Added overloads for listener::accept() that can take scoped_ptr

objects as well as normal connection pointers.  Also reconciled
the type used for timeouts between the win32 and posix version
of the code.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402648

dlib/sockets/sockets_kernel_1.cpp

@@ -397,6 +397,24 @@ namespace dlib
         delete &listening_socket;
     }
 
+// ----------------------------------------------------------------------------------------
+
+    int listener::
+    accept (
+        scoped_ptr<connection>& new_connection,
+        unsigned long timeout
+    )
+    {
+        new_connection.reset(0);
+        connection* con;
+        int status = this->accept(con, timeout);
+
+        if (status == 0)
+            new_connection.reset(con);
+
+        return status;
+    }
+
 // ----------------------------------------------------------------------------------------
 
     int listener::

dlib/sockets/sockets_kernel_1.h

@@ -238,6 +238,11 @@ namespace dlib
             unsigned long timeout = 0
         );
 
+        int accept (
+            scoped_ptr<connection>& new_connection,
+            unsigned long timeout = 0
+        );
+
         unsigned short get_listening_port (
         ) { return listening_port; }
 

dlib/sockets/sockets_kernel_2.cpp

@@ -426,12 +426,30 @@ namespace dlib
         }
     }
 
+// ----------------------------------------------------------------------------------------
+
+    int listener::
+    accept (
+        scoped_ptr<connection>& new_connection,
+        unsigned long timeout
+    )
+    {
+        new_connection.reset(0);
+        connection* con;
+        int status = this->accept(con, timeout);
+
+        if (status == 0)
+            new_connection.reset(con);
+
+        return status;
+    }
+
 // ----------------------------------------------------------------------------------------
 
     int listener::
     accept (
         connection*& new_connection,
-        int timeout
+        unsigned long timeout
     )
     {
         int incoming;

dlib/sockets/sockets_kernel_2.h

@@ -283,7 +283,12 @@ namespace dlib
 
         int accept (
             connection*& new_connection,
-            int timeout = 0
+            unsigned long timeout = 0
+        );
+
+        int accept (
+            scoped_ptr<connection>& new_connection,
+            unsigned long timeout = 0
         );
 
         int get_listening_port (

dlib/sockets/sockets_kernel_abstract.h

@@ -397,6 +397,15 @@ namespace dlib
                 - returns OTHER_ERROR if an error has occurred 
         !*/
 
+        int accept (
+            scoped_ptr<connection>& new_connection,
+            unsigned long timeout = 0
+        );
+        /*!
+            This function is just an overload of the above function but it gives you a
+            scoped_ptr smart pointer instead of a C pointer.
+        !*/
+
         unsigned short get_listening_port (
         ) const;
         /*!