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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
commit2cb7e0aaedad73b076ea18c6900b0e86c5760d79 (patch)
treeda68ca54bb79f4080079bf0828acda937593a4e1 /src/portable/portabled-image.c
parentInitial commit. (diff)
downloadsystemd-upstream.tar.xz
systemd-upstream.zip
Adding upstream version 247.3.upstream/247.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/portable/portabled-image.c')
-rw-r--r--src/portable/portabled-image.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/portable/portabled-image.c b/src/portable/portabled-image.c
new file mode 100644
index 0000000..b025c20
--- /dev/null
+++ b/src/portable/portabled-image.c
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "portable.h"
+#include "portabled-image.h"
+#include "portabled.h"
+
+Image *manager_image_cache_get(Manager *m, const char *name_or_path) {
+ assert(m);
+
+ return hashmap_get(m->image_cache, name_or_path);
+}
+
+static int image_cache_flush(sd_event_source *s, void *userdata) {
+ Manager *m = userdata;
+
+ assert(s);
+ assert(m);
+
+ hashmap_clear(m->image_cache);
+ return 0;
+}
+
+static int manager_image_cache_initialize(Manager *m) {
+ int r;
+
+ assert(m);
+
+ r = hashmap_ensure_allocated(&m->image_cache, &image_hash_ops);
+ if (r < 0)
+ return r;
+
+ /* We flush the cache as soon as we are idle again */
+ if (!m->image_cache_defer_event) {
+ r = sd_event_add_defer(m->event, &m->image_cache_defer_event, image_cache_flush, m);
+ if (r < 0)
+ return r;
+
+ r = sd_event_source_set_priority(m->image_cache_defer_event, SD_EVENT_PRIORITY_IDLE);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_event_source_set_enabled(m->image_cache_defer_event, SD_EVENT_ONESHOT);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int manager_image_cache_add(Manager *m, Image *image) {
+ int r;
+
+ assert(m);
+
+ /* We add the specified image to the cache under two keys.
+ *
+ * 1. Always under its path
+ *
+ * 2. If the image was discovered in the search path (i.e. its discoverable boolean set) we'll also add it
+ * under its short name.
+ */
+
+ r = manager_image_cache_initialize(m);
+ if (r < 0)
+ return r;
+
+ image->userdata = m;
+
+ r = hashmap_put(m->image_cache, image->path, image);
+ if (r < 0)
+ return r;
+
+ image_ref(image);
+
+ if (image->discoverable) {
+ r = hashmap_put(m->image_cache, image->name, image);
+ if (r < 0)
+ return r;
+
+ image_ref(image);
+ }
+
+ return 0;
+}
+
+int manager_image_cache_discover(Manager *m, Hashmap *images, sd_bus_error *error) {
+ Image *image;
+ int r;
+
+ assert(m);
+
+ /* A wrapper around image_discover() (for finding images in search path) and portable_discover_attached() (for
+ * finding attached images). */
+
+ r = image_discover(IMAGE_PORTABLE, images);
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(image, images)
+ (void) manager_image_cache_add(m, image);
+
+ return 0;
+}