static enum pubnub_res end_await(struct UserData *pUserData)
{
#if defined _WIN32
WaitForSingleObject(pUserData->condw, INFINITE);
#else
pthread_mutex_lock(&pUserData->mutw);
while (!pUserData->triggered) {
pthread_cond_wait(&pUserData->condw, &pUserData->mutw);
}
pthread_mutex_unlock(&pUserData->mutw);
#endif
return pubnub_last_result(pUserData->pb);
}
bool pnfntst_subscribe_and_check(pubnub_t *p, char const *channel, char const*chgroup, unsigned ms, ...)
{
char const *aMsgs[16];
char const *aChan[16];
uint16_t missing;
size_t count = 0;
pnfntst_timer_t *tmr;
va_list vl;
PUBNUB_ASSERT(pb_valid_ctx_ptr(p));
va_start(vl, ms);
while (count < 16) {
char const *msg = va_arg(vl, char*);
if (NULL == msg) {
break;
}
aMsgs[count] = msg;
msg = va_arg(vl, char*);
if (NULL == msg) {
return false;
}
aChan[count] = msg;
++count;
}
va_end(vl);
if ((0 == count) || (count > 16)) {
return false;
}
missing = (0x01 << count) - 1;
tmr = pnfntst_alloc_timer();
if (NULL == tmr) {
puts("subscribe and check: timer alloc failed");
return false;
}
pnfntst_start_timer(tmr, ms);
while (pnfntst_timer_is_running(tmr) && missing) {
enum pubnub_res pbres;
if (PNR_STARTED != pubnub_subscribe(p, channel, chgroup)) {
puts("subscribe and check: subscribe failed");
break;
}
while (pnfntst_timer_is_running(tmr)) {
pbres = pubnub_last_result(p);
if (pbres != PNR_STARTED) {
break;
}
}
if (pbres != PNR_OK) {
printf("subscribe and check: subscribe error %d\n", pbres);
break;
}
do {
size_t i;
char const *msg = pubnub_get(p);
char const *chan = pubnub_get_channel(p);
if ((NULL == msg) || (NULL == chan)) {
break;
}
for (i = 0; i < count; ++i) {
if ((missing & (0x01 << i)) && (strcmp(msg, aMsgs[i]) == 0)
&& (strcmp(chan, aChan[i]) == 0)
) {
missing &= ~(0x01 << i);
break;
}
}
} while (missing);
}
pnfntst_free_timer(tmr);
return !missing;
}
pubnub_res futres::end_await()
{
d_pimpl->end_await();
return pubnub_last_result(d_pb);
}
pubnub_res futres::last_result()
{
return pubnub_last_result(d_pb);
}
int main()
{
/* This is a widely use channel, something should happen there
from time to time
*/
char const *chan = "hello_world";
pubnub_t *pbp = pubnub_alloc();
if (NULL == pbp) {
printf("Failed to allocate Pubnub context!\n");
return -1;
}
pubnub_init(pbp, "demo", "demo");
srand(time(NULL));
/* This is essential, as otherwise waiting for incoming data will
block! Since we're doing this, be sure to not enable verbose
debugging, as you won't see a thing except endless lines of
some tracing.
*/
pubnub_set_non_blocking_io(pbp);
puts("--------------------------");
puts("Subscribe loop starting...");
puts("--------------------------");
for (;;) {
time_t t = time(NULL);
bool stop = false;
enum pubnub_res res = pubnub_subscribe(pbp, chan, NULL);
if (res != PNR_STARTED) {
printf("pubnub_subscribe() returned unexpected: %d\n", res);
break;;
}
/* Don't await here, 'cause it will loop until done */
while (!stop) {
res = pubnub_last_result(pbp);
if (res == PNR_STARTED) {
/* Here we simulate the "get out of subscribe loop"
external signal with a random number. Basically,
this has a 4% chance of stopping the wait every
second.
*/
if (time(NULL) != t) {
stop = (rand() % 25) == 3;
t = time(NULL);
}
}
else {
if (PNR_OK == res) {
puts("Subscribed! Got messages:");
for (;;) {
char const *msg = pubnub_get(pbp);
if (NULL == msg) {
break;
}
puts(msg);
}
}
else {
printf("Subscribing failed with code: %d\n", res);
}
break;
}
}
if (stop) {
puts("---------------------------");
puts("Cancelling the Subscribe...");
puts("---------------------------");
pubnub_cancel(pbp);
/* Now it's OK to await, since we don't have anything else
to do
*/
pubnub_await(pbp);
break;
}
}
/* We're done */
if (pubnub_free(pbp) != 0) {
printf("Failed to free the Pubnub context `pbp`\n");
}
puts("Pubnub callback demo over.");
return 0;
}