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// This file is part of CAF, the C++ Actor Framework. See the file LICENSE in
// the main distribution directory for license terms and copyright or visit
// https://github.com/actor-framework/actor-framework/blob/master/LICENSE.
#define CAF_SUITE request_timeout
#include "core-test.hpp"
#include <chrono>
#include "caf/all.hpp"
using namespace caf;
using std::chrono::milliseconds;
using std::chrono::seconds;
using namespace std::string_literals;
namespace {
struct pong_state {
static inline const char* name = "pong";
};
behavior pong(stateful_actor<pong_state>*) {
return {
[=](ping_atom) { return pong_atom_v; },
};
}
struct ping_state {
static inline const char* name = "ping";
bool had_first_timeout = false; // unused in ping_singleN functions
};
using ping_actor = stateful_actor<ping_state>;
using fptr = behavior (*)(ping_actor*, bool*, const actor&);
using test_vec = std::vector<std::pair<fptr, std::string>>;
// assumes to receive a timeout (sent via delayed_send) before pong replies
behavior ping_single1(ping_actor* self, bool* had_timeout, const actor& buddy) {
self->send(buddy, ping_atom_v);
self->delayed_send(self, std::chrono::seconds(1), timeout_atom_v);
return {
[=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](timeout_atom) {
*had_timeout = true;
self->quit();
},
};
}
// assumes to receive a timeout (via after()) before pong replies
behavior ping_single2(ping_actor* self, bool* had_timeout, const actor& buddy) {
self->send(buddy, ping_atom_v);
return {
[=](pong_atom) { CAF_FAIL("received pong atom"); },
after(std::chrono::seconds(1)) >>
[=] {
CAF_LOG_TRACE(CAF_ARG2("had_timeout", *had_timeout));
*had_timeout = true;
self->quit();
},
};
}
// assumes to receive a timeout (via request error handler) before pong replies
behavior ping_single3(ping_actor* self, bool* had_timeout, const actor& buddy) {
self->request(buddy, milliseconds(100), ping_atom_v)
.then([=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](const error& err) {
CAF_REQUIRE(err == sec::request_timeout);
*had_timeout = true;
});
return {}; // dummy value in order to give all 3 variants the same fun sig
}
// assumes to receive an inner timeout (sent via delayed_send) before pong
// replies, then second timeout fires
behavior ping_nested1(ping_actor* self, bool* had_timeout, const actor& buddy) {
self->send(buddy, ping_atom_v);
self->delayed_send(self, std::chrono::seconds(1), timeout_atom_v);
return {
[=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](timeout_atom) {
self->state.had_first_timeout = true;
self->become(after(milliseconds(100)) >> [=] {
CHECK(self->state.had_first_timeout);
*had_timeout = true;
self->quit();
});
},
};
}
// assumes to receive an inner timeout (via after()) before pong replies, then a
// second timeout fires
behavior ping_nested2(ping_actor* self, bool* had_timeout, const actor& buddy) {
self->send(buddy, ping_atom_v);
return {
[=](pong_atom) { CAF_FAIL("received pong atom"); },
after(std::chrono::seconds(1)) >>
[=] {
self->state.had_first_timeout = true;
self->become(after(milliseconds(100)) >> [=] {
CHECK(self->state.had_first_timeout);
*had_timeout = true;
self->quit();
});
},
};
}
// assumes to receive an inner timeout (via request error handler) before pong
// replies, then a second timeout fires
behavior ping_nested3(ping_actor* self, bool* had_timeout, const actor& buddy) {
self->request(buddy, milliseconds(100), ping_atom_v)
.then(
[=](pong_atom) {
CAF_FAIL("received pong atom");
self->quit(sec::unexpected_message);
},
[=](const error& err) {
CAF_REQUIRE_EQUAL(err, sec::request_timeout);
self->state.had_first_timeout = true;
});
return {
after(milliseconds(100)) >>
[=] {
CHECK(self->state.had_first_timeout);
*had_timeout = true;
self->quit();
},
};
}
// uses .then on both requests
behavior ping_multiplexed1(ping_actor* self, bool* had_timeout,
const actor& pong_actor) {
self->request(pong_actor, milliseconds(100), ping_atom_v)
.then([=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](const error& err) {
CAF_REQUIRE_EQUAL(err, sec::request_timeout);
if (!self->state.had_first_timeout)
self->state.had_first_timeout = true;
else
*had_timeout = true;
});
self->request(pong_actor, milliseconds(100), ping_atom_v)
.then([=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](const error& err) {
CAF_REQUIRE_EQUAL(err, sec::request_timeout);
if (!self->state.had_first_timeout)
self->state.had_first_timeout = true;
else
*had_timeout = true;
});
return {};
}
// uses .await on both requests
behavior ping_multiplexed2(ping_actor* self, bool* had_timeout,
const actor& pong_actor) {
self->request(pong_actor, milliseconds(100), ping_atom_v)
.await([=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](const error& err) {
CAF_REQUIRE_EQUAL(err, sec::request_timeout);
if (!self->state.had_first_timeout)
self->state.had_first_timeout = true;
else
*had_timeout = true;
});
self->request(pong_actor, milliseconds(100), ping_atom_v)
.await([=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](const error& err) {
CAF_REQUIRE_EQUAL(err, sec::request_timeout);
if (!self->state.had_first_timeout)
self->state.had_first_timeout = true;
else
*had_timeout = true;
});
return {};
}
// uses .await and .then
behavior ping_multiplexed3(ping_actor* self, bool* had_timeout,
const actor& pong_actor) {
self->request(pong_actor, milliseconds(100), ping_atom_v)
.then([=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](const error& err) {
CAF_REQUIRE_EQUAL(err, sec::request_timeout);
if (!self->state.had_first_timeout)
self->state.had_first_timeout = true;
else
*had_timeout = true;
});
self->request(pong_actor, milliseconds(100), ping_atom_v)
.await([=](pong_atom) { CAF_FAIL("received pong atom"); },
[=](const error& err) {
CAF_REQUIRE_EQUAL(err, sec::request_timeout);
if (!self->state.had_first_timeout)
self->state.had_first_timeout = true;
else
*had_timeout = true;
});
return {};
}
} // namespace
BEGIN_FIXTURE_SCOPE(test_coordinator_fixture<>)
CAF_TEST(single_timeout) {
test_vec fs{{ping_single1, "ping_single1"},
{ping_single2, "ping_single2"},
{ping_single3, "ping_single3"}};
for (auto f : fs) {
bool had_timeout = false;
MESSAGE("test implementation " << f.second);
auto testee = sys.spawn(f.first, &had_timeout, sys.spawn<lazy_init>(pong));
CAF_REQUIRE_EQUAL(sched.jobs.size(), 1u);
CAF_REQUIRE_EQUAL(sched.next_job<local_actor>().name(), "ping"s);
sched.run_once();
CAF_REQUIRE_EQUAL(sched.jobs.size(), 1u);
CAF_REQUIRE_EQUAL(sched.next_job<local_actor>().name(), "pong"s);
sched.trigger_timeout();
CAF_REQUIRE_EQUAL(sched.jobs.size(), 2u);
// now, the timeout message is already dispatched, while pong did
// not respond to the message yet, i.e., timeout arrives before response
CHECK_EQ(sched.run(), 2u);
CHECK(had_timeout);
}
}
CAF_TEST(nested_timeout) {
test_vec fs{{ping_nested1, "ping_nested1"},
{ping_nested2, "ping_nested2"},
{ping_nested3, "ping_nested3"}};
for (auto f : fs) {
bool had_timeout = false;
MESSAGE("test implementation " << f.second);
auto testee = sys.spawn(f.first, &had_timeout, sys.spawn<lazy_init>(pong));
CAF_REQUIRE_EQUAL(sched.jobs.size(), 1u);
CAF_REQUIRE_EQUAL(sched.next_job<local_actor>().name(), "ping"s);
sched.run_once();
CAF_REQUIRE_EQUAL(sched.jobs.size(), 1u);
CAF_REQUIRE_EQUAL(sched.next_job<local_actor>().name(), "pong"s);
sched.trigger_timeout();
CAF_REQUIRE_EQUAL(sched.jobs.size(), 2u);
// now, the timeout message is already dispatched, while pong did
// not respond to the message yet, i.e., timeout arrives before response
sched.run();
// dispatch second timeout
CAF_REQUIRE_EQUAL(sched.trigger_timeout(), true);
CAF_REQUIRE_EQUAL(sched.next_job<local_actor>().name(), "ping"s);
CHECK(!had_timeout);
CHECK(sched.next_job<ping_actor>().state.had_first_timeout);
sched.run();
CHECK(had_timeout);
}
}
CAF_TEST(multiplexed_timeout) {
test_vec fs{{ping_multiplexed1, "ping_multiplexed1"},
{ping_multiplexed2, "ping_multiplexed2"},
{ping_multiplexed3, "ping_multiplexed3"}};
for (auto f : fs) {
bool had_timeout = false;
MESSAGE("test implementation " << f.second);
auto testee = sys.spawn(f.first, &had_timeout, sys.spawn<lazy_init>(pong));
CAF_REQUIRE_EQUAL(sched.jobs.size(), 1u);
CAF_REQUIRE_EQUAL(sched.next_job<local_actor>().name(), "ping"s);
sched.run_once();
CAF_REQUIRE_EQUAL(sched.jobs.size(), 1u);
CAF_REQUIRE_EQUAL(sched.next_job<local_actor>().name(), "pong"s);
sched.trigger_timeouts();
CAF_REQUIRE_EQUAL(sched.jobs.size(), 2u);
// now, the timeout message is already dispatched, while pong did
// not respond to the message yet, i.e., timeout arrives before response
sched.run();
CHECK(had_timeout);
}
}
END_FIXTURE_SCOPE()
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