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#include "dnscache.h"
#include "apphook.h"
#include "timeutils.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
void
test_expiration(void)
{
gint i;
const gchar *hn = NULL;
gboolean positive;
dns_cache_init();
dns_cache_set_params(50000, 3, 1, NULL);
for (i = 0; i < 10000; i++)
{
guint32 ni = htonl(i);
dns_cache_store(FALSE, AF_INET, (void *) &ni, i < 5000 ? "hostname" : NULL, i < 5000);
}
for (i = 0; i < 10000; i++)
{
guint32 ni = htonl(i);
hn = NULL;
positive = FALSE;
if (!dns_cache_lookup(AF_INET, (void *) &ni, &hn, &positive))
{
fprintf(stderr, "hmmm cache forgot the cache entry too early, i=%d, hn=%s\n", i, hn);
exit(1);
}
else
{
if (i < 5000)
{
if (!positive || strcmp(hn, "hostname") != 0)
{
fprintf(stderr, "hmm, cached returned an positive match, but cached name invalid, i=%d, hn=%s\n", i, hn);
exit(1);
}
}
else
{
if (positive || hn != NULL)
{
fprintf(stderr, "hmm, cache returned a positive match, where a negative match was expected, i=%d, hn=%s\n", i, hn);
exit(1);
}
}
}
}
/* negative entries should expire by now, positive ones still present */
sleep(2);
invalidate_cached_time();
for (i = 0; i < 10000; i++)
{
guint32 ni = htonl(i);
hn = NULL;
positive = FALSE;
if (i < 5000)
{
if (!dns_cache_lookup(AF_INET, (void *) &ni, &hn, &positive) || !positive)
{
fprintf(stderr, "hmmm cache forgot positive entries too early, i=%d\n", i);
exit(1);
}
}
else
{
if (dns_cache_lookup(AF_INET, (void *) &ni, &hn, &positive) || positive)
{
fprintf(stderr, "hmmm cache didn't forget negative entries in time, i=%d\n", i);
exit(1);
}
}
}
/* everything should be expired by now */
sleep(2);
invalidate_cached_time();
for (i = 0; i < 10000; i++)
{
guint32 ni = htonl(i);
hn = NULL;
positive = FALSE;
if (dns_cache_lookup(AF_INET, (void *) &ni, &hn, &positive))
{
fprintf(stderr, "hmmm cache did not forget an expired entry, i=%d\n", i);
exit(1);
}
}
}
void
test_dns_cache_benchmark(void)
{
GTimeVal start, end;
const gchar *hn;
gboolean positive;
gint i;
dns_cache_init();
dns_cache_set_params(50000, 600, 300, NULL);
for (i = 0; i < 10000; i++)
{
guint32 ni = htonl(i);
dns_cache_store(FALSE, AF_INET, (void *) &ni, "hostname", TRUE);
}
g_get_current_time(&start);
/* run benchmarks */
for (i = 0; i < 10000; i++)
{
guint32 ni = htonl(i % 10000);
hn = NULL;
if (!dns_cache_lookup(AF_INET, (void *) &ni, &hn, &positive))
{
fprintf(stderr, "hmm, dns cache entries expired during benchmarking, this is unexpected\n, i=%d", i);
}
}
g_get_current_time(&end);
printf("DNS cache speed: %12.3f iters/sec\n", i * 1e6 / g_time_val_diff(&end, &start));
}
void
test_inet_ntop_benchmark(void)
{
GTimeVal start, end;
gint i;
gchar buf[32];
g_get_current_time(&start);
/* run benchmarks */
for (i = 0; i < 10000; i++)
{
guint32 ni = htonl(i % 10000);
inet_ntop(AF_INET, (void *) &ni, buf, sizeof(buf));
}
g_get_current_time(&end);
printf("inet_ntop speed: %12.3f iters/sec\n", i * 1e6 / g_time_val_diff(&end, &start));
}
int
main()
{
app_startup();
test_expiration();
test_dns_cache_benchmark();
test_inet_ntop_benchmark();
app_shutdown();
return 0;
}
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