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 12:37:03 -07:00
parent 094c000904
commit 59a7116cc2
21 changed files with 825 additions and 635 deletions
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2016-present, 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 <sys/types.h>    /* utime */
+#if defined(_MSC_VER)
+#  include <sys/utime.h>  /* utime */
+#else
+#  include <utime.h>      /* utime */
+#endif
+#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>
+  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 */
+
+    #define UTIL_TIME_INITIALIZER { { 0, 0 } }
+    typedef LARGE_INTEGER UTIL_time_t;
+
+#elif defined(__APPLE__) && defined(__MACH__)
+
+    #include <mach/mach_time.h>
+    #define UTIL_TIME_INITIALIZER 0
+    typedef PTime UTIL_time_t;
+
+#elif (PLATFORM_POSIX_VERSION >= 200112L) \
+   && (defined(__UCLIBC__)                \
+      || (defined(__GLIBC__)              \
+          && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 17) \
+             || (__GLIBC__ > 2))))
+
+    #define UTIL_TIME_INITIALIZER { 0, 0 }
+    typedef struct timespec UTIL_freq_t;
+    typedef struct timespec UTIL_time_t;
+
+    UTIL_time_t UTIL_getSpanTime(UTIL_time_t begin, UTIL_time_t end);
+
+#else   /* relies on standard C (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 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 */