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time.h
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00001 /*
00002  * Copyright (c) 2008-2009 Apple Inc. All rights reserved.
00003  *
00004  * @APPLE_APACHE_LICENSE_HEADER_START@
00005  * 
00006  * Licensed under the Apache License, Version 2.0 (the "License");
00007  * you may not use this file except in compliance with the License.
00008  * You may obtain a copy of the License at
00009  * 
00010  *     http://www.apache.org/licenses/LICENSE-2.0
00011  * 
00012  * Unless required by applicable law or agreed to in writing, software
00013  * distributed under the License is distributed on an "AS IS" BASIS,
00014  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00015  * See the License for the specific language governing permissions and
00016  * limitations under the License.
00017  * 
00018  * @APPLE_APACHE_LICENSE_HEADER_END@
00019  */
00020 
00021 #ifndef __DISPATCH_TIME__
00022 #define __DISPATCH_TIME__
00023 
00029 #ifndef __DISPATCH_INDIRECT__
00030 #error "Please #include <dispatch/dispatch.h> instead of this file directly."
00031 #include "base.h" // for HeaderDoc
00032 #endif
00033 
00034 #if !defined(__GNUC__) && defined(_WIN32) && _MSC_VER < 1600
00035 # include "../../core/platform/windows/stdint.h"
00036 #else
00037 # include <stdint.h>
00038 #endif
00039 
00040 __DISPATCH_BEGIN_DECLS
00041 
00042 struct timespec;
00043 
00044 // 6368156
00045 #ifdef NSEC_PER_SEC
00046 #undef NSEC_PER_SEC
00047 #endif
00048 #ifdef USEC_PER_SEC
00049 #undef USEC_PER_SEC
00050 #endif
00051 #ifdef NSEC_PER_USEC
00052 #undef NSEC_PER_USEC
00053 #endif
00054 #ifdef NSEC_PER_MSEC
00055 #undef NSEC_PER_MSEC
00056 #endif
00057 #define NSEC_PER_SEC (uint64_t)1000000000
00058 #define NSEC_PER_MSEC (uint64_t)1000000
00059 #define USEC_PER_SEC (uint64_t)1000000
00060 #define NSEC_PER_USEC (uint64_t)1000
00061 
00069 typedef uint64_t dispatch_time_t;
00070 
00071 #define DISPATCH_TIME_NOW 0ull
00072 #define DISPATCH_TIME_FOREVER (~0ull)
00073 
00091 DISPATCH_EXPORT 
00092 dispatch_time_t
00093 dispatch_time(dispatch_time_t when, int64_t delta);
00094 
00111 DISPATCH_EXPORT 
00112 dispatch_time_t
00113 dispatch_walltime(const struct timespec *when, int64_t delta);
00114 
00115 __DISPATCH_END_DECLS
00116 
00119 #endif
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