CopyStream

Copy algorithm do not transform data at all This is useful in cases of reading/writing data that may or may not be compressed. Using Copy allows that the same code handles both kind of streams.

final

class CopyStream : SquizStream {

size_t _totalIn;

size_t _totalOut;

const(ubyte)[] input [@property getter];

const(ubyte)[] input [@property setter];

size_t totalInput [@property getter];

inout(ubyte)[] output [@property getter];

ubyte[] output [@property setter];

size_t totalOutput [@property getter];

}

Members

Properties

input const(ubyte)[] input [@property getter]: Undocumented in source. Be warned that the author may not have intended to support it.
input const(ubyte)[] input [@property setter]: Undocumented in source. Be warned that the author may not have intended to support it.
output inout(ubyte)[] output [@property getter]: Undocumented in source. Be warned that the author may not have intended to support it.
output ubyte[] output [@property setter]: Undocumented in source. Be warned that the author may not have intended to support it.
totalInput size_t totalInput [@property getter]: Undocumented in source. Be warned that the author may not have intended to support it.
totalOutput size_t totalOutput [@property getter]: Undocumented in source. Be warned that the author may not have intended to support it.

Variables

_totalIn size_t _totalIn;: Undocumented in source.
_totalOut size_t _totalOut;: Undocumented in source.

Inherited Members

From SquizStream

input const(ubyte)[] input [@property getter]
const(ubyte)[] input [@property setter]: Input data for the algorithm The slice is reduced by its begining as the processing moves on. Must be refilled when empty before calling the algorithm process method.
totalInput size_t totalInput [@property getter]: How many bytes read since the start of the stream processing.
output inout(ubyte)[] output [@property getter]: Output buffer for the algorithm to write to. This is NOT the data ready after process, but where the algorithm must write next. after a call to process, the slice is reduced by its beginning, and the data written is therefore the one before the slice.
output ubyte[] output [@property setter]: Undocumented in source.
totalOutput size_t totalOutput [@property getter]: How many bytes written since the start of the stream processing.

Examples

import test.util : generateRepetitiveData;
import std.array : join;

const len = 10_000;
const phrase = cast(const(ubyte)[]) "Some very repetitive phrase.\n";
const input = generateRepetitiveData(len, phrase).join();

/// copying with arbitrary chunk sizes on input and output
const cop1 = generateRepetitiveData(len, phrase, 1231).copy(234).join();
const cop2 = generateRepetitiveData(len, phrase, 296).copy(6712).join();

assert(input == cop1);
assert(input == cop2);