X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ftime.h;h=b07adc85bb1b4521188080a2b7221160718c944f;hp=894ab9259a135a3f7816d74e3475d268ec328b13;hb=ce0b1d61919f37517a6212f7af2afe0fa1b1dcb0;hpb=2a1135fa25ad1fcad3b395e795aa6d41afc90c54

diff --git a/src/common/time.h b/src/common/time.h
index 894ab9259..b07adc85b 100644
--- a/src/common/time.h
+++ b/src/common/time.h
@@ -1,19 +1,8 @@
 /*
- * Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This library 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.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
  *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
 #ifndef LTTNG_TIME_H
@@ -21,12 +10,26 @@
 
 #include <time.h>
 #include <stdbool.h>
+#include <common/macros.h>
+#include <common/compat/time.h>
+
+#define MSEC_PER_SEC    1000ULL
+#define NSEC_PER_SEC    1000000000ULL
+#define NSEC_PER_MSEC   1000000ULL
+#define NSEC_PER_USEC   1000ULL
+#define USEC_PER_SEC    1000000ULL
+#define USEC_PER_MSEC   1000ULL
+
+#define SEC_PER_MINUTE  60ULL
+#define MINUTE_PER_HOUR 60ULL
 
-#define MSEC_PER_SEC	1000ULL
-#define NSEC_PER_SEC	1000000000ULL
-#define NSEC_PER_MSEC	1000000ULL
-#define NSEC_PER_USEC	1000ULL
+#define USEC_PER_MINUTE (USEC_PER_SEC * SEC_PER_MINUTE)
+#define USEC_PER_HOURS  (USEC_PER_MINUTE * MINUTE_PER_HOUR)
 
+#define ISO8601_STR_LEN sizeof("YYYYmmddTHHMMSS+HHMM")
+#define DATETIME_STR_LEN sizeof("YYYYmmdd-HHMMSS")
+
+LTTNG_HIDDEN
 bool locale_supports_utf8(void);
 
 #define NSEC_UNIT       "ns"
@@ -42,11 +45,26 @@ bool locale_supports_utf8(void);
  * Returns 0 on success, else -1 on error. errno is set to EOVERFLOW if
  * input would overflow the output in milliseconds.
  */
+LTTNG_HIDDEN
 int timespec_to_ms(struct timespec ts, unsigned long *ms);
 
 /*
  * timespec_abs_diff: Absolute difference between timespec.
  */
+LTTNG_HIDDEN
 struct timespec timespec_abs_diff(struct timespec ts_a, struct timespec ts_b);
 
+/*
+ * Format a Unix timestamp to an ISO 8601 compatible timestamp of
+ * the form "YYYYmmddTHHMMSS+HHMM" in local time. `len` must >= to
+ * ISO8601_STR_LEN.
+ *
+ * Returns 0 on success, else -1 on error.
+ */
+LTTNG_HIDDEN
+int time_to_iso8601_str(time_t time, char *str, size_t len);
+
+LTTNG_HIDDEN
+int time_to_datetime_str(time_t time, char *str, size_t len);
+
 #endif /* LTTNG_TIME_H */