static flux_msg_t *op_recv (void *impl, int flags)
{
ctx_t *c = impl;
assert (c->magic == CTX_MAGIC);
flux_msg_t *msg = msglist_pop (c->queue);
if (!msg)
errno = EWOULDBLOCK;
return msg;
}
static flux_msg_t *flux_recv_any (flux_t h, int flags)
{
flux_msg_t *msg = NULL;
if (msglist_count (h->queue) > 0)
msg = msglist_pop (h->queue);
else if (h->ops->recv)
msg = h->ops->recv (h->impl, flags);
else
errno = ENOSYS;
return msg;
}
int main (int argc, char *argv[])
{
msglist_t *ml;
int e;
char *msg;
struct pollfd pfd;
plan (19);
ok ((ml = msglist_create (free)) != NULL,
"msglist_create works");
ok ((e = msglist_pollevents (ml)) >= 0 && e == POLLOUT,
"msglist_pollevents on empty msglist returns POLLOUT");
ok (msglist_append (ml, xstrdup ("foo")) == 0,
"msglist_append 'foo' works");
ok ((e = msglist_pollevents (ml)) >= 0 && e == (POLLOUT | POLLIN),
"msglist_pollevents on non-empty msglist returns POLLOUT | POLLIN");
ok (msglist_push (ml, xstrdup ("bar")) == 0,
"msglist_push 'bar' works");
ok ((e = msglist_pollevents (ml)) >= 0 && e == (POLLOUT | POLLIN),
"msglist_pollevents still returns POLLOUT | POLLIN");
ok ((msg = msglist_pop (ml)) != NULL && !strcmp (msg, "bar"),
"msglist_pop returns 'bar'");
ok ((e = msglist_pollevents (ml)) >= 0 && e == (POLLOUT | POLLIN),
"msglist_pollevents still returns POLLOUT | POLLIN");
free (msg);
ok ((msg = msglist_pop (ml)) != NULL && !strcmp (msg, "foo"),
"msglist_pop returns 'foo'");
ok ((e = msglist_pollevents (ml)) >= 0 && e == POLLOUT,
"msglist_pollevents on empty msglist returns POLLOUT");
free (msg);
ok ((pfd.fd = msglist_pollfd (ml)) >= 0,
"msglist_pollfd works");
pfd.events = POLLIN,
pfd.revents = 0,
ok (poll (&pfd, 1, 0) == 1 && pfd.revents == POLLIN,
"pollfd suggests we read pollevents");
ok ((e = msglist_pollevents (ml)) >= 0 && e == POLLOUT,
"msglist_pollevents on empty msglist returns POLLOUT");
pfd.events = POLLIN,
pfd.revents = 0,
ok (poll (&pfd, 1, 0) == 0,
"pollfd is no longer ready");
ok (msglist_push (ml, xstrdup ("foo")) == 0,
"msglist_push 'foo' works");
pfd.events = POLLIN,
pfd.revents = 0,
ok (poll (&pfd, 1, 0) == 1 && pfd.revents == POLLIN,
"pollfd suggests we read pollevents");
ok ((e = msglist_pollevents (ml)) >= 0 && e == (POLLOUT | POLLIN),
"msglist_pollevents on non-empty msglist returns POLLOUT | POLLIN");
pfd.events = POLLIN,
pfd.revents = 0,
ok (poll (&pfd, 1, 0) == 0,
"pollfd is no longer ready");
ok ((e = msglist_pollevents (ml)) >= 0 && e == (POLLOUT | POLLIN),
"msglist_pollevents still returns POLLOUT | POLLIN");
msglist_destroy (ml);
done_testing ();
return (0);
}
