net_instaweb::GzipInflater Class Reference

Public Types
enum	InflateType { kGzip, kDeflate }

Public Member Functions
	GzipInflater (InflateType type)
bool	Init ()
	Should be called once, before inflating any data.
void	ShutDown ()
	Should be called once, after inflating is finished.
bool	HasUnconsumedInput () const
bool	SetInput (const void *in, size_t in_size)
int	InflateBytes (char *buf, size_t buf_size)
bool	finished () const
	Has the entire input been inflated?
bool	error () const
	Was an error encountered during inflating?

Static Public Member Functions
static bool	Deflate (StringPiece in, InflateType format, Writer *writer)
static bool	Deflate (StringPiece in, InflateType format, int compression_level, Writer *writer)
static bool	Inflate (StringPiece in, InflateType format, Writer *writer)
static bool	HasGzipMagicBytes (StringPiece in)
	Checks whether in starts with the gzip file signature.

Friends
class	GzipInflaterTestPeer

Member Function Documentation

static bool net_instaweb::GzipInflater::Deflate ( StringPiece  in, InflateType  format, Writer *  writer  )

static

Deflates a stringpiece, writing output to Writer. Returns false if there was some kind of failure, though none are expected.

bool net_instaweb::GzipInflater::HasUnconsumedInput

(

)

const

Does the inflater still have input that has not yet been consumed? If true, the caller should call InflateBytes(). If false, the gzip inflater is ready for additional input.

static bool net_instaweb::GzipInflater::Inflate ( StringPiece  in, InflateType  format, Writer *  writer  )

static

Inflates a stringpiece, writing output to Writer. Returns false if there was some kind of failure, such as a corrupt input.

int net_instaweb::GzipInflater::InflateBytes	(	char *	buf,
		size_t	buf_size
	)

Decompress the input passed in via SetInput. Should be called until HasUnconsumedInput returns false. Returns the number of bytes inflated, or -1 if an error was encountered while inflating.

bool net_instaweb::GzipInflater::SetInput	(	const void *	in,
		size_t	in_size
	)

Pass a gzip-compressed buffer to the gzip inflater. The gzip inflater will inflate the buffer via InflateBytes(). SetInput should not be called if HasUnconsumedInput() is true, and the buffer passed into SetInput should not be modified by the caller until HasUnconsumedInput() returns false.

---

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

• pagespeed/kernel/util/gzip_inflater.h