X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fcommon%2Ftime.c;h=387db3e3273224ff7f0837f02725ce36bfc92976;hb=a113ee0dd7fdba285a379289d47351f6e39c51db;hp=5c5594584dc6ae37c59ab44625ca7ad9b8c9534d;hpb=507f56949c928c084e647fa88498b823aeab585d;p=lttng-tools.git

diff --git a/src/common/time.c b/src/common/time.c
index 5c5594584..387db3e32 100644
--- a/src/common/time.c
+++ b/src/common/time.c
@@ -16,12 +16,23 @@
  */
 
 #include <common/time.h>
+#include <common/error.h>
 #include <common/macros.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <limits.h>
 #include <errno.h>
 #include <pthread.h>
+#include <locale.h>
+#include <string.h>
+
+static bool utf8_output_supported;
+
+LTTNG_HIDDEN
+bool locale_supports_utf8(void)
+{
+	return utf8_output_supported;
+}
 
 LTTNG_HIDDEN
 int timespec_to_ms(struct timespec ts, unsigned long *ms)
@@ -57,3 +68,47 @@ struct timespec timespec_abs_diff(struct timespec t1, struct timespec t2)
 	res.tv_nsec = diff % (uint64_t) NSEC_PER_SEC;
 	return res;
 }
+
+LTTNG_HIDDEN
+int time_t_to_ISO8601(char *dest, size_t dest_size, time_t time)
+{
+	int ret;
+	struct tm tm, *timeinfo;
+
+	if (dest_size < ISO8601_LEN) {
+		ERR("Failed to format time to ISO8601 destination too small");
+		ret = -1;
+		goto end;
+	}
+
+	timeinfo = localtime_r(&time, &tm);
+	if (!timeinfo) {
+		PERROR("localtime");
+		ret = -1;
+		goto end;
+	}
+
+	ret = strftime(dest, dest_size, ISO8601_FORMAT, timeinfo);
+	if (ret == 0) {
+		ERR("Failed to format time to ISO8601");
+		ret = -1;
+		goto end;
+	}
+
+	ret = 0;
+end:
+	return ret;
+}
+
+static
+void __attribute__((constructor)) init_locale_utf8_support(void)
+{
+	const char *program_locale = setlocale(LC_ALL, NULL);
+	const char *lang = getenv("LANG");
+
+	if (program_locale && strstr(program_locale, "utf8")) {
+		utf8_output_supported = true;
+	} else if (lang && strstr(lang, "utf8")) {
+		utf8_output_supported = true;
+	}
+}