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/* 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 = ASSERT_PTR(userdata);
assert(s);
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, NULL, images);
if (r < 0)
return r;
HASHMAP_FOREACH(image, images)
(void) manager_image_cache_add(m, image);
return 0;
}
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