struct ChunkHeader

Defined at line 312 of file ../../third_party/perfetto/include/perfetto/ext/tracing/core/shared_memory_abi.h

There is one Chunk header per chunk (hence PageLayout per page) at the

beginning of each chunk.

Public Members

atomic chunk_id

atomic writer_id

atomic packets

static const uint8_t kFlagsMask

enum Flags : uint8_t

Name	Value	Comments
kFirstPacketContinuesFromPrevChunk	1 << 0	If set, the first TracePacket in the chunk is partial and continues from \|chunk_id\| - 1 (within the same \|writer_id\|).
kLastPacketContinuesOnNextChunk	1 << 1	If set, the last TracePacket in the chunk is partial and continues on \|chunk_id\| + 1 (within the same \|writer_id\|).
kChunkNeedsPatching	1 << 2	If set, the last (fragmented) TracePacket in the chunk has holes (even if the chunk is marked as kChunkComplete) that need to be patched out-of-band before the chunk can be read.

Defined at line 314 of file ../../third_party/perfetto/include/perfetto/ext/tracing/core/shared_memory_abi.h