void
ruadd(struct rusage *ru, struct rusage *ru2)
{
long *lp, *lp2;
int cnt;
/*
* The SunOS 4.x <sys/rusage.h> has ru_first and ru_last #defines
* as below.
* The SVR4/POSIX <sys/resource.h> does not have these defined for
* struct rusage
* The #defines below are here so that the original csh logic
* for ruadd remains clear now that there is no longer a private copy
* of the old <sys/resource.h>
*/
#define ru_first ru_ixrss
#define ru_last ru_nivcsw
#ifdef TRACE
tprintf("TRACE- ruadd()\n");
#endif
tvadd(&ru->ru_utime, &ru2->ru_utime);
tvadd(&ru->ru_stime, &ru2->ru_stime);
if (ru2->ru_maxrss > ru->ru_maxrss) {
ru->ru_maxrss = ru2->ru_maxrss;
}
cnt = &ru->ru_last - &ru->ru_first + 1;
lp = &ru->ru_first;
lp2 = &ru2->ru_first;
do {
*lp++ += *lp2++;
} while (--cnt > 0);
}
/*
* R E A D _ T I M E R
*
*/
double
read_timer(char *str, int len)
{
struct timeval timedol;
struct rusage ru1;
struct timeval td;
struct timeval tend, tstart;
char line[132];
getrusage(RUSAGE_SELF, &ru1);
gettimeofday(&timedol, (struct timezone *)0);
prusage(&ru0, &ru1, &timedol, &time0, line);
/* XXX: buffer overflow if len > sizeof(line) */
(void)strncpy(str, line, len);
/* Get real time */
tvsub(&td, &timedol, &time0);
realt = td.tv_sec + ((double)td.tv_usec) / 1000000;
/* Get CPU time (user+sys) */
tvadd(&tend, &ru1.ru_utime, &ru1.ru_stime);
tvadd(&tstart, &ru0.ru_utime, &ru0.ru_stime);
tvsub(&td, &tend, &tstart);
cput = td.tv_sec + ((double)td.tv_usec) / 1000000;
if (cput < 0.00001)
cput = 0.00001;
return(cput);
}
/*
* R E A D _ T I M E R
*/
double
read_timer (char *str, int len)
{
struct itimerval itimedol;
struct rusage ru1;
struct timeval td;
struct timeval tend, tstart;
char line[132];
getrusage (RUSAGE_SELF, &ru1);
fprintf(stdout, "final user time = %d sec and %d usec\n", ru1.ru_utime.tv_sec, ru1.ru_utime.tv_usec);
fprintf(stdout, "final sys time = %d sec and %d usec\n", ru1.ru_stime.tv_sec, ru1.ru_stime.tv_usec);
if (getitimer (ITIMER_REAL, &itimedol))
{
perror ("Getting 'itimer' REAL failed");
return (0.0);
}
fprintf(stdout, "End transaction time = %d sec and %d usec\n", itimedol.it_value.tv_sec, itimedol.it_value.tv_usec);
prusage (&ru0, &ru1, &itime0.it_value, &itimedol.it_value, line);
(void) strncpy (str, line, len);
/* Get real time */
tvsub (&td, &itime0.it_value, &itimedol.it_value);
realt = td.tv_sec + ((double) td.tv_usec) / 1000000;
/* Get CPU time (user+sys) */
tvadd (&tend, &ru1.ru_utime, &ru1.ru_stime);
tvadd (&tstart, &ru0.ru_utime, &ru0.ru_stime);
tvsub (&td, &tend, &tstart);
cput = td.tv_sec + ((double) td.tv_usec) / 1000000;
if (cput < 0.00001)
cput = 0.00001;
return (cput);
}
void print_statistics(int socktype, struct timeval start, struct timeval end, int total_bytes, int io) {
int i;
struct s_time_record *record;
struct timeval tdiff, total_delay, avg_delay, sqrsum;// sdiv, tmp;
int npackets = 0;
double t_delay, t_avg, t_total;
record = time_record_head.next;
int last_seq = 1;
struct s_seqlist *seqlist;
total_delay.tv_sec = 0;
total_delay.tv_usec = 0;
sqrsum.tv_sec = 0;
sqrsum.tv_usec = 0;
while(record != NULL) {
/*
printf("%i ", record->seq);
if(seqformat++ == 10) {
printf("\n");
seqformat = 0;
}*/
if(socktype == SOCK_DGRAM) {
/* save potentially lost sequence numbers */
for(i = last_seq + 1; i < record->seq; i++)
insert_seq(i);
/* saved sequence number found. Delete it from lost-seq-number list */
if(last_seq > record->seq)
delete_seq(record->seq);
last_seq = record->seq;
}
tvsub(&tdiff, &(record->my_time), &(record->his_time)); /* delay */
tvadd(&total_delay, &total_delay, &tdiff); /* sum delay */
npackets++;
record = record->next;
}
avg_delay.tv_sec = total_delay.tv_sec / npackets;
avg_delay.tv_usec = total_delay.tv_usec / npackets;
/*
//standard diviation:
record = time_record_head.next;
while(record != NULL) {
tvsub(&tdiff, &(record->my_time), &(record->his_time)); //delay
tvsub(&tmp, &tdiff, &avg_delay); // x1 - mü
tvsqr(&tmp); // (x - mü)^2
tvadd(&sdiv, &tmp);
record = record->next;
}*/
tvsub(&tdiff, &end, &start);
t_avg = tvtosec(&avg_delay);
t_total = tvtosec(&tdiff);
t_delay = tvtosec(&total_delay);
printf("\n\nprinting statistics:\n" \
"--------------------------\n");
printf("%i bytes received in %.2f seconds\n", total_bytes, t_total);
printf("I/O calls: %i\n", io);
printf("packets received: %i\n", npackets);
printf("total delay: %.2f seconds\n", t_delay);
printf("average delay: %f seconds\n", t_avg);
/* printf("standard diviation: %ld seconds, %ld microseconds\n", sdiv.tv_sec / npackets,
sdiv.tv_usec / npackets); */
/* print lost packets (only UDP) */
if(socktype == SOCK_DGRAM) {
seqlist = seqlist_head.next;
if(seqlist == NULL)
printf("No packet loss\n");
else {
int format = 0;
int packetloss = 0;
printf("\nPackets with the following sequence numbers are lost:\n\n");
while(seqlist != NULL) {
packetloss++;
printf("%i ", seqlist->val);
seqlist = seqlist->next;
if(format++ == 10) {
printf("\n");
format = 0;
}
}
printf("\n\nNumber of packets lost: %i\n", packetloss);
}
}
printf("\n\n");
}
/* called on every vsync */
void pl_frame_limit(void)
{
static struct timeval tv_old, tv_expect;
static int vsync_cnt_prev;
struct timeval now;
int diff, usadj;
vsync_cnt++;
/* doing input here because the pad is polled
* thousands of times per frame for some reason */
update_input();
pcnt_end(PCNT_ALL);
gettimeofday(&now, 0);
if (now.tv_sec != tv_old.tv_sec) {
diff = tvdiff(now, tv_old);
vsps_cur = 0.0f;
if (0 < diff && diff < 2000000)
vsps_cur = 1000000.0f * (vsync_cnt - vsync_cnt_prev) / diff;
vsync_cnt_prev = vsync_cnt;
flips_per_sec = flip_cnt;
flip_cnt = 0;
tv_old = now;
if (g_opts & OPT_SHOWCPU)
tick_per_sec = get_cpu_ticks();
if (hud_new_msg > 0) {
hud_new_msg--;
if (hud_new_msg == 0)
hud_msg[0] = 0;
}
}
#ifdef PCNT
static int ya_vsync_count;
if (++ya_vsync_count == PCNT_FRAMES) {
pcnt_print(vsps_cur);
ya_vsync_count = 0;
}
#endif
tvadd(tv_expect, pl_frame_interval);
diff = tvdiff(tv_expect, now);
if (diff > MAX_LAG_FRAMES * pl_frame_interval || diff < -MAX_LAG_FRAMES * pl_frame_interval) {
//printf("pl_frame_limit reset, diff=%d, iv %d\n", diff, pl_frame_interval);
tv_expect = now;
diff = 0;
// try to align with vsync
usadj = vsync_usec_time;
while (usadj < tv_expect.tv_usec - pl_frame_interval)
usadj += pl_frame_interval;
tv_expect.tv_usec = usadj;
}
if (!(g_opts & OPT_NO_FRAMELIM) && diff > pl_frame_interval) {
// yay for working usleep on pandora!
//printf("usleep %d\n", diff - pl_frame_interval / 2);
usleep(diff - pl_frame_interval / 2);
}
if (UseFrameSkip) {
if (diff < -pl_frame_interval) {
// P.E.Op.S. makes skip decision based on this
fps_skip = 1.0f;
plugin_skip_advice = 1;
}
else if (diff >= 0) {
fps_skip = 100.0f;
plugin_skip_advice = 0;
}
}
pcnt_start(PCNT_ALL);
}