Class ArrayStream
An InputStream that encapsulates contents of an array
Constructors
| Name | Description |
this
()
|
Constructor. Initializes stream as empty
|
this
(data, size)
|
Constructor. Initializes stream with an array of bytes.
size delimits maximum read size
|
this
(data)
|
Constructor. Initializes stream with an array of bytes
|
Properties
| Name | Type | Description |
getPosition[get]
|
ulong | Returns current position
|
Methods
| Name | Description |
close
()
|
Closes the stream. Closed stream cannot be read or written any more
|
fillArray
(array)
|
Attempts to fill an array with raw data from stream.
Returns true if the array was filled, false otherwise
|
position
(pos)
|
Attempts to set current position to pos.
Throws SeekException on failure
|
readable
()
|
Returns true if there are any data to read. false means end of the stream.
|
readBE
(value)
|
Reads big-endian integer, converts to native-endian
and stores in value
|
readBytes
(buffer, count)
|
Attempts to read count bytes from stream and stores them in memory
pointing by buffer. Returns number of bytes actually read
|
readLE
(value)
|
Reads little-endian integer, converts to native-endian
and stores in value
|
seek
(amount)
|
Relatively changes position.
amount defines an offset from the current position (can be negative).
Throws SeekException on failure
|
seekable
()
|
Returns true if it is legal to use Seekable functionality on this stream
|
setPosition
(pos)
|
Attempts to set current position to pos.
Returns true on success, false on failure
|
size
()
|
Returns the size of a stream in bytes
|
Example
ubyte[] arr = [23, 13, 42, 71, 0, 1, 1, 2, 3, 5, 8];
auto stream = new ArrayStream(arr);
assert(stream.size() == arr.length);
ubyte[4] buf;
assert(stream.readBytes(buf.ptr, buf.length) == buf.length);
assert(buf == [23, 13, 42, 71]);
assert(stream.getPosition() == buf.length);
assert(stream.setPosition(6));
assert(stream.getPosition == 6);
assert(stream.readBytes(buf.ptr, buf.length) == buf.length);
assert(buf == [1, 2, 3, 5]);
assert(stream.readBytes(buf.ptr, buf.length) == 1);
assert(buf[0] == 8);
assert(!stream.readable);
stream.setPosition(1);
assert(stream.readable);
stream.seek(4);
assert(stream.readBytes(buf.ptr, buf.length) == buf.length);
assert(buf == [1, 1, 2, 3]);
assert(stream.setPosition(arr.length));
assert(!stream.setPosition(arr.length + 1));
stream.close();
assert(!stream.readable);