hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// Copyright 2021 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "fxjs/cfx_v8_array_buffer_allocator.h"
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#include "core/fxcrt/fx_memory.h"
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CFX_V8ArrayBufferAllocator::CFX_V8ArrayBufferAllocator() = default;
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CFX_V8ArrayBufferAllocator::~CFX_V8ArrayBufferAllocator() = default;
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// NOTE: Under V8 sandbox mode, defer NewDefaultAllocator() call until
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// first use, since V8 must be initialized first for it to succeed, but
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// we need the allocator in order to initialize V8.
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void* CFX_V8ArrayBufferAllocator::Allocate(size_t length) {
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if (length > kMaxAllowedBytes)
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return nullptr;
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#ifdef V8_ENABLE_SANDBOX
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if (!wrapped_) {
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wrapped_.reset(v8::ArrayBuffer::Allocator::NewDefaultAllocator());
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}
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return wrapped_->Allocate(length);
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#else // V8_ENABLE_SANDBOX
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return FX_ArrayBufferAllocate(length);
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#endif // V8_ENABLE_SANDBOX
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}
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void* CFX_V8ArrayBufferAllocator::AllocateUninitialized(size_t length) {
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if (length > kMaxAllowedBytes)
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return nullptr;
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#ifdef V8_ENABLE_SANDBOX
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if (!wrapped_) {
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wrapped_.reset(v8::ArrayBuffer::Allocator::NewDefaultAllocator());
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}
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return wrapped_->AllocateUninitialized(length);
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#else // V8_ENABLE_SANDBOX
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return FX_ArrayBufferAllocateUninitialized(length);
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#endif
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}
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void CFX_V8ArrayBufferAllocator::Free(void* data, size_t length) {
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#ifdef V8_ENABLE_SANDBOX
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if (wrapped_) {
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wrapped_->Free(data, length);
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}
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#else // V8_ENABLE_SANDBOX
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FX_ArrayBufferFree(data);
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#endif
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}
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