X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Ftime.h;h=4cfdf856c521d155fe55dd7580d5180605097119;hb=ee5b998f96be26a66976fd8afbe712e1ff43f411;hp=bb0991de68f19f8667c3e2f10f8cac60cf78b474;hpb=81684730b3134c61ca310bf26733c01d783103d7;p=lttng-tools.git

diff --git a/src/common/time.h b/src/common/time.h
index bb0991de6..4cfdf856c 100644
--- a/src/common/time.h
+++ b/src/common/time.h
@@ -21,6 +21,8 @@
 
 #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
@@ -35,6 +37,9 @@
 #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"
@@ -50,11 +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 */