From cfceadbca71ddaf170ea3d869adb8ea4d91ea819 Mon Sep 17 00:00:00 2001
From: Marek Vavrusa <marek@vavrusa.com>
Date: Tue, 21 Oct 2008 21:53:14 +0200
Subject: [PATCH] Use boost::shared_ptr for reference counted memory handling

---
 ftdipp/ftdi.cpp |   46 ++++++++++++++++++++--------------------------
 ftdipp/ftdi.hpp |   13 +++++--------
 2 files changed, 25 insertions(+), 34 deletions(-)

diff --git a/ftdipp/ftdi.cpp b/ftdipp/ftdi.cpp
index 7c1ba60..5333d30 100644
--- a/ftdipp/ftdi.cpp
+++ b/ftdipp/ftdi.cpp
@@ -26,6 +26,15 @@ public:
     Private()
         :  ftdi(0), dev(0), open(false)
     {
+        ftdi = ftdi_new();
+    }
+
+    ~Private()
+    {
+        if(open)
+            ftdi_usb_close(ftdi);
+
+        ftdi_free(ftdi);
     }
 
     bool open;
@@ -43,18 +52,12 @@ public:
 Context::Context()
         : d( new Private() )
 {
-    d->ftdi = ftdi_new();
 }
 
 /*! \brief Destructor.
  */
 Context::~Context()
 {
-    if (d->open)
-        close();
-
-    ftdi_free(d->ftdi);
-    delete d;
 }
 
 bool Context::is_open()
@@ -341,7 +344,6 @@ Eeprom::Eeprom(Context* parent)
 
 Eeprom::~Eeprom()
 {
-    delete d;
 }
 
 void Eeprom::init_defaults()
@@ -387,44 +389,36 @@ int Eeprom::erase()
 class List::Private
 {
 public:
-    Private()
-            : list(0)
+    Private(struct ftdi_device_list* devlist)
+            : list(devlist)
     {}
 
+    ~Private()
+    {
+        ftdi_list_free(&list);
+    }
+
     struct ftdi_device_list* list;
 };
 
 List::List(struct ftdi_device_list* devlist)
-        : ListBase(), d( new Private() )
+        : ListBase(), d( new Private(devlist) )
 {
     if (devlist != 0)
     {
         // Iterate list
-        Context* c = 0;
         for (d->list = devlist; d->list != 0; d->list = d->list->next)
         {
-            c = new Context();
-            c->set_usb_device(d->list->dev);
+            Context c;
+            c.set_usb_device(d->list->dev);
+            c.get_strings();
             push_back(c);
         }
-
-        // Store pointer
-        d->list = devlist;
     }
 }
 
 List::~List()
 {
-    // Deallocate instances
-    for (iterator it = begin(); it != end(); it++)
-        delete *it;
-
-    // Clear list
-    clear();
-    ftdi_list_free(&d->list);
-
-    // Delete d-ptr
-    delete d;
 }
 
 List* List::find_all(int vendor, int product)
diff --git a/ftdipp/ftdi.hpp b/ftdipp/ftdi.hpp
index 77aee85..478d9a4 100644
--- a/ftdipp/ftdi.hpp
+++ b/ftdipp/ftdi.hpp
@@ -19,6 +19,7 @@
 
 #include <list>
 #include <string>
+#include <boost/shared_ptr.hpp>
 #include "ftdi.h"
 
 namespace Ftdi
@@ -124,11 +125,7 @@ protected:
 
 private:
     class Private;
-    Private *d;
-
-    /* Disable copy constructor */
-    Context(const Context &) {}
-    Context& operator=(const Context &) {}
+    boost::shared_ptr<Private> d;
 };
 
 /*! \brief Device EEPROM.
@@ -150,10 +147,10 @@ public:
 
 private:
     class Private;
-    Private *d;
+    boost::shared_ptr<Private> d;
 };
 
-typedef std::list<Context*> ListBase;
+typedef std::list<Context> ListBase;
 
 /*! \brief Device list.
  */
@@ -167,7 +164,7 @@ public:
 
 private:
     class Private;
-    Private *d;
+    boost::shared_ptr<Private> d;
 };
 
 }
-- 
1.7.1