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/* -*- 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 "ThreadDelay.h"
#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
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