/**
* collectd - src/utils_time.c
- * Copyright (C) 2010 Florian octo Forster
+ * Copyright (C) 2010-2015 Florian octo Forster
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Florian octo Forster <ff at octo.it>
+ * Florian octo Forster <octo at collectd.org>
**/
#include "collectd.h"
#include "plugin.h"
#include "common.h"
-#if HAVE_CLOCK_GETTIME
+#ifndef DEFAULT_MOCK_TIME
+# define DEFAULT_MOCK_TIME 1542455354518929408ULL
+#endif
+
+#ifdef MOCK_TIME
+cdtime_t cdtime_mock = (cdtime_t) MOCK_TIME;
+
+cdtime_t cdtime (void)
+{
+ return cdtime_mock;
+}
+#else /* !MOCK_TIME */
+# if HAVE_CLOCK_GETTIME
cdtime_t cdtime (void) /* {{{ */
{
int status;
return (TIMESPEC_TO_CDTIME_T (&ts));
} /* }}} cdtime_t cdtime */
-#else
+# else /* !HAVE_CLOCK_GETTIME */
/* Work around for Mac OS X which doesn't have clock_gettime(2). *sigh* */
cdtime_t cdtime (void) /* {{{ */
{
return (TIMEVAL_TO_CDTIME_T (&tv));
} /* }}} cdtime_t cdtime */
+# endif
#endif
-size_t cdtime_to_iso8601 (char *s, size_t max, cdtime_t t) /* {{{ */
+/* format_zone reads time zone information from "extern long timezone", exported
+ * by <time.h>, and formats it according to RFC 3339. This differs from
+ * strftime()'s "%z" format by including a colon between hour and minute. */
+static int format_zone (char *buffer, size_t buffer_size, struct tm const *tm) /* {{{ */
+{
+ char tmp[7];
+ size_t sz;
+
+ if ((buffer == NULL) || (buffer_size < 7))
+ return EINVAL;
+
+ sz = strftime (tmp, sizeof (tmp), "%z", tm);
+ if (sz == 0)
+ return ENOMEM;
+ if (sz != 5)
+ {
+ DEBUG ("format_zone: strftime(\"%%z\") = \"%s\", want \"+hhmm\"", tmp);
+ sstrncpy (buffer, tmp, buffer_size);
+ return 0;
+ }
+
+ buffer[0] = tmp[0];
+ buffer[1] = tmp[1];
+ buffer[2] = tmp[2];
+ buffer[3] = ':';
+ buffer[4] = tmp[3];
+ buffer[5] = tmp[4];
+ buffer[6] = 0;
+
+ return 0;
+} /* }}} int format_zone */
+
+static int format_rfc3339 (char *buffer, size_t buffer_size, cdtime_t t, _Bool print_nano) /* {{{ */
{
struct timespec t_spec;
struct tm t_tm;
-
+ char base[20]; /* 2006-01-02T15:04:05 */
+ char nano[11]; /* .999999999 */
+ char zone[7]; /* +00:00 */
+ char *fields[] = {base, nano, zone};
size_t len;
+ int status;
CDTIME_T_TO_TIMESPEC (t, &t_spec);
NORMALIZE_TIMESPEC (t_spec);
- if (localtime_r ((time_t *)&t_spec.tv_sec, &t_tm) == NULL) {
+ if (localtime_r (&t_spec.tv_sec, &t_tm) == NULL) {
char errbuf[1024];
- ERROR ("cdtime_to_iso8601: localtime_r failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (0);
+ status = errno;
+ ERROR ("format_rfc3339: localtime_r failed: %s",
+ sstrerror (status, errbuf, sizeof (errbuf)));
+ return (status);
}
- len = strftime (s, max, "%Y-%m-%dT%H:%M:%S", &t_tm);
+ len = strftime (base, sizeof (base), "%Y-%m-%dT%H:%M:%S", &t_tm);
if (len == 0)
- return 0;
+ return ENOMEM;
- if (max - len > 2) {
- int n = snprintf (s + len, max - len, ".%09i", (int)t_spec.tv_nsec);
- len += (n < max - len) ? n : max - len;
- }
+ if (print_nano)
+ ssnprintf (nano, sizeof (nano), ".%09ld", (long) t_spec.tv_nsec);
+ else
+ sstrncpy (nano, "", sizeof (nano));
- if (max - len > 3) {
- int n = strftime (s + len, max - len, "%z", &t_tm);
- len += (n < max - len) ? n : max - len;
- }
+ status = format_zone (zone, sizeof (zone), &t_tm);
+ if (status != 0)
+ return status;
+
+ if (strjoin (buffer, buffer_size, fields, STATIC_ARRAY_SIZE (fields), "") < 0)
+ return ENOMEM;
+ return 0;
+} /* }}} int format_rfc3339 */
+
+int rfc3339 (char *buffer, size_t buffer_size, cdtime_t t) /* {{{ */
+{
+ if (buffer_size < RFC3339_SIZE)
+ return ENOMEM;
+
+ return format_rfc3339 (buffer, buffer_size, t, 0);
+} /* }}} size_t cdtime_to_rfc3339 */
+
+int rfc3339nano (char *buffer, size_t buffer_size, cdtime_t t) /* {{{ */
+{
+ if (buffer_size < RFC3339NANO_SIZE)
+ return ENOMEM;
- s[max - 1] = '\0';
- return len;
-} /* }}} size_t cdtime_to_iso8601 */
+ return format_rfc3339 (buffer, buffer_size, t, 1);
+} /* }}} size_t cdtime_to_rfc3339nano */
/* vim: set sw=2 sts=2 et fdm=marker : */