storage/mozStorageResultSet.cpp
author Boris Zbarsky <bzbarsky@mit.edu>
Mon, 12 Feb 2018 15:44:40 -0500
changeset 403548 91d647c847e56cb0db2be19647507cec207b1d08
parent 244682 dd79977a3286d947aff8e270245d05c05e676964
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1436902 part 3. Replace usage of NS_IMPL_ISUPPORTS_INHERITED0 with NS_INLINE_DECL_REFCOUNTING_INHERITED when possible. r=mccr8 The change to RootAccessible.cpp fixes an obvious bug introduced in bug 741707. The visibility changes in gfx/thebes are because NS_DECL_ISUPPORTS has a trailing "public:" that those classes were relying on to have public constructors. MozReview-Commit-ID: IeB8KIJCGhU

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
 * 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 "mozStorageRow.h"
#include "mozStorageResultSet.h"

namespace mozilla {
namespace storage {

////////////////////////////////////////////////////////////////////////////////
//// ResultSet

ResultSet::ResultSet()
: mCurrentIndex(0)
{
}

ResultSet::~ResultSet()
{
  mData.Clear();
}

nsresult
ResultSet::add(mozIStorageRow *aRow)
{
  return mData.AppendObject(aRow) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/**
 * Note:  This object is only ever accessed on one thread at a time.  It it not
 *        threadsafe, but it does need threadsafe AddRef and Release.
 */
NS_IMPL_ISUPPORTS(
  ResultSet,
  mozIStorageResultSet
)

////////////////////////////////////////////////////////////////////////////////
//// mozIStorageResultSet

NS_IMETHODIMP
ResultSet::GetNextRow(mozIStorageRow **_row)
{
  NS_ENSURE_ARG_POINTER(_row);

  if (mCurrentIndex >= mData.Count()) {
    // Just return null here
    return NS_OK;
  }

  NS_ADDREF(*_row = mData.ObjectAt(mCurrentIndex++));
  return NS_OK;
}

} // namespace storage
} // namespace mozilla