#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)
#define intervals_1601_to_1970 (years_1601_to_1970 * intervals_per_year \
+ leap_years_1601_to_1970 * intervals_per_day)
-static inline u64 unix_timestamp_to_ms(time_t t)
+static inline u64
+unix_timestamp_to_wim(time_t t)
{
return (u64)intervals_1601_to_1970 + t * intervals_per_second;
}
-/*
- * Returns the number of 100-nanosecond intervals that have elapsed since
- * 12:00 A.M., January 1, 1601 UTC.
- */
-static inline u64 get_timestamp()
-{
- return unix_timestamp_to_ms(time(NULL));
-}
/* 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