From: Igor Peshansky Date: Thu, 15 Sep 2016 15:08:44 +0000 (-0400) Subject: Address review comments: X-Git-Tag: collectd-5.7.0~77^2~3 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=e2cb258c7b6ce456f4119fd1454c85b479fa3e2d;p=collectd.git Address review comments: - Repurpose rfc3339/rfc3339nano to use UTC. - Add rfc3339_local/rfc3339nano_local for local time. - Factor out common bits; saner helper functions. - Update comments. --- diff --git a/src/daemon/utils_time.c b/src/daemon/utils_time.c index af51d037..36ee8f2a 100644 --- a/src/daemon/utils_time.c +++ b/src/daemon/utils_time.c @@ -54,10 +54,10 @@ cdtime_t cdtime (void) /* {{{ */ char errbuf[1024]; ERROR ("cdtime: clock_gettime failed: %s", sstrerror (errno, errbuf, sizeof (errbuf))); - return (0); + return 0; } - return (TIMESPEC_TO_CDTIME_T (&ts)); + return TIMESPEC_TO_CDTIME_T (&ts); } /* }}} cdtime_t cdtime */ # else /* !HAVE_CLOCK_GETTIME */ /* Work around for Mac OS X which doesn't have clock_gettime(2). *sigh* */ @@ -72,26 +72,78 @@ cdtime_t cdtime (void) /* {{{ */ char errbuf[1024]; ERROR ("cdtime: gettimeofday failed: %s", sstrerror (errno, errbuf, sizeof (errbuf))); - return (0); + return 0; } - return (TIMEVAL_TO_CDTIME_T (&tv)); + return TIMEVAL_TO_CDTIME_T (&tv); } /* }}} cdtime_t cdtime */ # endif #endif +/********************************************************************** + Time retrieval functions +***********************************************************************/ + +static int get_utc_time (cdtime_t t, struct tm *t_tm, long *nsec) /* {{{ */ +{ + struct timespec t_spec; + int status; + + CDTIME_T_TO_TIMESPEC (t, &t_spec); + NORMALIZE_TIMESPEC (t_spec); + + if (gmtime_r (&t_spec.tv_sec, t_tm) == NULL) { + char errbuf[1024]; + status = errno; + ERROR ("get_utc_time: gmtime_r failed: %s", + sstrerror (status, errbuf, sizeof (errbuf))); + return status; + } + + *nsec = t_spec.tv_nsec; + return 0; +} /* }}} int get_utc_time */ + +static int get_local_time (cdtime_t t, struct tm *t_tm, long *nsec) /* {{{ */ +{ + struct timespec t_spec; + int status; + + CDTIME_T_TO_TIMESPEC (t, &t_spec); + NORMALIZE_TIMESPEC (t_spec); + + if (localtime_r (&t_spec.tv_sec, t_tm) == NULL) { + char errbuf[1024]; + status = errno; + ERROR ("get_local_time: localtime_r failed: %s", + sstrerror (status, errbuf, sizeof (errbuf))); + return status; + } + + *nsec = t_spec.tv_nsec; + return 0; +} /* }}} int get_local_time */ + +/********************************************************************** + Formatting functions +***********************************************************************/ + +static const char utc_zone[] = "+00:00"; +static const char zulu_zone[] = "Z"; + /* format_zone reads time zone information from "extern long timezone", exported * by , 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) /* {{{ */ +static int format_zone (char *buffer, size_t buffer_size) /* {{{ */ { + struct tm t_tm = { 0 }; /* The value doesn't matter. */ char tmp[7]; size_t sz; if ((buffer == NULL) || (buffer_size < 7)) return EINVAL; - sz = strftime (tmp, sizeof (tmp), "%z", tm); + sz = strftime (tmp, sizeof (tmp), "%z", &t_tm); if (sz == 0) return ENOMEM; if (sz != 5) @@ -112,91 +164,106 @@ static int format_zone (char *buffer, size_t buffer_size, struct tm const *tm) / return 0; } /* }}} int format_zone */ -static int format_rfc3339 (char *buffer, size_t buffer_size, cdtime_t t, _Bool print_nano, _Bool zulu) /* {{{ */ +int format_rfc3339 (char *buffer, size_t buffer_size, struct tm const *t_tm, long nsec, _Bool print_nano, char const *zone) /* {{{ */ { - 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); + int len; + char *pos = buffer; + size_t size_left = buffer_size; - if (zulu) { - if (gmtime_r (&t_spec.tv_sec, &t_tm) == NULL) { - char errbuf[1024]; - status = errno; - ERROR ("format_rfc3339: gmtime_r failed: %s", - sstrerror (status, errbuf, sizeof (errbuf))); - return (status); - } - } else { - if (localtime_r (&t_spec.tv_sec, &t_tm) == NULL) { - char errbuf[1024]; - status = errno; - ERROR ("format_rfc3339: localtime_r failed: %s", - sstrerror (status, errbuf, sizeof (errbuf))); - return (status); - } - } - - len = strftime (base, sizeof (base), "%Y-%m-%dT%H:%M:%S", &t_tm); - if (len == 0) + if ((len = strftime (pos, size_left, "%Y-%m-%dT%H:%M:%S", t_tm)) == 0) return ENOMEM; + pos += len; + size_left -= len; - if (print_nano) - ssnprintf (nano, sizeof (nano), ".%09ld", (long) t_spec.tv_nsec); - else - sstrncpy (nano, "", sizeof (nano)); - - if (zulu) { - zone[0] = 'Z'; - zone[1] = 0; - } else { - status = format_zone (zone, sizeof (zone), &t_tm); - if (status != 0) - return status; + if (print_nano) { + if ((len = ssnprintf (pos, size_left, ".%09ld", nsec)) == 0) + return ENOMEM; + pos += len; + size_left -= len; } - if (strjoin (buffer, buffer_size, fields, STATIC_ARRAY_SIZE (fields), "") < 0) - return ENOMEM; + sstrncpy (buffer, zone, buffer_size); return 0; } /* }}} int format_rfc3339 */ +int format_rfc3339_utc (char *buffer, size_t buffer_size, cdtime_t t, _Bool print_nano, char const *zone) /* {{{ */ +{ + struct tm t_tm; + long nsec; + int status; + + if ((status = get_utc_time (t, &t_tm, &nsec)) != 0) + return status; /* The error should have already be reported. */ + + return format_rfc3339 (buffer, buffer_size, &t_tm, nsec, print_nano, zone); +} /* }}} int format_rfc3339_utc */ + +int format_rfc3339_local (char *buffer, size_t buffer_size, cdtime_t t, _Bool print_nano) /* {{{ */ +{ + struct tm t_tm; + long nsec; + int status; + char zone[7]; /* +00:00 */ + + if ((status = get_local_time (t, &t_tm, &nsec)) != 0) + return status; /* The error should have already be reported. */ + + if ((status = format_zone (zone, sizeof (zone))) != 0) + return status; + + return format_rfc3339 (buffer, buffer_size, &t_tm, nsec, print_nano, zone); +} /* }}} int format_rfc3339_local */ + +/********************************************************************** + Public functions +***********************************************************************/ + 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, 0); -} /* }}} size_t cdtime_to_rfc3339 */ + return format_rfc3339_utc (buffer, buffer_size, t, 0, utc_zone); +} /* }}} int rfc3339 */ int rfc3339nano (char *buffer, size_t buffer_size, cdtime_t t) /* {{{ */ { if (buffer_size < RFC3339NANO_SIZE) return ENOMEM; - return format_rfc3339 (buffer, buffer_size, t, 1, 0); -} /* }}} size_t cdtime_to_rfc3339nano */ + return format_rfc3339_utc (buffer, buffer_size, t, 1, utc_zone); +} /* }}} int rfc3339nano */ int rfc3339_zulu (char *buffer, size_t buffer_size, cdtime_t t) /* {{{ */ { if (buffer_size < RFC3339_ZULU_SIZE) return ENOMEM; - return format_rfc3339 (buffer, buffer_size, t, 0, 1); -} /* }}} size_t cdtime_to_rfc3339 */ + return format_rfc3339_utc (buffer, buffer_size, t, 0, zulu_zone); +} /* }}} int rfc3339_zulu */ int rfc3339nano_zulu (char *buffer, size_t buffer_size, cdtime_t t) /* {{{ */ { if (buffer_size < RFC3339NANO_ZULU_SIZE) return ENOMEM; - return format_rfc3339 (buffer, buffer_size, t, 1, 1); -} /* }}} size_t cdtime_to_rfc3339nano */ + return format_rfc3339_utc (buffer, buffer_size, t, 1, zulu_zone); +} /* }}} int rfc3339nano_zulu */ + +int rfc3339_local (char *buffer, size_t buffer_size, cdtime_t t) /* {{{ */ +{ + if (buffer_size < RFC3339_SIZE) + return ENOMEM; + + return format_rfc3339_local (buffer, buffer_size, t, 0); +} /* }}} int rfc3339 */ + +int rfc3339nano_local (char *buffer, size_t buffer_size, cdtime_t t) /* {{{ */ +{ + if (buffer_size < RFC3339NANO_SIZE) + return ENOMEM; + + return format_rfc3339_local (buffer, buffer_size, t, 1); +} /* }}} int rfc3339nano */ /* vim: set sw=2 sts=2 et fdm=marker : */ diff --git a/src/daemon/utils_time.h b/src/daemon/utils_time.h index 29db9d24..5456dcc1 100644 --- a/src/daemon/utils_time.h +++ b/src/daemon/utils_time.h @@ -82,26 +82,35 @@ extern cdtime_t cdtime_mock; cdtime_t cdtime (void); -#define RFC3339_SIZE 26 -#define RFC3339NANO_SIZE 36 +#define RFC3339_SIZE 26 /* 2006-01-02T15:04:05+00:00 */ +#define RFC3339NANO_SIZE 36 /* 2006-01-02T15:04:05.999999999+00:00 */ -#define RFC3339_ZULU_SIZE 21 -#define RFC3339NANO_ZULU_SIZE 31 +#define RFC3339_ZULU_SIZE 21 /* 2006-01-02T15:04:05Z */ +#define RFC3339NANO_ZULU_SIZE 31 /* 2006-01-02T15:04:05.999999999Z */ -/* rfc3339 formats a cdtime_t time in RFC 3339 format with second precision. */ +/* rfc3339 formats a cdtime_t time as UTC in RFC 3339 format with second + * precision. */ int rfc3339 (char *buffer, size_t buffer_size, cdtime_t t); -/* rfc3339nano formats a cdtime_t time in RFC 3339 format with nanosecond - * precision. */ +/* rfc3339nano formats a cdtime_t as UTC time in RFC 3339 format with + * nanosecond precision. */ int rfc3339nano (char *buffer, size_t buffer_size, cdtime_t t); -/* rfc3339 formats a cdtime_t time in RFC 3339 zulu format with second +/* rfc3339 formats a cdtime_t time as UTC in RFC 3339 zulu format with second * precision. */ int rfc3339_zulu (char *buffer, size_t buffer_size, cdtime_t t); -/* rfc3339nano formats a cdtime_t time in RFC 3339 zulu format with nanosecond - * precision. */ +/* rfc3339nano formats a cdtime_t time as UTC in RFC 3339 zulu format with + * nanosecond precision. */ int rfc3339nano_zulu (char *buffer, size_t buffer_size, cdtime_t t); +/* rfc3339 formats a cdtime_t time as local in RFC 3339 format with second + * precision. */ +int rfc3339_local (char *buffer, size_t buffer_size, cdtime_t t); + +/* rfc3339nano formats a cdtime_t time as local in RFC 3339 format with + * nanosecond precision. */ +int rfc3339nano_local (char *buffer, size_t buffer_size, cdtime_t t); + #endif /* UTILS_TIME_H */ /* vim: set sw=2 sts=2 et : */ diff --git a/src/postgresql.c b/src/postgresql.c index 084eae45..c92f6ee1 100644 --- a/src/postgresql.c +++ b/src/postgresql.c @@ -833,6 +833,7 @@ static int c_psql_write (const data_set_t *ds, const value_list_t *vl, assert (db->database != NULL); assert (db->writers != NULL); + /* TODO: Should this be rfc3339nano_local()? */ if (rfc3339nano (time_str, sizeof (time_str), vl->time) != 0) { log_err ("c_psql_write: Failed to convert time to RFC 3339 format"); return -1;