From d079b656b4719739b2247dcd9d46e9bec793095a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 Feb 2023 17:11:34 +0100 Subject: Merging upstream version 1.38.0. Signed-off-by: Daniel Baumann --- database/engine/datafile.ksy | 74 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 database/engine/datafile.ksy (limited to 'database/engine/datafile.ksy') diff --git a/database/engine/datafile.ksy b/database/engine/datafile.ksy new file mode 100644 index 000000000..28d4b3935 --- /dev/null +++ b/database/engine/datafile.ksy @@ -0,0 +1,74 @@ +meta: + id: netdata_datafile + endian: le + +seq: + - id: hdr + type: header + size: 4096 + - id: extents + type: extent + repeat: eos + +types: + header: + seq: + - id: magic + contents: "netdata-data-file" + - id: reserved + size: 15 + - id: version + contents: "1.0" + - id: reserved1 + size: 13 + - id: tier + type: u1 + extent_page_descr: + seq: + - id: type + type: u1 + enum: page_type + - id: uuid + size: 16 + - id: page_len + type: u4 + - id: start_time_ut + type: u8 + - id: end_time_ut + type: u8 + enums: + page_type: + 0: metrics + 1: tier + extent_header: + seq: + - id: payload_length + type: u4 + - id: compression_algorithm + type: u1 + enum: compression_algos + - id: number_of_pages + type: u1 + - id: page_descriptors + type: extent_page_descr + repeat: expr + repeat-expr: number_of_pages + enums: + compression_algos: + 0: rrd_no_compression + 1: rrd_lz4 + extent_trailer: + seq: + - id: crc32_checksum + type: u4 + extent: + seq: + - id: header + type: extent_header + - id: payload + size: header.payload_length + - id: trailer + type: extent_trailer + - id: padding + size: (((_io.pos + 4095) / 4096) * 4096) - _io.pos + # the extent size is made to always be a multiple of 4096 -- cgit v1.2.3