newrelic.h

/*
 * Add X-Request-Start header so we can track queue times in New Relic RPM
 */

#include <stdio.h>
#include <sys/time.h>

struct timeval detail_time;
gettimeofday(&detail_time, NULL);
char start[20]; 
sprintf(start, "t=%lu%06lu", detail_time.tv_sec, detail_time.tv_usec);
VRT_SetHdr(sp, HDR_REQ, "\020X-Request-Start:", start, vrt_magic_string_end);