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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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 "mozilla/dom/LSValue.h"
#include "mozIStorageStatement.h"
#include "mozilla/dom/SnappyUtils.h"
#include "mozilla/fallible.h"
#include "nsDebug.h"
#include "nsError.h"
namespace mozilla::dom {
bool LSValue::InitFromString(const nsAString& aBuffer) {
MOZ_ASSERT(mBuffer.IsVoid());
MOZ_ASSERT(!mUTF16Length);
MOZ_ASSERT(!mCompressed);
if (aBuffer.IsVoid()) {
return true;
}
nsCString converted;
if (NS_WARN_IF(!CopyUTF16toUTF8(aBuffer, converted, fallible))) {
return false;
}
nsCString convertedAndCompressed;
if (NS_WARN_IF(!SnappyCompress(converted, convertedAndCompressed))) {
return false;
}
if (convertedAndCompressed.IsVoid()) {
mBuffer = converted;
mUTF16Length = aBuffer.Length();
} else {
mBuffer = convertedAndCompressed;
mUTF16Length = aBuffer.Length();
mCompressed = true;
}
return true;
}
nsresult LSValue::InitFromStatement(mozIStorageStatement* aStatement,
uint32_t aIndex) {
MOZ_ASSERT(aStatement);
MOZ_ASSERT(mBuffer.IsVoid());
MOZ_ASSERT(!mUTF16Length);
MOZ_ASSERT(!mCompressed);
nsCString buffer;
nsresult rv = aStatement->GetUTF8String(aIndex, buffer);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int32_t utf16Length;
rv = aStatement->GetInt32(aIndex + 1, &utf16Length);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
int32_t compressed;
rv = aStatement->GetInt32(aIndex + 2, &compressed);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
mBuffer = buffer;
mUTF16Length = utf16Length;
mCompressed = compressed;
return NS_OK;
}
const LSValue& VoidLSValue() {
static const LSValue sVoidLSValue;
return sVoidLSValue;
}
} // namespace mozilla::dom
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