nix::SizedSource Struct Reference

#include <serialise.hh>

Inheritance diagram for nix::SizedSource:

Public Member Functions
	SizedSource (Source &orig, size_t size)
size_t	read (char *data, size_t len) override
size_t	drainAll ()
Public Member Functions inherited from nix::Source
void	operator() (char *data, size_t len)
virtual bool	good ()
void	drainInto (Sink &sink)
std::string	drain ()

Public Attributes
Source &	orig
size_t	remain

Detailed Description

A reader that consumes the original Source until 'size'.

Member Function Documentation

drainAll()

size_t nix::SizedSource::drainAll ( )

inline

Consume the original source until no remain data is left to consume.

read()

size_t nix::SizedSource::read ( char * data, size_t len )

inlineoverridevirtual

Store up to ‘len’ in the buffer pointed to by ‘data’, and return the number of bytes stored. It blocks until at least one byte is available.

Should not return 0 (generally you want to throw EndOfFile), but nothing stops that.

Exceptions

EndOfFile

if there is no more data.

Implements nix::Source.

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

• lix/libutil/serialise.hh