[glib] Correct reference and implement close_fn (#578769)

[Tor Lillqvist <tml src gnome org>]

commit 209a662c2fb664bed2bf4e26bbda784ca7c0739d
Author: Hans Breuer <hans breuer org>
Date:   Wed May 27 15:12:31 2009 +0300

    Correct reference and implement close_fn (#578769)
    
    Do proper referencing and unreferencing of
    GWinHttpFileInputStream::file and
    GWinHttpFileInputStream::file::vfs. Implement
    GWinHttpFileInputStream::close_fn.
---
 gio/win32/gwinhttpfile.c            |    5 ++++-
 gio/win32/gwinhttpfileinputstream.c |   23 ++++++++++++++++++++++-
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/gio/win32/gwinhttpfile.c b/gio/win32/gwinhttpfile.c
index 6bd05b7..a4709ed 100644
--- a/gio/win32/gwinhttpfile.c
+++ b/gio/win32/gwinhttpfile.c
@@ -24,6 +24,7 @@
 
 #include "config.h"
 
+#include <stdio.h>
 #include <string.h>
 #include <wchar.h>
 
@@ -60,6 +61,8 @@ g_winhttp_file_finalize (GObject *object)
   g_free (file->url.lpszUrlPath);
   g_free (file->url.lpszExtraInfo);
 
+  g_object_unref (file->vfs);
+
   G_OBJECT_CLASS (g_winhttp_file_parent_class)->finalize (object);
 }
 
@@ -96,7 +99,7 @@ _g_winhttp_file_new (GWinHttpVfs *vfs,
     return NULL;
 
   file = g_object_new (G_TYPE_WINHTTP_FILE, NULL);
-  file->vfs = vfs;
+  file->vfs = g_object_ref (vfs);
 
   memset (&file->url, 0, sizeof (file->url));
   file->url.dwStructSize = sizeof (file->url);
diff --git a/gio/win32/gwinhttpfileinputstream.c b/gio/win32/gwinhttpfileinputstream.c
index 3a90374..f18a93a 100644
--- a/gio/win32/gwinhttpfileinputstream.c
+++ b/gio/win32/gwinhttpfileinputstream.c
@@ -57,6 +57,10 @@ static gssize g_winhttp_file_input_stream_read (GInputStream    *stream,
                                                 GCancellable    *cancellable,
                                                 GError         **error);
 
+static gboolean g_winhttp_file_input_stream_close (GInputStream  *stream,
+						   GCancellable  *cancellable,
+						   GError       **error);
+
 static void
 g_winhttp_file_input_stream_finalize (GObject *object)
 {
@@ -69,6 +73,9 @@ g_winhttp_file_input_stream_finalize (GObject *object)
   if (winhttp_stream->connection != NULL)
     G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (winhttp_stream->connection);
 
+  g_object_unref (winhttp_stream->file);
+  winhttp_stream->file = NULL;
+
   G_OBJECT_CLASS (g_winhttp_file_input_stream_parent_class)->finalize (object);
 }
 
@@ -81,6 +88,7 @@ g_winhttp_file_input_stream_class_init (GWinHttpFileInputStreamClass *klass)
   gobject_class->finalize = g_winhttp_file_input_stream_finalize;
 
   stream_class->read_fn = g_winhttp_file_input_stream_read;
+  stream_class->close_fn = g_winhttp_file_input_stream_close;
 }
 
 static void
@@ -105,7 +113,7 @@ _g_winhttp_file_input_stream_new (GWinHttpFile *file,
 
   stream = g_object_new (G_TYPE_WINHTTP_FILE_INPUT_STREAM, NULL);
 
-  stream->file = file;
+  stream->file = g_object_ref (file);
   stream->request_sent = FALSE;
   stream->connection = connection;
   stream->request = request;
@@ -156,3 +164,16 @@ g_winhttp_file_input_stream_read (GInputStream  *stream,
 
   return bytes_read;
 }
+
+static gboolean 
+g_winhttp_file_input_stream_close (GInputStream         *stream,
+				   GCancellable         *cancellable,
+				   GError              **error)
+{
+  GWinHttpFileInputStream *winhttp_stream = G_WINHTTP_FILE_INPUT_STREAM (stream);
+
+  if (winhttp_stream->connection != NULL)
+    G_WINHTTP_VFS_GET_CLASS (winhttp_stream->file->vfs)->funcs->pWinHttpCloseHandle (winhttp_stream->connection);
+  winhttp_stream->connection = NULL;
+  return TRUE;
+}