#include <sys/time.h>
u_int32_t strtox(char *src, char **end);
+u_int64_t strtox64(char *src, char **end);
#define atox(x) strtox((x),NULL)
char* xtostr(u_int32_t x);
+char* x64tostr(u_int64_t x);
double timediff(struct timeval *begin, struct timeval *end);
double elapsedtime(struct timeval *begin);