| 54,7 → 54,74 |
|---|
| volatile sysarg_t seconds2; |
| } *ktime = NULL; |
| |
| /** Add microseconds to given timeval. |
| * |
| * @param tv Destination timeval. |
| * @param usecs Number of microseconds to add. |
| */ |
| void tv_add(struct timeval *tv, suseconds_t usecs) |
| { |
| tv->tv_sec += usecs / 1000000; |
| tv->tv_usec += usecs % 1000000; |
| if (tv->tv_usec > 1000000) { |
| tv->tv_sec++; |
| tv->tv_usec -= 1000000; |
| } |
| } |
| |
| /** Subtract two timevals. |
| * |
| * @param tv1 First timeval. |
| * @param tv2 Second timeval. |
| * |
| * @return Return difference between tv1 and tv2 (tv1 - tv2) in |
| * microseconds. |
| */ |
| suseconds_t tv_sub(struct timeval *tv1, struct timeval *tv2) |
| { |
| suseconds_t result; |
| |
| result = tv1->tv_usec - tv2->tv_usec; |
| result += (tv1->tv_sec - tv2->tv_sec) * 1000000; |
| |
| return result; |
| } |
| |
| /** Decide if one timeval is greater than the other. |
| * |
| * @param t1 First timeval. |
| * @param t2 Second timeval. |
| * |
| * @return Return true tv1 is greater than tv2. Otherwise return |
| * false. |
| */ |
| int tv_gt(struct timeval *tv1, struct timeval *tv2) |
| { |
| if (tv1->tv_sec > tv2->tv_sec) |
| return 1; |
| if (tv1->tv_sec == tv2->tv_sec && tv1->tv_usec > tv2->tv_usec) |
| return 1; |
| return 0; |
| } |
| |
| /** Decide if one timeval is greater than or equal to the other. |
| * |
| * @param tv1 First timeval. |
| * @param tv2 Second timeval. |
| * |
| * @return Return true if tv1 is greater than or equal to tv2. |
| * Otherwise return false. |
| */ |
| int tv_gteq(struct timeval *tv1, struct timeval *tv2) |
| { |
| if (tv1->tv_sec > tv2->tv_sec) |
| return 1; |
| if (tv1->tv_sec == tv2->tv_sec && tv1->tv_usec >= tv2->tv_usec) |
| return 1; |
| return 0; |
| } |
| |
| |
| /** POSIX gettimeofday |
| * |
| * The time variables are memory mapped(RO) from kernel, which updates |