#include <cstdio>
#include <ctime>
#include <sys/time.h>
#include <cmath>
#include <string>
#define DEBUG_PRINT(fmt, ...) printf(fmt, ##__VA_ARGS__)
// Function prototypes
std::string GetTimeString();
void PrintHexData(void *data, int size);
long timeInterval(struct timeval *start, struct timeval *end);
int main()
{
// Sample data to be printed in hexadecimal format
char data[] = {0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0};
int dataSize = sizeof(data);
// Timing variables
struct timeval start, end;
// Get start time
gettimeofday(&start, NULL);
// Call the function to print hex data
PrintHexData(data, dataSize);
// Get end time
gettimeofday(&end, NULL);
// Calculate and print the time interval
long interval = timeInterval(&start, &end);
printf("******** Time Interval: %ld microseconds\n", interval);
return 0;
}
void PrintHexData(void *data, int size)
{
char str[100] = {0};
int wrlen = 0;
for (int i = 0; i < size; i++)
wrlen += sprintf(str + wrlen, "0x%.2hhX ", ((char*)data)[i]);
DEBUG_PRINT("%s Data: %s\n", GetTimeString().c_str(), str);
}
std::string GetTimeString()
{
char buffer[26];
struct timeval tv;
gettimeofday(&tv, NULL);
int millisec = lrint(tv.tv_usec / 1000.0); /* Round to nearest millisec */
if (millisec >= 1000) /* Allow for rounding up to nearest second */
{
millisec -= 1000;
tv.tv_sec++;
}
struct tm* tm_info = localtime(&tv.tv_sec);
strftime(buffer, 26, "%Y-%m-%d %H:%M:%S", tm_info);
char str[100];
sprintf(str, "[%s.%03d]", buffer, millisec);
return std::string(str);
}
long timeInterval(struct timeval *start, struct timeval *end)
{
return ((end->tv_sec - start->tv_sec) * 1000000L + end->tv_usec) - start->tv_usec;
}
