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#include <pcp/pmapi.h>
#include <pcp/impl.h>
static struct timeval start;
#ifdef IS_MINGW
void pause(void) { SleepEx(INFINITE, TRUE); }
#endif
static int reg[4];
static void
printstamp(struct timeval *tp)
{
static struct tm *tmp;
time_t tt = (time_t)tp->tv_sec;
tmp = localtime(&tt);
fprintf(stderr, "%02d:%02d:%02d.%06d", tmp->tm_hour, tmp->tm_min, tmp->tm_sec, (int)tp->tv_usec);
}
void
onevent(int afid, void *data)
{
struct timeval now;
static int delay = -3;
int evnum;
double elapsed;
struct timeval sec = { 0, 0 };
gettimeofday(&now, NULL);
if (pmDebug & DBG_TRACE_AF) {
fprintf(stderr, "onevent(%d, " PRINTF_P_PFX "%p) called: ", afid, data);
printstamp(&now);
fputc('\n', stderr);
}
elapsed = now.tv_sec - start.tv_sec + (double)(now.tv_usec - start.tv_usec) / 1000000.0;
if (afid == reg[2])
printf("event %d callback\n", afid);
else {
if (afid == reg[0])
evnum = (int)(elapsed / 2.5);
else
evnum = (int)(elapsed / 1.5);
/* evnum not reliable for small elapsed intervals */
if (evnum >= 3)
printf("event %d callback #%d\n", afid, evnum);
else
printf("event %d callback #?\n", afid);
}
if (delay > 6) {
/* only report the unexpected */
if (__pmAFunregister(reg[0]) < 0)
printf("unregister %d failed\n", reg[0]);
if (__pmAFunregister(reg[1]) == 0)
printf("unregister %d success\n", reg[1]);
if (__pmAFunregister(reg[2]) == 0)
printf("unregister %d success\n", reg[2]);
if (__pmAFunregister(reg[3]) < 0)
printf("unregister %d failed\n", reg[0]);
exit(0);
}
if (delay > 0) {
/*
* was sginap(delay * CLK_TCK) ... usleep() for
* delay*CLK_TCK*10^6/CLK_TCK microseconds so "delay" sec
*/
sec.tv_sec = delay;
__pmtimevalSleep(sec);
}
delay++;
if (pmDebug & DBG_TRACE_AF) {
gettimeofday(&now, NULL);
fprintf(stderr, "onevent done: ");
printstamp(&now);
fputc('\n', stderr);
}
fflush(stderr);
fflush(stdout);
}
int
main(int argc, char **argv)
{
int c;
int sts;
int errflag = 0;
struct timeval delta = { 2, 500000 };
struct timeval now;
__pmSetProgname(argv[0]);
while ((c = getopt(argc, argv, "D:?")) != EOF) {
switch (c) {
case 'D': /* debug flag */
sts = __pmParseDebug(optarg);
if (sts < 0) {
fprintf(stderr, "%s: unrecognized debug flag specification (%s)\n",
pmProgname, optarg);
errflag++;
}
else
pmDebug |= sts;
break;
case '?':
default:
errflag++;
break;
}
}
if (errflag) {
fprintf(stderr,
"Usage: %s options ...\n\
\n\
Options\n\
-D debug standard PCP debug flag\n",
pmProgname);
exit(1);
}
__pmAFblock();
gettimeofday(&start, NULL);
reg[0] = __pmAFregister(&delta, NULL, onevent);
delta.tv_sec = 1;
reg[1] = __pmAFregister(&delta, NULL, onevent);
delta.tv_sec = 0;
delta.tv_usec = 0;
reg[2] = __pmAFregister(&delta, NULL, onevent);
delta.tv_sec = 60; /* will never fire */
reg[3] = __pmAFregister(&delta, NULL, onevent);
__pmAFunblock();
for ( ; ; ) {
fflush(stderr);
pause();
if (pmDebug & DBG_TRACE_AF) {
gettimeofday(&now, NULL);
fprintf(stderr, "returned from pause(): ");
printstamp(&now);
fputc('\n', stderr);
}
}
}
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