Stream that just redirects all the input to an internal memory buffer. More...

#include <DobbyStream.h>

Inheritance diagram for DobbyBufferStream:

Collaboration diagram for DobbyBufferStream:

Public Member Functions
	DobbyBufferStream (ssize_t limit=-1)
	Constructs the buffer using an memfd. More...

int	dupWriteFD (int newFd, bool closeExec) const override
	Returns a dup'd file descriptor for the write side of the stream. More...

std::vector< char >	getBuffer () const
	Reads all the data in the buffer. More...

int	getMemFd () const

Private Attributes
int	mMemFd

Detailed Description

Stream that just redirects all the input to an internal memory buffer.

This is useful for capturing the stderr output, or other small bits of text output from a command line tool.

Note: This object is not very efficient and should only be used for small amounts of text data.

Constructor & Destructor Documentation

◆ DobbyBufferStream()

DobbyBufferStream::DobbyBufferStream ( ssize_t limit = -1 )

explicit

Constructs the buffer using an memfd.

Parameters

[in] limit The maximum number of bytes that can be written into the buffer.

Member Function Documentation

◆ dupWriteFD()

int DobbyBufferStream::dupWriteFD	(	int	newFd,
		bool	closeExec
	)		const

overridevirtual

Returns a dup'd file descriptor for the write side of the stream.

If the file descriptor newfd was previously open, it is silently closed before being reused. If newFd is -1 then the lowest-numbered unused file descriptor number is used.

Parameters

[in]	newFd	The number to give the new dup'd file descriptor.
[in]	closeExec	If true the O_CLOEXEC flag is set on the new fd

Returns: the new file descriptor, on error -1.

Implements IDobbyStream.

◆ getBuffer()

std::vector< char > DobbyBufferStream::getBuffer ( ) const

Reads all the data in the buffer.

This doesn't do a flush or anything, this just returns everything written into the buffer.

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

daemon/lib/source/include/DobbyStream.h
daemon/lib/source/DobbyStream.cpp