176 lines
3.7 KiB
C++
176 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "XMLHttpRequestString.h"
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#include "mozilla/Mutex.h"
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#include "nsISupportsImpl.h"
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#include "mozilla/dom/DOMString.h"
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namespace mozilla {
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namespace dom {
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// ---------------------------------------------------------------------------
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// XMLHttpRequestString
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XMLHttpRequestString::XMLHttpRequestString()
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: mBuffer(new XMLHttpRequestStringBuffer())
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{
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}
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XMLHttpRequestString::~XMLHttpRequestString()
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{
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}
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void
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XMLHttpRequestString::Truncate()
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{
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mBuffer = new XMLHttpRequestStringBuffer();
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}
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uint32_t
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XMLHttpRequestString::Length() const
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{
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return mBuffer->Length();
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}
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void
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XMLHttpRequestString::Append(const nsAString& aString)
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{
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mBuffer->Append(aString);
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}
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bool
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XMLHttpRequestString::GetAsString(nsAString& aString) const
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{
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return mBuffer->GetAsString(aString);
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}
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size_t
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XMLHttpRequestString::SizeOfThis(MallocSizeOf aMallocSizeOf) const
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{
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return mBuffer->SizeOfThis(aMallocSizeOf);
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}
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bool
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XMLHttpRequestString::IsEmpty() const
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{
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return !mBuffer->Length();
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}
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void
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XMLHttpRequestString::CreateSnapshot(XMLHttpRequestStringSnapshot& aSnapshot)
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{
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mBuffer->CreateSnapshot(aSnapshot);
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}
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// ---------------------------------------------------------------------------
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// XMLHttpRequestStringSnapshot
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XMLHttpRequestStringSnapshot::XMLHttpRequestStringSnapshot()
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: mLength(0)
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, mVoid(false)
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{
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}
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XMLHttpRequestStringSnapshot::~XMLHttpRequestStringSnapshot()
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{
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}
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XMLHttpRequestStringSnapshot&
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XMLHttpRequestStringSnapshot::operator=(const XMLHttpRequestStringSnapshot& aOther)
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{
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mBuffer = aOther.mBuffer;
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mLength = aOther.mLength;
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mVoid = aOther.mVoid;
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return *this;
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}
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void
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XMLHttpRequestStringSnapshot::ResetInternal(bool aIsVoid)
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{
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mBuffer = nullptr;
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mLength = 0;
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mVoid = aIsVoid;
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}
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void
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XMLHttpRequestStringSnapshot::Set(XMLHttpRequestStringBuffer* aBuffer,
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uint32_t aLength)
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{
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MOZ_ASSERT(aBuffer);
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MOZ_ASSERT(aLength <= aBuffer->UnsafeLength());
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mBuffer = aBuffer;
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mLength = aLength;
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mVoid = false;
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}
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bool
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XMLHttpRequestStringSnapshot::GetAsString(DOMString& aString) const
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{
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if (mBuffer) {
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MOZ_ASSERT(!mVoid);
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return mBuffer->GetAsString(aString, mLength);
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}
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if (mVoid) {
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aString.SetNull();
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}
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return true;
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}
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// ---------------------------------------------------------------------------
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// XMLHttpRequestStringWriterHelper
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XMLHttpRequestStringWriterHelper::XMLHttpRequestStringWriterHelper(XMLHttpRequestString& aString)
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: mBuffer(aString.mBuffer)
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, mLock(aString.mBuffer->mMutex)
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{
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}
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bool
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XMLHttpRequestStringWriterHelper::AddCapacity(int32_t aCapacity)
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{
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return mBuffer->UnsafeData().SetCapacity(mBuffer->UnsafeLength() + aCapacity, fallible);
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}
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char16_t*
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XMLHttpRequestStringWriterHelper::EndOfExistingData()
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{
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return mBuffer->UnsafeData().BeginWriting() + mBuffer->UnsafeLength();
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}
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void
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XMLHttpRequestStringWriterHelper::AddLength(int32_t aLength)
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{
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mBuffer->UnsafeData().SetLength(mBuffer->UnsafeLength() + aLength);
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}
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// ---------------------------------------------------------------------------
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// XMLHttpRequestStringReaderHelper
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XMLHttpRequestStringSnapshotReaderHelper::XMLHttpRequestStringSnapshotReaderHelper(XMLHttpRequestStringSnapshot& aSnapshot)
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: mBuffer(aSnapshot.mBuffer)
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, mLock(aSnapshot.mBuffer->mMutex)
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{
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}
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const char16_t*
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XMLHttpRequestStringSnapshotReaderHelper::Buffer() const
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{
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return mBuffer->UnsafeData().BeginReading();
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}
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uint32_t
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XMLHttpRequestStringSnapshotReaderHelper::Length() const
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{
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return mBuffer->UnsafeLength();
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}
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} // dom namespace
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} // mozilla namespace
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