[gnome-logs/wip/current-boot: 7/7] Make GlJournalResult a ref-counted boxed type

[David King <davidk src gnome org>]

commit b5a7ed7566859af9130005da1b248a9e2f32f119
Author: David King <davidk gnome org>
Date:   Fri Nov 1 10:54:24 2013 +0000

    Make GlJournalResult a ref-counted boxed type

 src/gl-eventview.c |   14 +++++++-------
 src/gl-journal.c   |   46 +++++++++++++++++++++++++++++-----------------
 src/gl-journal.h   |   10 ++++++++--
 3 files changed, 44 insertions(+), 26 deletions(-)
---
diff --git a/src/gl-eventview.c b/src/gl-eventview.c
index 6851063..5785c9f 100644
--- a/src/gl-eventview.c
+++ b/src/gl-eventview.c
@@ -125,7 +125,7 @@ listbox_search_filter_func (GtkListBoxRow *row,
         {
             if (search_in_result (result, priv->search_text))
             {
-                gl_journal_result_free (priv->journal, result);
+                gl_journal_result_unref (result);
 
                 return TRUE;
             }
@@ -165,7 +165,7 @@ listbox_search_filter_func (GtkListBoxRow *row,
             g_free (casefolded_text);
         }
 
-        gl_journal_result_free (priv->journal, result);
+        gl_journal_result_unref (result);
     }
 
 out:
@@ -242,7 +242,7 @@ on_listbox_row_activated (GtkListBox *listbox,
     gtk_stack_add_named (stack, grid, "detail");
     gl_event_view_set_mode (view, GL_EVENT_VIEW_MODE_DETAIL);
 
-    gl_journal_result_free (priv->journal, result);
+    gl_journal_result_unref (result);
     return;
 }
 
@@ -541,7 +541,7 @@ insert_journal_query_devices (GlEventView *view,
         g_free (time);
     }
 
-    gl_journal_results_free (priv->journal, results);
+    gl_journal_results_free (results);
 }
 
 static void
@@ -632,7 +632,7 @@ insert_journal_query_security (GlEventView *view,
         g_free (time);
     }
 
-    gl_journal_results_free (priv->journal, results);
+    gl_journal_results_free (results);
 }
 
 static void
@@ -705,7 +705,7 @@ insert_journal_query_simple (GlEventView *view,
         g_free (time);
     }
 
-    gl_journal_results_free (priv->journal, results);
+    gl_journal_results_free (results);
 }
 
 static void
@@ -789,7 +789,7 @@ insert_journal_query_cmdline (GlEventView *view,
         g_free (time);
     }
 
-    gl_journal_results_free (priv->journal, results);
+    gl_journal_results_free (results);
 }
 
 static GtkWidget *
diff --git a/src/gl-journal.c b/src/gl-journal.c
index af4a1bb..a7a4671 100644
--- a/src/gl-journal.c
+++ b/src/gl-journal.c
@@ -31,6 +31,9 @@ typedef struct
 
 G_DEFINE_TYPE_WITH_PRIVATE (GlJournal, gl_journal, G_TYPE_OBJECT)
 
+G_DEFINE_BOXED_TYPE (GlJournalResult, gl_journal_result, gl_journal_result_ref,
+                     gl_journal_result_unref)
+
 GQuark
 gl_journal_error_quark (void)
 {
@@ -203,6 +206,8 @@ _gl_journal_query_result (GlJournal *self)
 
     result = g_slice_new (GlJournalResult);
 
+    result->ref_count = 1;
+
     ret = sd_journal_get_realtime_usec (journal, &result->timestamp);
 
     if (ret < 0)
@@ -491,32 +496,39 @@ out:
 }
 
 static void
-_gl_journal_result_free (GlJournalResult *result,
-                         G_GNUC_UNUSED gpointer user_data)
+gl_journal_result_free (GlJournalResult *result,
+                        G_GNUC_UNUSED gpointer user_data)
 {
-    free (result->cursor);
-    free (result->catalog);
-    g_free (result->message);
-    g_free (result->comm);
-    g_free (result->kernel_device);
-    g_free (result->audit_session);
-    g_slice_free (GlJournalResult, result);
+    gl_journal_result_unref (result);
 }
 
 void
-gl_journal_result_free (G_GNUC_UNUSED GlJournal *self,
-                        GlJournalResult *result)
+gl_journal_results_free (GList *results)
 {
-    _gl_journal_result_free (result, NULL);
+    g_list_foreach (results, (GFunc)gl_journal_result_free, NULL);
+    g_list_free (results);
+}
+
+GlJournalResult *
+gl_journal_result_ref (GlJournalResult *result)
+{
+    g_atomic_int_inc (&result->ref_count);
+    return result;
 }
 
 void
-gl_journal_results_free (G_GNUC_UNUSED GlJournal *self,
-                         GList *results)
+gl_journal_result_unref (GlJournalResult *result)
 {
-    /* As self is unused, ignore it. */
-    g_list_foreach (results, (GFunc)_gl_journal_result_free, NULL);
-    g_list_free (results);
+    if (g_atomic_int_dec_and_test (&result->ref_count))
+    {
+        free (result->cursor);
+        free (result->catalog);
+        g_free (result->message);
+        g_free (result->comm);
+        g_free (result->kernel_device);
+        g_free (result->audit_session);
+        g_slice_free (GlJournalResult, result);
+    }
 }
 
 GlJournal *
diff --git a/src/gl-journal.h b/src/gl-journal.h
index 47f3e37..e6ab003 100644
--- a/src/gl-journal.h
+++ b/src/gl-journal.h
@@ -51,6 +51,10 @@ typedef struct
 
 typedef struct
 {
+    /*< private >*/
+    guint ref_count;
+
+    /*< public >*/
     guint64 timestamp;
     gchar *cursor;
     gchar *message;
@@ -76,10 +80,12 @@ typedef struct
 #define GL_TYPE_JOURNAL (gl_journal_get_type ())
 #define GL_JOURNAL(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GL_TYPE_JOURNAL, GlJournal))
 
+GType gl_journal_result_get_type (void);
 GType gl_journal_get_type (void);
 GList * gl_journal_query (GlJournal *self, const GlJournalQuery *query);
-void gl_journal_result_free (G_GNUC_UNUSED GlJournal *self, GlJournalResult *result);
-void gl_journal_results_free (G_GNUC_UNUSED GlJournal *self, GList *results);
+GlJournalResult * gl_journal_result_ref (GlJournalResult *result);
+void gl_journal_result_unref (GlJournalResult *result);
+void gl_journal_results_free (GList *results);
 GlJournalResult * gl_journal_query_cursor (GlJournal *self, const gchar *cursor);
 GlJournal * gl_journal_new (void);