X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Ftime.h;h=dc3f7634223ed8c79810c7f3c98cd117864a8f27;hb=3afa94aeca5a0daae40fd7b6cc96b7e4c150c7d8;hp=24513d30bff11618deeeaa74de2c86974f2d5d5f;hpb=03ab1b42f4cd0df99e8ee93c35b8c371d4385225;p=lttng-tools.git

diff --git a/src/common/time.h b/src/common/time.h
index 24513d30b..dc3f76342 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
@@ -22,6 +11,11 @@
 #include <time.h>
 #include <stdbool.h>
 #include <common/macros.h>
+#include <common/compat/time.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
 
 #define MSEC_PER_SEC    1000ULL
 #define NSEC_PER_SEC    1000000000ULL
@@ -36,7 +30,9 @@
 #define USEC_PER_MINUTE (USEC_PER_SEC * SEC_PER_MINUTE)
 #define USEC_PER_HOURS  (USEC_PER_MINUTE * MINUTE_PER_HOUR)
 
-LTTNG_HIDDEN
+#define ISO8601_STR_LEN sizeof("YYYYmmddTHHMMSS+HHMM")
+#define DATETIME_STR_LEN sizeof("YYYYmmdd-HHMMSS")
+
 bool locale_supports_utf8(void);
 
 #define NSEC_UNIT       "ns"
@@ -52,13 +48,26 @@ 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.
+ */
+int time_to_iso8601_str(time_t time, char *str, size_t len);
+
+int time_to_datetime_str(time_t time, char *str, size_t len);
+
+#if defined(__cplusplus)
+}
+#endif
+
 #endif /* LTTNG_TIME_H */