Exiv2::HttpIo::HttpImpl Class Reference

Internal Pimpl structure of class HttpIo. More...

Inheritance diagram for Exiv2::HttpIo::HttpImpl:

Public Member Functions
	HttpImpl (const std::string &path, size_t blockSize)
	Constructor.
long	getFileLength ()
	Get the length (in bytes) of the remote file. More...
void	getDataByRange (long lowBlock, long highBlock, std::string &response)
	Get the data by range. More...
void	writeRemote (const byte *data, size_t size, long from, long to)
	Submit the data to the remote machine. The data replace a part of the remote file. The replaced part of remote file is indicated by from and to parameters. More...
Public Member Functions inherited from Exiv2::RemoteIo::Impl
	Impl (const std::string &path, size_t blockSize)
	Constructor.
virtual	~Impl ()
	Destructor. Releases all managed memory.
virtual size_t	populateBlocks (size_t lowBlock, size_t highBlock)
	Get the data from the remote machine and write them to the memory blocks. More...

Public Attributes
Exiv2::Uri	hostInfo_
	the host information extracted from the path
Public Attributes inherited from Exiv2::RemoteIo::Impl
std::string	path_
	(Standard) path
size_t	blockSize_
	Size of the block memory.
BlockMap *	blocksMap_
	An array contains all blocksMap.
size_t	size_
	The file size.
long	idx_
	Index into the memory area.
bool	isMalloced_
	Was the blocksMap_ allocated?
bool	eof_
	EOF indicator.
Protocol	protocol_
	the protocol of url
uint32_t	totalRead_
	bytes requested from host

Protected Member Functions
	HttpImpl (const HttpImpl &rhs)
	Copy constructor.
HttpImpl &	operator= (const HttpImpl &rhs)
	Assignment.

Detailed Description

Internal Pimpl structure of class HttpIo.

Member Function Documentation

getDataByRange()

void Exiv2::HttpIo::HttpImpl::getDataByRange ( long  lowBlock, long  highBlock, std::string &  response  )

virtual

Get the data by range.

Parameters

lowBlock	The start block index.
highBlock	The end block index.
response	The data from the server.

Exceptions

Error

if the server returns the error code.

Note

Set lowBlock = -1 and highBlock = -1 to get the whole file content.

Implements Exiv2::RemoteIo::Impl.

References Exiv2::http(), and Exiv2::string.

getFileLength()

long Exiv2::HttpIo::HttpImpl::getFileLength ( )

virtual

Get the length (in bytes) of the remote file.

Returns

Return -1 if the size is unknown. Otherwise it returns the length of remote file (in bytes).

Exceptions

Error

if the server returns the error code.

Implements Exiv2::RemoteIo::Impl.

References Exiv2::http(), and Exiv2::string.

writeRemote()

void Exiv2::HttpIo::HttpImpl::writeRemote ( const byte *  data, size_t  size, long  from, long  to  )

virtual

Submit the data to the remote machine. The data replace a part of the remote file. The replaced part of remote file is indicated by from and to parameters.

Parameters

data	The data are submitted to the remote machine.
size	The size of data.
from	The start position in the remote file where the data replace.
to	The end position in the remote file where the data replace.

Note

The data are submitted to the remote machine via POST. This requires the script file on the remote machine to receive the data and edit the remote file. The server-side script may be specified with the environment string EXIV2_HTTP_POST. The default value is "/exiv2.php". More info is available at http://dev.exiv2.org/wiki/exiv2

Exceptions

Error

if it fails.

Implements Exiv2::RemoteIo::Impl.

References Exiv2::base64encode(), Exiv2::getEnv(), Exiv2::Uri::Host, Exiv2::http(), Exiv2::Uri::Parse(), Exiv2::Uri::Path, Exiv2::Uri::Port, Exiv2::RemoteIo::size(), Exiv2::string, and Exiv2::urlencode().

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

• basicio.cpp