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- /*
- * Copyright (c) Yann Collet, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under both the BSD-style license (found in the
- * LICENSE file in the root directory of this source tree) and the GPLv2 (found
- * in the COPYING file in the root directory of this source tree).
- * You may select, at your option, one of the above-listed licenses.
- */
- #ifndef TIME_FN_H_MODULE_287987
- #define TIME_FN_H_MODULE_287987
- #if defined (__cplusplus)
- extern "C" {
- #endif
- /*-****************************************
- * Dependencies
- ******************************************/
- #include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
- /*-****************************************
- * Local Types
- ******************************************/
- #if !defined (__VMS) && (defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) )
- # if defined(_AIX)
- # include <inttypes.h>
- # else
- # include <stdint.h> /* intptr_t */
- # endif
- typedef uint64_t PTime; /* Precise Time */
- #else
- typedef unsigned long long PTime; /* does not support compilers without long long support */
- #endif
- /*-****************************************
- * Time functions
- ******************************************/
- #if defined(_WIN32) /* Windows */
- #include <windows.h> /* LARGE_INTEGER */
- typedef LARGE_INTEGER UTIL_time_t;
- #define UTIL_TIME_INITIALIZER { { 0, 0 } }
- #elif defined(__APPLE__) && defined(__MACH__)
- #include <mach/mach_time.h>
- typedef PTime UTIL_time_t;
- #define UTIL_TIME_INITIALIZER 0
- /* C11 requires timespec_get, but FreeBSD 11 lacks it, while still claiming C11 compliance.
- Android also lacks it but does define TIME_UTC. */
- #elif (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) /* C11 */) \
- && defined(TIME_UTC) && !defined(__ANDROID__)
- typedef struct timespec UTIL_time_t;
- #define UTIL_TIME_INITIALIZER { 0, 0 }
- #else /* relies on standard C90 (note : clock_t measurements can be wrong when using multi-threading) */
- typedef clock_t UTIL_time_t;
- #define UTIL_TIME_INITIALIZER 0
- #endif
- UTIL_time_t UTIL_getTime(void);
- PTime UTIL_getSpanTimeMicro(UTIL_time_t clockStart, UTIL_time_t clockEnd);
- PTime UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd);
- #define SEC_TO_MICRO ((PTime)1000000)
- PTime UTIL_clockSpanMicro(UTIL_time_t clockStart);
- PTime UTIL_clockSpanNano(UTIL_time_t clockStart);
- void UTIL_waitForNextTick(void);
- #if defined (__cplusplus)
- }
- #endif
- #endif /* TIME_FN_H_MODULE_287987 */
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