2018-04-16 21:41:40 +02:00
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/* SPDX-License-Identifier: LGPL-2.1+ */
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#include "portable.h"
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#include "portabled-image.h"
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#include "portabled.h"
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Image *manager_image_cache_get(Manager *m, const char *name_or_path) {
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assert(m);
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return hashmap_get(m->image_cache, name_or_path);
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}
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static int image_cache_flush(sd_event_source *s, void *userdata) {
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Manager *m = userdata;
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assert(s);
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assert(m);
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2018-11-28 14:54:44 +01:00
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hashmap_clear(m->image_cache);
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2018-04-16 21:41:40 +02:00
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return 0;
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}
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static int manager_image_cache_initialize(Manager *m) {
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int r;
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assert(m);
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2018-11-28 14:54:44 +01:00
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r = hashmap_ensure_allocated(&m->image_cache, &image_hash_ops);
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2018-04-16 21:41:40 +02:00
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if (r < 0)
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return r;
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/* We flush the cache as soon as we are idle again */
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if (!m->image_cache_defer_event) {
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r = sd_event_add_defer(m->event, &m->image_cache_defer_event, image_cache_flush, m);
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if (r < 0)
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return r;
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r = sd_event_source_set_priority(m->image_cache_defer_event, SD_EVENT_PRIORITY_IDLE);
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if (r < 0)
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return r;
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}
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r = sd_event_source_set_enabled(m->image_cache_defer_event, SD_EVENT_ONESHOT);
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if (r < 0)
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return r;
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return 0;
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}
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int manager_image_cache_add(Manager *m, Image *image) {
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int r;
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assert(m);
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/* We add the specified image to the cache under two keys.
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*
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* 1. Always under its path
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*
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* 2. If the image was discovered in the search path (i.e. its discoverable boolean set) we'll also add it
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* under its short name.
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*/
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r = manager_image_cache_initialize(m);
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if (r < 0)
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return r;
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image->userdata = m;
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r = hashmap_put(m->image_cache, image->path, image);
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if (r < 0)
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return r;
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image_ref(image);
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if (image->discoverable) {
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r = hashmap_put(m->image_cache, image->name, image);
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if (r < 0)
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return r;
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image_ref(image);
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}
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return 0;
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}
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int manager_image_cache_discover(Manager *m, Hashmap *images, sd_bus_error *error) {
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Image *image;
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Iterator i;
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int r;
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assert(m);
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/* A wrapper around image_discover() (for finding images in search path) and portable_discover_attached() (for
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* finding attached images). */
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r = image_discover(IMAGE_PORTABLE, images);
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if (r < 0)
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return r;
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HASHMAP_FOREACH(image, images, i)
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(void) manager_image_cache_add(m, image);
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return 0;
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}
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