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Print human readable timestamp string #216

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Print human readable timestamp string #216

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25 changes: 22 additions & 3 deletions format.c
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@

#include "kafkacat.h"
#include "rdendian.h"
#include <time.h>

static void fmt_add (fmt_type_t type, const char *str, int len) {
if (conf.fmt_cnt == KC_FMT_MAX_SIZE)
Expand Down Expand Up @@ -370,6 +371,21 @@ static int unpack (FILE *fp, const char *what, const char *fmt,
}


void timestamp_as_utc_string(char *dst, int64_t epoch) {
time_t seconds = (time_t)(epoch/1000);
int milliseconds = epoch % 1000;
struct tm ts;

// Format time, "ddd yyyy-mm-dd hh:mm:ss.xxx zzz", xxx is place for milliseconds
ts = *localtime(&seconds);
strftime(dst, 64, "%a %Y-%m-%d %H:%M:%S.xxx %Z", &ts);

char* p;
p = strstr(dst, "xxx");
char ms[4];
sprintf(ms, "%03d", milliseconds);
strncpy(p, ms, 3);
}


/**
Expand Down Expand Up @@ -511,9 +527,12 @@ static void fmt_msg_output_str (FILE *fp,
{
#if RD_KAFKA_VERSION >= 0x000902ff
rd_kafka_timestamp_type_t tstype;
r = fprintf(fp, "%"PRId64,
rd_kafka_message_timestamp(rkmessage,
&tstype));
int64_t epoch = rd_kafka_message_timestamp(rkmessage, &tstype);

char buf[80];
timestamp_as_utc_string(buf, epoch);

r = fprintf(fp, "%"PRId64" (%s)", epoch, buf);
#else
r = fprintf(fp, "-1");
#endif
Expand Down