fz::FZMBufferEntry Struct Reference

Per-buffer metadata record written into the FZM header (256 bytes). More...

#include <fzm_format.h>

Public Attributes
StageType	stage_type
	Producer stage type (2B)
uint16_t	stage_version
	Producer stage config version (2B)
DataType	data_type
	Element data type in this buffer (1B)
uint8_t	producer_output_idx
	Which output port of the producer (1B)
uint16_t	dag_buffer_id
	DAG buffer ID used for inverse routing; 0xFFFF = unassigned (2B)
char	name [FZM_MAX_NAME_LEN]
	Output port name, null-terminated (64B)
uint64_t	data_size
	Actual compressed bytes in this segment (8B)
uint64_t	allocated_size
	Buffer capacity required for decompression (8B)
uint64_t	uncompressed_size
	Bytes after fully decompressing this stage's output (8B)
uint64_t	byte_offset
	Byte offset of this segment within the compressed payload (8B)
uint8_t	stage_config [FZM_STAGE_CONFIG_SIZE]
	Producer stage config, see Stage::serializeHeader() (128B)
uint32_t	config_size
	Valid bytes in stage_config (4B)
uint8_t	reserved2 [14]
	Reserved for future use (14B)

Detailed Description

Per-buffer metadata record written into the FZM header (256 bytes).

Describes one compressed buffer segment: which stage produced it, its data type, sizes, and byte offset within the payload. Also carries the producing stage's serialized config so decompressFromFile() can reconstruct the stage without needing the corresponding FZMStageInfo.