#include <common/time.h>
#include <common/macros.h>
+#include <common/error.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)
res.tv_nsec = diff % (uint64_t) NSEC_PER_SEC;
return res;
}
+
+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;
+ }
+}
+
+LTTNG_HIDDEN
+int time_to_iso8601_str(time_t time, char *str, size_t len)
+{
+ int ret = 0;
+ struct tm *tm_result;
+ struct tm tm_storage;
+ size_t strf_ret;
+
+ if (len < ISO8601_STR_LEN) {
+ ERR("Buffer too short to format ISO 8601 timestamp: %zu bytes provided when at least %zu are needed",
+ len, ISO8601_STR_LEN);
+ ret = -1;
+ goto end;
+ }
+
+ tm_result = localtime_r(&time, &tm_storage);
+ if (!tm_result) {
+ ret = -1;
+ PERROR("Failed to break down timestamp to tm structure");
+ goto end;
+ }
+
+ strf_ret = strftime(str, len, "%Y%m%dT%H%M%S%z", tm_result);
+ if (strf_ret == 0) {
+ ret = -1;
+ ERR("Failed to format timestamp as local time");
+ goto end;
+ }
+end:
+ return ret;
+}