nix::FdSource Struct Reference

#include <serialise.hh>

Inheritance diagram for nix::FdSource:

Collaboration diagram for nix::FdSource:

Public Member Functions
std::string	endOfFileError () const
	FdSource (int fd)
	FdSource (FdSource &&)=default
FdSource &	operator= (FdSource &&s)
bool	good () override
Public Member Functions inherited from nix::BufferedSource
	BufferedSource (size_t bufSize=32 *1024)
size_t	read (char *data, size_t len) override
bool	hasData ()
Public Member Functions inherited from nix::Source
void	operator() (char *data, size_t len)
void	drainInto (Sink &sink)
std::string	drain ()

Public Attributes
int	fd
size_t	read = 0
std::optional< std::string >	specialEndOfFileError
Public Attributes inherited from nix::BufferedSource
size_t	bufSize
size_t	bufPosIn
size_t	bufPosOut
std::unique_ptr< char[]>	buffer

Protected Member Functions
size_t	readUnbuffered (char *data, size_t len) override

Detailed Description

A source that reads data from a file descriptor.

Member Function Documentation

good()

bool nix::FdSource::good ( )

overridevirtual

Reimplemented from nix::Source.

readUnbuffered()

size_t nix::FdSource::readUnbuffered ( char * data, size_t len )

overrideprotectedvirtual

Underlying read call, to be overridden.

Implements nix::BufferedSource.

Member Data Documentation

specialEndOfFileError

std::optional<std::string> nix::FdSource::specialEndOfFileError

Defaults to "unexpected end-of-file"

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

• lix/libutil/serialise.hh
• lix/libutil/serialise.cc