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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "XMLHttpRequestString.h"
#include "mozilla/Mutex.h"
#include "nsISupportsImpl.h"
#include "mozilla/dom/DOMString.h"
namespace mozilla {
namespace dom {
// ---------------------------------------------------------------------------
// XMLHttpRequestString
XMLHttpRequestString::XMLHttpRequestString()
: mBuffer(new XMLHttpRequestStringBuffer())
{
}
XMLHttpRequestString::~XMLHttpRequestString()
{
}
void
XMLHttpRequestString::Truncate()
{
mBuffer = new XMLHttpRequestStringBuffer();
}
uint32_t
XMLHttpRequestString::Length() const
{
return mBuffer->Length();
}
void
XMLHttpRequestString::Append(const nsAString& aString)
{
mBuffer->Append(aString);
}
bool
XMLHttpRequestString::GetAsString(nsAString& aString) const
{
return mBuffer->GetAsString(aString);
}
size_t
XMLHttpRequestString::SizeOfThis(MallocSizeOf aMallocSizeOf) const
{
return mBuffer->SizeOfThis(aMallocSizeOf);
}
bool
XMLHttpRequestString::IsEmpty() const
{
return !mBuffer->Length();
}
void
XMLHttpRequestString::CreateSnapshot(XMLHttpRequestStringSnapshot& aSnapshot)
{
mBuffer->CreateSnapshot(aSnapshot);
}
// ---------------------------------------------------------------------------
// XMLHttpRequestStringSnapshot
XMLHttpRequestStringSnapshot::XMLHttpRequestStringSnapshot()
: mLength(0)
, mVoid(false)
{
}
XMLHttpRequestStringSnapshot::~XMLHttpRequestStringSnapshot()
{
}
XMLHttpRequestStringSnapshot&
XMLHttpRequestStringSnapshot::operator=(const XMLHttpRequestStringSnapshot& aOther)
{
mBuffer = aOther.mBuffer;
mLength = aOther.mLength;
mVoid = aOther.mVoid;
return *this;
}
void
XMLHttpRequestStringSnapshot::ResetInternal(bool aIsVoid)
{
mBuffer = nullptr;
mLength = 0;
mVoid = aIsVoid;
}
void
XMLHttpRequestStringSnapshot::Set(XMLHttpRequestStringBuffer* aBuffer,
uint32_t aLength)
{
MOZ_ASSERT(aBuffer);
MOZ_ASSERT(aLength <= aBuffer->UnsafeLength());
mBuffer = aBuffer;
mLength = aLength;
mVoid = false;
}
bool
XMLHttpRequestStringSnapshot::GetAsString(DOMString& aString) const
{
if (mBuffer) {
MOZ_ASSERT(!mVoid);
return mBuffer->GetAsString(aString, mLength);
}
if (mVoid) {
aString.SetNull();
}
return true;
}
// ---------------------------------------------------------------------------
// XMLHttpRequestStringWriterHelper
XMLHttpRequestStringWriterHelper::XMLHttpRequestStringWriterHelper(XMLHttpRequestString& aString)
: mBuffer(aString.mBuffer)
, mLock(aString.mBuffer->mMutex)
{
}
bool
XMLHttpRequestStringWriterHelper::AddCapacity(int32_t aCapacity)
{
return mBuffer->UnsafeData().SetCapacity(mBuffer->UnsafeLength() + aCapacity, fallible);
}
char16_t*
XMLHttpRequestStringWriterHelper::EndOfExistingData()
{
return mBuffer->UnsafeData().BeginWriting() + mBuffer->UnsafeLength();
}
void
XMLHttpRequestStringWriterHelper::AddLength(int32_t aLength)
{
mBuffer->UnsafeData().SetLength(mBuffer->UnsafeLength() + aLength);
}
// ---------------------------------------------------------------------------
// XMLHttpRequestStringReaderHelper
XMLHttpRequestStringSnapshotReaderHelper::XMLHttpRequestStringSnapshotReaderHelper(XMLHttpRequestStringSnapshot& aSnapshot)
: mBuffer(aSnapshot.mBuffer)
, mLock(aSnapshot.mBuffer->mMutex)
{
}
const char16_t*
XMLHttpRequestStringSnapshotReaderHelper::Buffer() const
{
return mBuffer->UnsafeData().BeginReading();
}
uint32_t
XMLHttpRequestStringSnapshotReaderHelper::Length() const
{
return mBuffer->UnsafeLength();
}
} // dom namespace
} // mozilla namespace
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