Adding upstream version 2.39.3.upstream/2.39.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/include/timeutils.h b/include/timeutils.h
new file mode 100644
index 0000000..a195df8
--- /dev/null
+++ b/include/timeutils.h
@@ -0,0 +1,105 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * First set of functions in this file are part of systemd, and were
+ * copied to util-linux at August 2013.
+ *
+ * Copyright 2010 Lennart Poettering
+ * Copyright (C) 2014 Karel Zak <kzak@redhat.com>
+ *
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation; either version 2.1 of the License, or (at your option)
+ * any later version.
+ */
+#ifndef UTIL_LINUX_TIME_UTIL_H
+#define UTIL_LINUX_TIME_UTIL_H
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <sys/time.h>
+
+typedef uint64_t usec_t;
+typedef uint64_t nsec_t;
+
+#define MSEC_PER_SEC  1000ULL
+#define USEC_PER_SEC  1000000ULL
+#define USEC_PER_MSEC 1000ULL
+#define NSEC_PER_SEC  1000000000ULL
+#define NSEC_PER_MSEC 1000000ULL
+#define NSEC_PER_USEC 1000ULL
+
+#define USEC_PER_MINUTE	(60ULL*USEC_PER_SEC)
+#define NSEC_PER_MINUTE	(60ULL*NSEC_PER_SEC)
+#define USEC_PER_HOUR	(60ULL*USEC_PER_MINUTE)
+#define NSEC_PER_HOUR	(60ULL*NSEC_PER_MINUTE)
+#define USEC_PER_DAY	(24ULL*USEC_PER_HOUR)
+#define NSEC_PER_DAY	(24ULL*NSEC_PER_HOUR)
+#define USEC_PER_WEEK	(7ULL*USEC_PER_DAY)
+#define NSEC_PER_WEEK	(7ULL*NSEC_PER_DAY)
+#define USEC_PER_MONTH	(2629800ULL*USEC_PER_SEC)
+#define NSEC_PER_MONTH	(2629800ULL*NSEC_PER_SEC)
+#define USEC_PER_YEAR	(31557600ULL*USEC_PER_SEC)
+#define NSEC_PER_YEAR	(31557600ULL*NSEC_PER_SEC)
+
+#define FORMAT_TIMESTAMP_MAX ((4*4+1)+11+9+4+1)	/* weekdays can be unicode */
+#define FORMAT_TIMESTAMP_RELATIVE_MAX 256
+#define FORMAT_TIMESPAN_MAX 64
+
+int parse_timestamp(const char *t, usec_t *usec);
+int get_gmtoff(const struct tm *tp);
+
+/* flags and masks for strxxx_iso() functions */
+enum {
+	ISO_DATE		= (1 << 0),
+	ISO_TIME		= (1 << 1),
+	ISO_TIMEZONE		= (1 << 2),
+	ISO_DOTUSEC		= (1 << 3),
+	ISO_COMMAUSEC		= (1 << 4),
+	ISO_T			= (1 << 5),
+	ISO_GMTIME		= (1 << 6),
+	ISO_TIMESTAMP		= ISO_DATE | ISO_TIME | ISO_TIMEZONE,
+	ISO_TIMESTAMP_T		= ISO_TIMESTAMP | ISO_T,
+	ISO_TIMESTAMP_DOT	= ISO_TIMESTAMP | ISO_DOTUSEC,
+	ISO_TIMESTAMP_DOT_T	= ISO_TIMESTAMP_DOT | ISO_T,
+	ISO_TIMESTAMP_COMMA	= ISO_TIMESTAMP | ISO_COMMAUSEC,
+	ISO_TIMESTAMP_COMMA_T	= ISO_TIMESTAMP_COMMA | ISO_T,
+	ISO_TIMESTAMP_COMMA_G	= ISO_TIMESTAMP_COMMA | ISO_GMTIME,
+	ISO_TIMESTAMP_COMMA_GT  = ISO_TIMESTAMP_COMMA_G | ISO_T
+};
+
+#define CTIME_BUFSIZ	26
+#define ISO_BUFSIZ	42
+
+int strtimeval_iso(struct timeval *tv, int flags, char *buf, size_t bufsz);
+int strtm_iso(struct tm *tm, int flags, char *buf, size_t bufsz);
+int strtime_iso(const time_t *t, int flags, char *buf, size_t bufsz);
+
+#define UL_SHORTTIME_THISYEAR_HHMM (1 << 1)
+
+int strtime_short(const time_t *t, struct timeval *now, int flags, char *buf, size_t bufsz);
+
+#ifndef HAVE_TIMEGM
+extern time_t timegm(struct tm *tm);
+#endif
+
+static inline usec_t timeval_to_usec(const struct timeval *t)
+{
+	return t->tv_sec * USEC_PER_SEC + t->tv_usec;
+}
+
+static inline usec_t timespec_to_usec(const struct timespec *t)
+{
+	return t->tv_sec * USEC_PER_SEC + t->tv_nsec / NSEC_PER_USEC;
+}
+
+static inline struct timeval usec_to_timeval(usec_t t)
+{
+	struct timeval r = {
+		.tv_sec = t / USEC_PER_SEC,
+		.tv_usec = t % USEC_PER_SEC,
+	};
+	return r;
+}
+
+#endif /* UTIL_LINUX_TIME_UTIL_H */