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log: increase precision in log's timestamp to nanoseconds #9986

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log: increase precision in log's timestamp to nanoseconds #9986

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89f1d80
log: increase precision in log's timestamp to nanoseconds
lecaros Feb 21, 2025
34f9e63
log: create function get_current_time to include windows support
lecaros Feb 21, 2025
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35 changes: 31 additions & 4 deletions src/flb_log.c
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Original file line number Diff line number Diff line change
Expand Up @@ -561,20 +561,46 @@ struct flb_log *flb_log_create(struct flb_config *config, int type,
return log;
}

#ifdef _WIN32
#include "windows.h"

#define WINDOWS_EPOCH_OFFSET 116444736000000000ULL

void get_current_time(struct timespec *ts)
{
FILETIME ft;
ULARGE_INTEGER li;

GetSystemTimeAsFileTime(&ft);
li.LowPart = ft.dwLowDateTime;
li.HighPart = ft.dwHighDateTime;

// Convert to Unix epoch
uint64_t time = (li.QuadPart - WINDOWS_EPOCH_OFFSET) / 10;
ts->tv_sec = time / 1000000;
ts->tv_nsec = (time % 1000000) * 1000;
}
#else
void get_current_time(struct timespec *ts)
{
clock_gettime(CLOCK_REALTIME, ts);
}
#endif

int flb_log_construct(struct log_message *msg, int *ret_len,
int type, const char *file, int line, const char *fmt, va_list *args)
{
int body_size;
int ret;
int len;
int total;
time_t now;
const char *header_color = NULL;
const char *header_title = NULL;
const char *bold_color = ANSI_BOLD;
const char *reset_color = ANSI_RESET;
struct tm result;
struct tm *current;
struct timespec ts;

switch (type) {
case FLB_LOG_HELP:
Expand Down Expand Up @@ -620,15 +646,15 @@ int flb_log_construct(struct log_message *msg, int *ret_len,
}
#endif // FLB_LOG_NO_CONTROL_CHARS

now = time(NULL);
current = localtime_r(&now, &result);
get_current_time(&ts);
current = localtime_r(&ts.tv_sec, &result);

if (current == NULL) {
return -1;
}

len = snprintf(msg->msg, sizeof(msg->msg) - 1,
"%s[%s%i/%02i/%02i %02i:%02i:%02i%s]%s [%s%5s%s] ",
"%s[%s%i/%02i/%02i %02i:%02i:%02i.%03ld%s]%s [%s%5s%s] ",
/* time */ /* type */

/* time variables */
Expand All @@ -639,6 +665,7 @@ int flb_log_construct(struct log_message *msg, int *ret_len,
current->tm_hour,
current->tm_min,
current->tm_sec,
ts.tv_nsec,
bold_color, reset_color,

/* type format */
Expand Down
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