Base class for Boost Device implementations allowing to access remote (ftp://, http://, https://) URLs as stdio streams, similar to fstream. More...

Inheritance diagram for mico::io::WebStreambufBase:

Public Member Functions
	WebStreambufBase (const char *url, URLMode mode, int bufsize)
	Open URL device using the given URL and flags. More...

virtual	~WebStreambufBase ()
	Clean up resources occupied by device, e.g. More...

Protected Attributes
URLMode	mode

handle_t	handle

CURLM *	multi_handle

int	running_handles

char *	buffer
	internal buffer for storing data from last read

int	buffer_size
	allocated buffer size

char *	buffer_position
	cURL position in buffer (when sending/receiving data)

bool	finishing
	indicate if device is already finishing transfer (i.e. no more reads/writes)

bool	waiting
	indicate if the device is still waiting for more data

Detailed Description

Base class for Boost Device implementations allowing to access remote (ftp://, http://, https://) URLs as stdio streams, similar to fstream.

Remote files are partly buffered in main memory.

The class is implemented using the Boost IOStreams library and uses the cURL library in the background to a access remote files.

Constructor & Destructor Documentation

mico::io::WebStreambufBase::WebStreambufBase	(	const char *	url,
		URLMode	mode,
		int	bufsize
	)

Open URL device using the given URL and flags.

Uses cURL internally to access the server.

Parameters

url	the full URL to the file (either starting with http://, https:// or ftp://)
mode	open mode, like for fopen; supported modes: read, write

Uses cURL internally to access the server.

Parameters

url	the full URL to the file (either starting with http://, https:// or ftp://)
mode	open mode, like for fopen; supported modes: r, w; remote files cannot be opened for reading and writing at the same time

mico::io::WebStreambufBase::~WebStreambufBase ( )

virtual

Clean up resources occupied by device, e.g.

file handles and connections.

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