Cursor-tracked exact-read byte source with a running header CRC. More...

Data Fields
unarch_read_fn	read
	Byte reader over the member.
void *	ctx
	Context for read.
uint64_t	size
	Member length in bytes.
uint64_t	pos
	Next unconsumed byte offset.
uint32_t	crc
	Running CRC32 of consumed bytes.
bool	track_crc
	Fold consumed bytes into crc.

Detailed Description

Cursor-tracked exact-read byte source with a running header CRC.

Wraps the shared read seam: pos is the next unconsumed byte; every consumed header byte is folded into crc while track_crc is set so the optional FHCRC check needs no re-read.

Invariant: pos <= size between operations.

See also: unarch_gzip_unwrap()

Since: Version 0.1.0

Definition at line 78 of file unarch_gzip.c.

Field Documentation

◆ crc

uint32_t gz_src_t::crc

Running CRC32 of consumed bytes.

Definition at line 83 of file unarch_gzip.c.

Referenced by internal_parse_header(), and internal_src_take().

◆ ctx

void* gz_src_t::ctx

Context for read.

Definition at line 80 of file unarch_gzip.c.

Referenced by internal_src_take(), and internal_verify_trailer().

◆ pos

uint64_t gz_src_t::pos

Next unconsumed byte offset.

Definition at line 82 of file unarch_gzip.c.

Referenced by internal_inflate_pass(), internal_src_take(), and internal_verify_trailer().

◆ read

unarch_read_fn gz_src_t::read

Byte reader over the member.

Definition at line 79 of file unarch_gzip.c.

Referenced by internal_src_take(), and internal_verify_trailer().

◆ size

uint64_t gz_src_t::size

Member length in bytes.

Definition at line 81 of file unarch_gzip.c.

Referenced by internal_inflate_pass(), internal_src_take(), and internal_verify_trailer().

◆ track_crc

bool gz_src_t::track_crc

Fold consumed bytes into crc.

Definition at line 84 of file unarch_gzip.c.