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#include <library/cpp/testing/unittest/registar.h>
#include <util/system/error.h>
#include "pair.h"
#include "poller.h"
#include "pollerimpl.h"
Y_UNIT_TEST_SUITE(TSocketPollerTest) {
Y_UNIT_TEST(TestSimple) {
SOCKET sockets[2];
UNIT_ASSERT(SocketPair(sockets) == 0);
TSocketHolder s1(sockets[0]);
TSocketHolder s2(sockets[1]);
TSocketPoller poller;
poller.WaitRead(sockets[1], (void*)17);
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
for (ui32 i = 0; i < 3; ++i) {
char buf[] = {18};
UNIT_ASSERT_VALUES_EQUAL(1, send(sockets[0], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL((void*)17, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(1, recv(sockets[1], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL(18, buf[0]);
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
}
}
Y_UNIT_TEST(TestSimpleOneShot) {
SOCKET sockets[2];
UNIT_ASSERT(SocketPair(sockets) == 0);
TSocketHolder s1(sockets[0]);
TSocketHolder s2(sockets[1]);
TSocketPoller poller;
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
for (ui32 i = 0; i < 3; ++i) {
poller.WaitReadOneShot(sockets[1], (void*)17);
char buf[1];
buf[0] = i + 20;
UNIT_ASSERT_VALUES_EQUAL(1, send(sockets[0], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL((void*)17, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(1, recv(sockets[1], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL(char(i + 20), buf[0]);
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
buf[0] = i + 21;
UNIT_ASSERT_VALUES_EQUAL(1, send(sockets[0], buf, 1, 0));
// this fails if socket is not oneshot
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(1, recv(sockets[1], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL(char(i + 21), buf[0]);
}
}
Y_UNIT_TEST(TestItIsSafeToUnregisterUnregisteredDescriptor) {
SOCKET sockets[2];
UNIT_ASSERT(SocketPair(sockets) == 0);
TSocketHolder s1(sockets[0]);
TSocketHolder s2(sockets[1]);
TSocketPoller poller;
poller.Unwait(s1);
}
Y_UNIT_TEST(TestItIsSafeToReregisterDescriptor) {
SOCKET sockets[2];
UNIT_ASSERT(SocketPair(sockets) == 0);
TSocketHolder s1(sockets[0]);
TSocketHolder s2(sockets[1]);
TSocketPoller poller;
poller.WaitRead(s1, nullptr);
poller.WaitRead(s1, nullptr);
poller.WaitWrite(s1, nullptr);
}
Y_UNIT_TEST(TestSimpleEdgeTriggered) {
SOCKET sockets[2];
UNIT_ASSERT(SocketPair(sockets) == 0);
TSocketHolder s1(sockets[0]);
TSocketHolder s2(sockets[1]);
SetNonBlock(sockets[1]);
TSocketPoller poller;
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
for (ui32 i = 0; i < 3; ++i) {
poller.WaitReadWriteEdgeTriggered(sockets[1], (void*)17);
// notify about writeble
UNIT_ASSERT_VALUES_EQUAL((void*)17, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
char buf[2];
buf[0] = i + 10;
buf[1] = i + 20;
// send one byte
UNIT_ASSERT_VALUES_EQUAL(1, send(sockets[0], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL((void*)17, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
// restart without reading
poller.RestartReadWriteEdgeTriggered(sockets[1], (void*)17, false);
// after restart read and write might generate separate events
{
void* events[3];
size_t count = poller.WaitT(events, 3, TDuration::Zero());
UNIT_ASSERT_GE(count, 1);
UNIT_ASSERT_LE(count, 2);
UNIT_ASSERT_VALUES_EQUAL(events[0], (void*)17);
}
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
// second two more bytes
UNIT_ASSERT_VALUES_EQUAL(2, send(sockets[0], buf, 2, 0));
// here poller could notify or not because we haven't seen end
Y_UNUSED(poller.WaitT(TDuration::Zero()));
// recv one, leave two
UNIT_ASSERT_VALUES_EQUAL(1, recv(sockets[1], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL(char(i + 10), buf[0]);
// nothing new
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
// recv the rest
UNIT_ASSERT_VALUES_EQUAL(2, recv(sockets[1], buf, 2, 0));
UNIT_ASSERT_VALUES_EQUAL(char(i + 10), buf[0]);
UNIT_ASSERT_VALUES_EQUAL(char(i + 20), buf[1]);
// still nothing new
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
// hit end
ClearLastSystemError();
UNIT_ASSERT_VALUES_EQUAL(-1, recv(sockets[1], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL(EAGAIN, LastSystemError());
// restart after end (noop for epoll)
poller.RestartReadWriteEdgeTriggered(sockets[1], (void*)17, true);
// send and recv byte
UNIT_ASSERT_VALUES_EQUAL(1, send(sockets[0], buf, 1, 0));
UNIT_ASSERT_VALUES_EQUAL((void*)17, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
// recv and see end
UNIT_ASSERT_VALUES_EQUAL(1, recv(sockets[1], buf, 2, 0));
UNIT_ASSERT_VALUES_EQUAL(char(i + 10), buf[0]);
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
// the same but send before restart
UNIT_ASSERT_VALUES_EQUAL(1, send(sockets[0], buf, 1, 0));
// restart after end (noop for epoll)
poller.RestartReadWriteEdgeTriggered(sockets[1], (void*)17, true);
UNIT_ASSERT_VALUES_EQUAL((void*)17, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(1, recv(sockets[1], buf, 2, 0));
UNIT_ASSERT_VALUES_EQUAL(char(i + 10), buf[0]);
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
UNIT_ASSERT_VALUES_EQUAL(nullptr, poller.WaitT(TDuration::Zero()));
poller.Unwait(sockets[1]);
}
}
#if defined(HAVE_EPOLL_POLLER)
Y_UNIT_TEST(TestRdhup) {
SOCKET sockets[2];
UNIT_ASSERT(SocketPair(sockets) == 0);
TSocketHolder s1(sockets[0]);
TSocketHolder s2(sockets[1]);
char buf[1] = {0};
UNIT_ASSERT_VALUES_EQUAL(1, send(s1, buf, 1, 0));
shutdown(s1, SHUT_WR);
using TPoller = TGenericPoller<TEpollPoller<TWithoutLocking>>;
TPoller poller;
poller.Set((void*)17, s2, CONT_POLL_RDHUP);
TPoller::TEvent e;
UNIT_ASSERT_VALUES_EQUAL(poller.WaitD(&e, 1, TDuration::Zero().ToDeadLine()), 1);
UNIT_ASSERT_EQUAL(TPoller::ExtractStatus(&e), 0);
UNIT_ASSERT_EQUAL(TPoller::ExtractFilter(&e), CONT_POLL_RDHUP);
UNIT_ASSERT_EQUAL(TPoller::ExtractEvent(&e), (void*)17);
}
Y_UNIT_TEST(TestSetSocketErrors) {
TGenericPoller<TEpollPoller<TWithoutLocking>> poller;
UNIT_ASSERT_EXCEPTION_CONTAINS(poller.Set(nullptr, Max<int>(), CONT_POLL_READ), TSystemError, "epoll add failed");
UNIT_ASSERT_EXCEPTION_CONTAINS(poller.Set(nullptr, Max<int>(), CONT_POLL_READ | CONT_POLL_MODIFY), TSystemError, "epoll modify failed");
}
#endif
}
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