socket/xmlBlasterZlib.h File Reference

#include <util/basicDefs.h>
#include <zlib.h>

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Data Structures
struct	XmlBlasterZlibWriteBuffers
	Helper struct to compress a byte buffer before putting it into the socket. More...
struct	XmlBlasterZlibReadBuffers
	Helper struct to uncompress a byte buffer coming from the socket connection. More...
Defines
#define	XMLBLASTER_ZLIB_WRITE_COMPBUFFER_LEN   20000
#define	XMLBLASTER_ZLIB_READ_COMPBUFFER_LEN   20000
Functions
int	xmlBlaster_initZlibWriter (XmlBlasterZlibWriteBuffers *zlibWriteBufP)
	Call only once for a socket connection stream.
ssize_t	xmlBlaster_writenCompressed (XmlBlasterZlibWriteBuffers *zlibWriteBufP, int fd, char *ptr, size_tnbytes)
	Compress given bytes with zlib and write them to the socket.
int	xmlBlaster_endZlibWriter (XmlBlasterZlibWriteBuffers *zlibWriteBufP)
	See also: xmlBlasterZlib.h
int	xmlBlaster_initZlibReader (XmlBlasterZlibReadBuffers *zlibReadBufP)
	Call only once for a socket connection stream.
ssize_t	xmlBlaster_readnCompressed (XmlBlasterZlibReadBuffers *zlibReadBufP, int fd, char *ptr, size_t nbytes, XmlBlasterNumReadFunc fpNumRead, void *userP2)
	Read compressed data from the socket and uncompress it.
int	xmlBlaster_endZlibReader (XmlBlasterZlibReadBuffers *zlibReadBufP)
	Cleanup after socket is closed.

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Define Documentation

#define XMLBLASTER_ZLIB_READ_COMPBUFFER_LEN   20000

Definition at line 43 of file xmlBlasterZlib.h.

Referenced by xmlBlaster_readnCompressed().

#define XMLBLASTER_ZLIB_WRITE_COMPBUFFER_LEN   20000

Definition at line 23 of file xmlBlasterZlib.h.

Referenced by xmlBlaster_writenCompressed().

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Function Documentation

int xmlBlaster_endZlibReader

(

XmlBlasterZlibReadBuffers *

zlibReadBufP

)

Cleanup after socket is closed.

Parameters:

zlibReadBufP

Struct holding necessary variables to use zlib

Definition at line 281 of file xmlBlasterZlib.c.

References XmlBlasterZlibReadBuffers::c_stream.

Referenced by freeXmlBlasterConnectionUnparsed().

int xmlBlaster_endZlibWriter

(

XmlBlasterZlibWriteBuffers *

zlibWriteBufP

)

See also:

xmlBlasterZlib.h

Definition at line 149 of file xmlBlasterZlib.c.

References XmlBlasterZlibWriteBuffers::c_stream, XmlBlasterZlibWriteBuffers::debug, and dumpZlib().

Referenced by freeXmlBlasterConnectionUnparsed().

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int xmlBlaster_initZlibReader

(

XmlBlasterZlibReadBuffers *

zlibReadBufP

)

Call only once for a socket connection stream.

Returns:

Z_OK==0 or error from inflateInit()

Definition at line 166 of file xmlBlasterZlib.c.

References XmlBlasterZlibReadBuffers::c_stream, XmlBlasterZlibReadBuffers::compBuffer, XmlBlasterZlibReadBuffers::currCompBufferP, XmlBlasterZlibReadBuffers::currCompBytes, and XmlBlasterZlibReadBuffers::debug.

Referenced by initConnection().

int xmlBlaster_initZlibWriter

(

XmlBlasterZlibWriteBuffers *

zlibWriteBufP

)

Call only once for a socket connection stream.

Returns:

Z_OK==0 or error from deflateInit()

Definition at line 68 of file xmlBlasterZlib.c.

References XmlBlasterZlibWriteBuffers::c_stream, and XmlBlasterZlibWriteBuffers::debug.

Referenced by initConnection().

ssize_t xmlBlaster_readnCompressed	(	XmlBlasterZlibReadBuffers *	zlibReadBufP,
		int	fd,
		char *	ptr,
		size_t	nbytes,
		XmlBlasterNumReadFunc	fpNumRead,
		void *	userP2
	)

Read compressed data from the socket and uncompress it.

Parameters:

	zlibReadBufP	Struct holding necessary variables to use zlib
	fd	The socket descriptor
	ptr	The empty buffer which gets filled with raw bytes from socket (out parameter)
	nbytes	The max. size of 'ptr'

Returns:

number of bytes read, -1 is EOF

Definition at line 193 of file xmlBlasterZlib.c.

References XmlBlasterZlibReadBuffers::c_stream, XmlBlasterZlibReadBuffers::compBuffer, XmlBlasterZlibReadBuffers::currCompBufferP, XmlBlasterZlibReadBuffers::currCompBytes, XmlBlasterZlibReadBuffers::debug, dumpZlib(), and XMLBLASTER_ZLIB_READ_COMPBUFFER_LEN.

Referenced by readnCompressed().

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ssize_t xmlBlaster_writenCompressed	(	XmlBlasterZlibWriteBuffers *	zlibWriteBufP,
		int	fd,
		char *	ptr,
		size_tnbytes
	)

Compress given bytes with zlib and write them to the socket.

Parameters:

	fd	The socket descriptor
	ptr	The buffer with raw bytes
	nbytes	The number of bytes in 'ptr'

Returns:

Number of bytes written

Definition at line 92 of file xmlBlasterZlib.c.

References XmlBlasterZlibWriteBuffers::c_stream, XmlBlasterZlibWriteBuffers::compBuffer, XmlBlasterZlibWriteBuffers::debug, dumpZlib(), writen(), and XMLBLASTER_ZLIB_WRITE_COMPBUFFER_LEN.

Referenced by writenCompressed().

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