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Copy pathtest_sync_send.cpp
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348 lines (324 loc) · 13.3 KB
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#include "test.hpp"
#include "cppa/cppa.hpp"
using namespace std;
using namespace cppa;
using namespace cppa::placeholders;
namespace {
struct sync_mirror : sb_actor<sync_mirror> {
behavior init_state;
sync_mirror() {
init_state = (
others() >> [=] { return last_dequeued(); }
);
}
};
// replies to 'f' with 0.0f and to 'i' with 0
struct float_or_int : sb_actor<float_or_int> {
behavior init_state = (
on(atom("f")) >> [] { return 0.0f; },
on(atom("i")) >> [] { return 0; }
);
};
struct popular_actor : event_based_actor { // popular actors have a buddy
actor m_buddy;
popular_actor(const actor& buddy) : m_buddy(buddy) { }
inline const actor& buddy() const { return m_buddy; }
void report_failure() {
send(buddy(), atom("failure"));
quit();
}
};
/******************************************************************************\
* test case 1: *
* *
* A B C *
* | | | *
* | --(sync_send)--> | | *
* | | --(forward)----> | *
* | X |---\ *
* | | | *
* | |<--/ *
* | <-------------(reply)-------------- | *
* X X *
\******************************************************************************/
struct A : popular_actor {
A(const actor& buddy) : popular_actor(buddy) { }
behavior make_behavior() override {
return (
on(atom("go"), arg_match) >> [=](const actor& next) {
CPPA_CHECKPOINT();
sync_send(next, atom("gogo")).then([=] {
CPPA_CHECKPOINT();
send(buddy(), atom("success"));
quit();
});
},
others() >> [=] { report_failure(); }
);
}
};
struct B : popular_actor {
B(const actor& buddy) : popular_actor(buddy) { }
behavior make_behavior() override {
return (
others() >> [=] {
CPPA_CHECKPOINT();
forward_to(buddy());
quit();
}
);
}
};
struct C : sb_actor<C> {
behavior init_state;
C() {
init_state = (
on(atom("gogo")) >> [=]() -> atom_value {
CPPA_CHECKPOINT();
quit();
return atom("gogogo");
}
);
}
};
/******************************************************************************\
* test case 2: *
* *
* A D C *
* | | | *
* | --(sync_send)--> | | *
* | | --(sync_send)--> | *
* | | |---\ *
* | | | | *
* | | |<--/ *
* | | <---(reply)----- | *
* | <---(reply)----- | *
* X X *
\******************************************************************************/
struct D : popular_actor {
D(const actor& buddy) : popular_actor(buddy) { }
behavior make_behavior() override {
return (
others() >> [=] {
/*
response_promise handle = make_response_promise();
sync_send_tuple(buddy(), last_dequeued()).then([=] {
reply_to(handle, last_dequeued());
quit();
});
//*/
return sync_send_tuple(buddy(), last_dequeued()).then([=]() -> any_tuple {
quit();
return last_dequeued();
});//*/
}
);
}
};
/******************************************************************************\
* test case 3: *
* *
* Client Server Worker *
* | | | *
* | | <---(idle)------ | *
* | ---(request)---> | | *
* | | ---(request)---> | *
* | | |---\ *
* | X | | *
* | |<--/ *
* | <------------(response)------------ | *
* X *
\******************************************************************************/
struct server : event_based_actor {
behavior make_behavior() override {
auto die = [=] { quit(exit_reason::user_shutdown); };
return (
on(atom("idle"), arg_match) >> [=](actor worker) {
become (
keep_behavior,
on(atom("request")) >> [=] {
forward_to(worker);
unbecome(); // await next idle message
},
on(atom("idle")) >> skip_message,
others() >> die
);
},
on(atom("request")) >> skip_message,
others() >> die
);
}
};
void compile_time_optional_variant_check(event_based_actor* self) {
typedef optional_variant<std::tuple<int, float>,
std::tuple<float, int, int>>
msg_type;
self->sync_send(self, atom("msg")).then([](msg_type) {});
}
void test_sync_send() {
scoped_actor self;
self->on_sync_failure([&] {
CPPA_FAILURE("received: " << to_string(self->last_dequeued()));
});
self->spawn<monitored + blocking_api>([](blocking_actor* s) {
CPPA_LOGC_TRACE("NONE", "main$sync_failure_test", "id = " << s->id());
int invocations = 0;
auto foi = s->spawn<float_or_int, linked>();
s->send(foi, atom("i"));
s->receive(on_arg_match >> [](int i) { CPPA_CHECK_EQUAL(i, 0); });
s->on_sync_failure([=] {
CPPA_FAILURE("received: " << to_string(s->last_dequeued()));
});
s->sync_send(foi, atom("i")).await(
[&](int i) { CPPA_CHECK_EQUAL(i, 0); ++invocations; },
[&](float) { CPPA_UNEXPECTED_MSG(s); }
);
s->sync_send(foi, atom("f")).await(
[&](int) { CPPA_UNEXPECTED_MSG(s); },
[&](float f) { CPPA_CHECK_EQUAL(f, 0.f); ++invocations; }
);
CPPA_CHECK_EQUAL(invocations, 2);
CPPA_PRINT("trigger sync failure");
// provoke invocation of s->handle_sync_failure()
bool sync_failure_called = false;
bool int_handler_called = false;
s->on_sync_failure([&] {
sync_failure_called = true;
});
s->sync_send(foi, atom("f")).await(
on<int>() >> [&] {
int_handler_called = true;
}
);
CPPA_CHECK_EQUAL(sync_failure_called, true);
CPPA_CHECK_EQUAL(int_handler_called, false);
s->quit(exit_reason::user_shutdown);
});
self->receive (
on_arg_match >> [&](const down_msg& dm) {
CPPA_CHECK_EQUAL(dm.reason, exit_reason::user_shutdown);
},
others() >> CPPA_UNEXPECTED_MSG_CB_REF(self)
);
auto mirror = spawn<sync_mirror>();
bool continuation_called = false;
self->sync_send(mirror, 42)
.await([&](int value) {
continuation_called = true;
CPPA_CHECK_EQUAL(value, 42);
});
CPPA_CHECK_EQUAL(continuation_called, true);
self->send_exit(mirror, exit_reason::user_shutdown);
self->await_all_other_actors_done();
CPPA_CHECKPOINT();
auto non_normal_down_msg = [](down_msg dm) -> optional<down_msg> {
if (dm.reason != exit_reason::normal) return dm;
return none;
};
auto await_success_message = [&] {
self->receive (
on(atom("success")) >> CPPA_CHECKPOINT_CB(),
on(atom("failure")) >> CPPA_FAILURE_CB("A didn't receive sync response"),
on(non_normal_down_msg) >> [&](const down_msg& dm) {
CPPA_FAILURE("A exited for reason " << dm.reason);
}
);
};
self->send(self->spawn<A, monitored>(self), atom("go"), spawn<B>(spawn<C>()));
await_success_message();
CPPA_CHECKPOINT();
self->await_all_other_actors_done();
self->send(self->spawn<A, monitored>(self), atom("go"), spawn<D>(spawn<C>()));
await_success_message();
CPPA_CHECKPOINT();
self->await_all_other_actors_done();
CPPA_CHECKPOINT();
self->timed_sync_send(self, std::chrono::milliseconds(50), atom("NoWay")).await(
on<sync_timeout_msg>() >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB_REF(self)
);
// we should have received two DOWN messages with normal exit reason
// plus 'NoWay'
int i = 0;
self->receive_for(i, 3) (
on_arg_match >> [&](const down_msg& dm) {
CPPA_CHECK_EQUAL(dm.reason, exit_reason::normal);
},
on(atom("NoWay")) >> [] {
CPPA_CHECKPOINT();
CPPA_PRINT("trigger \"actor did not reply to a "
"synchronous request message\"");
},
others() >> CPPA_UNEXPECTED_MSG_CB_REF(self),
after(std::chrono::seconds(0)) >> CPPA_UNEXPECTED_TOUT_CB()
);
CPPA_CHECKPOINT();
// mailbox should be empty now
self->receive (
others() >> CPPA_UNEXPECTED_MSG_CB_REF(self),
after(std::chrono::seconds(0)) >> CPPA_CHECKPOINT_CB()
);
// check wheter continuations are invoked correctly
auto c = spawn<C>(); // replies only to 'gogo' messages
// first test: sync error must occur, continuation must not be called
bool timeout_occured = false;
self->on_sync_timeout([&] { timeout_occured = true; });
self->on_sync_failure(CPPA_UNEXPECTED_MSG_CB_REF(self));
self->timed_sync_send(c, std::chrono::milliseconds(500), atom("HiThere"))
.await(CPPA_FAILURE_CB("C replied to 'HiThere'!"));
CPPA_CHECK_EQUAL(timeout_occured, true);
self->on_sync_failure(CPPA_UNEXPECTED_MSG_CB_REF(self));
self->sync_send(c, atom("gogo")).await(CPPA_CHECKPOINT_CB());
self->send_exit(c, exit_reason::user_shutdown);
self->await_all_other_actors_done();
CPPA_CHECKPOINT();
// test use case 3
self->spawn<monitored + blocking_api>([](blocking_actor* s) { // client
auto serv = s->spawn<server, linked>(); // server
auto work = s->spawn<linked>([](event_based_actor* w) { // worker
w->become(on(atom("request")) >> []{ return atom("response"); });
});
// first 'idle', then 'request'
anon_send(serv, atom("idle"), work);
s->sync_send(serv, atom("request")).await(
on(atom("response")) >> [=] {
CPPA_CHECKPOINT();
CPPA_CHECK_EQUAL(s->last_sender(), work);
},
others() >> [&] {
CPPA_PRINTERR("unexpected message: "
<< to_string(s->last_dequeued()));
}
);
// first 'request', then 'idle'
auto handle = s->sync_send(serv, atom("request"));
send_as(work, serv, atom("idle"));
handle.await(
on(atom("response")) >> [=] {
CPPA_CHECKPOINT();
CPPA_CHECK_EQUAL(s->last_sender(), work);
},
others() >> CPPA_UNEXPECTED_MSG_CB(s)
);
s->send(s, "Ever danced with the devil in the pale moonlight?");
// response: {'EXIT', exit_reason::user_shutdown}
s->receive_loop(others() >> CPPA_UNEXPECTED_MSG_CB(s));
});
self->receive (
on_arg_match >> [&](const down_msg& dm) {
CPPA_CHECK_EQUAL(dm.reason, exit_reason::user_shutdown);
},
others() >> CPPA_UNEXPECTED_MSG_CB_REF(self)
);
}
} // namespace <anonymous>
int main() {
CPPA_TEST(test_sync_send);
test_sync_send();
await_all_actors_done();
CPPA_CHECKPOINT();
shutdown();
// shutdown warning about unused function (only performs compile-time check)
static_cast<void>(compile_time_optional_variant_check);
return CPPA_TEST_RESULT();
}
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