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This article is about how to use the gettimeofday () function in linux. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Gettimeofday () gets the current time

The function prototype is as follows:

1 # include 2 3 int gettimeofday (struct timeval * tv, struct timezone * tz); 4 5 struct timeval {6 time_t tv_sec; / * seconds (seconds) * / 7 suseconds_t tv_usec; / * microseconds (microseconds) * / 8}; 9 struct timezone {10 int tz_minuteswest / * minutes west of Greenwich * / 11 int tz_dsttime; / * type of DST correction * / 12}; 13 / / the current time obtained by the gettimeofday function is stored in the tv structure, while the corresponding time zone information is stored in the tz structure. 14 / / it should be noted that tz depends on the system, and different systems may not be able to obtain it, so it is usually set to NULLeg:

1 # include 2 # include 3 # include 4 5 int main () 6 {7 struct timeval tv; 8 9 gettimeofday (& tv, NULL); 10 11 printf ("tv_sec:% d\ n", tv.tv_sec); 12 printf ("tv_usec:% d\ n", tv.tv_usec); 13 14 return 0; 15} Thank you for reading! This is the end of the article on "how to use the gettimeofday () function in linux". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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