[gnome-builder] egg-task-cache: Track the in-flight GTask used to fetch the value

[Christian Hergert <chergert src gnome org>]

commit 4ef15fc83f85a5b00c64a156cd4c4b85d6bbb1c7
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Mar 6 18:29:33 2017 +0100

    egg-task-cache: Track the in-flight GTask used to fetch the value
    
    Proper cancellation handling, when multiple tasks are queued for a
    given key, requires that the in-flight GTask used to fetch the value be
    separate from the ones that represent the egg_task_cache_get_async
    callers. Fetching of the value should be aborted once all the queued
    tasks have been cancelled.
    
    Therefore, it is necessary to be able to access the in-flight GTask for
    a given key from a GCancellable::cancelled handler. This is meant to
    help with that.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779660

 contrib/egg/egg-task-cache.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/contrib/egg/egg-task-cache.c b/contrib/egg/egg-task-cache.c
index d1830cb..8d7493e 100644
--- a/contrib/egg/egg-task-cache.c
+++ b/contrib/egg/egg-task-cache.c
@@ -518,7 +518,7 @@ egg_task_cache_get_async (EggTaskCache        *self,
                                self->key_copy_func ((gpointer)key));
       g_hash_table_insert (self->in_flight,
                            self->key_copy_func ((gpointer)key),
-                           GINT_TO_POINTER (TRUE));
+                           g_object_ref (fetch_task));
       self->populate_callback (self,
                                key,
                                g_object_ref (fetch_task),
@@ -634,7 +634,7 @@ egg_task_cache_constructed (GObject *object)
   self->in_flight = g_hash_table_new_full (self->key_hash_func,
                                            self->key_equal_func,
                                            self->key_destroy_func,
-                                           NULL);
+                                           g_object_unref);
 
   /*
    * This is where tasks queue waiting for an in_flight callback.