-Move ORefCount to a non inline implementation in osmartpointer.cpp

-Add OSharedPointer as a smart pointer adapter to adapt any pointer
 This is used by Opie PIM

Change pro file

4 files changed, 209 insertions, 19 deletions

diff --git a/libopie2/opiecore/opiecore.pro b/libopie2/opiecore/opiecore.pro
index 8189a7c..e72576c 100644
--- a/libopie2/opiecore/opiecore.pro
+++ b/libopie2/opiecore/opiecore.pro
@@ -10,8 +10,9 @@ HEADERS     = oapplication.h            \
               okeyfilter.h              \
 	      opluginloader.h           \
               oprocess.h                \
               oprocctrl.h               \
+	      osharedpointer.h          \
               osmartpointer.h           \
               ostorageinfo.h            \
               xmltree.h
 
@@ -24,8 +25,9 @@ SOURCES     = oapplication.cpp          \
               okeyfilter.cpp            \
 	      opluginloader.cpp         \
               oprocess.cpp              \
               oprocctrl.cpp             \	    
+	      osmartpointer.cpp         \
               ostorageinfo.cpp          \
               xmltree.cpp
 
 
diff --git a/libopie2/opiecore/osharedpointer.h b/libopie2/opiecore/osharedpointer.h
new file mode 100644
index 0000000..f19d836
--- a/dev/null
+++ b/libopie2/opiecore/osharedpointer.h
@@ -0,0 +1,136 @@
+// -*- Mode: C++; -*-
+/*
+                            This file is part of the Opie Project
+                            Copyright (C) 2004 Rajko Albrecht <alwin@handhelds.org>
+			    Copyright (C) 2004 Holger Hans Peter Freyther <freyther@handhelds.org>
+                            Copyright (C) The Opie Team <opie-devel@handhelds.org>
+             =.
+           .=l.
+          .>+-=
+_;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=         redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :          the terms of the GNU Library General Public
+.="- .-=="i,     .._        License as published by the Free Software
+- .   .-<_>     .<>         Foundation; either version 2 of the License,
+    ._= =}       :          or (at your option) any later version.
+   .%`+i>       _;_.
+   .i_,=:_.      -<s.       This program is distributed in the hope that
+    +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
+   : ..    .:,     . . .    without even the implied warranty of
+   =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
+ _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
+..}^=.=       =       ;     Library General Public License for more
+++=   -.     .`     .:      details.
+:     =  ...= . :.=-
+-.   .:....=;==+<;          You should have received a copy of the GNU
+ -_. . .   )=.  =           Library General Public License along with
+   --        :-=`           this library; see the file COPYING.LIB.
+                            If not, write to the Free Software Foundation,
+                            Inc., 59 Temple Place - Suite 330,
+                            Boston, MA 02111-1307, USA.
+*/
+
+
+#ifndef O_SHARED_POINTER_H
+#define O_SHARED_POINTER_H
+
+#include <opie2/osmartpointer.h>
+
+/*!
+ * \file  osharedpointer.h
+ * \brief Adapter with Refcounting around any data type
+ * \author Rajko Albrecht and Holger Hans Peter Freyther
+ */
+
+namespace Opie {
+namespace Core {
+template<class T>
+class OSharedPointerData : public ORefCount {
+public:
+    OSharedPointerData( T* dt ) {
+        data = dt;
+    }
+
+    ~OSharedPointerData() {
+        delete data;
+    }
+
+    T *data;
+};
+
+
+/**
+ * \brief A small Adapter around any Pointer
+ *
+ *
+ *
+ */
+template<class T>
+class OSharedPointer {
+    typedef OSharedPointerData<T> Data;
+    Data* data;
+
+    void unref() {
+        if (data) { data->Decr(); if (!data->Shared()) delete data; }
+        data = 0;
+    }
+
+public:
+    OSharedPointer () { data = 0;}
+
+    OSharedPointer( T* t ) {
+        data = new Data( t );
+        data->Incr();
+    }
+
+    OSharedPointer( const OSharedPointer<T>& p ) {
+        if ( data = p.data ) data->Incr();
+    }
+
+    ~OSharedPointer() {
+        unref();
+    }
+
+    OSharedPointer<T> &operator=( const OSharedPointer<T>& p ) {
+        // already same: nothing to do
+        if (data == p.data) return *this;
+        // decouple reference
+        unref();
+        // establish new reference
+        if (data = p.data) data->Incr();
+        return *this;
+    }
+
+    OSharedPointer<T> &operator=( T *p ) {
+        unref();
+        data = new Data( p );
+        data->Incr();
+
+        return *this;
+    }
+
+    operator T* () const { return data->data;  }
+    T& operator*()       { return *data->data; }
+    const T& operator*()const { return data->data; }
+
+    //! deref with method call
+    T* operator-> () {return data->data; }
+    //! deref with const method call
+    const T* operator-> ()const {return data->data; }
+
+
+    //! supports "if (pointer)"
+    operator bool () const { return (data != 0 && data->data != 0); }
+    //! "if (pointer)" as non const
+    operator bool () { return ( data != 0 && data->data != NULL );}
+
+    //! support if (!pointer)"
+    bool operator! () const { return (data == 0 || data->data == 0); }
+    //! support if (!pointer)" as non const
+    bool operator! () { return (data == 0 || data->data == 0); }
+};
+
+}
+}
+
+#endif
diff --git a/libopie2/opiecore/osmartpointer.cpp b/libopie2/opiecore/osmartpointer.cpp
new file mode 100644
index 0000000..480e03a
--- a/dev/null
+++ b/libopie2/opiecore/osmartpointer.cpp
@@ -0,0 +1,57 @@
+// -*- Mode: C++; -*-
+/*
+                            This file is part of the Opie Project
+                            Copyright (C) 2004 Rajko Albrecht <alwin@handhelds.org>
+                            Copyright (C) The Opie Team <opie-devel@handhelds.org>
+             =.
+           .=l.
+          .>+-=
+_;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=         redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :          the terms of the GNU Library General Public
+.="- .-=="i,     .._        License as published by the Free Software
+- .   .-<_>     .<>         Foundation; either version 2 of the License,
+    ._= =}       :          or (at your option) any later version.
+   .%`+i>       _;_.
+   .i_,=:_.      -<s.       This program is distributed in the hope that
+    +  .  -:.       =       it will be useful,  but WITHOUT ANY WARRANTY;
+   : ..    .:,     . . .    without even the implied warranty of
+   =_        +     =;=|`    MERCHANTABILITY or FITNESS FOR A
+ _.=:.       :    :=>`:     PARTICULAR PURPOSE. See the GNU
+..}^=.=       =       ;     Library General Public License for more
+++=   -.     .`     .:      details.
+:     =  ...= . :.=-
+-.   .:....=;==+<;          You should have received a copy of the GNU
+ -_. . .   )=.  =           Library General Public License along with
+   --        :-=`           this library; see the file COPYING.LIB.
+                            If not, write to the Free Software Foundation,
+                            Inc., 59 Temple Place - Suite 330,
+                            Boston, MA 02111-1307, USA.
+*/
+
+#include "osmartpointer.h"
+
+namespace Opie {
+namespace Core {
+
+ORefCount::ORefCount()
+    : m_RefCount(0)
+{}
+
+ORefCount::~ORefCount()
+{}
+
+void ORefCount::Incr() {
+    ++m_RefCount;
+}
+
+void ORefCount::Decr() {
+    --m_RefCount;
+}
+
+bool ORefCount::Shared() {
+    return (m_RefCount > 0);
+}
+
+}
+}
diff --git a/libopie2/opiecore/osmartpointer.h b/libopie2/opiecore/osmartpointer.h
index e9cee0c..f2f6464 100644
--- a/libopie2/opiecore/osmartpointer.h
+++ b/libopie2/opiecore/osmartpointer.h
@@ -2,9 +2,9 @@
 /*
                             This file is part of the Opie Project
                             Copyright (C) 2004 Rajko Albrecht <alwin@handhelds.org>
                             Copyright (C) The Opie Team <opie-devel@handhelds.org>
-             =.             
+             =.
            .=l.
           .>+-=
 _;:,     .>    :=|.         This program is free software; you can
 .> <`_,   >  .   <=         redistribute it and/or  modify it under
@@ -47,31 +47,26 @@ namespace Core {
 //! simple reference counter class
 class ORefCount {
 protected:
     //! reference count member
-    long m_RefCount;
+    unsigned long m_RefCount;
 public:
     //! first reference must be added after "new" via Pointer()
-    ORefCount() : m_RefCount(0)
-    {}
-    virtual ~ORefCount() {}
+    ORefCount();
+    virtual ~ORefCount();
     //! add a reference
-    void Incr() {
-        ++m_RefCount;
-    }
+    void Incr();
     //! delete a reference
-    void Decr() {
-        --m_RefCount;
-    }
+    void Decr();
     //! is it referenced
-    bool Shared() { return (m_RefCount > 0); }
+    bool Shared();
 };
 
 //! reference counting wrapper class
 template<class T> class OSmartPointer {
     //! pointer to object
     /*!
-     * this object must contain Incr(), Decr() and Shared() 
+     * this object must contain Incr(), Decr() and Shared()
      * methode as public members. The best way is, that it will be a child
      * class of RefCount
      */
     T *ptr;
@@ -93,17 +88,17 @@ public:
     }
     //! construction
     OSmartPointer(T* t) { if (ptr = t) ptr->Incr(); }
     //! Pointer copy
-    OSmartPointer(const OSmartPointer<T>& p) 
+    OSmartPointer(const OSmartPointer<T>& p)
     { if (ptr = p.ptr) ptr->Incr(); }
     //! pointer copy by assignment
-    OSmartPointer<T>& operator= (const OSmartPointer<T>& p) 
+    OSmartPointer<T>& operator= (const OSmartPointer<T>& p)
     {
         // already same: nothing to do
         if (ptr == p.ptr) return *this;
         // decouple reference
-        if (ptr) { ptr->Decr(); if (!ptr->Shared()) delete ptr; } 
+        if (ptr) { ptr->Decr(); if (!ptr->Shared()) delete ptr; }
         // establish new reference
         if (ptr = p.ptr) ptr->Incr();
         return *this;
     }
@@ -119,9 +114,9 @@ public:
     }
 
     //! cast to conventional pointer
     operator T* () const { return ptr; }
-    
+
     //! deref: fails for NULL pointer
     T& operator* () {return *ptr; }
     //! deref: fails for NULL pointer
     const T& operator* ()const {return *ptr; }
@@ -129,14 +124,14 @@ public:
     //! deref with method call
     T* operator-> () {return ptr; }
     //! deref with const method call
     const T* operator-> ()const {return ptr; }
-    
+
     //! supports "if (pointer)"
     operator bool () const { return (ptr != NULL); }
     //! "if (pointer)" as non const
     operator bool () { return ptr != NULL;}
-    
+
     //! support if (!pointer)"
     bool operator! () const { return (ptr == NULL); }
     //! support if (!pointer)" as non const
     bool operator! () { return (ptr == NULL); }