#include <core/storage/fileio/union_fstream.hpp>

Public Member Functions
	union_fstream (std::string url, std::ios_base::openmode mode=std::ios_base::in\|std::ios_base::out, std::string proxy="")

	~union_fstream ()
	Destructor.

stream_type	get_type () const
	Returns the current stream type. Whether it is a HDFS, STD, or cache stream.

std::string	get_name () const

size_t	file_size ()

Detailed Description

A simple union of std::fstream and turi::hdfs::fstream. Also performs S3 downloading, uploading, and Curl downloading automatically.

Definition at line 19 of file union_fstream.hpp.

Constructor & Destructor Documentation

◆ union_fstream()

turi::union_fstream::union_fstream	(	std::string	url,
		std::ios_base::openmode	mode = `std::ios_base::in\|std::ios_base::out`,
		std::string	proxy = `""`
	)

Constructs a union fstream from a filename. Based on the filename (whether it begins with hdfs://, or cache://) an appropriate stream type (HDFS, STD, or CACHE) is created.

Throws an std::io_base_failure exception if fail to construct the stream.

Member Function Documentation

◆ file_size()

size_t turi::union_fstream::file_size ( )

Returns the file size of the opened file. Returns (size_t)(-1) if there is no file opened, or if there is an error obtaining the file size.

◆ get_name()

std::string turi::union_fstream::get_name ( ) const

Returns the filename used to construct the union_fstream

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