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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "js/ArrayBuffer.h"
#include "js/ArrayBufferMaybeShared.h"
#include "js/experimental/TypedData.h"
#include "js/SharedArrayBuffer.h"
#include "jsapi-tests/tests.h"
using namespace js;
BEGIN_TEST(testLargeArrayBuffers) {
#ifdef JS_64BIT
constexpr size_t nbytes = size_t(6) * 1024 * 1024 * 1024; // 6 GB.
RootedObject buffer(cx, JS::NewArrayBuffer(cx, nbytes));
CHECK(buffer);
CHECK(JS::IsArrayBufferObject(buffer));
size_t length;
bool isShared;
uint8_t* data;
// ArrayBuffer
{
CHECK_EQUAL(JS::GetArrayBufferByteLength(buffer), nbytes);
JS::GetArrayBufferLengthAndData(buffer, &length, &isShared, &data);
CHECK_EQUAL(length, nbytes);
length = 0;
JS::GetArrayBufferMaybeSharedLengthAndData(buffer, &length, &isShared,
&data);
CHECK_EQUAL(length, nbytes);
length = 0;
CHECK(GetObjectAsArrayBuffer(buffer, &length, &data));
CHECK_EQUAL(length, nbytes);
}
// New Uint8Array
{
RootedObject tarr(cx, JS_NewUint8Array(cx, nbytes));
CHECK(JS_IsTypedArrayObject(tarr));
CHECK_EQUAL(JS_GetArrayBufferViewByteOffset(tarr), 0u);
CHECK_EQUAL(JS_GetArrayBufferViewByteLength(tarr), nbytes);
CHECK_EQUAL(JS_GetTypedArrayByteOffset(tarr), 0u);
CHECK_EQUAL(JS_GetTypedArrayByteLength(tarr), nbytes);
CHECK_EQUAL(JS_GetTypedArrayLength(tarr), nbytes);
length = 0;
js::GetArrayBufferViewLengthAndData(tarr, &length, &isShared, &data);
CHECK_EQUAL(length, nbytes);
length = 0;
js::GetUint8ArrayLengthAndData(tarr, &length, &isShared, &data);
CHECK_EQUAL(length, nbytes);
length = 0;
JS::AutoCheckCannotGC nogc(cx);
mozilla::Span<uint8_t> span =
JS::TypedArray<Scalar::Uint8>::unwrap(tarr).getData(&isShared, nogc);
CHECK_EQUAL(span.Length(), nbytes);
length = 0;
CHECK(JS_GetObjectAsArrayBufferView(tarr, &length, &isShared, &data));
CHECK_EQUAL(length, nbytes);
}
// Int16Array
{
RootedObject tarr(cx,
JS_NewInt16ArrayWithBuffer(cx, buffer, 0, nbytes / 2));
CHECK(JS_IsTypedArrayObject(tarr));
CHECK_EQUAL(JS_GetArrayBufferViewByteOffset(tarr), 0u);
CHECK_EQUAL(JS_GetArrayBufferViewByteLength(tarr), nbytes);
CHECK_EQUAL(JS_GetTypedArrayByteOffset(tarr), 0u);
CHECK_EQUAL(JS_GetTypedArrayByteLength(tarr), nbytes);
CHECK_EQUAL(JS_GetTypedArrayLength(tarr), nbytes / 2);
length = 0;
js::GetArrayBufferViewLengthAndData(tarr, &length, &isShared, &data);
CHECK_EQUAL(length, nbytes);
length = 0;
int16_t* int16Data;
js::GetInt16ArrayLengthAndData(tarr, &length, &isShared, &int16Data);
CHECK_EQUAL(length, nbytes / 2);
length = 0;
JS::AutoCheckCannotGC nogc(cx);
mozilla::Span<short> span =
JS::TypedArray<Scalar::Int16>::unwrap(tarr).getData(&isShared, nogc);
CHECK_EQUAL(span.Length(), nbytes / 2);
length = 0;
CHECK(JS_GetObjectAsArrayBufferView(tarr, &length, &isShared, &data));
CHECK_EQUAL(length, nbytes);
}
// DataView
{
RootedObject dv(cx, JS_NewDataView(cx, buffer, 0, nbytes - 10));
CHECK(JS_IsArrayBufferViewObject(dv));
CHECK_EQUAL(JS_GetArrayBufferViewByteOffset(dv), 0u);
CHECK_EQUAL(JS_GetArrayBufferViewByteLength(dv), nbytes - 10);
length = 0;
js::GetArrayBufferViewLengthAndData(dv, &length, &isShared, &data);
CHECK_EQUAL(length, nbytes - 10);
length = 0;
CHECK(JS_GetObjectAsArrayBufferView(dv, &length, &isShared, &data));
CHECK_EQUAL(length, nbytes - 10);
}
// Int8Array with large byteOffset.
{
RootedObject tarr(cx,
JS_NewInt8ArrayWithBuffer(cx, buffer, nbytes - 200, 32));
CHECK(JS_IsTypedArrayObject(tarr));
CHECK_EQUAL(JS_GetArrayBufferViewByteOffset(tarr), nbytes - 200);
CHECK_EQUAL(JS_GetArrayBufferViewByteLength(tarr), 32u);
CHECK_EQUAL(JS_GetTypedArrayByteOffset(tarr), nbytes - 200);
CHECK_EQUAL(JS_GetTypedArrayByteLength(tarr), 32u);
CHECK_EQUAL(JS_GetTypedArrayLength(tarr), 32u);
}
// DataView with large byteOffset.
{
RootedObject dv(cx, JS_NewDataView(cx, buffer, nbytes - 200, 32));
CHECK(JS_IsArrayBufferViewObject(dv));
CHECK_EQUAL(JS_GetArrayBufferViewByteOffset(dv), nbytes - 200);
CHECK_EQUAL(JS_GetArrayBufferViewByteLength(dv), 32u);
}
#endif
return true;
}
END_TEST(testLargeArrayBuffers)
BEGIN_TEST(testLargeSharedArrayBuffers) {
#ifdef JS_64BIT
constexpr size_t nbytes = size_t(5) * 1024 * 1024 * 1024; // 5 GB.
RootedObject buffer(cx, JS::NewSharedArrayBuffer(cx, nbytes));
CHECK(buffer);
CHECK(JS::IsSharedArrayBufferObject(buffer));
CHECK_EQUAL(GetSharedArrayBufferByteLength(buffer), nbytes);
size_t length;
bool isShared;
uint8_t* data;
JS::GetSharedArrayBufferLengthAndData(buffer, &length, &isShared, &data);
CHECK_EQUAL(length, nbytes);
#endif
return true;
}
END_TEST(testLargeSharedArrayBuffers)
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