X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Ftimestamp.h;h=91006fc0ac849f8f3274822714551f6a392ecb4c;hb=13c6ce3160fce7c40008d1d182325c8b42450d1e;hp=819047d45e3648b392ff0afd5a2e8f1a1d2c0679;hpb=885632f08c75c1d7bb5d25436231c78f6ad7e0c0;p=wimlib

diff --git a/src/timestamp.h b/src/timestamp.h
index 819047d4..91006fc0 100644
--- a/src/timestamp.h
+++ b/src/timestamp.h
@@ -2,9 +2,13 @@
 #define _WIMLIB_TIMESTAMP_H
 
 #include "util.h"
+#include <sys/types.h>
+#include <sys/time.h>
 #include <time.h>
 
 #define intervals_per_second (1000000000ULL / 100ULL)
+#define intervals_per_microsecond (10)
+#define nanoseconds_per_interval (100)
 #define days_per_year (365ULL)
 #define seconds_per_day (3600ULL * 24ULL)
 #define intervals_per_day (seconds_per_day * intervals_per_second)
@@ -14,20 +18,60 @@
 #define intervals_1601_to_1970 (years_1601_to_1970 * intervals_per_year \
 				+ leap_years_1601_to_1970 * intervals_per_day)
 
-/* 
- * Returns the number of 100-nanosecond intervals that have elapsed since
- * 12:00 A.M., January 1, 1601 UTC.
- */
-static inline u64 get_timestamp()
+static inline u64
+unix_timestamp_to_wim(time_t t)
 {
-	return (u64)intervals_1601_to_1970 + (u64)time(NULL) * intervals_per_second;
+	return (u64)intervals_1601_to_1970 + t * intervals_per_second;
 }
 
 /* Converts a timestamp as used in the WIM file to a UNIX timestamp as used in
  * the time() function. */
-static inline time_t ms_timestamp_to_unix(u64 timestamp)
+static inline time_t
+wim_timestamp_to_unix(u64 timestamp)
 {
 	return (timestamp - intervals_1601_to_1970) / intervals_per_second;
 }
 
+static inline u64
+timeval_to_wim_timestamp(const struct timeval tv)
+{
+	return intervals_1601_to_1970
+	       + (u64)tv.tv_sec * intervals_per_second
+	       + (u64)tv.tv_usec * intervals_per_microsecond;
+}
+
+static inline struct timeval
+wim_timestamp_to_timeval(u64 timestamp)
+{
+	struct timeval tv;
+	tv.tv_sec = (timestamp - intervals_1601_to_1970) / intervals_per_second;
+	tv.tv_usec = ((timestamp - intervals_1601_to_1970) /
+			intervals_per_microsecond) % 1000000;
+	return tv;
+}
+
+static inline u64
+timespec_to_wim_timestamp(const struct timespec ts)
+{
+	return intervals_1601_to_1970
+	       + (u64)ts.tv_sec * intervals_per_second
+	       + (u64)ts.tv_nsec / nanoseconds_per_interval;
+}
+
+static inline struct timespec
+wim_timestamp_to_timespec(u64 timestamp)
+{
+	struct timespec ts;
+	ts.tv_sec = (timestamp - intervals_1601_to_1970) / intervals_per_second;
+	ts.tv_nsec = ((timestamp - intervals_1601_to_1970) % intervals_per_second) *
+			nanoseconds_per_interval;
+	return ts;
+}
+
+extern u64
+get_wim_timestamp();
+
+extern void
+wim_timestamp_to_str(u64 timestamp, tchar *buf, size_t len);
+
 #endif