nix::LambdaSource Struct Reference

#include <serialise.hh>

Inheritance diagram for nix::LambdaSource:

Collaboration diagram for nix::LambdaSource:

Public Types
typedef std::function< size_t(char *, size_t)	lambda_t)

Public Member Functions
	LambdaSource (const lambda_t &lambda)
size_t	read (char *data, size_t len) override
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
lambda_t	lambda

Detailed Description

Convert a function into a source.

Member Function Documentation

read()

size_t nix::LambdaSource::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