[libsecret/wip/dueno/backend: 8/9] secret-backend: Add a way to uncache singleton instance



commit d75c82ed8daf10fa3ab194c2cbb8be32767d5446
Author: Daiki Ueno <dueno src gnome org>
Date:   Mon Jul 1 17:29:10 2019 +0200

    secret-backend: Add a way to uncache singleton instance
    
    This is ugly, but necessary to handle instance uncaching in
    SecretBackend when the backend instance is gone.

 libsecret/secret-backend.c | 14 ++++++++++++++
 libsecret/secret-backend.h |  2 ++
 libsecret/secret-service.c |  2 ++
 3 files changed, 18 insertions(+)
---
diff --git a/libsecret/secret-backend.c b/libsecret/secret-backend.c
index 2c26c7d..a63b75c 100644
--- a/libsecret/secret-backend.c
+++ b/libsecret/secret-backend.c
@@ -122,6 +122,20 @@ backend_get_instance (void)
        return instance;
 }
 
+void
+_secret_backend_uncache_instance (void)
+{
+       SecretBackend *instance = NULL;
+
+       G_LOCK (backend_instance);
+       instance = backend_instance;
+       backend_instance = NULL;
+       G_UNLOCK (backend_instance);
+
+       if (instance != NULL)
+               g_object_unref (instance);
+}
+
 static GType
 backend_get_impl_type (void)
 {
diff --git a/libsecret/secret-backend.h b/libsecret/secret-backend.h
index 7dae506..3dadffa 100644
--- a/libsecret/secret-backend.h
+++ b/libsecret/secret-backend.h
@@ -97,6 +97,8 @@ struct _SecretBackendInterface
 
 void           _secret_backend_ensure_extension_point
                                          (void);
+void           _secret_backend_uncache_instance
+                                         (void);
 
 void           secret_backend_get        (SecretBackendFlags flags,
                                           GCancellable *cancellable,
diff --git a/libsecret/secret-service.c b/libsecret/secret-service.c
index 6a233b8..0554dd0 100644
--- a/libsecret/secret-service.c
+++ b/libsecret/secret-service.c
@@ -191,6 +191,8 @@ service_uncache_instance (SecretService *which)
        if (watch != 0)
                g_bus_unwatch_name (watch);
 
+       _secret_backend_uncache_instance ();
+
        return matched;
 }
 


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