masters-thesis/listings/send_time.c

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// `int messages' represents the number of messages to be sent
struct timespec tp[messages];
for (int i = 0; i < messages; i++) {
/**
* Prepare WR with an sge that points to tv_nsec of tp[i].
* By using an array of timespecs, it is guaranteed that
* the timestamp will not be overwritten.
*/
clock_gettime(CLOCK_MONOTONIC, &tp[i]);
ibv_post_send();
}