Merging upstream version 1.29.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/database/engine/metadata_log/metadatalogapi.c b/database/engine/metadata_log/metadatalogapi.c
new file mode 100755
index 000000000..b206cca05
--- /dev/null
+++ b/database/engine/metadata_log/metadatalogapi.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+#define NETDATA_RRD_INTERNALS
+
+#include "metadatalog.h"
+
+/*
+ * Returns 0 on success, negative on error
+ */
+int metalog_init(struct rrdengine_instance *rrdeng_parent_ctx)
+{
+    struct metalog_instance *ctx;
+    int error;
+
+    ctx = callocz(1, sizeof(*ctx));
+    ctx->initialized = 0;
+    rrdeng_parent_ctx->metalog_ctx = ctx;
+
+    ctx->rrdeng_ctx = rrdeng_parent_ctx;
+    error = init_metalog_files(ctx);
+    if (error) {
+        goto error_after_init_rrd_files;
+    }
+    ctx->initialized = 1; /* notify dbengine that the metadata log has finished initializing */
+    return 0;
+
+error_after_init_rrd_files:
+    freez(ctx);
+    return UV_EIO;
+}
+
+/* This function is called by dbengine rotation logic when the metric has no writers */
+void metalog_delete_dimension_by_uuid(struct metalog_instance *ctx, uuid_t *metric_uuid)
+{
+    uuid_t  multihost_uuid;
+
+    delete_dimension_uuid(metric_uuid);
+    rrdeng_convert_legacy_uuid_to_multihost(ctx->rrdeng_ctx->machine_guid, metric_uuid, &multihost_uuid);
+    delete_dimension_uuid(&multihost_uuid);
+}