Files
engine/fml/platform/linux/timerfd.h
T
Chris Bracken 0f1ff3bdb3 Correct typos, adopt US spellings (#9081)
Corects a bnuch of typeos throughout teh engien codebsae. Also makes
a couple minor Commonwealth -> US spelling adjustments for consistency
with the rest of Flutter's codebase.

Made use of `misspell` tool:
https://github.com/client9/misspell
2019-05-25 13:14:46 -07:00

57 lines
1.5 KiB
C++

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_FML_PLATFORM_LINUX_TIMER_FD_H_
#define FLUTTER_FML_PLATFORM_LINUX_TIMER_FD_H_
#include "flutter/fml/time/time_point.h"
// clang-format off
#if __has_include(<sys/timerfd.h>) && \
(!defined(__ANDROID_API__) || __ANDROID_API__ >= 19)
// sys/timerfd.h is always present in Android NDK due to unified headers,
// but timerfd functions are only available on API 19 or later.
// clang-format on
#include <sys/timerfd.h>
#define FML_TIMERFD_AVAILABLE 1
#else // __has_include(<sys/timerfd.h>)
#define FML_TIMERFD_AVAILABLE 0
#include <sys/types.h>
// Must come after sys/types
#include <linux/time.h>
#define TFD_TIMER_ABSTIME (1 << 0)
#define TFD_TIMER_CANCEL_ON_SET (1 << 1)
#define TFD_CLOEXEC O_CLOEXEC
#define TFD_NONBLOCK O_NONBLOCK
int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufc,
int flags,
const struct itimerspec* utmr,
struct itimerspec* otmr);
#endif // __has_include(<sys/timerfd.h>)
namespace fml {
/// Rearms the timer to expire at the given time point.
bool TimerRearm(int fd, fml::TimePoint time_point);
/// Drains the timer FD and returns true if it has expired. This may be false in
/// case the timer read is non-blocking and this routine was called before the
/// timer expiry.
bool TimerDrain(int fd);
} // namespace fml
#endif // FLUTTER_FML_PLATFORM_LINUX_TIMER_FD_H_