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gecko/dom/indexedDB/OpenDatabaseHelper.cpp
Andrea Marchesini 507b5977c9 Bug 888596 - Move IDBDatabase to WebIDL, r=janv
2013-07-31 17:48:46 +02:00

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/* 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/DebugOnly.h"
#include "OpenDatabaseHelper.h"
#include "nsIBFCacheEntry.h"
#include "nsIFile.h"
#include <algorithm>
#include "mozilla/dom/quota/AcquireListener.h"
#include "mozilla/dom/quota/OriginOrPatternString.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "mozilla/storage.h"
#include "nsEscape.h"
#include "nsNetUtil.h"
#include "nsThreadUtils.h"
#include "snappy/snappy.h"
#include "Client.h"
#include "IDBEvents.h"
#include "IDBFactory.h"
#include "IndexedDatabaseManager.h"
#include "ProfilerHelpers.h"
using namespace mozilla;
using namespace mozilla::dom;
USING_INDEXEDDB_NAMESPACE
USING_QUOTA_NAMESPACE
namespace {
// If JS_STRUCTURED_CLONE_VERSION changes then we need to update our major
// schema version.
static_assert(JS_STRUCTURED_CLONE_VERSION == 2,
"Need to update the major schema version.");
// Major schema version. Bump for almost everything.
const uint32_t kMajorSchemaVersion = 14;
// Minor schema version. Should almost always be 0 (maybe bump on release
// branches if we have to).
const uint32_t kMinorSchemaVersion = 0;
// The schema version we store in the SQLite database is a (signed) 32-bit
// integer. The major version is left-shifted 4 bits so the max value is
// 0xFFFFFFF. The minor version occupies the lower 4 bits and its max is 0xF.
static_assert(kMajorSchemaVersion <= 0xFFFFFFF,
"Major version needs to fit in 28 bits.");
static_assert(kMinorSchemaVersion <= 0xF,
"Minor version needs to fit in 4 bits.");
inline
int32_t
MakeSchemaVersion(uint32_t aMajorSchemaVersion,
uint32_t aMinorSchemaVersion)
{
return int32_t((aMajorSchemaVersion << 4) + aMinorSchemaVersion);
}
const int32_t kSQLiteSchemaVersion = int32_t((kMajorSchemaVersion << 4) +
kMinorSchemaVersion);
nsresult
GetDatabaseFilename(const nsAString& aName,
nsAString& aDatabaseFilename)
{
aDatabaseFilename.AppendInt(HashString(aName));
nsCString escapedName;
if (!NS_Escape(NS_ConvertUTF16toUTF8(aName), escapedName, url_XPAlphas)) {
NS_WARNING("Can't escape database name!");
return NS_ERROR_UNEXPECTED;
}
const char* forwardIter = escapedName.BeginReading();
const char* backwardIter = escapedName.EndReading() - 1;
nsCString substring;
while (forwardIter <= backwardIter && substring.Length() < 21) {
if (substring.Length() % 2) {
substring.Append(*backwardIter--);
}
else {
substring.Append(*forwardIter++);
}
}
aDatabaseFilename.Append(NS_ConvertASCIItoUTF16(substring));
return NS_OK;
}
nsresult
CreateFileTables(mozIStorageConnection* aDBConn)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "CreateFileTables");
// Table `file`
nsresult rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE file ("
"id INTEGER PRIMARY KEY, "
"refcount INTEGER NOT NULL"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_insert_trigger "
"AFTER INSERT ON object_data "
"FOR EACH ROW "
"WHEN NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(NULL, NEW.file_ids); "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_update_trigger "
"AFTER UPDATE OF file_ids ON object_data "
"FOR EACH ROW "
"WHEN OLD.file_ids IS NOT NULL OR NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NEW.file_ids); "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_delete_trigger "
"AFTER DELETE ON object_data "
"FOR EACH ROW WHEN OLD.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NULL); "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER file_update_trigger "
"AFTER UPDATE ON file "
"FOR EACH ROW WHEN NEW.refcount = 0 "
"BEGIN "
"DELETE FROM file WHERE id = OLD.id; "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
CreateTables(mozIStorageConnection* aDBConn)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
NS_ASSERTION(aDBConn, "Passing a null database connection!");
PROFILER_LABEL("IndexedDB", "CreateTables");
// Table `database`
nsresult rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE database ("
"name TEXT NOT NULL, "
"version INTEGER NOT NULL DEFAULT 0"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
// Table `object_store`
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_store ("
"id INTEGER PRIMARY KEY, "
"auto_increment INTEGER NOT NULL DEFAULT 0, "
"name TEXT NOT NULL, "
"key_path TEXT, "
"UNIQUE (name)"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
// Table `object_data`
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_data ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"key_value BLOB DEFAULT NULL, "
"file_ids TEXT, "
"data BLOB NOT NULL, "
"UNIQUE (object_store_id, key_value), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
// Table `index`
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_store_index ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"name TEXT NOT NULL, "
"key_path TEXT NOT NULL, "
"unique_index INTEGER NOT NULL, "
"multientry INTEGER NOT NULL, "
"UNIQUE (object_store_id, name), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
// Table `index_data`
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE index_data ("
"index_id INTEGER NOT NULL, "
"value BLOB NOT NULL, "
"object_data_key BLOB NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
// Need this to make cascading deletes from object_data and object_store fast.
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX index_data_object_data_id_index "
"ON index_data (object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
// Table `unique_index_data`
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE unique_index_data ("
"index_id INTEGER NOT NULL, "
"value BLOB NOT NULL, "
"object_data_key BLOB NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"UNIQUE (index_id, value), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
// Need this to make cascading deletes from object_data and object_store fast.
rv = aDBConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX unique_index_data_object_data_id_index "
"ON unique_index_data (object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = CreateFileTables(aDBConn);
NS_ENSURE_SUCCESS(rv, rv);
rv = aDBConn->SetSchemaVersion(kSQLiteSchemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom4To5(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom4To5");
nsresult rv;
// All we changed is the type of the version column, so lets try to
// convert that to an integer, and if we fail, set it to 0.
nsCOMPtr<mozIStorageStatement> stmt;
rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"SELECT name, version, dataVersion "
"FROM database"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
nsString name;
int32_t intVersion;
int64_t dataVersion;
{
mozStorageStatementScoper scoper(stmt);
bool hasResults;
rv = stmt->ExecuteStep(&hasResults);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(hasResults, NS_ERROR_FAILURE);
nsString version;
rv = stmt->GetString(1, version);
NS_ENSURE_SUCCESS(rv, rv);
intVersion = version.ToInteger(&rv);
if (NS_FAILED(rv)) {
intVersion = 0;
}
rv = stmt->GetString(0, name);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->GetInt64(2, &dataVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE database"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE database ("
"name TEXT NOT NULL, "
"version INTEGER NOT NULL DEFAULT 0, "
"dataVersion INTEGER NOT NULL"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO database (name, version, dataVersion) "
"VALUES (:name, :version, :dataVersion)"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
{
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindStringParameter(0, name);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt32Parameter(1, intVersion);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64Parameter(2, dataVersion);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
}
rv = aConnection->SetSchemaVersion(5);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom5To6(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom5To6");
// First, drop all the indexes we're no longer going to use.
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP INDEX key_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP INDEX ai_key_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP INDEX value_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP INDEX ai_value_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
// Now, reorder the columns of object_data to put the blob data last. We do
// this by copying into a temporary table, dropping the original, then copying
// back into a newly created table.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"id INTEGER PRIMARY KEY, "
"object_store_id, "
"key_value, "
"data "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT id, object_store_id, key_value, data "
"FROM object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_data ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"key_value DEFAULT NULL, "
"data BLOB NOT NULL, "
"UNIQUE (object_store_id, key_value), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_data "
"SELECT id, object_store_id, key_value, data "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
// We need to add a unique constraint to our ai_object_data table. Copy all
// the data out of it using a temporary table as before.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"id INTEGER PRIMARY KEY, "
"object_store_id, "
"data "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT id, object_store_id, data "
"FROM ai_object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE ai_object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE ai_object_data ("
"id INTEGER PRIMARY KEY AUTOINCREMENT, "
"object_store_id INTEGER NOT NULL, "
"data BLOB NOT NULL, "
"UNIQUE (object_store_id, id), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO ai_object_data "
"SELECT id, object_store_id, data "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
// Fix up the index_data table. We're reordering the columns as well as
// changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"object_data_key NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT OR IGNORE INTO index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX index_data_object_data_id_index "
"ON index_data (object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
// Fix up the unique_index_data table. We're reordering the columns as well as
// changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM unique_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE unique_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE unique_index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"object_data_key NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"UNIQUE (index_id, value), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO unique_index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX unique_index_data_object_data_id_index "
"ON unique_index_data (object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
// Fix up the ai_index_data table. We're reordering the columns as well as
// changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"ai_object_data_id "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, value, ai_object_data_id "
"FROM ai_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE ai_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE ai_index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"ai_object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, ai_object_data_id), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (ai_object_data_id) REFERENCES ai_object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT OR IGNORE INTO ai_index_data "
"SELECT index_id, value, ai_object_data_id "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX ai_index_data_ai_object_data_id_index "
"ON ai_index_data (ai_object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
// Fix up the ai_unique_index_data table. We're reordering the columns as well
// as changing the primary key from being a simple id to being a composite.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"ai_object_data_id "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, value, ai_object_data_id "
"FROM ai_unique_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE ai_unique_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE ai_unique_index_data ("
"index_id INTEGER NOT NULL, "
"value NOT NULL, "
"ai_object_data_id INTEGER NOT NULL, "
"UNIQUE (index_id, value), "
"PRIMARY KEY (index_id, value, ai_object_data_id), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (ai_object_data_id) REFERENCES ai_object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO ai_unique_index_data "
"SELECT index_id, value, ai_object_data_id "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX ai_unique_index_data_ai_object_data_id_index "
"ON ai_unique_index_data (ai_object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->SetSchemaVersion(6);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom6To7(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom6To7");
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"id, "
"name, "
"key_path, "
"auto_increment"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT id, name, key_path, auto_increment "
"FROM object_store;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE object_store;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_store ("
"id INTEGER PRIMARY KEY, "
"auto_increment INTEGER NOT NULL DEFAULT 0, "
"name TEXT NOT NULL, "
"key_path TEXT, "
"UNIQUE (name)"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_store "
"SELECT id, auto_increment, name, nullif(key_path, '') "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->SetSchemaVersion(7);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom7To8(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom7To8");
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"id, "
"object_store_id, "
"name, "
"key_path, "
"unique_index, "
"object_store_autoincrement"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT id, object_store_id, name, key_path, "
"unique_index, object_store_autoincrement "
"FROM object_store_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE object_store_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_store_index ("
"id INTEGER, "
"object_store_id INTEGER NOT NULL, "
"name TEXT NOT NULL, "
"key_path TEXT NOT NULL, "
"unique_index INTEGER NOT NULL, "
"multientry INTEGER NOT NULL, "
"object_store_autoincrement INTERGER NOT NULL, "
"PRIMARY KEY (id), "
"UNIQUE (object_store_id, name), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_store_index "
"SELECT id, object_store_id, name, key_path, "
"unique_index, 0, object_store_autoincrement "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->SetSchemaVersion(8);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
class CompressDataBlobsFunction MOZ_FINAL : public mozIStorageFunction
{
public:
NS_DECL_ISUPPORTS
NS_IMETHOD
OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult)
{
PROFILER_LABEL("IndexedDB", "CompressDataBlobsFunction::OnFunctionCall");
uint32_t argc;
nsresult rv = aArguments->GetNumEntries(&argc);
NS_ENSURE_SUCCESS(rv, rv);
if (argc != 1) {
NS_WARNING("Don't call me with the wrong number of arguments!");
return NS_ERROR_UNEXPECTED;
}
int32_t type;
rv = aArguments->GetTypeOfIndex(0, &type);
NS_ENSURE_SUCCESS(rv, rv);
if (type != mozIStorageStatement::VALUE_TYPE_BLOB) {
NS_WARNING("Don't call me with the wrong type of arguments!");
return NS_ERROR_UNEXPECTED;
}
const uint8_t* uncompressed;
uint32_t uncompressedLength;
rv = aArguments->GetSharedBlob(0, &uncompressedLength, &uncompressed);
NS_ENSURE_SUCCESS(rv, rv);
size_t compressedLength = snappy::MaxCompressedLength(uncompressedLength);
nsAutoArrayPtr<char> compressed(new char[compressedLength]);
snappy::RawCompress(reinterpret_cast<const char*>(uncompressed),
uncompressedLength, compressed.get(),
&compressedLength);
std::pair<const void *, int> data(static_cast<void*>(compressed.get()),
int(compressedLength));
// XXX This copies the buffer again... There doesn't appear to be any way to
// preallocate space and write directly to a BlobVariant at the moment.
nsCOMPtr<nsIVariant> result = new mozilla::storage::BlobVariant(data);
result.forget(aResult);
return NS_OK;
}
};
NS_IMPL_ISUPPORTS1(CompressDataBlobsFunction, mozIStorageFunction)
nsresult
UpgradeSchemaFrom8To9_0(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom8To9_0");
// We no longer use the dataVersion column.
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE database SET dataVersion = 0;"
));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStorageFunction> compressor = new CompressDataBlobsFunction();
NS_NAMED_LITERAL_CSTRING(compressorName, "compress");
rv = aConnection->CreateFunction(compressorName, 1, compressor);
NS_ENSURE_SUCCESS(rv, rv);
// Turn off foreign key constraints before we do anything here.
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE object_data SET data = compress(data);"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE ai_object_data SET data = compress(data);"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->RemoveFunction(compressorName);
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(9, 0));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom9_0To10_0(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom9_0To10_0");
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE object_data ADD COLUMN file_ids TEXT;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE ai_object_data ADD COLUMN file_ids TEXT;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = CreateFileTables(aConnection);
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(10, 0));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom10_0To11_0(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom10_0To11_0");
nsresult rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"id, "
"object_store_id, "
"name, "
"key_path, "
"unique_index, "
"multientry"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT id, object_store_id, name, key_path, "
"unique_index, multientry "
"FROM object_store_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE object_store_index;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_store_index ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"name TEXT NOT NULL, "
"key_path TEXT NOT NULL, "
"unique_index INTEGER NOT NULL, "
"multientry INTEGER NOT NULL, "
"UNIQUE (object_store_id, name), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_store_index "
"SELECT id, object_store_id, name, key_path, "
"unique_index, multientry "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TRIGGER object_data_insert_trigger;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_data (object_store_id, key_value, data, file_ids) "
"SELECT object_store_id, id, data, file_ids "
"FROM ai_object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_insert_trigger "
"AFTER INSERT ON object_data "
"FOR EACH ROW "
"WHEN NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(NULL, NEW.file_ids); "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO index_data (index_id, value, object_data_key, object_data_id) "
"SELECT ai_index_data.index_id, ai_index_data.value, ai_index_data.ai_object_data_id, object_data.id "
"FROM ai_index_data "
"INNER JOIN object_store_index ON "
"object_store_index.id = ai_index_data.index_id "
"INNER JOIN object_data ON "
"object_data.object_store_id = object_store_index.object_store_id AND "
"object_data.key_value = ai_index_data.ai_object_data_id;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO unique_index_data (index_id, value, object_data_key, object_data_id) "
"SELECT ai_unique_index_data.index_id, ai_unique_index_data.value, ai_unique_index_data.ai_object_data_id, object_data.id "
"FROM ai_unique_index_data "
"INNER JOIN object_store_index ON "
"object_store_index.id = ai_unique_index_data.index_id "
"INNER JOIN object_data ON "
"object_data.object_store_id = object_store_index.object_store_id AND "
"object_data.key_value = ai_unique_index_data.ai_object_data_id;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE object_store "
"SET auto_increment = (SELECT max(id) FROM ai_object_data) + 1 "
"WHERE auto_increment;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE ai_unique_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE ai_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE ai_object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(11, 0));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
class EncodeKeysFunction MOZ_FINAL : public mozIStorageFunction
{
public:
NS_DECL_ISUPPORTS
NS_IMETHOD
OnFunctionCall(mozIStorageValueArray* aArguments,
nsIVariant** aResult)
{
PROFILER_LABEL("IndexedDB", "EncodeKeysFunction::OnFunctionCall");
uint32_t argc;
nsresult rv = aArguments->GetNumEntries(&argc);
NS_ENSURE_SUCCESS(rv, rv);
if (argc != 1) {
NS_WARNING("Don't call me with the wrong number of arguments!");
return NS_ERROR_UNEXPECTED;
}
int32_t type;
rv = aArguments->GetTypeOfIndex(0, &type);
NS_ENSURE_SUCCESS(rv, rv);
Key key;
if (type == mozIStorageStatement::VALUE_TYPE_INTEGER) {
int64_t intKey;
aArguments->GetInt64(0, &intKey);
key.SetFromInteger(intKey);
}
else if (type == mozIStorageStatement::VALUE_TYPE_TEXT) {
nsString stringKey;
aArguments->GetString(0, stringKey);
key.SetFromString(stringKey);
}
else {
NS_WARNING("Don't call me with the wrong type of arguments!");
return NS_ERROR_UNEXPECTED;
}
const nsCString& buffer = key.GetBuffer();
std::pair<const void *, int> data(static_cast<const void*>(buffer.get()),
int(buffer.Length()));
nsCOMPtr<nsIVariant> result = new mozilla::storage::BlobVariant(data);
result.forget(aResult);
return NS_OK;
}
};
NS_IMPL_ISUPPORTS1(EncodeKeysFunction, mozIStorageFunction)
nsresult
UpgradeSchemaFrom11_0To12_0(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom11_0To12_0");
NS_NAMED_LITERAL_CSTRING(encoderName, "encode");
nsCOMPtr<mozIStorageFunction> encoder = new EncodeKeysFunction();
nsresult rv = aConnection->CreateFunction(encoderName, 1, encoder);
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"id INTEGER PRIMARY KEY, "
"object_store_id, "
"key_value, "
"data, "
"file_ids "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT id, object_store_id, encode(key_value), data, file_ids "
"FROM object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE object_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE object_data ("
"id INTEGER PRIMARY KEY, "
"object_store_id INTEGER NOT NULL, "
"key_value BLOB DEFAULT NULL, "
"file_ids TEXT, "
"data BLOB NOT NULL, "
"UNIQUE (object_store_id, key_value), "
"FOREIGN KEY (object_store_id) REFERENCES object_store(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO object_data "
"SELECT id, object_store_id, key_value, file_ids, data "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_insert_trigger "
"AFTER INSERT ON object_data "
"FOR EACH ROW "
"WHEN NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(NULL, NEW.file_ids); "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_update_trigger "
"AFTER UPDATE OF file_ids ON object_data "
"FOR EACH ROW "
"WHEN OLD.file_ids IS NOT NULL OR NEW.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NEW.file_ids); "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TRIGGER object_data_delete_trigger "
"AFTER DELETE ON object_data "
"FOR EACH ROW WHEN OLD.file_ids IS NOT NULL "
"BEGIN "
"SELECT update_refcount(OLD.file_ids, NULL); "
"END;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, encode(value), encode(object_data_key), object_data_id "
"FROM index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE index_data ("
"index_id INTEGER NOT NULL, "
"value BLOB NOT NULL, "
"object_data_key BLOB NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE, "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX index_data_object_data_id_index "
"ON index_data (object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMPORARY TABLE temp_upgrade ("
"index_id, "
"value, "
"object_data_key, "
"object_data_id "
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO temp_upgrade "
"SELECT index_id, encode(value), encode(object_data_key), object_data_id "
"FROM unique_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE unique_index_data;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE unique_index_data ("
"index_id INTEGER NOT NULL, "
"value BLOB NOT NULL, "
"object_data_key BLOB NOT NULL, "
"object_data_id INTEGER NOT NULL, "
"PRIMARY KEY (index_id, value, object_data_key), "
"UNIQUE (index_id, value), "
"FOREIGN KEY (index_id) REFERENCES object_store_index(id) ON DELETE "
"CASCADE "
"FOREIGN KEY (object_data_id) REFERENCES object_data(id) ON DELETE "
"CASCADE"
");"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO unique_index_data "
"SELECT index_id, value, object_data_key, object_data_id "
"FROM temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE temp_upgrade;"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX unique_index_data_object_data_id_index "
"ON unique_index_data (object_data_id);"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->RemoveFunction(encoderName);
NS_ENSURE_SUCCESS(rv, rv);
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(12, 0));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom12_0To13_0(mozIStorageConnection* aConnection,
bool* aVacuumNeeded)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "UpgradeSchemaFrom12_0To13_0");
nsresult rv;
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
int32_t defaultPageSize;
rv = aConnection->GetDefaultPageSize(&defaultPageSize);
NS_ENSURE_SUCCESS(rv, rv);
// Enable auto_vacuum mode and update the page size to the platform default.
nsAutoCString upgradeQuery("PRAGMA auto_vacuum = FULL; PRAGMA page_size = ");
upgradeQuery.AppendInt(defaultPageSize);
rv = aConnection->ExecuteSimpleSQL(upgradeQuery);
NS_ENSURE_SUCCESS(rv, rv);
*aVacuumNeeded = true;
#endif
rv = aConnection->SetSchemaVersion(MakeSchemaVersion(13, 0));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
UpgradeSchemaFrom13_0To14_0(mozIStorageConnection* aConnection)
{
// The only change between 13 and 14 was a different structured
// clone format, but it's backwards-compatible.
nsresult rv = aConnection->SetSchemaVersion(MakeSchemaVersion(14, 0));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
class VersionChangeEventsRunnable;
class SetVersionHelper : public AsyncConnectionHelper,
public IDBTransactionListener,
public AcquireListener
{
friend class VersionChangeEventsRunnable;
public:
SetVersionHelper(IDBTransaction* aTransaction,
IDBOpenDBRequest* aRequest,
OpenDatabaseHelper* aHelper,
uint64_t aRequestedVersion,
uint64_t aCurrentVersion)
: AsyncConnectionHelper(aTransaction, aRequest),
mOpenRequest(aRequest), mOpenHelper(aHelper),
mRequestedVersion(aRequestedVersion),
mCurrentVersion(aCurrentVersion)
{
mTransaction->SetTransactionListener(this);
}
NS_DECL_ISUPPORTS_INHERITED
virtual nsresult GetSuccessResult(JSContext* aCx,
JS::MutableHandle<JS::Value> aVal) MOZ_OVERRIDE;
virtual nsresult
OnExclusiveAccessAcquired() MOZ_OVERRIDE;
protected:
virtual nsresult Init() MOZ_OVERRIDE;
virtual nsresult DoDatabaseWork(mozIStorageConnection* aConnection)
MOZ_OVERRIDE;
// SetVersionHelper never fires an error event at the request. It hands that
// responsibility back to the OpenDatabaseHelper
virtual void OnError() MOZ_OVERRIDE
{ }
// Need an upgradeneeded event here.
virtual already_AddRefed<nsIDOMEvent> CreateSuccessEvent(
mozilla::dom::EventTarget* aOwner) MOZ_OVERRIDE;
virtual nsresult NotifyTransactionPreComplete(IDBTransaction* aTransaction)
MOZ_OVERRIDE;
virtual nsresult NotifyTransactionPostComplete(IDBTransaction* aTransaction)
MOZ_OVERRIDE;
virtual ChildProcessSendResult
SendResponseToChildProcess(nsresult aResultCode) MOZ_OVERRIDE
{
return Success_NotSent;
}
virtual nsresult UnpackResponseFromParentProcess(
const ResponseValue& aResponseValue)
MOZ_OVERRIDE
{
MOZ_CRASH("Should never get here!");
}
uint64_t RequestedVersion() const
{
return mRequestedVersion;
}
private:
// In-params
nsRefPtr<IDBOpenDBRequest> mOpenRequest;
nsRefPtr<OpenDatabaseHelper> mOpenHelper;
uint64_t mRequestedVersion;
uint64_t mCurrentVersion;
};
class DeleteDatabaseHelper : public AsyncConnectionHelper,
public AcquireListener
{
friend class VersionChangeEventsRunnable;
public:
DeleteDatabaseHelper(IDBOpenDBRequest* aRequest,
OpenDatabaseHelper* aHelper,
uint64_t aCurrentVersion,
const nsAString& aName,
const nsACString& aASCIIOrigin)
: AsyncConnectionHelper(static_cast<IDBDatabase*>(nullptr), aRequest),
mOpenHelper(aHelper), mOpenRequest(aRequest),
mCurrentVersion(aCurrentVersion), mName(aName),
mASCIIOrigin(aASCIIOrigin)
{ }
NS_DECL_ISUPPORTS_INHERITED
nsresult GetSuccessResult(JSContext* aCx,
JS::MutableHandle<JS::Value> aVal);
void ReleaseMainThreadObjects()
{
mOpenHelper = nullptr;
mOpenRequest = nullptr;
AsyncConnectionHelper::ReleaseMainThreadObjects();
}
virtual nsresult
OnExclusiveAccessAcquired() MOZ_OVERRIDE;
protected:
nsresult DoDatabaseWork(mozIStorageConnection* aConnection);
nsresult Init();
// DeleteDatabaseHelper never fires events at the request. It hands that
// responsibility back to the OpenDatabaseHelper
void OnError()
{
mOpenHelper->NotifyDeleteFinished();
}
nsresult OnSuccess()
{
return mOpenHelper->NotifyDeleteFinished();
}
uint64_t RequestedVersion() const
{
return 0;
}
virtual ChildProcessSendResult
SendResponseToChildProcess(nsresult aResultCode) MOZ_OVERRIDE
{
return Success_NotSent;
}
virtual nsresult UnpackResponseFromParentProcess(
const ResponseValue& aResponseValue)
MOZ_OVERRIDE
{
MOZ_CRASH("Should never get here!");
}
private:
// In-params
nsRefPtr<OpenDatabaseHelper> mOpenHelper;
nsRefPtr<IDBOpenDBRequest> mOpenRequest;
uint64_t mCurrentVersion;
nsString mName;
nsCString mASCIIOrigin;
};
// Responsible for firing "versionchange" events at all live and non-closed
// databases, and for firing a "blocked" event at the requesting database if any
// databases fail to close.
class VersionChangeEventsRunnable : public nsRunnable
{
public:
VersionChangeEventsRunnable(
IDBDatabase* aRequestingDatabase,
IDBOpenDBRequest* aRequest,
nsTArray<nsCOMPtr<nsIOfflineStorage> >& aWaitingDatabases,
int64_t aOldVersion,
int64_t aNewVersion)
: mRequestingDatabase(aRequestingDatabase),
mRequest(aRequest),
mOldVersion(aOldVersion),
mNewVersion(aNewVersion)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aRequestingDatabase, "Null pointer!");
NS_ASSERTION(aRequest, "Null pointer!");
mWaitingDatabases.SwapElements(aWaitingDatabases);
}
NS_IMETHOD Run()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
PROFILER_MAIN_THREAD_LABEL("IndexedDB", "VersionChangeEventsRunnable::Run");
// Fire version change events at all of the databases that are not already
// closed. Also kick bfcached documents out of bfcache.
uint32_t count = mWaitingDatabases.Length();
for (uint32_t index = 0; index < count; index++) {
IDBDatabase* database =
IDBDatabase::FromStorage(mWaitingDatabases[index]);
NS_ASSERTION(database, "This shouldn't be null!");
if (database->IsClosed()) {
continue;
}
// First check if the document the IDBDatabase is part of is bfcached.
nsCOMPtr<nsIDocument> ownerDoc = database->GetOwnerDocument();
nsIBFCacheEntry* bfCacheEntry;
if (ownerDoc && (bfCacheEntry = ownerDoc->GetBFCacheEntry())) {
bfCacheEntry->RemoveFromBFCacheSync();
NS_ASSERTION(database->IsClosed(),
"Kicking doc out of bfcache should have closed database");
continue;
}
// Next check if it's in the process of being bfcached.
nsPIDOMWindow* owner = database->GetOwner();
if (owner && owner->IsFrozen()) {
// We can't kick the document out of the bfcache because it's not yet
// fully in the bfcache. Instead we'll abort everything for the window
// and mark it as not-bfcacheable.
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "Huh?");
quotaManager->AbortCloseStoragesForWindow(owner);
NS_ASSERTION(database->IsClosed(),
"AbortCloseStoragesForWindow should have closed database");
ownerDoc->DisallowBFCaching();
continue;
}
// Otherwise fire a versionchange event.
nsRefPtr<nsDOMEvent> event =
IDBVersionChangeEvent::Create(database, mOldVersion, mNewVersion);
NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);
bool dummy;
database->DispatchEvent(event, &dummy);
}
// Now check to see if any didn't close. If there are some running still
// then fire the blocked event.
for (uint32_t index = 0; index < count; index++) {
if (!mWaitingDatabases[index]->IsClosed()) {
nsRefPtr<nsDOMEvent> event =
IDBVersionChangeEvent::CreateBlocked(mRequest,
mOldVersion, mNewVersion);
NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);
bool dummy;
mRequest->DispatchEvent(event, &dummy);
break;
}
}
return NS_OK;
}
template <class T>
static
void QueueVersionChange(nsTArray<nsCOMPtr<nsIOfflineStorage> >& aDatabases,
void* aClosure);
private:
nsRefPtr<IDBDatabase> mRequestingDatabase;
nsRefPtr<IDBOpenDBRequest> mRequest;
nsTArray<nsCOMPtr<nsIOfflineStorage> > mWaitingDatabases;
int64_t mOldVersion;
int64_t mNewVersion;
};
} // anonymous namespace
NS_IMPL_ISUPPORTS1(OpenDatabaseHelper, nsIRunnable)
nsresult
OpenDatabaseHelper::Init()
{
mDatabaseId = QuotaManager::GetStorageId(mASCIIOrigin, mName);
NS_ENSURE_TRUE(mDatabaseId, NS_ERROR_FAILURE);
return NS_OK;
}
nsresult
OpenDatabaseHelper::Dispatch(nsIEventTarget* aTarget)
{
NS_ASSERTION(mState == eCreated, "We've already been dispatched?");
mState = eDBWork;
return aTarget->Dispatch(this, NS_DISPATCH_NORMAL);
}
nsresult
OpenDatabaseHelper::RunImmediately()
{
NS_ASSERTION(mState == eCreated, "We've already been dispatched?");
NS_ASSERTION(NS_FAILED(mResultCode),
"Should only be short-circuiting if we failed!");
NS_ASSERTION(NS_IsMainThread(), "All hell is about to break lose!");
mState = eFiringEvents;
return this->Run();
}
nsresult
OpenDatabaseHelper::DoDatabaseWork()
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "OpenDatabaseHelper::DoDatabaseWork");
mState = eFiringEvents; // In case we fail somewhere along the line.
if (QuotaManager::IsShuttingDown()) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
NS_ASSERTION(mOpenDBRequest, "This should never be null!");
// This will be null for non-window contexts.
nsPIDOMWindow* window = mOpenDBRequest->GetOwner();
AutoEnterWindow autoWindow(window);
nsCOMPtr<nsIFile> dbDirectory;
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "This should never be null!");
nsresult rv =
quotaManager->EnsureOriginIsInitialized(mASCIIOrigin,
mTrackingQuota,
getter_AddRefs(dbDirectory));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = dbDirectory->Append(NS_LITERAL_STRING(IDB_DIRECTORY_NAME));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
bool exists;
rv = dbDirectory->Exists(&exists);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (!exists) {
rv = dbDirectory->Create(nsIFile::DIRECTORY_TYPE, 0755);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
#ifdef DEBUG
else {
bool isDirectory;
NS_ASSERTION(NS_SUCCEEDED(dbDirectory->IsDirectory(&isDirectory)) &&
isDirectory, "Should have caught this earlier!");
}
#endif
nsAutoString filename;
rv = GetDatabaseFilename(mName, filename);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsCOMPtr<nsIFile> dbFile;
rv = dbDirectory->Clone(getter_AddRefs(dbFile));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = dbFile->Append(filename + NS_LITERAL_STRING(".sqlite"));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = dbFile->GetPath(mDatabaseFilePath);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsCOMPtr<nsIFile> fmDirectory;
rv = dbDirectory->Clone(getter_AddRefs(fmDirectory));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = fmDirectory->Append(filename);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsCOMPtr<mozIStorageConnection> connection;
rv = CreateDatabaseConnection(dbFile, fmDirectory, mName, mASCIIOrigin,
getter_AddRefs(connection));
if (NS_FAILED(rv) &&
NS_ERROR_GET_MODULE(rv) != NS_ERROR_MODULE_DOM_INDEXEDDB) {
rv = NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
NS_ENSURE_SUCCESS(rv, rv);
rv = IDBFactory::LoadDatabaseInformation(connection, mDatabaseId,
&mCurrentVersion, mObjectStores);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (mForDeletion) {
mState = eDeletePending;
return NS_OK;
}
for (uint32_t i = 0; i < mObjectStores.Length(); i++) {
nsRefPtr<ObjectStoreInfo>& objectStoreInfo = mObjectStores[i];
for (uint32_t j = 0; j < objectStoreInfo->indexes.Length(); j++) {
IndexInfo& indexInfo = objectStoreInfo->indexes[j];
mLastIndexId = std::max(indexInfo.id, mLastIndexId);
}
mLastObjectStoreId = std::max(objectStoreInfo->id, mLastObjectStoreId);
}
// See if we need to do a VERSION_CHANGE transaction
// Optional version semantics.
if (!mRequestedVersion) {
// If the requested version was not specified and the database was created,
// treat it as if version 1 were requested.
if (mCurrentVersion == 0) {
mRequestedVersion = 1;
}
else {
// Otherwise, treat it as if the current version were requested.
mRequestedVersion = mCurrentVersion;
}
}
if (mCurrentVersion > mRequestedVersion) {
return NS_ERROR_DOM_INDEXEDDB_VERSION_ERR;
}
if (mCurrentVersion != mRequestedVersion) {
mState = eSetVersionPending;
}
IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get();
NS_ASSERTION(mgr, "This should never be null!");
nsRefPtr<FileManager> fileManager = mgr->GetFileManager(mASCIIOrigin, mName);
if (!fileManager) {
fileManager = new FileManager(mASCIIOrigin, mPrivilege, mName);
rv = fileManager->Init(fmDirectory, connection);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
mgr->AddFileManager(fileManager);
}
mFileManager = fileManager.forget();
return NS_OK;
}
// static
nsresult
OpenDatabaseHelper::CreateDatabaseConnection(
nsIFile* aDBFile,
nsIFile* aFMDirectory,
const nsAString& aName,
const nsACString& aOrigin,
mozIStorageConnection** aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
PROFILER_LABEL("IndexedDB", "OpenDatabaseHelper::CreateDatabaseConnection");
nsresult rv;
bool exists;
if (IndexedDatabaseManager::InLowDiskSpaceMode()) {
rv = aDBFile->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
if (!exists) {
NS_WARNING("Refusing to create database because disk space is low!");
return NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
}
}
nsCOMPtr<nsIFileURL> dbFileUrl =
IDBFactory::GetDatabaseFileURL(aDBFile, aOrigin);
NS_ENSURE_TRUE(dbFileUrl, NS_ERROR_FAILURE);
nsCOMPtr<mozIStorageService> ss =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
NS_ENSURE_TRUE(ss, NS_ERROR_FAILURE);
nsCOMPtr<mozIStorageConnection> connection;
rv = ss->OpenDatabaseWithFileURL(dbFileUrl, getter_AddRefs(connection));
if (rv == NS_ERROR_FILE_CORRUPTED) {
// If we're just opening the database during origin initialization, then
// we don't want to erase any files. The failure here will fail origin
// initialization too.
if (aName.IsVoid()) {
return rv;
}
// Nuke the database file. The web services can recreate their data.
rv = aDBFile->Remove(false);
NS_ENSURE_SUCCESS(rv, rv);
rv = aFMDirectory->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
if (exists) {
bool isDirectory;
rv = aFMDirectory->IsDirectory(&isDirectory);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(isDirectory, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = aFMDirectory->Remove(true);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = ss->OpenDatabaseWithFileURL(dbFileUrl, getter_AddRefs(connection));
}
NS_ENSURE_SUCCESS(rv, rv);
rv = IDBFactory::SetDefaultPragmas(connection);
NS_ENSURE_SUCCESS(rv, rv);
rv = connection->EnableModule(NS_LITERAL_CSTRING("filesystem"));
NS_ENSURE_SUCCESS(rv, rv);
// Check to make sure that the database schema is correct.
int32_t schemaVersion;
rv = connection->GetSchemaVersion(&schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
// Unknown schema will fail origin initialization too
if (!schemaVersion && aName.IsVoid()) {
NS_WARNING("Unable to open IndexedDB database, schema is not set!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
if (schemaVersion > kSQLiteSchemaVersion) {
NS_WARNING("Unable to open IndexedDB database, schema is too high!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
bool vacuumNeeded = false;
if (schemaVersion != kSQLiteSchemaVersion) {
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
if (!schemaVersion) {
// Have to do this before opening a transaction.
rv = connection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
// Turn on auto_vacuum mode to reclaim disk space on mobile devices.
"PRAGMA auto_vacuum = FULL; "
));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
#endif
mozStorageTransaction transaction(connection, false,
mozIStorageConnection::TRANSACTION_IMMEDIATE);
if (!schemaVersion) {
// Brand new file, initialize our tables.
rv = CreateTables(connection);
NS_ENSURE_SUCCESS(rv, rv);
NS_ASSERTION(NS_SUCCEEDED(connection->GetSchemaVersion(&schemaVersion)) &&
schemaVersion == kSQLiteSchemaVersion,
"CreateTables set a bad schema version!");
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = connection->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO database (name) "
"VALUES (:name)"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), aName);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
else {
// This logic needs to change next time we change the schema!
static_assert(kSQLiteSchemaVersion == int32_t((14 << 4) + 0),
"Need upgrade code from schema version increase.");
while (schemaVersion != kSQLiteSchemaVersion) {
if (schemaVersion == 4) {
rv = UpgradeSchemaFrom4To5(connection);
}
else if (schemaVersion == 5) {
rv = UpgradeSchemaFrom5To6(connection);
}
else if (schemaVersion == 6) {
rv = UpgradeSchemaFrom6To7(connection);
}
else if (schemaVersion == 7) {
rv = UpgradeSchemaFrom7To8(connection);
}
else if (schemaVersion == 8) {
rv = UpgradeSchemaFrom8To9_0(connection);
vacuumNeeded = true;
}
else if (schemaVersion == MakeSchemaVersion(9, 0)) {
rv = UpgradeSchemaFrom9_0To10_0(connection);
}
else if (schemaVersion == MakeSchemaVersion(10, 0)) {
rv = UpgradeSchemaFrom10_0To11_0(connection);
}
else if (schemaVersion == MakeSchemaVersion(11, 0)) {
rv = UpgradeSchemaFrom11_0To12_0(connection);
}
else if (schemaVersion == MakeSchemaVersion(12, 0)) {
rv = UpgradeSchemaFrom12_0To13_0(connection, &vacuumNeeded);
}
else if (schemaVersion == MakeSchemaVersion(13, 0)) {
rv = UpgradeSchemaFrom13_0To14_0(connection);
}
else {
NS_WARNING("Unable to open IndexedDB database, no upgrade path is "
"available!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
NS_ENSURE_SUCCESS(rv, rv);
rv = connection->GetSchemaVersion(&schemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
}
NS_ASSERTION(schemaVersion == kSQLiteSchemaVersion, "Huh?!");
}
rv = transaction.Commit();
if (rv == NS_ERROR_FILE_NO_DEVICE_SPACE) {
// mozstorage translates SQLITE_FULL to NS_ERROR_FILE_NO_DEVICE_SPACE,
// which we know better as NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR.
rv = NS_ERROR_DOM_INDEXEDDB_QUOTA_ERR;
}
NS_ENSURE_SUCCESS(rv, rv);
}
if (vacuumNeeded) {
rv = connection->ExecuteSimpleSQL(NS_LITERAL_CSTRING("VACUUM;"));
NS_ENSURE_SUCCESS(rv, rv);
}
connection.forget(aConnection);
return NS_OK;
}
nsresult
OpenDatabaseHelper::StartSetVersion()
{
NS_ASSERTION(mState == eSetVersionPending, "Why are we here?");
// In case we fail, fire error events
mState = eFiringEvents;
nsresult rv = EnsureSuccessResult();
NS_ENSURE_SUCCESS(rv, rv);
Sequence<nsString> storesToOpen;
nsRefPtr<IDBTransaction> transaction =
IDBTransaction::Create(mDatabase, storesToOpen,
IDBTransaction::VERSION_CHANGE, true);
NS_ENSURE_TRUE(transaction, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<SetVersionHelper> helper =
new SetVersionHelper(transaction, mOpenDBRequest, this, mRequestedVersion,
mCurrentVersion);
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "This should never be null!");
rv = quotaManager->AcquireExclusiveAccess(
mDatabase, mDatabase->Origin(), helper,
&VersionChangeEventsRunnable::QueueVersionChange<SetVersionHelper>,
helper);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
// The SetVersionHelper is responsible for dispatching us back to the
// main thread again and changing the state to eSetVersionCompleted.
mState = eSetVersionPending;
return NS_OK;
}
nsresult
OpenDatabaseHelper::StartDelete()
{
NS_ASSERTION(mState == eDeletePending, "Why are we here?");
// In case we fail, fire error events
mState = eFiringEvents;
nsresult rv = EnsureSuccessResult();
NS_ENSURE_SUCCESS(rv, rv);
nsRefPtr<DeleteDatabaseHelper> helper =
new DeleteDatabaseHelper(mOpenDBRequest, this, mCurrentVersion, mName,
mASCIIOrigin);
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "This should never be null!");
rv = quotaManager->AcquireExclusiveAccess(
mDatabase, mDatabase->Origin(), helper,
&VersionChangeEventsRunnable::QueueVersionChange<DeleteDatabaseHelper>,
helper);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
// The DeleteDatabaseHelper is responsible for dispatching us back to the
// main thread again and changing the state to eDeleteCompleted.
mState = eDeletePending;
return NS_OK;
}
NS_IMETHODIMP
OpenDatabaseHelper::Run()
{
NS_ASSERTION(mState != eCreated, "Dispatch was not called?!?");
if (NS_IsMainThread()) {
PROFILER_MAIN_THREAD_LABEL("IndexedDB", "OpenDatabaseHelper::Run");
// If we need to queue up a SetVersionHelper, do that here.
if (mState == eSetVersionPending) {
nsresult rv = StartSetVersion();
if (NS_SUCCEEDED(rv)) {
return rv;
}
SetError(rv);
// fall through and run the default error processing
}
else if (mState == eDeletePending) {
nsresult rv = StartDelete();
if (NS_SUCCEEDED(rv)) {
return rv;
}
SetError(rv);
// fall through and run the default error processing
}
// We've done whatever work we need to do on the DB thread, and any
// SetVersion/DeleteDatabase stuff is done by now.
NS_ASSERTION(mState == eFiringEvents ||
mState == eSetVersionCompleted ||
mState == eDeleteCompleted, "Why are we here?");
switch (mState) {
case eSetVersionCompleted: {
mState = eFiringEvents;
break;
}
case eDeleteCompleted: {
// Destroy the database now (we should have the only ref).
mDatabase = nullptr;
DatabaseInfo::Remove(mDatabaseId);
mState = eFiringEvents;
break;
}
case eFiringEvents: {
// Notify the request that we're done, but only if we didn't just
// finish a [SetVersion/DeleteDatabase]Helper. In that case, the
// helper tells the request that it is done, and we avoid calling
// NotifyHelperCompleted twice.
nsresult rv = mOpenDBRequest->NotifyHelperCompleted(this);
if (NS_SUCCEEDED(mResultCode) && NS_FAILED(rv)) {
mResultCode = rv;
}
break;
}
default:
NS_NOTREACHED("Shouldn't get here!");
}
NS_ASSERTION(mState == eFiringEvents, "Why are we here?");
IDB_PROFILER_MARK("IndexedDB Request %llu: Running main thread "
"response (rv = %lu)",
"IDBRequest[%llu] MT Done",
mRequest->GetSerialNumber(), mResultCode);
if (NS_FAILED(mResultCode)) {
DispatchErrorEvent();
} else {
DispatchSuccessEvent();
}
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "This should never be null!");
quotaManager->AllowNextSynchronizedOp(
OriginOrPatternString::FromOrigin(mASCIIOrigin),
mDatabaseId);
ReleaseMainThreadObjects();
return NS_OK;
}
PROFILER_LABEL("IndexedDB", "OpenDatabaseHelper::Run");
// We're on the DB thread.
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
IDB_PROFILER_MARK("IndexedDB Request %llu: Beginning database work",
"IDBRequest[%llu] DT Start", mRequest->GetSerialNumber());
NS_ASSERTION(mState == eDBWork, "Why are we here?");
mResultCode = DoDatabaseWork();
NS_ASSERTION(mState != eDBWork, "We should be doing something else now.");
IDB_PROFILER_MARK("IndexedDB Request %llu: Finished database work (rv = %lu)",
"IDBRequest[%llu] DT Done", mRequest->GetSerialNumber(),
mResultCode);
return NS_DispatchToMainThread(this, NS_DISPATCH_NORMAL);
}
nsresult
OpenDatabaseHelper::EnsureSuccessResult()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
PROFILER_MAIN_THREAD_LABEL("IndexedDB",
"OpenDatabaseHelper::EnsureSuccessResult");
nsRefPtr<DatabaseInfo> dbInfo;
if (DatabaseInfo::Get(mDatabaseId, getter_AddRefs(dbInfo))) {
#ifdef DEBUG
{
NS_ASSERTION(dbInfo->name == mName &&
dbInfo->version == mCurrentVersion &&
dbInfo->id == mDatabaseId &&
dbInfo->filePath == mDatabaseFilePath,
"Metadata mismatch!");
uint32_t objectStoreCount = mObjectStores.Length();
for (uint32_t index = 0; index < objectStoreCount; index++) {
nsRefPtr<ObjectStoreInfo>& info = mObjectStores[index];
ObjectStoreInfo* otherInfo = dbInfo->GetObjectStore(info->name);
NS_ASSERTION(otherInfo, "ObjectStore not known!");
NS_ASSERTION(info->name == otherInfo->name &&
info->id == otherInfo->id &&
info->keyPath == otherInfo->keyPath,
"Metadata mismatch!");
NS_ASSERTION(dbInfo->ContainsStoreName(info->name),
"Object store names out of date!");
NS_ASSERTION(info->indexes.Length() == otherInfo->indexes.Length(),
"Bad index length!");
uint32_t indexCount = info->indexes.Length();
for (uint32_t indexIndex = 0; indexIndex < indexCount; indexIndex++) {
const IndexInfo& indexInfo = info->indexes[indexIndex];
const IndexInfo& otherIndexInfo = otherInfo->indexes[indexIndex];
NS_ASSERTION(indexInfo.id == otherIndexInfo.id,
"Bad index id!");
NS_ASSERTION(indexInfo.name == otherIndexInfo.name,
"Bad index name!");
NS_ASSERTION(indexInfo.keyPath == otherIndexInfo.keyPath,
"Bad index keyPath!");
NS_ASSERTION(indexInfo.unique == otherIndexInfo.unique,
"Bad index unique value!");
}
}
}
#endif
}
else {
nsRefPtr<DatabaseInfo> newInfo(new DatabaseInfo());
newInfo->name = mName;
newInfo->origin = mASCIIOrigin;
newInfo->id = mDatabaseId;
newInfo->filePath = mDatabaseFilePath;
if (!DatabaseInfo::Put(newInfo)) {
NS_ERROR("Failed to add to hash!");
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
newInfo.swap(dbInfo);
nsresult rv = IDBFactory::SetDatabaseMetadata(dbInfo, mCurrentVersion,
mObjectStores);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
NS_ASSERTION(mObjectStores.IsEmpty(), "Should have swapped!");
}
dbInfo->nextObjectStoreId = mLastObjectStoreId + 1;
dbInfo->nextIndexId = mLastIndexId + 1;
nsRefPtr<IDBDatabase> database =
IDBDatabase::Create(mOpenDBRequest, mOpenDBRequest->Factory(),
dbInfo.forget(), mASCIIOrigin, mFileManager,
mContentParent);
if (!database) {
return NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR;
}
NS_ASSERTION(!mDatabase, "Shouldn't have a database yet!");
mDatabase.swap(database);
return NS_OK;
}
nsresult
OpenDatabaseHelper::GetSuccessResult(JSContext* aCx,
JS::MutableHandle<JS::Value> aVal)
{
// Be careful not to load the database twice.
if (!mDatabase) {
nsresult rv = EnsureSuccessResult();
NS_ENSURE_SUCCESS(rv, rv);
}
return WrapNative(aCx, NS_ISUPPORTS_CAST(EventTarget*, mDatabase),
aVal);
}
nsresult
OpenDatabaseHelper::NotifySetVersionFinished()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread");
NS_ASSERTION(mState = eSetVersionPending, "How did we get here?");
// Allow transaction creation to proceed.
mDatabase->ExitSetVersionTransaction();
mState = eSetVersionCompleted;
// Dispatch ourself back to the main thread
return NS_DispatchToCurrentThread(this);
}
nsresult
OpenDatabaseHelper::NotifyDeleteFinished()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread");
NS_ASSERTION(mState == eDeletePending, "How did we get here?");
mState = eDeleteCompleted;
// Dispatch ourself back to the main thread
return NS_DispatchToCurrentThread(this);
}
void
OpenDatabaseHelper::BlockDatabase()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(mDatabase, "This is going bad fast.");
mDatabase->EnterSetVersionTransaction();
}
void
OpenDatabaseHelper::DispatchSuccessEvent()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
PROFILER_MAIN_THREAD_LABEL("IndexedDB",
"OpenDatabaseHelper::DispatchSuccessEvent");
nsRefPtr<nsIDOMEvent> event =
CreateGenericEvent(mOpenDBRequest, NS_LITERAL_STRING(SUCCESS_EVT_STR),
eDoesNotBubble, eNotCancelable);
if (!event) {
NS_ERROR("Failed to create event!");
return;
}
bool dummy;
mOpenDBRequest->DispatchEvent(event, &dummy);
}
void
OpenDatabaseHelper::DispatchErrorEvent()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
PROFILER_MAIN_THREAD_LABEL("IndexedDB",
"OpenDatabaseHelper::DispatchErrorEvent");
nsRefPtr<nsIDOMEvent> event =
CreateGenericEvent(mOpenDBRequest, NS_LITERAL_STRING(ERROR_EVT_STR),
eDoesBubble, eCancelable);
if (!event) {
NS_ERROR("Failed to create event!");
return;
}
ErrorResult rv;
nsRefPtr<DOMError> error = mOpenDBRequest->GetError(rv);
NS_ASSERTION(!rv.Failed(), "This shouldn't be failing at this point!");
if (!error) {
mOpenDBRequest->SetError(mResultCode);
}
bool dummy;
mOpenDBRequest->DispatchEvent(event, &dummy);
}
void
OpenDatabaseHelper::ReleaseMainThreadObjects()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
mOpenDBRequest = nullptr;
mDatabase = nullptr;
mDatabaseId = nullptr;
HelperBase::ReleaseMainThreadObjects();
}
NS_IMPL_ISUPPORTS_INHERITED0(SetVersionHelper, AsyncConnectionHelper)
nsresult
SetVersionHelper::Init()
{
// Block transaction creation until we are done.
mOpenHelper->BlockDatabase();
return NS_OK;
}
nsresult
SetVersionHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
NS_ASSERTION(aConnection, "Passing a null connection!");
PROFILER_LABEL("IndexedDB", "SetVersionHelper::DoDatabaseWork");
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE database "
"SET version = :version"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("version"),
mRequestedVersion);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (NS_FAILED(stmt->Execute())) {
return NS_ERROR_DOM_INDEXEDDB_CONSTRAINT_ERR;
}
return NS_OK;
}
nsresult
SetVersionHelper::GetSuccessResult(JSContext* aCx,
JS::MutableHandle<JS::Value> aVal)
{
DatabaseInfo* info = mDatabase->Info();
info->version = mRequestedVersion;
NS_ASSERTION(mTransaction, "Better have a transaction!");
mOpenRequest->SetTransaction(mTransaction);
return WrapNative(aCx, NS_ISUPPORTS_CAST(EventTarget*, mDatabase),
aVal);
}
nsresult
SetVersionHelper::OnExclusiveAccessAcquired()
{
nsresult rv = DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
// static
template <class T>
void
VersionChangeEventsRunnable::QueueVersionChange(
nsTArray<nsCOMPtr<nsIOfflineStorage> >& aDatabases,
void* aClosure)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(!aDatabases.IsEmpty(), "Why are we here?");
T* closure = static_cast<T*>(aClosure);
nsRefPtr<VersionChangeEventsRunnable> eventsRunnable =
new VersionChangeEventsRunnable(closure->mOpenHelper->Database(),
closure->mOpenRequest,
aDatabases,
closure->mCurrentVersion,
closure->RequestedVersion());
NS_DispatchToCurrentThread(eventsRunnable);
}
already_AddRefed<nsIDOMEvent>
SetVersionHelper::CreateSuccessEvent(mozilla::dom::EventTarget* aOwner)
{
NS_ASSERTION(mCurrentVersion < mRequestedVersion, "Huh?");
return IDBVersionChangeEvent::CreateUpgradeNeeded(aOwner,
mCurrentVersion,
mRequestedVersion);
}
nsresult
SetVersionHelper::NotifyTransactionPreComplete(IDBTransaction* aTransaction)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aTransaction, "This is unexpected.");
NS_ASSERTION(mOpenRequest, "Why don't we have a request?");
return mOpenHelper->NotifySetVersionFinished();
}
nsresult
SetVersionHelper::NotifyTransactionPostComplete(IDBTransaction* aTransaction)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aTransaction, "This is unexpected.");
NS_ASSERTION(mOpenRequest, "Why don't we have a request?");
// If we hit an error, the OpenDatabaseHelper needs to get that error too.
nsresult rv = GetResultCode();
if (NS_FAILED(rv)) {
mOpenHelper->SetError(rv);
}
// If the transaction was aborted, we should throw an error message.
if (aTransaction->IsAborted()) {
mOpenHelper->SetError(aTransaction->GetAbortCode());
}
mOpenRequest->SetTransaction(nullptr);
mOpenRequest = nullptr;
mOpenHelper = nullptr;
return rv;
}
NS_IMPL_ISUPPORTS_INHERITED0(DeleteDatabaseHelper, AsyncConnectionHelper);
nsresult
DeleteDatabaseHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
AssertIsOnIOThread();
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
NS_ASSERTION(!aConnection, "How did we get a connection here?");
PROFILER_LABEL("IndexedDB", "DeleteDatabaseHelper::DoDatabaseWork");
const StoragePrivilege& privilege = mOpenHelper->Privilege();
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "This should never fail!");
nsCOMPtr<nsIFile> directory;
nsresult rv = quotaManager->GetDirectoryForOrigin(mASCIIOrigin,
getter_AddRefs(directory));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
NS_ASSERTION(directory, "What?");
rv = directory->Append(NS_LITERAL_STRING(IDB_DIRECTORY_NAME));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsAutoString filename;
rv = GetDatabaseFilename(mName, filename);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsCOMPtr<nsIFile> dbFile;
rv = directory->Clone(getter_AddRefs(dbFile));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = dbFile->Append(filename + NS_LITERAL_STRING(".sqlite"));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
bool exists = false;
rv = dbFile->Exists(&exists);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (exists) {
int64_t fileSize;
if (privilege != Chrome) {
rv = dbFile->GetFileSize(&fileSize);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
rv = dbFile->Remove(false);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (privilege != Chrome) {
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "Shouldn't be null!");
quotaManager->DecreaseUsageForOrigin(mASCIIOrigin, fileSize);
}
}
nsCOMPtr<nsIFile> dbJournalFile;
rv = directory->Clone(getter_AddRefs(dbJournalFile));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = dbJournalFile->Append(filename + NS_LITERAL_STRING(".sqlite-journal"));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = dbJournalFile->Exists(&exists);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (exists) {
rv = dbJournalFile->Remove(false);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
nsCOMPtr<nsIFile> fmDirectory;
rv = directory->Clone(getter_AddRefs(fmDirectory));
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = fmDirectory->Append(filename);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
rv = fmDirectory->Exists(&exists);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (exists) {
bool isDirectory;
rv = fmDirectory->IsDirectory(&isDirectory);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(isDirectory, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
uint64_t usage = 0;
if (privilege != Chrome) {
rv = FileManager::GetUsage(fmDirectory, &usage);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
rv = fmDirectory->Remove(true);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (privilege != Chrome) {
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "Shouldn't be null!");
quotaManager->DecreaseUsageForOrigin(mASCIIOrigin, usage);
}
}
IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get();
NS_ASSERTION(mgr, "This should never fail!");
mgr->InvalidateFileManager(mASCIIOrigin, mName);
return NS_OK;
}
nsresult
DeleteDatabaseHelper::GetSuccessResult(JSContext* aCx, JS::MutableHandle<JS::Value> aVal)
{
return NS_OK;
}
nsresult
DeleteDatabaseHelper::OnExclusiveAccessAcquired()
{
QuotaManager* quotaManager = QuotaManager::Get();
NS_ASSERTION(quotaManager, "We should definitely have a manager here");
nsresult rv = Dispatch(quotaManager->IOThread());
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
DeleteDatabaseHelper::Init()
{
// Note that there's no need to block the database here, since the page
// never gets to touch it, and all other databases must be closed.
return NS_OK;
}
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