mirror of
https://github.com/ostreedev/ostree.git
synced 2024-12-25 01:34:34 +03:00
deltas: Use delta indexes when pulling
If there is no delta index in the summary, try to fetch the delta index for the commit we're going to and use that to find the delta (if any).
This commit is contained in:
parent
625606a7ec
commit
df7f07fc6c
@ -78,7 +78,8 @@ typedef struct {
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char *summary_sig_etag;
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guint64 summary_sig_last_modified; /* seconds since the epoch */
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GVariant *summary;
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GHashTable *summary_deltas_checksums;
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GHashTable *summary_deltas_checksums; /* Filled from summary and delta indexes */
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gboolean summary_has_deltas; /* True if the summary existed and had a delta index */
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GHashTable *ref_original_commits; /* Maps checksum to commit, used by timestamp checks */
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GHashTable *verified_commits; /* Set<checksum> of commits that have been verified */
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GHashTable *signapi_verified_commits; /* Map<checksum,verification> of commits that have been signapi verified */
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@ -93,6 +94,7 @@ typedef struct {
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GHashTable *requested_fallback_content; /* Maps checksum to itself */
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GHashTable *pending_fetch_metadata; /* Map<ObjectName,FetchObjectData> */
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GHashTable *pending_fetch_content; /* Map<checksum,FetchObjectData> */
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GHashTable *pending_fetch_delta_indexes; /* Set<FetchDeltaIndexData> */
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GHashTable *pending_fetch_delta_superblocks; /* Set<FetchDeltaSuperData> */
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GHashTable *pending_fetch_deltaparts; /* Set<FetchStaticDeltaData> */
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guint n_outstanding_metadata_fetches;
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@ -104,6 +104,14 @@ typedef struct {
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guint n_retries_remaining;
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} FetchDeltaSuperData;
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typedef struct {
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OtPullData *pull_data;
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char *from_revision;
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char *to_revision;
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OstreeCollectionRef *requested_ref; /* (nullable) */
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guint n_retries_remaining;
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} FetchDeltaIndexData;
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static void
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variant_or_null_unref (gpointer data)
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{
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@ -116,6 +124,8 @@ static void start_fetch_deltapart (OtPullData *pull_data,
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FetchStaticDeltaData *fetch);
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static void start_fetch_delta_superblock (OtPullData *pull_data,
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FetchDeltaSuperData *fetch_data);
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static void start_fetch_delta_index (OtPullData *pull_data,
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FetchDeltaIndexData *fetch_data);
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static gboolean fetcher_queue_is_full (OtPullData *pull_data);
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static void queue_scan_one_metadata_object (OtPullData *pull_data,
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const char *csum,
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@ -135,6 +145,8 @@ static void queue_scan_one_metadata_object_c (OtPullData *pull_da
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static void enqueue_one_object_request_s (OtPullData *pull_data,
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FetchObjectData *fetch_data);
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static void enqueue_one_static_delta_index_request_s (OtPullData *pull_data,
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FetchDeltaIndexData *fetch_data);
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static void enqueue_one_static_delta_superblock_request_s (OtPullData *pull_data,
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FetchDeltaSuperData *fetch_data);
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static void enqueue_one_static_delta_part_request_s (OtPullData *pull_data,
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@ -149,6 +161,11 @@ static gboolean scan_one_metadata_object (OtPullData *pull_data,
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GCancellable *cancellable,
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GError **error);
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static void scan_object_queue_data_free (ScanObjectQueueData *scan_data);
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static gboolean initiate_delta_request (OtPullData *pull_data,
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const OstreeCollectionRef *ref,
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const char *to_revision,
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const char *delta_from_revision,
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GError **error);
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static gboolean
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update_progress (gpointer user_data)
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@ -287,6 +304,7 @@ check_outstanding_requests_handle_error (OtPullData *pull_data,
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g_queue_foreach (&pull_data->scan_object_queue, (GFunc) scan_object_queue_data_free, NULL);
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g_queue_clear (&pull_data->scan_object_queue);
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g_hash_table_remove_all (pull_data->pending_fetch_metadata);
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g_hash_table_remove_all (pull_data->pending_fetch_delta_indexes);
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g_hash_table_remove_all (pull_data->pending_fetch_delta_superblocks);
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g_hash_table_remove_all (pull_data->pending_fetch_deltaparts);
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g_hash_table_remove_all (pull_data->pending_fetch_content);
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@ -320,6 +338,16 @@ check_outstanding_requests_handle_error (OtPullData *pull_data,
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g_variant_unref (objname);
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}
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/* Next, process delta index requests */
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g_hash_table_iter_init (&hiter, pull_data->pending_fetch_delta_indexes);
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while (!fetcher_queue_is_full (pull_data) &&
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g_hash_table_iter_next (&hiter, &key, &value))
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{
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FetchDeltaIndexData *fetch = key;
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g_hash_table_iter_steal (&hiter);
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start_fetch_delta_index (pull_data, g_steal_pointer (&fetch));
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}
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/* Next, process delta superblock requests */
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g_hash_table_iter_init (&hiter, pull_data->pending_fetch_delta_superblocks);
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while (!fetcher_queue_is_full (pull_data) &&
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@ -2469,6 +2497,16 @@ fetch_delta_super_data_free (FetchDeltaSuperData *fetch_data)
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g_free (fetch_data);
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}
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static void
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fetch_delta_index_data_free (FetchDeltaIndexData *fetch_data)
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{
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g_free (fetch_data->from_revision);
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g_free (fetch_data->to_revision);
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if (fetch_data->requested_ref)
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ostree_collection_ref_free (fetch_data->requested_ref);
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g_free (fetch_data);
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}
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static void
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set_required_deltas_error (GError **error,
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const char *from_revision,
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@ -2629,6 +2667,146 @@ validate_variant_is_csum (GVariant *csum,
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return ostree_validate_structureof_csum_v (csum, error);
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}
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static gboolean
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collect_available_deltas_for_pull (OtPullData *pull_data,
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GVariant *deltas,
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GError **error)
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{
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gsize n;
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n = deltas ? g_variant_n_children (deltas) : 0;
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for (gsize i = 0; i < n; i++)
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{
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const char *delta;
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g_autoptr(GVariant) csum_v = NULL;
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g_autoptr(GVariant) ref = g_variant_get_child_value (deltas, i);
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g_variant_get_child (ref, 0, "&s", &delta);
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g_variant_get_child (ref, 1, "v", &csum_v);
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if (!validate_variant_is_csum (csum_v, error))
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return FALSE;
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guchar *csum_data = g_malloc (OSTREE_SHA256_DIGEST_LEN);
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memcpy (csum_data, ostree_checksum_bytes_peek (csum_v), 32);
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g_hash_table_insert (pull_data->summary_deltas_checksums,
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g_strdup (delta),
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csum_data);
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}
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return TRUE;
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}
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static void
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on_delta_index_fetched (GObject *src,
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GAsyncResult *res,
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gpointer data)
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{
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FetchDeltaIndexData *fetch_data = data;
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OtPullData *pull_data = fetch_data->pull_data;
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g_autoptr(GError) local_error = NULL;
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GError **error = &local_error;
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g_autoptr(GBytes) delta_index_data = NULL;
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const char *from_revision = fetch_data->from_revision;
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const char *to_revision = fetch_data->to_revision;
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if (!_ostree_fetcher_request_to_membuf_finish ((OstreeFetcher*)src,
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res,
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&delta_index_data,
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NULL, NULL, NULL,
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error))
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{
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if (!g_error_matches (local_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
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goto out;
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g_clear_error (&local_error);
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/* below call to initiate_delta_request() will fail finding the delta and fall back to commit */
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}
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else
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{
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g_autoptr(GVariant) delta_index = g_variant_ref_sink (g_variant_new_from_bytes (G_VARIANT_TYPE_VARDICT, delta_index_data, FALSE));
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g_autoptr(GVariant) deltas = g_variant_lookup_value (delta_index, OSTREE_SUMMARY_STATIC_DELTAS, G_VARIANT_TYPE ("a{sv}"));
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if (!collect_available_deltas_for_pull (pull_data, deltas, error))
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goto out;
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}
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if (!initiate_delta_request (pull_data,
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fetch_data->requested_ref,
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to_revision,
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from_revision,
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&local_error))
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goto out;
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out:
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g_assert (pull_data->n_outstanding_metadata_fetches > 0);
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pull_data->n_outstanding_metadata_fetches--;
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if (local_error == NULL)
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pull_data->n_fetched_metadata++;
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if (_ostree_fetcher_should_retry_request (local_error, fetch_data->n_retries_remaining--))
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enqueue_one_static_delta_index_request_s (pull_data, g_steal_pointer (&fetch_data));
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else
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check_outstanding_requests_handle_error (pull_data, &local_error);
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g_clear_pointer (&fetch_data, fetch_delta_index_data_free);
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}
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static void
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start_fetch_delta_index (OtPullData *pull_data,
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FetchDeltaIndexData *fetch_data)
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{
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g_autofree char *delta_name =
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_ostree_get_relative_static_delta_index_path (fetch_data->to_revision);
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_ostree_fetcher_request_to_membuf (pull_data->fetcher,
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pull_data->content_mirrorlist,
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delta_name, OSTREE_FETCHER_REQUEST_OPTIONAL_CONTENT,
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NULL, 0,
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OSTREE_MAX_METADATA_SIZE,
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0, pull_data->cancellable,
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on_delta_index_fetched,
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g_steal_pointer (&fetch_data));
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pull_data->n_outstanding_metadata_fetches++;
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pull_data->n_requested_metadata++;
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}
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static void
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enqueue_one_static_delta_index_request_s (OtPullData *pull_data,
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FetchDeltaIndexData *fetch_data)
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{
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if (fetcher_queue_is_full (pull_data))
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{
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g_debug ("queuing fetch of static delta index to %s",
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fetch_data->to_revision);
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g_hash_table_add (pull_data->pending_fetch_delta_indexes,
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g_steal_pointer (&fetch_data));
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}
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else
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{
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start_fetch_delta_index (pull_data, g_steal_pointer (&fetch_data));
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}
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}
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/* Start a request for a static delta index */
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static void
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enqueue_one_static_delta_index_request (OtPullData *pull_data,
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const char *to_revision,
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const char *from_revision,
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const OstreeCollectionRef *ref)
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{
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FetchDeltaIndexData *fdata = g_new0(FetchDeltaIndexData, 1);
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fdata->pull_data = pull_data;
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fdata->from_revision = g_strdup (from_revision);
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fdata->to_revision = g_strdup (to_revision);
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fdata->requested_ref = (ref != NULL) ? ostree_collection_ref_dup (ref) : NULL;
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fdata->n_retries_remaining = pull_data->n_network_retries;
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enqueue_one_static_delta_index_request_s (pull_data, g_steal_pointer (&fdata));
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}
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static gboolean
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_ostree_repo_verify_summary (OstreeRepo *self,
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const char *name,
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@ -3259,47 +3437,12 @@ reinitialize_fetcher (OtPullData *pull_data, const char *remote_name,
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return TRUE;
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}
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/*
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* initiate_request:
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* @ref: Optional ref name and collection ID
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* @to_revision: Target commit revision we want to fetch
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*
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* Start a request for either a ref or a commit. In the
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* ref case, we know both the name and the target commit.
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*
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* This function primarily handles the semantics around
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* `disable_static_deltas` and `require_static_deltas`.
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*/
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static gboolean
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initiate_request (OtPullData *pull_data,
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initiate_delta_request (OtPullData *pull_data,
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const OstreeCollectionRef *ref,
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const char *to_revision,
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const char *delta_from_revision,
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GError **error)
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{
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g_autofree char *delta_from_revision = NULL;
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/* Are deltas disabled? OK, just start an object fetch and be done */
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if (pull_data->disable_static_deltas)
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{
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queue_scan_one_metadata_object (pull_data, to_revision, OSTREE_OBJECT_TYPE_COMMIT, NULL, 0, ref);
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return TRUE;
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}
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/* If doing a delta from a ref, look up the from-revision, since we need it
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* on most paths below. */
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if (ref != NULL)
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{
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g_autofree char *refspec = NULL;
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if (pull_data->remote_name != NULL)
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refspec = g_strdup_printf ("%s:%s", pull_data->remote_name, ref->ref_name);
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if (!ostree_repo_resolve_rev (pull_data->repo,
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refspec ?: ref->ref_name, TRUE,
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&delta_from_revision, error))
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return FALSE;
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}
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/* If we have a summary, we can use the newer logic */
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if (pull_data->summary)
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{
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DeltaSearchResult deltares;
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@ -3349,6 +3492,61 @@ initiate_request (OtPullData *pull_data,
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queue_scan_one_metadata_object (pull_data, to_revision, OSTREE_OBJECT_TYPE_COMMIT, NULL, 0, ref);
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}
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}
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return TRUE;
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}
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/*
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* initiate_request:
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* @ref: Optional ref name and collection ID
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* @to_revision: Target commit revision we want to fetch
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*
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* Start a request for either a ref or a commit. In the
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* ref case, we know both the name and the target commit.
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*
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* This function primarily handles the semantics around
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* `disable_static_deltas` and `require_static_deltas`.
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*/
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static gboolean
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initiate_request (OtPullData *pull_data,
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const OstreeCollectionRef *ref,
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const char *to_revision,
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GError **error)
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{
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g_autofree char *delta_from_revision = NULL;
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/* Are deltas disabled? OK, just start an object fetch and be done */
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if (pull_data->disable_static_deltas)
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{
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queue_scan_one_metadata_object (pull_data, to_revision, OSTREE_OBJECT_TYPE_COMMIT, NULL, 0, ref);
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return TRUE;
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}
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/* If doing a delta from a ref, look up the from-revision, since we need it
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* on most paths below. */
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if (ref != NULL)
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{
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g_autofree char *refspec = NULL;
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if (pull_data->remote_name != NULL)
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refspec = g_strdup_printf ("%s:%s", pull_data->remote_name, ref->ref_name);
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if (!ostree_repo_resolve_rev (pull_data->repo,
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refspec ?: ref->ref_name, TRUE,
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&delta_from_revision, error))
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return FALSE;
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}
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/* If we have a summary, we can use the newer logic */
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if (pull_data->summary)
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{
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if (!pull_data->summary_has_deltas)
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{
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enqueue_one_static_delta_index_request (pull_data, to_revision, delta_from_revision, ref);
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}
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else
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{
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if (!initiate_delta_request (pull_data, ref, to_revision, delta_from_revision, error))
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return FALSE;
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}
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}
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else if (ref != NULL)
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{
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@ -3657,6 +3855,7 @@ ostree_repo_pull_with_options (OstreeRepo *self,
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pull_data->pending_fetch_metadata = g_hash_table_new_full (ostree_hash_object_name, g_variant_equal,
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(GDestroyNotify)g_variant_unref,
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(GDestroyNotify)fetch_object_data_free);
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pull_data->pending_fetch_delta_indexes = g_hash_table_new_full (NULL, NULL, (GDestroyNotify) fetch_delta_index_data_free, NULL);
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pull_data->pending_fetch_delta_superblocks = g_hash_table_new_full (NULL, NULL, (GDestroyNotify) fetch_delta_super_data_free, NULL);
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pull_data->pending_fetch_deltaparts = g_hash_table_new_full (NULL, NULL, (GDestroyNotify)fetch_static_delta_data_free, NULL);
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@ -4314,25 +4513,9 @@ ostree_repo_pull_with_options (OstreeRepo *self,
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}
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deltas = g_variant_lookup_value (additional_metadata, OSTREE_SUMMARY_STATIC_DELTAS, G_VARIANT_TYPE ("a{sv}"));
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n = deltas ? g_variant_n_children (deltas) : 0;
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for (i = 0; i < n; i++)
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{
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const char *delta;
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g_autoptr(GVariant) csum_v = NULL;
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g_autoptr(GVariant) ref = g_variant_get_child_value (deltas, i);
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g_variant_get_child (ref, 0, "&s", &delta);
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g_variant_get_child (ref, 1, "v", &csum_v);
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if (!validate_variant_is_csum (csum_v, error))
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pull_data->summary_has_deltas = deltas != NULL && g_variant_n_children (deltas) > 0;
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if (!collect_available_deltas_for_pull (pull_data, deltas, error))
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goto out;
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guchar *csum_data = g_malloc (OSTREE_SHA256_DIGEST_LEN);
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memcpy (csum_data, ostree_checksum_bytes_peek (csum_v), 32);
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g_hash_table_insert (pull_data->summary_deltas_checksums,
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g_strdup (delta),
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csum_data);
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}
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}
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if (pull_data->summary &&
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@ -4900,6 +5083,7 @@ ostree_repo_pull_with_options (OstreeRepo *self,
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g_clear_pointer (&pull_data->requested_metadata, (GDestroyNotify) g_hash_table_unref);
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g_clear_pointer (&pull_data->pending_fetch_content, (GDestroyNotify) g_hash_table_unref);
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g_clear_pointer (&pull_data->pending_fetch_metadata, (GDestroyNotify) g_hash_table_unref);
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g_clear_pointer (&pull_data->pending_fetch_delta_indexes, (GDestroyNotify) g_hash_table_unref);
|
||||
g_clear_pointer (&pull_data->pending_fetch_delta_superblocks, (GDestroyNotify) g_hash_table_unref);
|
||||
g_clear_pointer (&pull_data->pending_fetch_deltaparts, (GDestroyNotify) g_hash_table_unref);
|
||||
g_queue_foreach (&pull_data->scan_object_queue, (GFunc) scan_object_queue_data_free, NULL);
|
||||
|
Loading…
Reference in New Issue
Block a user