1 files changed, 85 insertions, 0 deletions
diff --git a/src/zstd/programs/timefn.h b/src/zstd/programs/timefn.h
new file mode 100644
index 000000000..eb3c13093
--- /dev/null
+++ b/src/zstd/programs/timefn.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2016-2020, 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 */) )
+# 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 */
+
+    #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 */