infback.c File Reference

#include <compat/zutil.h>
#include "inftrees.h"
#include "inflate.h"
#include "inffast.h"
#include "inffixed.h"

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Macros
#define	LOAD()
#define	RESTORE()
#define	INITBITS()
#define	PULL()
#define	PULLBYTE()
#define	NEEDBITS(n)
#define	BITS(n)   ((unsigned)hold & ((1U << (n)) - 1))
#define	DROPBITS(n)
#define	BYTEBITS()
#define	ROOM()

Functions
static void	fixedtables (struct inflate_state FAR *state)
int	inflateBackInit_ (z_streamp strm, int windowBits, unsigned char FAR *window, const char *version, int stream_size)
int	inflateBack (z_streamp strm, in_func in, void FAR *in_desc, out_func out, void FAR *out_desc)
int	inflateBackEnd (z_streamp strm)

Macro Definition Documentation

BITS

#define BITS

(

n

)

((unsigned)hold & ((1U << (n)) - 1))

BYTEBITS

#define BYTEBITS

(

)

Value:

do { \
 hold >>= bits & 7; \
 bits -= bits & 7; \
 } while (0)

DROPBITS

#define DROPBITS

(

n

)

Value:

do { \
 hold >>= (n); \
 bits -= (unsigned)(n); \
 } while (0)

INITBITS

#define INITBITS

(

)

Value:

do { \
 hold = 0; \
 bits = 0; \
 } while (0)

LOAD

#define LOAD

(

)

Value:

do { \
 put = strm->next_out; \
 left = strm->avail_out; \
 next = strm->next_in; \
 have = strm->avail_in; \
 hold = state->hold; \
 bits = state->bits; \
 } while (0)

NEEDBITS

#define NEEDBITS

(

n

)

Value:

do { \
 while (bits < (unsigned)(n)) \
 PULLBYTE(); \
 } while (0)

PULL

#define PULL

(

)

Value:

do { \
 if (have == 0) { \
 have = in(in_desc, &next); \
 if (have == 0) { \
 next = Z_NULL; \
 ret = Z_BUF_ERROR; \
 goto inf_leave; \
 } \
 } \
 } while (0)

PULLBYTE

#define PULLBYTE

(

)

Value:

do { \
 PULL(); \
 have--; \
 hold += (unsigned long)(*next++) << bits; \
 bits += 8; \
 } while (0)

RESTORE

#define RESTORE

(

)

Value:

do { \
 strm->next_out = put; \
 strm->avail_out = left; \
 strm->next_in = next; \
 strm->avail_in = have; \
 state->hold = hold; \
 state->bits = bits; \
 } while (0)

ROOM

#define ROOM

(

)

Value:

do { \
 if (left == 0) { \
 put = state->window; \
 left = state->wsize; \
 state->whave = left; \
 if (out(out_desc, put, left)) { \
 ret = Z_BUF_ERROR; \
 goto inf_leave; \
 } \
 } \
 } while (0)

Function Documentation

fixedtables()

static void fixedtables ( struct inflate_state FAR *  state )

static

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inflateBack()

int inflateBack	(	z_streamp	strm,
		in_func	in,
		void FAR *	in_desc,
		out_func	out,
		void FAR *	out_desc
	)

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inflateBackEnd()

int inflateBackEnd

(

z_streamp

strm

)

inflateBackInit_()

int inflateBackInit_	(	z_streamp	strm,
		int	windowBits,
		unsigned char FAR *	window,
		const char *	version,
		int	stream_size
	)

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