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zstd/programs/timefn.h

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benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
/*
Fix copyright and license lines * All copyright lines now have -2020 instead of -present * All copyright lines include "Facebook, Inc" * All licenses are now standardized The copyright in `threading.{h,c}` is not changed because it comes from zstdmt. The copyright and license of `divsufsort.{h,c}` is not changed.
2020-03-26 22:19:05 +00:00
* Copyright (c) 2016-2020, Yann Collet, Facebook, Inc.
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
* 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 */) )
# include <stdint.h>
tried a blindfix for unix + c11
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typedef uint64_t PTime; /* Precise Time */
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
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#else
tried a blindfix for unix + c11
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typedef unsigned long long PTime; /* does not support compilers without long long support */
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
#endif
/*-****************************************
* Time functions
******************************************/
#if defined(_WIN32) /* Windows */
Use lowercase windows.h Helps for cross builds, doesn't matter on Windows itself.
2019-11-12 23:59:06 +00:00
#include <windows.h> /* LARGE_INTEGER */
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
typedef LARGE_INTEGER UTIL_time_t;
tried a blindfix for unix + c11
2019-04-10 20:26:27 +00:00
#define UTIL_TIME_INITIALIZER { { 0, 0 } }
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
#elif defined(__APPLE__) && defined(__MACH__)
#include <mach/mach_time.h>
typedef PTime UTIL_time_t;
tried a blindfix for unix + c11
2019-04-10 20:26:27 +00:00
#define UTIL_TIME_INITIALIZER 0
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
Update comment in timefn
2020-01-22 19:17:30 +00:00
/* C11 requires timespec_get, but FreeBSD 11 lacks it, while still claiming C11 compliance.
Android also lacks it but does define TIME_UTC. */
FreeBSD_11 specific fix C11 mandates the definition of timespec_get() and TIME_UTC. However, FreeBSD11 announce C11 compliance, but does not provifr timespec_get(), breaking link stage for benchfn. Since it does not provide TIME_UTC either, which is also required by C11, test this macro: this will automatically rule out FreeBSD 11 for this code path (it will use the backup C90 path instead, based on clock_t). The issue seeems fixed in FreeBSD 12.
2019-04-10 22:22:18 +00:00
#elif (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) /* C11 */) \
Update comment in timefn
2020-01-22 19:17:30 +00:00
&& defined(TIME_UTC) && !defined(__ANDROID__)
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
FreeBSD_11 specific fix C11 mandates the definition of timespec_get() and TIME_UTC. However, FreeBSD11 announce C11 compliance, but does not provifr timespec_get(), breaking link stage for benchfn. Since it does not provide TIME_UTC either, which is also required by C11, test this macro: this will automatically rule out FreeBSD 11 for this code path (it will use the backup C90 path instead, based on clock_t). The issue seeems fixed in FreeBSD 12.
2019-04-10 22:22:18 +00:00
typedef struct timespec UTIL_time_t;
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
#define UTIL_TIME_INITIALIZER { 0, 0 }
tried a blindfix for unix + c11
2019-04-10 20:26:27 +00:00
#else /* relies on standard C90 (note : clock_t measurements can be wrong when using multi-threading) */
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
typedef clock_t UTIL_time_t;
#define UTIL_TIME_INITIALIZER 0
#endif
tried a blindfix for unix + c11
2019-04-10 20:26:27 +00:00
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
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);
tried a blindfix for unix + c11
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#define SEC_TO_MICRO ((PTime)1000000)
benchfn dependencies reduced to only timefn benchfn used to rely on mem.h, and util, which in turn relied on platform.h. Using benchfn outside of zstd required to bring all these dependencies. Now, dependency is reduced to timefn only. This required to create a separate timefn from util, and rewrite benchfn and timefn to no longer need mem.h. Separating timefn from util has a wide effect accross the code base, as usage of time functions is widespread. A lot of build scripts had to be updated to also include timefn.
2019-04-10 19:37:03 +00:00
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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