X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ftime.h;h=4cfdf856c521d155fe55dd7580d5180605097119;hp=894ab9259a135a3f7816d74e3475d268ec328b13;hb=8e1ef46e89a86865736a62d2def88f70acb0be55;hpb=2a1135fa25ad1fcad3b395e795aa6d41afc90c54

diff --git a/src/common/time.h b/src/common/time.h
index 894ab9259..4cfdf856c 100644
--- a/src/common/time.h
+++ b/src/common/time.h
@@ -21,12 +21,25 @@
 
 #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 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 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")
+
+LTTNG_HIDDEN
 bool locale_supports_utf8(void);
 
 #define NSEC_UNIT       "ns"
@@ -42,11 +55,23 @@ 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);
+
 #endif /* LTTNG_TIME_H */