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/**
* Any copyright is dedicated to the Public Domain.
*/
function getBuffer(size) {
let buffer = new ArrayBuffer(size);
is(buffer.byteLength, size, "Correct byte length");
return buffer;
}
// May be called for any size, but you should call getBuffer() if you know
// that size is big and that randomness is not necessary because it is
// noticeably faster.
function getRandomBuffer(size) {
let buffer = getBuffer(size);
let view = new Uint8Array(buffer);
for (let i = 0; i < size; i++) {
view[i] = parseInt(Math.random() * 255);
}
return buffer;
}
function compareBuffers(buffer1, buffer2) {
if (buffer1.byteLength != buffer2.byteLength) {
return false;
}
let view1 = buffer1 instanceof Uint8Array ? buffer1 : new Uint8Array(buffer1);
let view2 = buffer2 instanceof Uint8Array ? buffer2 : new Uint8Array(buffer2);
for (let i = 0; i < buffer1.byteLength; i++) {
if (view1[i] != view2[i]) {
return false;
}
}
return true;
}
function getBlob(type, object) {
return new Blob([object], { type });
}
function getNullBlob(size) {
return getBlob("binary/null", getBuffer(size));
}