/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/Assertions.h"

#include "mozilla/ChaosMode.h"

#if defined(XP_WIN)

#include <windows.h>

#else

#include <unistd.h>

#endif

namespace mozilla {

void

DelayForChaosMode(ChaosFeature aFeature, const uint32_t aMicrosecondLimit)

{

  if (!ChaosMode::isActive(aFeature)) {

    return;

  }

  MOZ_ASSERT(aMicrosecondLimit <= 1000);

#if defined(XP_WIN)

  // Windows doesn't support sleeping at less than millisecond resolution.

  // We could spin here, or we could just sleep for one millisecond.

  // Sleeping for a full millisecond causes heavy delays, so we don't do anything

  // here for now until we have found a good way to sleep more precisely here.

#else

  const uint32_t duration = ChaosMode::randomUint32LessThan(aMicrosecondLimit);

  ::usleep(duration);

#endif

}

} // namespace mozilla