Adding upstream version 1.44.3.upstream/1.44.3

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

1 files changed, 58 insertions, 0 deletions

diff --git a/database/engine/page.h b/database/engine/page.h
new file mode 100644
index 000000000..32c87c580
--- /dev/null
+++ b/database/engine/page.h
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef DBENGINE_PAGE_H
+#define DBENGINE_PAGE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "libnetdata/libnetdata.h"
+
+typedef struct pgd_cursor {
+    struct pgd *pgd;
+    uint32_t position;
+    uint32_t slots;
+
+    gorilla_reader_t gr;
+} PGDC;
+
+#include "rrdengine.h"
+
+typedef struct pgd PGD;
+
+#define PGD_EMPTY (PGD *)(-1)
+
+void pgd_init_arals(void);
+
+PGD *pgd_create(uint8_t type, uint32_t slots);
+PGD *pgd_create_from_disk_data(uint8_t type, void *base, uint32_t size);
+void pgd_free(PGD *pg);
+
+uint32_t pgd_type(PGD *pg);
+bool pgd_is_empty(PGD *pg);
+uint32_t pgd_slots_used(PGD *pg);
+
+uint32_t pgd_memory_footprint(PGD *pg);
+uint32_t pgd_disk_footprint(PGD *pg);
+
+void pgd_copy_to_extent(PGD *pg, uint8_t *dst, uint32_t dst_size);
+
+void pgd_append_point(PGD *pg,
+                      usec_t point_in_time_ut,
+                      NETDATA_DOUBLE n,
+                      NETDATA_DOUBLE min_value,
+                      NETDATA_DOUBLE max_value,
+                      uint16_t count,
+                      uint16_t anomaly_count,
+                      SN_FLAGS flags,
+                      uint32_t expected_slot);
+
+void pgdc_reset(PGDC *pgdc, PGD *pgd, uint32_t position);
+bool pgdc_get_next_point(PGDC *pgdc, uint32_t expected_position, STORAGE_POINT *sp);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // DBENGINE_PAGE_H