include/libdispatch/time.h

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/*
* Copyright (c) 2008-2009 Apple Inc. All rights reserved.
* Copyright (c) 2011 MLBA. All rights reserved.
*
* @MLBA_OPEN_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* 
*     http://www.apache.org/licenses/LICENSE-2.0
* 
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @MLBA_OPEN_LICENSE_HEADER_END@
*/



#ifndef __DISPATCH_TIME__
#define __DISPATCH_TIME__

#ifndef __DISPATCH_INDIRECT__
#error "Please #include <xdispatch/dispatch.h> instead of this file directly."
#include "base.h" // for HeaderDoc
#endif

#include <stdint.h>

__DISPATCH_BEGIN_DECLS

struct timespec;

// 6368156
#ifdef NSEC_PER_SEC
#undef NSEC_PER_SEC
#endif
#ifdef USEC_PER_SEC
#undef USEC_PER_SEC
#endif
#ifdef NSEC_PER_USEC
#undef NSEC_PER_USEC
#endif
#ifdef NSEC_PER_MSEC
#undef NSEC_PER_MSEC
#endif
#define NSEC_PER_SEC 1000000000ll
#define NSEC_PER_MSEC 1000000ll
#define USEC_PER_SEC 1000000ll
#define NSEC_PER_USEC 1000ll

typedef uint64_t dispatch_time_t;

#define DISPATCH_TIME_NOW 0
#define DISPATCH_TIME_FOREVER (~0ull)

DISPATCH_EXPORT dispatch_time_t
dispatch_time(dispatch_time_t when, int64_t delta);

DISPATCH_EXPORT dispatch_time_t
dispatch_walltime(const struct timespec *when, int64_t delta);

__DISPATCH_END_DECLS

#endif