gz_state Struct Reference

internal gzip file state data structure More...

#include <gzguts.h>

Data Fields
struct gzFile_s	x
	exposed contents for gzgetc() macro
z_stream	strm
	zlib inflate or deflate stream
used for both reading and writing
int	mode
	see gzip modes above
int	fd
	file descriptor
char *	path
	path or fd for error messages
unsigned	size
	buffer size, zero if not allocated yet
unsigned	want
	requested buffer size, default is GZBUFSIZE
unsigned char *	in
	input buffer (double-sized when writing)
unsigned char *	out
	output buffer (double-sized when reading)
just for reading
int	how
	0: get header, 1: copy, 2: decompress
z_off64_t	start
	where the gzip data started, for rewinding
int	eof
	true if end of input file reached
just for writing
int	level
	compression level
int	strategy
	compression strategy
z_off64_t	skip
	seek request
error information
int	err
	error code

Detailed Description

internal gzip file state data structure

Field Documentation

skip

z_off64_t gz_state::skip

seek request

amount to skip (already rewound if backwards)

x

struct gzFile_s gz_state::x

exposed contents for gzgetc() macro

• x for exposed
• x.have: number of bytes available at x.next
• x.next: next output data to deliver or write
• x.pos: current position in uncompressed data

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The documentation for this struct was generated from the following file:

• include/gzguts.h