryW(lib_name);
-#else
-#ifdef __WIN16__
-  HMODULE handle = ::LoadLibrary(lib_name);
-#else
-  HMODULE handle = LoadLibraryA(lib_name);
-#endif
-#endif
-  if (!handle)
-    return NULL;
-#elif defined(__WXMAC__)
-  FSSpec myFSSpec ;
-  CFragConnectionID handle ;
-  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
-  return NULL;
-#endif
+        return NULL;
+    }

 
 

-  lib = new wxLibrary((void *)handle);
+    lib = new wxLibrary(handle);

 
 

-  wxClassInfo::sm_first = old_sm_first;
+    wxClassInfo::sm_first = old_sm_first;

 
 

-  m_loaded.Append(name.GetData(), lib);
-  return lib;
+    m_loaded.Append(name.GetData(), lib);
+
+    return lib;

 }
 
 wxObject *wxLibraries::CreateObject(const wxString& path)
 {
 }
 
 wxObject *wxLibraries::CreateObject(const wxString& path)
 {

-  wxNode *node = m_loaded.First();
-  wxObject *obj;
+    wxNode *node = m_loaded.First();
+    wxObject *obj;

 
 

-  while (node) {
-    obj = ((wxLibrary *)node->Data())->CreateObject(path);
-    if (obj)
-      return obj;
+    while (node) {
+        obj = ((wxLibrary *)node->Data())->CreateObject(path);
+        if (obj)
+            return obj;

 
 

-    node = node->Next();
-  }
-  return NULL;
+        node = node->Next();
+    }
+    return NULL;

 }
 }