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gecko-dev/dom/indexedDB/IDBObjectStore.cpp

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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: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Indexed Database.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Turner <bent.mozilla@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "IDBObjectStore.h"
#include "nsIJSContextStack.h"
#include "jsfriendapi.h"
#include "mozilla/dom/StructuredCloneTags.h"
#include "mozilla/storage.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
#include "nsDOMClassInfo.h"
#include "nsDOMFile.h"
#include "nsDOMLists.h"
#include "nsEventDispatcher.h"
#include "nsJSUtils.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "snappy/snappy.h"
#include "test_quota.h"
#include "xpcpublic.h"
#include "AsyncConnectionHelper.h"
#include "IDBCursor.h"
#include "IDBEvents.h"
#include "IDBIndex.h"
#include "IDBKeyRange.h"
#include "IDBTransaction.h"
#include "DatabaseInfo.h"
#include "DictionaryHelpers.h"
#define FILE_COPY_BUFFER_SIZE 32768
USING_INDEXEDDB_NAMESPACE
namespace {
class AddHelper : public AsyncConnectionHelper
{
public:
AddHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore,
StructuredCloneWriteInfo& aCloneWriteInfo,
const Key& aKey,
bool aOverwrite,
nsTArray<IndexUpdateInfo>& aIndexUpdateInfo)
: AsyncConnectionHelper(aTransaction, aRequest), mObjectStore(aObjectStore),
mKey(aKey), mOverwrite(aOverwrite)
{
mCloneWriteInfo.Swap(aCloneWriteInfo);
mIndexUpdateInfo.SwapElements(aIndexUpdateInfo);
}
~AddHelper()
{
IDBObjectStore::ClearStructuredCloneBuffer(mCloneWriteInfo.mCloneBuffer);
}
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult GetSuccessResult(JSContext* aCx,
jsval* aVal);
void ReleaseMainThreadObjects()
{
mObjectStore = nsnull;
IDBObjectStore::ClearStructuredCloneBuffer(mCloneWriteInfo.mCloneBuffer);
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
private:
// In-params.
nsRefPtr<IDBObjectStore> mObjectStore;
// These may change in the autoincrement case.
StructuredCloneWriteInfo mCloneWriteInfo;
Key mKey;
const bool mOverwrite;
nsTArray<IndexUpdateInfo> mIndexUpdateInfo;
};
class GetHelper : public AsyncConnectionHelper
{
public:
GetHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore,
IDBKeyRange* aKeyRange)
: AsyncConnectionHelper(aTransaction, aRequest), mObjectStore(aObjectStore),
mKeyRange(aKeyRange)
{ }
~GetHelper()
{
IDBObjectStore::ClearStructuredCloneBuffer(mCloneReadInfo.mCloneBuffer);
}
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult GetSuccessResult(JSContext* aCx,
jsval* aVal);
void ReleaseMainThreadObjects()
{
mObjectStore = nsnull;
mKeyRange = nsnull;
IDBObjectStore::ClearStructuredCloneBuffer(mCloneReadInfo.mCloneBuffer);
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
protected:
// In-params.
nsRefPtr<IDBObjectStore> mObjectStore;
nsRefPtr<IDBKeyRange> mKeyRange;
private:
// Out-params.
StructuredCloneReadInfo mCloneReadInfo;
};
class DeleteHelper : public GetHelper
{
public:
DeleteHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore,
IDBKeyRange* aKeyRange)
: GetHelper(aTransaction, aRequest, aObjectStore, aKeyRange)
{ }
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult GetSuccessResult(JSContext* aCx,
jsval* aVal);
};
class ClearHelper : public AsyncConnectionHelper
{
public:
ClearHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore)
: AsyncConnectionHelper(aTransaction, aRequest), mObjectStore(aObjectStore)
{ }
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
void ReleaseMainThreadObjects()
{
mObjectStore = nsnull;
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
protected:
// In-params.
nsRefPtr<IDBObjectStore> mObjectStore;
};
class OpenCursorHelper : public AsyncConnectionHelper
{
public:
OpenCursorHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore,
IDBKeyRange* aKeyRange,
PRUint16 aDirection)
: AsyncConnectionHelper(aTransaction, aRequest), mObjectStore(aObjectStore),
mKeyRange(aKeyRange), mDirection(aDirection)
{ }
~OpenCursorHelper()
{
IDBObjectStore::ClearStructuredCloneBuffer(mCloneReadInfo.mCloneBuffer);
}
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult GetSuccessResult(JSContext* aCx,
jsval* aVal);
void ReleaseMainThreadObjects()
{
mObjectStore = nsnull;
mKeyRange = nsnull;
IDBObjectStore::ClearStructuredCloneBuffer(mCloneReadInfo.mCloneBuffer);
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
private:
// In-params.
nsRefPtr<IDBObjectStore> mObjectStore;
nsRefPtr<IDBKeyRange> mKeyRange;
const PRUint16 mDirection;
// Out-params.
Key mKey;
StructuredCloneReadInfo mCloneReadInfo;
nsCString mContinueQuery;
nsCString mContinueToQuery;
Key mRangeKey;
};
class CreateIndexHelper : public AsyncConnectionHelper
{
public:
CreateIndexHelper(IDBTransaction* aTransaction, IDBIndex* aIndex);
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult OnSuccess()
{
return NS_OK;
}
void OnError()
{
NS_ASSERTION(mTransaction->IsAborted(), "How else can this fail?!");
}
void ReleaseMainThreadObjects()
{
mIndex = nsnull;
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
private:
nsresult InsertDataFromObjectStore(mozIStorageConnection* aConnection);
static void DestroyTLSEntry(void* aPtr);
static PRUintn sTLSIndex;
// In-params.
nsRefPtr<IDBIndex> mIndex;
};
PRUintn CreateIndexHelper::sTLSIndex = PRUintn(BAD_TLS_INDEX);
class DeleteIndexHelper : public AsyncConnectionHelper
{
public:
DeleteIndexHelper(IDBTransaction* aTransaction,
const nsAString& aName,
IDBObjectStore* aObjectStore)
: AsyncConnectionHelper(aTransaction, nsnull), mName(aName),
mObjectStore(aObjectStore)
{ }
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult OnSuccess()
{
return NS_OK;
}
void OnError()
{
NS_ASSERTION(mTransaction->IsAborted(), "How else can this fail?!");
}
void ReleaseMainThreadObjects()
{
mObjectStore = nsnull;
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
private:
// In-params
nsString mName;
nsRefPtr<IDBObjectStore> mObjectStore;
};
class GetAllHelper : public AsyncConnectionHelper
{
public:
GetAllHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore,
IDBKeyRange* aKeyRange,
const PRUint32 aLimit)
: AsyncConnectionHelper(aTransaction, aRequest), mObjectStore(aObjectStore),
mKeyRange(aKeyRange), mLimit(aLimit)
{ }
~GetAllHelper()
{
for (PRUint32 index = 0; index < mCloneReadInfos.Length(); index++) {
IDBObjectStore::ClearStructuredCloneBuffer(
mCloneReadInfos[index].mCloneBuffer);
}
}
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult GetSuccessResult(JSContext* aCx,
jsval* aVal);
void ReleaseMainThreadObjects()
{
mObjectStore = nsnull;
mKeyRange = nsnull;
for (PRUint32 index = 0; index < mCloneReadInfos.Length(); index++) {
IDBObjectStore::ClearStructuredCloneBuffer(
mCloneReadInfos[index].mCloneBuffer);
}
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
protected:
// In-params.
nsRefPtr<IDBObjectStore> mObjectStore;
nsRefPtr<IDBKeyRange> mKeyRange;
const PRUint32 mLimit;
private:
// Out-params.
nsTArray<StructuredCloneReadInfo> mCloneReadInfos;
};
class CountHelper : public AsyncConnectionHelper
{
public:
CountHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore,
IDBKeyRange* aKeyRange)
: AsyncConnectionHelper(aTransaction, aRequest), mObjectStore(aObjectStore),
mKeyRange(aKeyRange), mCount(0)
{ }
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult GetSuccessResult(JSContext* aCx,
jsval* aVal);
void ReleaseMainThreadObjects()
{
mObjectStore = nsnull;
mKeyRange = nsnull;
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
protected:
nsRefPtr<IDBObjectStore> mObjectStore;
nsRefPtr<IDBKeyRange> mKeyRange;
private:
PRUint64 mCount;
};
NS_STACK_CLASS
class AutoRemoveIndex
{
public:
AutoRemoveIndex(ObjectStoreInfo* aObjectStoreInfo,
const nsAString& aIndexName)
: mObjectStoreInfo(aObjectStoreInfo), mIndexName(aIndexName)
{ }
~AutoRemoveIndex()
{
if (mObjectStoreInfo) {
for (PRUint32 i = 0; i < mObjectStoreInfo->indexes.Length(); i++) {
if (mObjectStoreInfo->indexes[i].name == mIndexName) {
mObjectStoreInfo->indexes.RemoveElementAt(i);
break;
}
}
}
}
void forget()
{
mObjectStoreInfo = nsnull;
}
private:
ObjectStoreInfo* mObjectStoreInfo;
nsString mIndexName;
};
inline
bool
IgnoreWhitespace(PRUnichar c)
{
return false;
}
typedef nsCharSeparatedTokenizerTemplate<IgnoreWhitespace> KeyPathTokenizer;
inline
nsresult
GetJSValFromKeyPath(JSContext* aCx,
jsval aVal,
const nsAString& aKeyPath,
jsval& aKey)
{
NS_ASSERTION(aCx, "Null pointer!");
// aVal can be primitive iff the key path is empty.
NS_ASSERTION(IDBObjectStore::IsValidKeyPath(aCx, aKeyPath),
"This will explode!");
KeyPathTokenizer tokenizer(aKeyPath, '.');
jsval intermediate = aVal;
while (tokenizer.hasMoreTokens()) {
const nsDependentSubstring& token = tokenizer.nextToken();
NS_ASSERTION(!token.IsEmpty(), "Should be a valid keypath");
const jschar* keyPathChars = token.BeginReading();
const size_t keyPathLen = token.Length();
if (JSVAL_IS_PRIMITIVE(intermediate)) {
intermediate = JSVAL_VOID;
break;
}
JSBool ok = JS_GetUCProperty(aCx, JSVAL_TO_OBJECT(intermediate),
keyPathChars, keyPathLen, &intermediate);
NS_ENSURE_TRUE(ok, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
aKey = intermediate;
return NS_OK;
}
inline
nsresult
GetKeyFromValue(JSContext* aCx,
jsval aVal,
const nsAString& aKeyPath,
Key& aKey)
{
jsval key;
nsresult rv = GetJSValFromKeyPath(aCx, aVal, aKeyPath, key);
NS_ENSURE_SUCCESS(rv, rv);
if (NS_FAILED(aKey.SetFromJSVal(aCx, key))) {
aKey.Unset();
}
return NS_OK;
}
inline
nsresult
GetKeyFromValue(JSContext* aCx,
jsval aVal,
const nsTArray<nsString>& aKeyPathArray,
Key& aKey)
{
NS_ASSERTION(!aKeyPathArray.IsEmpty(),
"Should not use empty keyPath array");
for (PRUint32 i = 0; i < aKeyPathArray.Length(); ++i) {
jsval key;
nsresult rv = GetJSValFromKeyPath(aCx, aVal, aKeyPathArray[i], key);
NS_ENSURE_SUCCESS(rv, rv);
if (NS_FAILED(aKey.AppendArrayItem(aCx, i == 0, key))) {
NS_ASSERTION(aKey.IsUnset(), "Encoding error should unset");
return NS_OK;
}
}
aKey.FinishArray();
return NS_OK;
}
inline
already_AddRefed<IDBRequest>
GenerateRequest(IDBObjectStore* aObjectStore)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
IDBDatabase* database = aObjectStore->Transaction()->Database();
return IDBRequest::Create(aObjectStore, database,
aObjectStore->Transaction());
}
JSClass gDummyPropClass = {
"dummy", 0,
JS_PropertyStub, JS_PropertyStub,
JS_PropertyStub, JS_StrictPropertyStub,
JS_EnumerateStub, JS_ResolveStub,
JS_ConvertStub, JS_FinalizeStub,
JSCLASS_NO_OPTIONAL_MEMBERS
};
} // anonymous namespace
// static
already_AddRefed<IDBObjectStore>
IDBObjectStore::Create(IDBTransaction* aTransaction,
ObjectStoreInfo* aStoreInfo,
nsIAtom* aDatabaseId)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsRefPtr<IDBObjectStore> objectStore = new IDBObjectStore();
objectStore->mTransaction = aTransaction;
objectStore->mName = aStoreInfo->name;
objectStore->mId = aStoreInfo->id;
objectStore->mKeyPath = aStoreInfo->keyPath;
objectStore->mKeyPathArray = aStoreInfo->keyPathArray;
objectStore->mAutoIncrement = !!aStoreInfo->nextAutoIncrementId;
objectStore->mDatabaseId = aDatabaseId;
objectStore->mInfo = aStoreInfo;
return objectStore.forget();
}
// static
bool
IDBObjectStore::IsValidKeyPath(JSContext* aCx,
const nsAString& aKeyPath)
{
NS_ASSERTION(!aKeyPath.IsVoid(), "What?");
KeyPathTokenizer tokenizer(aKeyPath, '.');
while (tokenizer.hasMoreTokens()) {
nsString token(tokenizer.nextToken());
if (!token.Length()) {
return false;
}
jsval stringVal;
if (!xpc::StringToJsval(aCx, token, &stringVal)) {
return false;
}
NS_ASSERTION(JSVAL_IS_STRING(stringVal), "This should never happen");
JSString* str = JSVAL_TO_STRING(stringVal);
JSBool isIdentifier = JS_FALSE;
if (!JS_IsIdentifier(aCx, str, &isIdentifier) || !isIdentifier) {
return false;
}
}
// If the very last character was a '.', the tokenizer won't give us an empty
// token, but the keyPath is still invalid.
if (!aKeyPath.IsEmpty() &&
aKeyPath.CharAt(aKeyPath.Length() - 1) == '.') {
return false;
}
return true;
}
// static
nsresult
IDBObjectStore::AppendIndexUpdateInfo(PRInt64 aIndexID,
const nsAString& aKeyPath,
const nsTArray<nsString>& aKeyPathArray,
bool aUnique,
bool aMultiEntry,
JSContext* aCx,
jsval aVal,
nsTArray<IndexUpdateInfo>& aUpdateInfoArray)
{
nsresult rv;
if (!aKeyPathArray.IsEmpty()) {
Key arrayKey;
rv = GetKeyFromValue(aCx, aVal, aKeyPathArray, arrayKey);
NS_ENSURE_SUCCESS(rv, rv);
if (!arrayKey.IsUnset()) {
IndexUpdateInfo* updateInfo = aUpdateInfoArray.AppendElement();
updateInfo->indexId = aIndexID;
updateInfo->indexUnique = aUnique;
updateInfo->value = arrayKey;
}
return NS_OK;
}
jsval key;
rv = GetJSValFromKeyPath(aCx, aVal, aKeyPath, key);
NS_ENSURE_SUCCESS(rv, rv);
if (aMultiEntry && !JSVAL_IS_PRIMITIVE(key) &&
JS_IsArrayObject(aCx, JSVAL_TO_OBJECT(key))) {
JSObject* array = JSVAL_TO_OBJECT(key);
jsuint arrayLength;
if (!JS_GetArrayLength(aCx, array, &arrayLength)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
for (jsuint arrayIndex = 0; arrayIndex < arrayLength; arrayIndex++) {
jsval arrayItem;
if (!JS_GetElement(aCx, array, arrayIndex, &arrayItem)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
Key value;
if (NS_FAILED(value.SetFromJSVal(aCx, arrayItem)) ||
value.IsUnset()) {
// Not a value we can do anything with, ignore it.
continue;
}
IndexUpdateInfo* updateInfo = aUpdateInfoArray.AppendElement();
updateInfo->indexId = aIndexID;
updateInfo->indexUnique = aUnique;
updateInfo->value = value;
}
}
else {
Key value;
if (NS_FAILED(value.SetFromJSVal(aCx, key)) ||
value.IsUnset()) {
// Not a value we can do anything with, ignore it.
return NS_OK;
}
IndexUpdateInfo* updateInfo = aUpdateInfoArray.AppendElement();
updateInfo->indexId = aIndexID;
updateInfo->indexUnique = aUnique;
updateInfo->value = value;
}
return NS_OK;
}
// static
nsresult
IDBObjectStore::UpdateIndexes(IDBTransaction* aTransaction,
PRInt64 aObjectStoreId,
const Key& aObjectStoreKey,
bool aOverwrite,
PRInt64 aObjectDataId,
const nsTArray<IndexUpdateInfo>& aUpdateInfoArray)
{
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv;
NS_ASSERTION(aObjectDataId != LL_MININT, "Bad objectData id!");
NS_NAMED_LITERAL_CSTRING(objectDataId, "object_data_id");
if (aOverwrite) {
stmt = aTransaction->GetCachedStatement(
"DELETE FROM unique_index_data "
"WHERE object_data_id = :object_data_id; "
"DELETE FROM index_data "
"WHERE object_data_id = :object_data_id");
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindInt64ByName(objectDataId, aObjectDataId);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
}
PRUint32 infoCount = aUpdateInfoArray.Length();
for (PRUint32 i = 0; i < infoCount; i++) {
const IndexUpdateInfo& updateInfo = aUpdateInfoArray[i];
// Insert new values.
stmt = updateInfo.indexUnique ?
aTransaction->GetCachedStatement(
"INSERT INTO unique_index_data "
"(index_id, object_data_id, object_data_key, value) "
"VALUES (:index_id, :object_data_id, :object_data_key, :value)") :
aTransaction->GetCachedStatement(
"INSERT OR IGNORE INTO index_data ("
"index_id, object_data_id, object_data_key, value) "
"VALUES (:index_id, :object_data_id, :object_data_key, :value)");
NS_ENSURE_TRUE(stmt, NS_ERROR_FAILURE);
mozStorageStatementScoper scoper4(stmt);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"),
updateInfo.indexId);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64ByName(objectDataId, aObjectDataId);
NS_ENSURE_SUCCESS(rv, rv);
rv = aObjectStoreKey.BindToStatement(stmt,
NS_LITERAL_CSTRING("object_data_key"));
NS_ENSURE_SUCCESS(rv, rv);
rv = updateInfo.value.BindToStatement(stmt, NS_LITERAL_CSTRING("value"));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
if (rv == NS_ERROR_STORAGE_CONSTRAINT && updateInfo.indexUnique) {
// If we're inserting multiple entries for the same unique index, then
// we might have failed to insert due to colliding with another entry for
// the same index in which case we should ignore it.
for (PRInt32 j = (PRInt32)i - 1;
j >= 0 && aUpdateInfoArray[j].indexId == updateInfo.indexId;
--j) {
if (updateInfo.value == aUpdateInfoArray[j].value) {
// We found a key with the same value for the same index. So we
// must have had a collision with a value we just inserted.
rv = NS_OK;
break;
}
}
}
if (NS_FAILED(rv)) {
return rv;
}
}
return NS_OK;
}
// static
nsresult
IDBObjectStore::GetStructuredCloneReadInfoFromStatement(
mozIStorageStatement* aStatement,
PRUint32 aDataIndex,
PRUint32 aFileIdsIndex,
FileManager* aFileManager,
StructuredCloneReadInfo& aInfo)
{
#ifdef DEBUG
{
PRInt32 type;
NS_ASSERTION(NS_SUCCEEDED(aStatement->GetTypeOfIndex(aDataIndex, &type)) &&
type == mozIStorageStatement::VALUE_TYPE_BLOB,
"Bad value type!");
}
#endif
const PRUint8* blobData;
PRUint32 blobDataLength;
nsresult rv = aStatement->GetSharedBlob(aDataIndex, &blobDataLength,
&blobData);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
const char* compressed = reinterpret_cast<const char*>(blobData);
size_t compressedLength = size_t(blobDataLength);
size_t uncompressedLength;
if (!snappy::GetUncompressedLength(compressed, compressedLength,
&uncompressedLength)) {
NS_WARNING("Snappy can't determine uncompressed length!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsAutoArrayPtr<char> uncompressed(new char[uncompressedLength]);
if (!snappy::RawUncompress(compressed, compressedLength,
uncompressed.get())) {
NS_WARNING("Snappy can't determine uncompressed length!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
JSAutoStructuredCloneBuffer& buffer = aInfo.mCloneBuffer;
if (!buffer.copy(reinterpret_cast<const uint64_t *>(uncompressed.get()),
uncompressedLength)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
bool isNull;
rv = aStatement->GetIsNull(aFileIdsIndex, &isNull);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (isNull) {
return NS_OK;
}
nsString ids;
rv = aStatement->GetString(aFileIdsIndex, ids);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsAutoTArray<PRInt64, 10> array;
rv = ConvertFileIdsToArray(ids, array);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
for (PRUint32 i = 0; i < array.Length(); i++) {
const PRInt64& id = array.ElementAt(i);
nsRefPtr<FileInfo> fileInfo = aFileManager->GetFileInfo(id);
NS_ASSERTION(fileInfo, "Null file info!");
aInfo.mFileInfos.AppendElement(fileInfo);
}
return NS_OK;
}
// static
void
IDBObjectStore::ClearStructuredCloneBuffer(JSAutoStructuredCloneBuffer& aBuffer)
{
if (aBuffer.data()) {
aBuffer.clear();
}
}
// static
bool
IDBObjectStore::DeserializeValue(JSContext* aCx,
StructuredCloneReadInfo& aCloneReadInfo,
jsval* aValue)
{
NS_ASSERTION(NS_IsMainThread(),
"Should only be deserializing on the main thread!");
NS_ASSERTION(aCx, "A JSContext is required!");
JSAutoStructuredCloneBuffer& buffer = aCloneReadInfo.mCloneBuffer;
if (!buffer.data()) {
*aValue = JSVAL_VOID;
return true;
}
JSAutoRequest ar(aCx);
JSStructuredCloneCallbacks callbacks = {
IDBObjectStore::StructuredCloneReadCallback,
nsnull,
nsnull
};
return buffer.read(aCx, aValue, &callbacks, &aCloneReadInfo);
}
// static
bool
IDBObjectStore::SerializeValue(JSContext* aCx,
StructuredCloneWriteInfo& aCloneWriteInfo,
jsval aValue)
{
NS_ASSERTION(NS_IsMainThread(),
"Should only be serializing on the main thread!");
NS_ASSERTION(aCx, "A JSContext is required!");
JSAutoRequest ar(aCx);
JSStructuredCloneCallbacks callbacks = {
nsnull,
StructuredCloneWriteCallback,
nsnull
};
JSAutoStructuredCloneBuffer& buffer = aCloneWriteInfo.mCloneBuffer;
return buffer.write(aCx, aValue, &callbacks, &aCloneWriteInfo);
}
static inline PRUint32
SwapBytes(PRUint32 u)
{
#ifdef IS_BIG_ENDIAN
return ((u & 0x000000ffU) << 24) |
((u & 0x0000ff00U) << 8) |
((u & 0x00ff0000U) >> 8) |
((u & 0xff000000U) >> 24);
#else
return u;
#endif
}
static inline double
SwapBytes(PRUint64 u)
{
#ifdef IS_BIG_ENDIAN
return ((u & 0x00000000000000ffLLU) << 56) |
((u & 0x000000000000ff00LLU) << 40) |
((u & 0x0000000000ff0000LLU) << 24) |
((u & 0x00000000ff000000LLU) << 8) |
((u & 0x000000ff00000000LLU) >> 8) |
((u & 0x0000ff0000000000LLU) >> 24) |
((u & 0x00ff000000000000LLU) >> 40) |
((u & 0xff00000000000000LLU) >> 56);
#else
return double(u);
#endif
}
static inline bool
StructuredCloneReadString(JSStructuredCloneReader* aReader,
nsCString& aString)
{
PRUint32 length;
if (!JS_ReadBytes(aReader, &length, sizeof(PRUint32))) {
NS_WARNING("Failed to read length!");
return false;
}
length = SwapBytes(length);
if (!EnsureStringLength(aString, length)) {
NS_WARNING("Out of memory?");
return false;
}
char* buffer = aString.BeginWriting();
if (!JS_ReadBytes(aReader, buffer, length)) {
NS_WARNING("Failed to read type!");
return false;
}
return true;
}
JSObject*
IDBObjectStore::StructuredCloneReadCallback(JSContext* aCx,
JSStructuredCloneReader* aReader,
uint32_t aTag,
uint32_t aData,
void* aClosure)
{
if (aTag == SCTAG_DOM_BLOB || aTag == SCTAG_DOM_FILE) {
StructuredCloneReadInfo* cloneReadInfo =
reinterpret_cast<StructuredCloneReadInfo*>(aClosure);
NS_ASSERTION(aData < cloneReadInfo->mFileInfos.Length(),
"Bad blob index!");
nsRefPtr<FileInfo> fileInfo = cloneReadInfo->mFileInfos[aData];
nsRefPtr<FileManager> fileManager = fileInfo->Manager();
nsCOMPtr<nsIFile> directory = fileManager->GetDirectory();
if (!directory) {
return nsnull;
}
nsCOMPtr<nsIFile> nativeFile =
fileManager->GetFileForId(directory, fileInfo->Id());
if (!nativeFile) {
return nsnull;
}
PRUint64 size;
if (!JS_ReadBytes(aReader, &size, sizeof(PRUint64))) {
NS_WARNING("Failed to read size!");
return nsnull;
}
size = SwapBytes(size);
nsCString type;
if (!StructuredCloneReadString(aReader, type)) {
return nsnull;
}
NS_ConvertUTF8toUTF16 convType(type);
if (aTag == SCTAG_DOM_BLOB) {
nsCOMPtr<nsIDOMBlob> blob = new nsDOMFileFile(convType, size,
nativeFile, fileInfo);
jsval wrappedBlob;
nsresult rv =
nsContentUtils::WrapNative(aCx, JS_GetGlobalForScopeChain(aCx), blob,
&NS_GET_IID(nsIDOMBlob), &wrappedBlob);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to wrap native!");
return nsnull;
}
return JSVAL_TO_OBJECT(wrappedBlob);
}
nsCString name;
if (!StructuredCloneReadString(aReader, name)) {
return nsnull;
}
NS_ConvertUTF8toUTF16 convName(name);
nsCOMPtr<nsIDOMFile> file = new nsDOMFileFile(convName, convType, size,
nativeFile, fileInfo);
jsval wrappedFile;
nsresult rv =
nsContentUtils::WrapNative(aCx, JS_GetGlobalForScopeChain(aCx), file,
&NS_GET_IID(nsIDOMFile), &wrappedFile);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to wrap native!");
return nsnull;
}
return JSVAL_TO_OBJECT(wrappedFile);
}
const JSStructuredCloneCallbacks* runtimeCallbacks =
js::GetContextStructuredCloneCallbacks(aCx);
if (runtimeCallbacks) {
return runtimeCallbacks->read(aCx, aReader, aTag, aData, nsnull);
}
return nsnull;
}
JSBool
IDBObjectStore::StructuredCloneWriteCallback(JSContext* aCx,
JSStructuredCloneWriter* aWriter,
JSObject* aObj,
void* aClosure)
{
StructuredCloneWriteInfo* cloneWriteInfo =
reinterpret_cast<StructuredCloneWriteInfo*>(aClosure);
if (JS_GetClass(aObj) == &gDummyPropClass) {
NS_ASSERTION(cloneWriteInfo->mOffsetToKeyProp == 0,
"We should not have been here before!");
cloneWriteInfo->mOffsetToKeyProp = js_GetSCOffset(aWriter);
PRUint64 value = 0;
return JS_WriteBytes(aWriter, &value, sizeof(value));
}
nsCOMPtr<nsIXPConnectWrappedNative> wrappedNative;
nsContentUtils::XPConnect()->
GetWrappedNativeOfJSObject(aCx, aObj, getter_AddRefs(wrappedNative));
if (wrappedNative) {
nsISupports* supports = wrappedNative->Native();
nsCOMPtr<nsIDOMBlob> blob = do_QueryInterface(supports);
if (blob) {
nsCOMPtr<nsIDOMFile> file = do_QueryInterface(blob);
PRUint64 size;
if (NS_FAILED(blob->GetSize(&size))) {
return false;
}
size = SwapBytes(size);
nsString type;
if (NS_FAILED(blob->GetType(type))) {
return false;
}
NS_ConvertUTF16toUTF8 convType(type);
PRUint32 convTypeLength = SwapBytes(convType.Length());
if (!JS_WriteUint32Pair(aWriter, file ? SCTAG_DOM_FILE : SCTAG_DOM_BLOB,
cloneWriteInfo->mBlobs.Length()) ||
!JS_WriteBytes(aWriter, &size, sizeof(PRUint64)) ||
!JS_WriteBytes(aWriter, &convTypeLength, sizeof(PRUint32)) ||
!JS_WriteBytes(aWriter, convType.get(), convType.Length())) {
return false;
}
if (file) {
nsString name;
if (NS_FAILED(file->GetName(name))) {
return false;
}
NS_ConvertUTF16toUTF8 convName(name);
PRUint32 convNameLength = SwapBytes(convName.Length());
if (!JS_WriteBytes(aWriter, &convNameLength, sizeof(PRUint32)) ||
!JS_WriteBytes(aWriter, convName.get(), convName.Length())) {
return false;
}
}
cloneWriteInfo->mBlobs.AppendElement(blob);
return true;
}
}
// try using the runtime callbacks
const JSStructuredCloneCallbacks* runtimeCallbacks =
js::GetContextStructuredCloneCallbacks(aCx);
if (runtimeCallbacks) {
return runtimeCallbacks->write(aCx, aWriter, aObj, nsnull);
}
return false;
}
nsresult
IDBObjectStore::ConvertFileIdsToArray(const nsAString& aFileIds,
nsTArray<PRInt64>& aResult)
{
nsCharSeparatedTokenizerTemplate<IgnoreWhitespace> tokenizer(aFileIds, ' ');
while (tokenizer.hasMoreTokens()) {
nsString token(tokenizer.nextToken());
NS_ASSERTION(!token.IsEmpty(), "Should be a valid id!");
nsresult rv;
PRInt32 id = token.ToInteger(&rv);
NS_ENSURE_SUCCESS(rv, rv);
PRInt64* element = aResult.AppendElement();
*element = id;
}
return NS_OK;
}
IDBObjectStore::IDBObjectStore()
: mId(LL_MININT),
mAutoIncrement(false)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
}
IDBObjectStore::~IDBObjectStore()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
}
nsresult
IDBObjectStore::GetAddInfo(JSContext* aCx,
jsval aValue,
jsval aKeyVal,
StructuredCloneWriteInfo& aCloneWriteInfo,
Key& aKey,
nsTArray<IndexUpdateInfo>& aUpdateInfoArray)
{
nsresult rv;
// Return DATA_ERR if a key was passed in and this objectStore uses inline
// keys.
if (!JSVAL_IS_VOID(aKeyVal) && HasKeyPath()) {
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
JSAutoRequest ar(aCx);
if (!HasKeyPath()) {
// Out-of-line keys must be passed in.
rv = aKey.SetFromJSVal(aCx, aKeyVal);
NS_ENSURE_SUCCESS(rv, rv);
}
else if (!mAutoIncrement) {
// Inline keys live on the object. Make sure that the value passed in is an
// object.
if (UsesKeyPathArray()) {
rv = GetKeyFromValue(aCx, aValue, mKeyPathArray, aKey);
}
else {
rv = GetKeyFromValue(aCx, aValue, mKeyPath, aKey);
}
NS_ENSURE_SUCCESS(rv, rv);
}
// Return DATA_ERR if no key was specified this isn't an autoIncrement
// objectStore.
if (aKey.IsUnset() && !mAutoIncrement) {
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
// Figure out indexes and the index values to update here.
PRUint32 count = mInfo->indexes.Length();
aUpdateInfoArray.SetCapacity(count); // Pretty good estimate
for (PRUint32 indexesIndex = 0; indexesIndex < count; indexesIndex++) {
const IndexInfo& indexInfo = mInfo->indexes[indexesIndex];
rv = AppendIndexUpdateInfo(indexInfo.id, indexInfo.keyPath,
indexInfo.keyPathArray, indexInfo.unique,
indexInfo.multiEntry, aCx, aValue,
aUpdateInfoArray);
NS_ENSURE_SUCCESS(rv, rv);
}
nsString targetObjectPropName;
JSObject* targetObject = nsnull;
rv = NS_OK;
if (mAutoIncrement && HasKeyPath()) {
NS_ASSERTION(aKey.IsUnset(), "Shouldn't have gotten the key yet!");
if (JSVAL_IS_PRIMITIVE(aValue)) {
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
KeyPathTokenizer tokenizer(mKeyPath, '.');
NS_ASSERTION(tokenizer.hasMoreTokens(),
"Shouldn't have empty keypath and autoincrement");
JSObject* obj = JSVAL_TO_OBJECT(aValue);
while (tokenizer.hasMoreTokens()) {
const nsDependentSubstring& token = tokenizer.nextToken();
NS_ASSERTION(!token.IsEmpty(), "Should be a valid keypath");
const jschar* keyPathChars = token.BeginReading();
const size_t keyPathLen = token.Length();
JSBool hasProp;
if (!targetObject) {
// We're still walking the chain of existing objects
JSBool ok = JS_HasUCProperty(aCx, obj, keyPathChars, keyPathLen,
&hasProp);
NS_ENSURE_TRUE(ok, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (hasProp) {
// Get if the property exists...
jsval intermediate;
JSBool ok = JS_GetUCProperty(aCx, obj, keyPathChars, keyPathLen,
&intermediate);
NS_ENSURE_TRUE(ok, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (tokenizer.hasMoreTokens()) {
// ...and walk to it if there are more steps...
if (JSVAL_IS_PRIMITIVE(intermediate)) {
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
obj = JSVAL_TO_OBJECT(intermediate);
}
else {
// ...otherwise use it as key
aKey.SetFromJSVal(aCx, intermediate);
if (aKey.IsUnset()) {
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
}
}
else {
// If the property doesn't exist, fall into below path of starting
// to define properties
targetObject = obj;
targetObjectPropName = token;
}
}
if (targetObject) {
// We have started inserting new objects or are about to just insert
// the first one.
if (tokenizer.hasMoreTokens()) {
// If we're not at the end, we need to add a dummy object to the chain.
JSObject* dummy = JS_NewObject(aCx, nsnull, nsnull, nsnull);
if (!dummy) {
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
break;
}
if (!JS_DefineUCProperty(aCx, obj, token.BeginReading(),
token.Length(),
OBJECT_TO_JSVAL(dummy), nsnull, nsnull,
JSPROP_ENUMERATE)) {
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
break;
}
obj = dummy;
}
else {
JSObject* dummy = JS_NewObject(aCx, &gDummyPropClass, nsnull, nsnull);
if (!dummy) {
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
break;
}
if (!JS_DefineUCProperty(aCx, obj, token.BeginReading(),
token.Length(), OBJECT_TO_JSVAL(dummy),
nsnull, nsnull, JSPROP_ENUMERATE)) {
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
break;
}
}
}
}
}
aCloneWriteInfo.mOffsetToKeyProp = 0;
// We guard on rv being a success because we need to run the property
// deletion code below even if we should not be serializing the value
if (NS_SUCCEEDED(rv) &&
!IDBObjectStore::SerializeValue(aCx, aCloneWriteInfo, aValue)) {
rv = NS_ERROR_DOM_DATA_CLONE_ERR;
}
if (targetObject) {
// If this fails, we lose, and the web page sees a magical property
// appear on the object :-(
jsval succeeded;
if (!JS_DeleteUCProperty2(aCx, targetObject,
targetObjectPropName.get(),
targetObjectPropName.Length(), &succeeded)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
NS_ASSERTION(JSVAL_IS_BOOLEAN(succeeded), "Wtf?");
NS_ENSURE_TRUE(JSVAL_TO_BOOLEAN(succeeded),
NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
return rv;
}
nsresult
IDBObjectStore::AddOrPut(const jsval& aValue,
const jsval& aKey,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval,
bool aOverwrite)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
if (!IsWriteAllowed()) {
return NS_ERROR_DOM_INDEXEDDB_READ_ONLY_ERR;
}
jsval keyval = (aOptionalArgCount >= 1) ? aKey : JSVAL_VOID;
StructuredCloneWriteInfo cloneWriteInfo;
Key key;
nsTArray<IndexUpdateInfo> updateInfo;
nsresult rv = GetAddInfo(aCx, aValue, keyval, cloneWriteInfo, key,
updateInfo);
if (NS_FAILED(rv)) {
return rv;
}
nsRefPtr<IDBRequest> request = GenerateRequest(this);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<AddHelper> helper =
new AddHelper(mTransaction, request, this, cloneWriteInfo, key, aOverwrite,
updateInfo);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
request.forget(_retval);
return NS_OK;
}
NS_IMPL_CYCLE_COLLECTION_CLASS(IDBObjectStore)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IDBObjectStore)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR_AMBIGUOUS(mTransaction,
nsIDOMEventTarget)
for (PRUint32 i = 0; i < tmp->mCreatedIndexes.Length(); i++) {
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mCreatedIndexes[i]");
cb.NoteXPCOMChild(static_cast<nsIIDBIndex*>(tmp->mCreatedIndexes[i].get()));
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IDBObjectStore)
// Don't unlink mTransaction!
tmp->mCreatedIndexes.Clear();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IDBObjectStore)
NS_INTERFACE_MAP_ENTRY(nsIIDBObjectStore)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(IDBObjectStore)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(IDBObjectStore)
NS_IMPL_CYCLE_COLLECTING_RELEASE(IDBObjectStore)
DOMCI_DATA(IDBObjectStore, IDBObjectStore)
NS_IMETHODIMP
IDBObjectStore::GetName(nsAString& aName)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
aName.Assign(mName);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetKeyPath(JSContext* aCx,
jsval* aVal)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (UsesKeyPathArray()) {
JSObject* array = JS_NewArrayObject(aCx, mKeyPathArray.Length(), nsnull);
if (!array) {
NS_WARNING("Failed to make array!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
for (PRUint32 i = 0; i < mKeyPathArray.Length(); ++i) {
jsval val;
nsString tmp(mKeyPathArray[i]);
if (!xpc::StringToJsval(aCx, tmp, &val)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (!JS_SetElement(aCx, array, i, &val)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
}
*aVal = OBJECT_TO_JSVAL(array);
}
else {
nsString tmp(mKeyPath);
if (!xpc::StringToJsval(aCx, tmp, aVal)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
}
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetTransaction(nsIIDBTransaction** aTransaction)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsCOMPtr<nsIIDBTransaction> transaction(mTransaction);
transaction.forget(aTransaction);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetAutoIncrement(bool* aAutoIncrement)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
*aAutoIncrement = mAutoIncrement;
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetIndexNames(nsIDOMDOMStringList** aIndexNames)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsRefPtr<nsDOMStringList> list(new nsDOMStringList());
PRUint32 count = mInfo->indexes.Length();
for (PRUint32 index = 0; index < count; index++) {
NS_ENSURE_TRUE(list->Add(mInfo->indexes[index].name),
NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
list.forget(aIndexNames);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Get(const jsval& aKey,
JSContext* aCx,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
nsRefPtr<IDBKeyRange> keyRange;
nsresult rv = IDBKeyRange::FromJSVal(aCx, aKey, getter_AddRefs(keyRange));
NS_ENSURE_SUCCESS(rv, rv);
if (!keyRange) {
// Must specify a key or keyRange for get().
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
nsRefPtr<IDBRequest> request = GenerateRequest(this);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<GetHelper> helper =
new GetHelper(mTransaction, request, this, keyRange);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetAll(const jsval& aKey,
PRUint32 aLimit,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
nsresult rv;
nsRefPtr<IDBKeyRange> keyRange;
if (aOptionalArgCount) {
rv = IDBKeyRange::FromJSVal(aCx, aKey, getter_AddRefs(keyRange));
NS_ENSURE_SUCCESS(rv, rv);
}
if (aOptionalArgCount < 2 || aLimit == 0) {
aLimit = PR_UINT32_MAX;
}
nsRefPtr<IDBRequest> request = GenerateRequest(this);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<GetAllHelper> helper =
new GetAllHelper(mTransaction, request, this, keyRange, aLimit);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Add(const jsval& aValue,
const jsval& aKey,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
return AddOrPut(aValue, aKey, aCx, aOptionalArgCount, _retval, false);
}
NS_IMETHODIMP
IDBObjectStore::Put(const jsval& aValue,
const jsval& aKey,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
return AddOrPut(aValue, aKey, aCx, aOptionalArgCount, _retval, true);
}
NS_IMETHODIMP
IDBObjectStore::Delete(const jsval& aKey,
JSContext* aCx,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
if (!IsWriteAllowed()) {
return NS_ERROR_DOM_INDEXEDDB_READ_ONLY_ERR;
}
nsRefPtr<IDBKeyRange> keyRange;
nsresult rv = IDBKeyRange::FromJSVal(aCx, aKey, getter_AddRefs(keyRange));
NS_ENSURE_SUCCESS(rv, rv);
if (!keyRange) {
// Must specify a key or keyRange for delete().
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
nsRefPtr<IDBRequest> request = GenerateRequest(this);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<DeleteHelper> helper =
new DeleteHelper(mTransaction, request, this, keyRange);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Clear(nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
if (!IsWriteAllowed()) {
return NS_ERROR_DOM_INDEXEDDB_READ_ONLY_ERR;
}
nsRefPtr<IDBRequest> request = GenerateRequest(this);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<ClearHelper> helper(new ClearHelper(mTransaction, request, this));
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::OpenCursor(const jsval& aKey,
PRUint16 aDirection,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
nsresult rv;
nsRefPtr<IDBKeyRange> keyRange;
if (aOptionalArgCount) {
rv = IDBKeyRange::FromJSVal(aCx, aKey, getter_AddRefs(keyRange));
NS_ENSURE_SUCCESS(rv, rv);
if (aOptionalArgCount >= 2) {
if (aDirection != nsIIDBCursor::NEXT &&
aDirection != nsIIDBCursor::NEXT_NO_DUPLICATE &&
aDirection != nsIIDBCursor::PREV &&
aDirection != nsIIDBCursor::PREV_NO_DUPLICATE) {
return NS_ERROR_DOM_INDEXEDDB_NON_TRANSIENT_ERR;
}
}
else {
aDirection = nsIIDBCursor::NEXT;
}
}
nsRefPtr<IDBRequest> request = GenerateRequest(this);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<OpenCursorHelper> helper =
new OpenCursorHelper(mTransaction, request, this, keyRange, aDirection);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::CreateIndex(const nsAString& aName,
const jsval& aKeyPath,
const jsval& aOptions,
JSContext* aCx,
nsIIDBIndex** _retval)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
// Get KeyPath
nsString keyPath;
nsTArray<nsString> keyPathArray;
// See if this is a JS array.
if (!JSVAL_IS_PRIMITIVE(aKeyPath) &&
JS_IsArrayObject(aCx, JSVAL_TO_OBJECT(aKeyPath))) {
JSObject* obj = JSVAL_TO_OBJECT(aKeyPath);
jsuint length;
if (!JS_GetArrayLength(aCx, obj, &length)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (!length) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
keyPathArray.SetCapacity(length);
for (jsuint index = 0; index < length; index++) {
jsval val;
JSString* jsstr;
nsDependentJSString str;
if (!JS_GetElement(aCx, obj, index, &val) ||
!(jsstr = JS_ValueToString(aCx, val)) ||
!str.init(aCx, jsstr)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (!IsValidKeyPath(aCx, str)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
keyPathArray.AppendElement(str);
}
NS_ASSERTION(!keyPathArray.IsEmpty(), "This shouldn't have happened!");
}
else {
JSString* jsstr;
nsDependentJSString str;
if (!(jsstr = JS_ValueToString(aCx, aKeyPath)) ||
!str.init(aCx, jsstr)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (!IsValidKeyPath(aCx, str)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
keyPath = str;
}
// Check name and current mode
IDBTransaction* transaction = AsyncConnectionHelper::GetCurrentTransaction();
if (!transaction ||
transaction != mTransaction ||
mTransaction->Mode() != nsIIDBTransaction::VERSION_CHANGE) {
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
bool found = false;
PRUint32 indexCount = mInfo->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (mInfo->indexes[index].name == aName) {
found = true;
break;
}
}
if (found) {
return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
}
NS_ASSERTION(mTransaction->IsOpen(), "Impossible!");
mozilla::dom::IDBIndexParameters params;
// Get optional arguments.
if (!JSVAL_IS_VOID(aOptions) && !JSVAL_IS_NULL(aOptions)) {
nsresult rv = params.Init(aCx, &aOptions);
NS_ENSURE_SUCCESS(rv, rv);
}
if (params.multiEntry && !keyPathArray.IsEmpty()) {
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
DatabaseInfo* databaseInfo = mTransaction->DBInfo();
IndexInfo* indexInfo = mInfo->indexes.AppendElement();
indexInfo->id = databaseInfo->nextIndexId++;
indexInfo->name = aName;
indexInfo->keyPath = keyPath;
indexInfo->keyPathArray.SwapElements(keyPathArray);
indexInfo->unique = params.unique;
indexInfo->multiEntry = params.multiEntry;
// Don't leave this in the list if we fail below!
AutoRemoveIndex autoRemove(mInfo, aName);
#ifdef DEBUG
for (PRUint32 index = 0; index < mCreatedIndexes.Length(); index++) {
if (mCreatedIndexes[index]->Name() == aName) {
NS_ERROR("Already created this one!");
}
}
#endif
nsRefPtr<IDBIndex> index(IDBIndex::Create(this, indexInfo));
if (!mCreatedIndexes.AppendElement(index)) {
NS_WARNING("Out of memory!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
nsRefPtr<CreateIndexHelper> helper =
new CreateIndexHelper(mTransaction, index);
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
autoRemove.forget();
index.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Index(const nsAString& aName,
nsIIDBIndex** _retval)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
IndexInfo* indexInfo = nsnull;
PRUint32 indexCount = mInfo->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (mInfo->indexes[index].name == aName) {
indexInfo = &(mInfo->indexes[index]);
break;
}
}
if (!indexInfo) {
return NS_ERROR_DOM_INDEXEDDB_NOT_FOUND_ERR;
}
nsRefPtr<IDBIndex> retval;
for (PRUint32 i = 0; i < mCreatedIndexes.Length(); i++) {
nsRefPtr<IDBIndex>& index = mCreatedIndexes[i];
if (index->Name() == aName) {
retval = index;
break;
}
}
if (!retval) {
retval = IDBIndex::Create(this, indexInfo);
NS_ENSURE_TRUE(retval, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (!mCreatedIndexes.AppendElement(retval)) {
NS_WARNING("Out of memory!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
}
retval.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::DeleteIndex(const nsAString& aName)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
IDBTransaction* transaction = AsyncConnectionHelper::GetCurrentTransaction();
if (!transaction ||
transaction != mTransaction ||
mTransaction->Mode() != nsIIDBTransaction::VERSION_CHANGE) {
return NS_ERROR_DOM_INDEXEDDB_NOT_ALLOWED_ERR;
}
NS_ASSERTION(mTransaction->IsOpen(), "Impossible!");
PRUint32 index = 0;
for (; index < mInfo->indexes.Length(); index++) {
if (mInfo->indexes[index].name == aName) {
break;
}
}
if (index == mInfo->indexes.Length()) {
return NS_ERROR_DOM_INDEXEDDB_NOT_FOUND_ERR;
}
nsRefPtr<DeleteIndexHelper> helper =
new DeleteIndexHelper(mTransaction, aName, this);
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mInfo->indexes.RemoveElementAt(index);
for (PRUint32 i = 0; i < mCreatedIndexes.Length(); i++) {
if (mCreatedIndexes[i]->Name() == aName) {
mCreatedIndexes.RemoveElementAt(i);
break;
}
}
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Count(const jsval& aKey,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
if (!mTransaction->IsOpen()) {
return NS_ERROR_DOM_INDEXEDDB_TRANSACTION_INACTIVE_ERR;
}
nsresult rv;
nsRefPtr<IDBKeyRange> keyRange;
if (aOptionalArgCount) {
rv = IDBKeyRange::FromJSVal(aCx, aKey, getter_AddRefs(keyRange));
NS_ENSURE_SUCCESS(rv, rv);
}
nsRefPtr<IDBRequest> request = GenerateRequest(this);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<CountHelper> helper =
new CountHelper(mTransaction, request, this, keyRange);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
request.forget(_retval);
return NS_OK;
}
inline nsresult
CopyData(nsIInputStream* aStream, quota_FILE* aFile)
{
do {
char copyBuffer[FILE_COPY_BUFFER_SIZE];
PRUint32 numRead;
nsresult rv = aStream->Read(copyBuffer, FILE_COPY_BUFFER_SIZE, &numRead);
NS_ENSURE_SUCCESS(rv, rv);
if (numRead <= 0) {
break;
}
size_t numWrite = sqlite3_quota_fwrite(copyBuffer, 1, numRead, aFile);
NS_ENSURE_TRUE(numWrite == numRead, NS_ERROR_FAILURE);
} while (true);
// Flush and sync
NS_ENSURE_TRUE(sqlite3_quota_fflush(aFile, 1) == 0,
NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return NS_OK;
}
nsresult
AddHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(aConnection, "Passed a null connection!");
nsresult rv;
bool keyUnset = mKey.IsUnset();
PRInt64 osid = mObjectStore->Id();
const nsString& keyPath = mObjectStore->KeyPath();
// The "|| keyUnset" here is mostly a debugging tool. If a key isn't
// specified we should never have a collision and so it shouldn't matter
// if we allow overwrite or not. By not allowing overwrite we raise
// detectable errors rather than corrupting data
nsCOMPtr<mozIStorageStatement> stmt = !mOverwrite || keyUnset ?
mTransaction->GetCachedStatement(
"INSERT INTO object_data (object_store_id, key_value, data, file_ids) "
"VALUES (:osid, :key_value, :data, :file_ids)") :
mTransaction->GetCachedStatement(
"INSERT OR REPLACE INTO object_data (object_store_id, key_value, data, file_ids) "
"VALUES (:osid, :key_value, :data, :file_ids)");
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), osid);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
NS_ASSERTION(!keyUnset || mObjectStore->IsAutoIncrement(),
"Should have key unless autoincrement");
PRInt64 autoIncrementNum = 0;
if (mObjectStore->IsAutoIncrement()) {
if (keyUnset) {
autoIncrementNum = mObjectStore->Info()->nextAutoIncrementId;
if (autoIncrementNum > (1LL << 53)) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
mKey.SetFromInteger(autoIncrementNum);
}
else if (mKey.IsFloat() &&
mKey.ToFloat() >= mObjectStore->Info()->nextAutoIncrementId) {
autoIncrementNum = floor(mKey.ToFloat());
}
if (keyUnset && !keyPath.IsEmpty()) {
// Special case where someone put an object into an autoIncrement'ing
// objectStore with no key in its keyPath set. We needed to figure out
// which row id we would get above before we could set that properly.
// This is a duplicate of the js engine's byte munging here
union {
double d;
PRUint64 u;
} pun;
pun.d = SwapBytes(static_cast<PRUint64>(autoIncrementNum));
JSAutoStructuredCloneBuffer& buffer = mCloneWriteInfo.mCloneBuffer;
PRUint64 offsetToKeyProp = mCloneWriteInfo.mOffsetToKeyProp;
memcpy((char*)buffer.data() + offsetToKeyProp, &pun.u, sizeof(PRUint64));
}
}
mKey.BindToStatement(stmt, NS_LITERAL_CSTRING("key_value"));
// Compress the bytes before adding into the database.
const char* uncompressed =
reinterpret_cast<const char*>(mCloneWriteInfo.mCloneBuffer.data());
size_t uncompressedLength = mCloneWriteInfo.mCloneBuffer.nbytes();
size_t compressedLength = snappy::MaxCompressedLength(uncompressedLength);
// This will hold our compressed data until the end of the method. The
// BindBlobByName function will copy it.
nsAutoArrayPtr<char> compressed(new char[compressedLength]);
snappy::RawCompress(uncompressed, uncompressedLength, compressed.get(),
&compressedLength);
const PRUint8* dataBuffer = reinterpret_cast<const PRUint8*>(compressed.get());
size_t dataBufferLength = compressedLength;
rv = stmt->BindBlobByName(NS_LITERAL_CSTRING("data"), dataBuffer,
dataBufferLength);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
// Handle blobs
nsRefPtr<FileManager> fileManager = mDatabase->Manager();
nsCOMPtr<nsIFile> directory = fileManager->GetDirectory();
NS_ENSURE_TRUE(directory, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsAutoString fileIds;
for (PRUint32 index = 0; index < mCloneWriteInfo.mBlobs.Length(); index++) {
nsCOMPtr<nsIDOMBlob>& domBlob = mCloneWriteInfo.mBlobs[index];
PRInt64 id = -1;
// Check if it is a blob created from this db or the blob was already
// stored in this db
nsRefPtr<FileInfo> fileInfo = domBlob->GetFileInfo(fileManager);
if (fileInfo) {
id = fileInfo->Id();
}
if (id == -1) {
fileInfo = fileManager->GetNewFileInfo();
NS_ENSURE_TRUE(fileInfo, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
id = fileInfo->Id();
mTransaction->OnNewFileInfo(fileInfo);
// Copy it
nsCOMPtr<nsIInputStream> inputStream;
rv = domBlob->GetInternalStream(getter_AddRefs(inputStream));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsCOMPtr<nsIFile> nativeFile = fileManager->GetFileForId(directory, id);
NS_ENSURE_TRUE(nativeFile, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsString nativeFilePath;
rv = nativeFile->GetPath(nativeFilePath);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
quota_FILE* file =
sqlite3_quota_fopen(NS_ConvertUTF16toUTF8(nativeFilePath).get(), "wb");
NS_ENSURE_TRUE(file, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = CopyData(inputStream, file);
NS_ENSURE_TRUE(sqlite3_quota_fclose(file) == 0,
NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
domBlob->AddFileInfo(fileInfo);
}
if (index) {
fileIds.Append(NS_LITERAL_STRING(" "));
}
fileIds.AppendInt(id);
}
if (fileIds.IsEmpty()) {
rv = stmt->BindNullByName(NS_LITERAL_CSTRING("file_ids"));
}
else {
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("file_ids"), fileIds);
}
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->Execute();
if (rv == NS_ERROR_STORAGE_CONSTRAINT) {
NS_ASSERTION(!keyUnset, "Generated key had a collision!?");
return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
}
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
PRInt64 objectDataId;
rv = aConnection->GetLastInsertRowID(&objectDataId);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
// Update our indexes if needed.
if (mOverwrite || !mIndexUpdateInfo.IsEmpty()) {
rv = IDBObjectStore::UpdateIndexes(mTransaction, osid, mKey, mOverwrite,
objectDataId, mIndexUpdateInfo);
if (rv == NS_ERROR_STORAGE_CONSTRAINT) {
return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
}
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
if (autoIncrementNum) {
mObjectStore->Info()->nextAutoIncrementId = autoIncrementNum + 1;
}
return NS_OK;
}
nsresult
AddHelper::GetSuccessResult(JSContext* aCx,
jsval* aVal)
{
NS_ASSERTION(!mKey.IsUnset(), "Badness!");
mCloneWriteInfo.mCloneBuffer.clear();
return mKey.ToJSVal(aCx, aVal);
}
nsresult
GetHelper::DoDatabaseWork(mozIStorageConnection* /* aConnection */)
{
NS_ASSERTION(mKeyRange, "Must have a key range here!");
nsCString keyRangeClause;
mKeyRange->GetBindingClause(NS_LITERAL_CSTRING("key_value"), keyRangeClause);
NS_ASSERTION(!keyRangeClause.IsEmpty(), "Huh?!");
nsCString query = NS_LITERAL_CSTRING("SELECT data, file_ids FROM object_data "
"WHERE object_store_id = :osid") +
keyRangeClause + NS_LITERAL_CSTRING(" LIMIT 1");
nsCOMPtr<mozIStorageStatement> stmt = mTransaction->GetCachedStatement(query);
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = mKeyRange->BindToStatement(stmt);
NS_ENSURE_SUCCESS(rv, rv);
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (hasResult) {
rv = IDBObjectStore::GetStructuredCloneReadInfoFromStatement(stmt, 0, 1,
mDatabase->Manager(), mCloneReadInfo);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsresult
GetHelper::GetSuccessResult(JSContext* aCx,
jsval* aVal)
{
bool result = IDBObjectStore::DeserializeValue(aCx, mCloneReadInfo, aVal);
mCloneReadInfo.mCloneBuffer.clear();
NS_ENSURE_TRUE(result, NS_ERROR_FAILURE);
return NS_OK;
}
nsresult
DeleteHelper::DoDatabaseWork(mozIStorageConnection* /*aConnection */)
{
NS_ASSERTION(mKeyRange, "Must have a key range here!");
nsCString keyRangeClause;
mKeyRange->GetBindingClause(NS_LITERAL_CSTRING("key_value"), keyRangeClause);
NS_ASSERTION(!keyRangeClause.IsEmpty(), "Huh?!");
nsCString query = NS_LITERAL_CSTRING("DELETE FROM object_data "
"WHERE object_store_id = :osid") +
keyRangeClause;
nsCOMPtr<mozIStorageStatement> stmt = mTransaction->GetCachedStatement(query);
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = mKeyRange->BindToStatement(stmt);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return NS_OK;
}
nsresult
DeleteHelper::GetSuccessResult(JSContext* aCx,
jsval* aVal)
{
*aVal = JSVAL_VOID;
return NS_OK;
}
nsresult
ClearHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(aConnection, "Passed a null connection!");
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetCachedStatement(
NS_LITERAL_CSTRING("DELETE FROM object_data "
"WHERE object_store_id = :osid"));
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return NS_OK;
}
nsresult
OpenCursorHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_NAMED_LITERAL_CSTRING(keyValue, "key_value");
nsCString keyRangeClause;
if (mKeyRange) {
mKeyRange->GetBindingClause(keyValue, keyRangeClause);
}
nsCAutoString directionClause;
switch (mDirection) {
case nsIIDBCursor::NEXT:
case nsIIDBCursor::NEXT_NO_DUPLICATE:
directionClause.AssignLiteral(" ORDER BY key_value ASC");
break;
case nsIIDBCursor::PREV:
case nsIIDBCursor::PREV_NO_DUPLICATE:
directionClause.AssignLiteral(" ORDER BY key_value DESC");
break;
default:
NS_NOTREACHED("Unknown direction type!");
}
nsCString firstQuery = NS_LITERAL_CSTRING("SELECT key_value, data, file_ids "
"FROM object_data "
"WHERE object_store_id = :id") +
keyRangeClause + directionClause +
NS_LITERAL_CSTRING(" LIMIT 1");
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetCachedStatement(firstQuery);
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"),
mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (mKeyRange) {
rv = mKeyRange->BindToStatement(stmt);
NS_ENSURE_SUCCESS(rv, rv);
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (!hasResult) {
mKey.Unset();
return NS_OK;
}
rv = mKey.SetFromStatement(stmt, 0);
NS_ENSURE_SUCCESS(rv, rv);
rv = IDBObjectStore::GetStructuredCloneReadInfoFromStatement(stmt, 1, 2,
mDatabase->Manager(), mCloneReadInfo);
NS_ENSURE_SUCCESS(rv, rv);
// Now we need to make the query to get the next match.
keyRangeClause.Truncate();
nsCAutoString continueToKeyRangeClause;
NS_NAMED_LITERAL_CSTRING(currentKey, "current_key");
NS_NAMED_LITERAL_CSTRING(rangeKey, "range_key");
switch (mDirection) {
case nsIIDBCursor::NEXT:
case nsIIDBCursor::NEXT_NO_DUPLICATE:
AppendConditionClause(keyValue, currentKey, false, false,
keyRangeClause);
AppendConditionClause(keyValue, currentKey, false, true,
continueToKeyRangeClause);
if (mKeyRange && !mKeyRange->Upper().IsUnset()) {
AppendConditionClause(keyValue, rangeKey, true,
!mKeyRange->IsUpperOpen(), keyRangeClause);
AppendConditionClause(keyValue, rangeKey, true,
!mKeyRange->IsUpperOpen(),
continueToKeyRangeClause);
mRangeKey = mKeyRange->Upper();
}
break;
case nsIIDBCursor::PREV:
case nsIIDBCursor::PREV_NO_DUPLICATE:
AppendConditionClause(keyValue, currentKey, true, false, keyRangeClause);
AppendConditionClause(keyValue, currentKey, true, true,
continueToKeyRangeClause);
if (mKeyRange && !mKeyRange->Lower().IsUnset()) {
AppendConditionClause(keyValue, rangeKey, false,
!mKeyRange->IsLowerOpen(), keyRangeClause);
AppendConditionClause(keyValue, rangeKey, false,
!mKeyRange->IsLowerOpen(),
continueToKeyRangeClause);
mRangeKey = mKeyRange->Lower();
}
break;
default:
NS_NOTREACHED("Unknown direction type!");
}
NS_NAMED_LITERAL_CSTRING(queryStart, "SELECT key_value, data, file_ids "
"FROM object_data "
"WHERE object_store_id = :id");
mContinueQuery = queryStart + keyRangeClause + directionClause +
NS_LITERAL_CSTRING(" LIMIT ");
mContinueToQuery = queryStart + continueToKeyRangeClause + directionClause +
NS_LITERAL_CSTRING(" LIMIT ");
return NS_OK;
}
nsresult
OpenCursorHelper::GetSuccessResult(JSContext* aCx,
jsval* aVal)
{
if (mKey.IsUnset()) {
*aVal = JSVAL_VOID;
return NS_OK;
}
nsRefPtr<IDBCursor> cursor =
IDBCursor::Create(mRequest, mTransaction, mObjectStore, mDirection,
mRangeKey, mContinueQuery, mContinueToQuery, mKey,
mCloneReadInfo);
NS_ENSURE_TRUE(cursor, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
NS_ASSERTION(!mCloneReadInfo.mCloneBuffer.data(), "Should have swapped!");
return WrapNative(aCx, cursor, aVal);
}
class ThreadLocalJSRuntime
{
JSRuntime* mRuntime;
JSContext* mContext;
JSObject* mGlobal;
static JSClass sGlobalClass;
static const unsigned sRuntimeHeapSize = 256 * 1024; // should be enough for anyone
ThreadLocalJSRuntime()
: mRuntime(NULL), mContext(NULL), mGlobal(NULL)
{
MOZ_COUNT_CTOR(ThreadLocalJSRuntime);
}
nsresult Init()
{
mRuntime = JS_NewRuntime(sRuntimeHeapSize);
NS_ENSURE_TRUE(mRuntime, NS_ERROR_OUT_OF_MEMORY);
mContext = JS_NewContext(mRuntime, 0);
NS_ENSURE_TRUE(mContext, NS_ERROR_OUT_OF_MEMORY);
JSAutoRequest ar(mContext);
mGlobal = JS_NewCompartmentAndGlobalObject(mContext, &sGlobalClass, NULL);
NS_ENSURE_TRUE(mGlobal, NS_ERROR_OUT_OF_MEMORY);
JS_SetGlobalObject(mContext, mGlobal);
return NS_OK;
}
public:
static ThreadLocalJSRuntime *Create()
{
ThreadLocalJSRuntime *entry = new ThreadLocalJSRuntime();
NS_ENSURE_TRUE(entry, nsnull);
if (NS_FAILED(entry->Init())) {
delete entry;
return nsnull;
}
return entry;
}
JSContext *Context() const
{
return mContext;
}
~ThreadLocalJSRuntime()
{
MOZ_COUNT_DTOR(ThreadLocalJSRuntime);
if (mContext) {
JS_DestroyContext(mContext);
}
if (mRuntime) {
JS_DestroyRuntime(mRuntime);
}
}
};
JSClass ThreadLocalJSRuntime::sGlobalClass = {
"IndexedDBTransactionThreadGlobal",
JSCLASS_GLOBAL_FLAGS,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub
};
CreateIndexHelper::CreateIndexHelper(IDBTransaction* aTransaction,
IDBIndex* aIndex)
: AsyncConnectionHelper(aTransaction, nsnull), mIndex(aIndex)
{
if (sTLSIndex == BAD_TLS_INDEX) {
PR_NewThreadPrivateIndex(&sTLSIndex, DestroyTLSEntry);
}
}
void
CreateIndexHelper::DestroyTLSEntry(void* aPtr)
{
delete reinterpret_cast<ThreadLocalJSRuntime *>(aPtr);
}
nsresult
CreateIndexHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
// Insert the data into the database.
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetCachedStatement(
"INSERT INTO object_store_index (id, name, key_path, unique_index, "
"multientry, object_store_id) "
"VALUES (:id, :name, :key_path, :unique, :multientry, :osid)"
);
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("id"),
mIndex->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mIndex->Name());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (mIndex->UsesKeyPathArray()) {
// We use a comma in the beginning to indicate that it's an array of
// key paths. This is to be able to tell a string-keypath from an
// array-keypath which contains only one item.
// It also makes serializing easier :-)
nsAutoString keyPath;
const nsTArray<nsString>& keyPaths = mIndex->KeyPathArray();
for (PRUint32 i = 0; i < keyPaths.Length(); ++i) {
keyPath.Append(NS_LITERAL_STRING(",") + keyPaths[i]);
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("key_path"),
keyPath);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
else {
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("key_path"),
mIndex->KeyPath());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("unique"),
mIndex->IsUnique() ? 1 : 0);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("multientry"),
mIndex->IsMultiEntry() ? 1 : 0);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mIndex->ObjectStore()->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (NS_FAILED(stmt->Execute())) {
return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
}
#ifdef DEBUG
{
PRInt64 id;
aConnection->GetLastInsertRowID(&id);
NS_ASSERTION(mIndex->Id() == id, "Bad index id!");
}
#endif
// Now we need to populate the index with data from the object store.
rv = InsertDataFromObjectStore(aConnection);
if (NS_FAILED(rv)) {
return rv;
}
return NS_OK;
}
nsresult
CreateIndexHelper::InsertDataFromObjectStore(mozIStorageConnection* aConnection)
{
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetCachedStatement(
NS_LITERAL_CSTRING("SELECT id, data, file_ids, key_value FROM object_data "
"WHERE object_store_id = :osid"));
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mIndex->ObjectStore()->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
NS_ENSURE_TRUE(sTLSIndex != BAD_TLS_INDEX, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (!hasResult) {
// Bail early if we have no data to avoid creating the below runtime
return NS_OK;
}
ThreadLocalJSRuntime* tlsEntry =
reinterpret_cast<ThreadLocalJSRuntime*>(PR_GetThreadPrivate(sTLSIndex));
if (!tlsEntry) {
tlsEntry = ThreadLocalJSRuntime::Create();
NS_ENSURE_TRUE(tlsEntry, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
PR_SetThreadPrivate(sTLSIndex, tlsEntry);
}
JSContext* cx = tlsEntry->Context();
JSAutoRequest ar(cx);
do {
StructuredCloneReadInfo cloneReadInfo;
rv = IDBObjectStore::GetStructuredCloneReadInfoFromStatement(stmt, 1, 2,
mDatabase->Manager(), cloneReadInfo);
NS_ENSURE_SUCCESS(rv, rv);
JSAutoStructuredCloneBuffer& buffer = cloneReadInfo.mCloneBuffer;
JSStructuredCloneCallbacks callbacks = {
IDBObjectStore::StructuredCloneReadCallback,
nsnull,
nsnull
};
jsval clone;
if (!buffer.read(cx, &clone, &callbacks, &cloneReadInfo)) {
NS_WARNING("Failed to deserialize structured clone data!");
return NS_ERROR_DOM_DATA_CLONE_ERR;
}
nsTArray<IndexUpdateInfo> updateInfo;
rv = IDBObjectStore::AppendIndexUpdateInfo(mIndex->Id(),
mIndex->KeyPath(),
mIndex->KeyPathArray(),
mIndex->IsUnique(),
mIndex->IsMultiEntry(),
tlsEntry->Context(),
clone, updateInfo);
NS_ENSURE_SUCCESS(rv, rv);
PRInt64 objectDataID = stmt->AsInt64(0);
Key key;
rv = key.SetFromStatement(stmt, 3);
NS_ENSURE_SUCCESS(rv, rv);
rv = IDBObjectStore::UpdateIndexes(mTransaction, mIndex->Id(),
key, false, objectDataID, updateInfo);
NS_ENSURE_SUCCESS(rv, rv);
} while (NS_SUCCEEDED(rv = stmt->ExecuteStep(&hasResult)) && hasResult);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return NS_OK;
}
nsresult
DeleteIndexHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(!NS_IsMainThread(), "Wrong thread!");
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetCachedStatement(
"DELETE FROM object_store_index "
"WHERE name = :name "
);
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mName);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (NS_FAILED(stmt->Execute())) {
return NS_ERROR_DOM_INDEXEDDB_NOT_FOUND_ERR;
}
return NS_OK;
}
nsresult
GetAllHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_NAMED_LITERAL_CSTRING(lowerKeyName, "lower_key");
NS_NAMED_LITERAL_CSTRING(upperKeyName, "upper_key");
nsCAutoString keyRangeClause;
if (mKeyRange) {
if (!mKeyRange->Lower().IsUnset()) {
keyRangeClause = NS_LITERAL_CSTRING(" AND key_value");
if (mKeyRange->IsLowerOpen()) {
keyRangeClause.AppendLiteral(" > :");
}
else {
keyRangeClause.AppendLiteral(" >= :");
}
keyRangeClause.Append(lowerKeyName);
}
if (!mKeyRange->Upper().IsUnset()) {
keyRangeClause += NS_LITERAL_CSTRING(" AND key_value");
if (mKeyRange->IsUpperOpen()) {
keyRangeClause.AppendLiteral(" < :");
}
else {
keyRangeClause.AppendLiteral(" <= :");
}
keyRangeClause.Append(upperKeyName);
}
}
nsCAutoString limitClause;
if (mLimit != PR_UINT32_MAX) {
limitClause.AssignLiteral(" LIMIT ");
limitClause.AppendInt(mLimit);
}
nsCString query = NS_LITERAL_CSTRING("SELECT data, file_ids FROM object_data "
"WHERE object_store_id = :osid") +
keyRangeClause +
NS_LITERAL_CSTRING(" ORDER BY key_value ASC") +
limitClause;
mCloneReadInfos.SetCapacity(50);
nsCOMPtr<mozIStorageStatement> stmt = mTransaction->GetCachedStatement(query);
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (mKeyRange) {
if (!mKeyRange->Lower().IsUnset()) {
rv = mKeyRange->Lower().BindToStatement(stmt, lowerKeyName);
NS_ENSURE_SUCCESS(rv, rv);
}
if (!mKeyRange->Upper().IsUnset()) {
rv = mKeyRange->Upper().BindToStatement(stmt, upperKeyName);
NS_ENSURE_SUCCESS(rv, rv);
}
}
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
if (mCloneReadInfos.Capacity() == mCloneReadInfos.Length()) {
if (!mCloneReadInfos.SetCapacity(mCloneReadInfos.Capacity() * 2)) {
NS_ERROR("Out of memory!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
}
StructuredCloneReadInfo* readInfo = mCloneReadInfos.AppendElement();
NS_ASSERTION(readInfo, "Shouldn't fail if SetCapacity succeeded!");
rv = IDBObjectStore::GetStructuredCloneReadInfoFromStatement(stmt, 0, 1,
mDatabase->Manager(), *readInfo);
NS_ENSURE_SUCCESS(rv, rv);
}
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
return NS_OK;
}
nsresult
GetAllHelper::GetSuccessResult(JSContext* aCx,
jsval* aVal)
{
NS_ASSERTION(mCloneReadInfos.Length() <= mLimit, "Too many results!");
nsresult rv = ConvertCloneReadInfosToArray(aCx, mCloneReadInfos, aVal);
for (PRUint32 index = 0; index < mCloneReadInfos.Length(); index++) {
mCloneReadInfos[index].mCloneBuffer.clear();
}
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
CountHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_NAMED_LITERAL_CSTRING(lowerKeyName, "lower_key");
NS_NAMED_LITERAL_CSTRING(upperKeyName, "upper_key");
nsCAutoString keyRangeClause;
if (mKeyRange) {
if (!mKeyRange->Lower().IsUnset()) {
keyRangeClause = NS_LITERAL_CSTRING(" AND key_value");
if (mKeyRange->IsLowerOpen()) {
keyRangeClause.AppendLiteral(" > :");
}
else {
keyRangeClause.AppendLiteral(" >= :");
}
keyRangeClause.Append(lowerKeyName);
}
if (!mKeyRange->Upper().IsUnset()) {
keyRangeClause += NS_LITERAL_CSTRING(" AND key_value");
if (mKeyRange->IsUpperOpen()) {
keyRangeClause.AppendLiteral(" < :");
}
else {
keyRangeClause.AppendLiteral(" <= :");
}
keyRangeClause.Append(upperKeyName);
}
}
nsCString query = NS_LITERAL_CSTRING("SELECT count(*) FROM object_data "
"WHERE object_store_id = :osid") +
keyRangeClause;
nsCOMPtr<mozIStorageStatement> stmt = mTransaction->GetCachedStatement(query);
NS_ENSURE_TRUE(stmt, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (mKeyRange) {
if (!mKeyRange->Lower().IsUnset()) {
rv = mKeyRange->Lower().BindToStatement(stmt, lowerKeyName);
NS_ENSURE_SUCCESS(rv, rv);
}
if (!mKeyRange->Upper().IsUnset()) {
rv = mKeyRange->Upper().BindToStatement(stmt, upperKeyName);
NS_ENSURE_SUCCESS(rv, rv);
}
}
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
NS_ENSURE_TRUE(hasResult, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mCount = stmt->AsInt64(0);
return NS_OK;
}
nsresult
CountHelper::GetSuccessResult(JSContext* aCx,
jsval* aVal)
{
return JS_NewNumberValue(aCx, static_cast<double>(mCount), aVal);
}
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