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Copy pathtest_sync_send.cpp
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309 lines (288 loc) · 11.8 KB
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#include "test.hpp"
#include "cppa/cppa.hpp"
using namespace std;
using namespace cppa;
using namespace cppa::placeholders;
struct sync_mirror : sb_actor<sync_mirror> {
behavior init_state = (
others() >> [] { reply_tuple(self->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")) >> [] { reply(0.0f); },
on(atom("i")) >> [] { reply(0); }
);
};
struct popular_actor : event_based_actor { // popular actors have a buddy
actor_ptr m_buddy;
popular_actor(const actor_ptr& buddy) : m_buddy(buddy) { }
inline const actor_ptr& buddy() const { return m_buddy; }
void report_failure() {
send(buddy(), atom("failure"));
self->quit();
}
};
/******************************************************************************\
* test case 1: *
* *
* A B C *
* | | | *
* | --(sync_send)--> | | *
* | | --(forward)----> | *
* | X |---\ *
* | | | *
* | |<--/ *
* | <-------------(reply)-------------- | *
* X X *
\******************************************************************************/
struct A : popular_actor {
A(const actor_ptr& buddy) : popular_actor(buddy) { }
void init() {
become (
on(atom("go"), arg_match) >> [=](const actor_ptr& 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_ptr& buddy) : popular_actor(buddy) { }
void init() {
become (
others() >> [=] {
CPPA_CHECKPOINT();
forward_to(buddy());
quit();
}
);
}
};
struct C : sb_actor<C> {
behavior init_state = (
on(atom("gogo")) >> [=] {
reply(atom("gogogo"));
self->quit();
}
);
};
/******************************************************************************\
* test case 2: *
* *
* A D C *
* | | | *
* | --(sync_send)--> | | *
* | | --(sync_send)--> | *
* | | |---\ *
* | | | | *
* | | |<--/ *
* | | <---(reply)----- | *
* | <---(reply)----- | *
* X X *
\******************************************************************************/
struct D : popular_actor {
D(const actor_ptr& buddy) : popular_actor(buddy) { }
void init() {
become (
others() >> [=] {
response_handle handle = make_response_handle();
sync_send_tuple(buddy(), last_dequeued()).then([=] {
reply_to(handle, last_dequeued());
quit();
});
}
);
}
};
/******************************************************************************\
* test case 3: *
* *
* Client Server Worker *
* | | | *
* | | <---(idle)------ | *
* | ---(request)---> | | *
* | | ---(request)---> | *
* | | |---\ *
* | X | | *
* | |<--/ *
* | <------------(response)------------ | *
* X *
\******************************************************************************/
struct server : event_based_actor {
void init() {
auto die = [=] { quit(exit_reason::user_defined); };
become (
on(atom("idle")) >> [=] {
auto worker = last_sender();
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
);
}
};
int main() {
CPPA_TEST(test_sync_send);
self->on_sync_failure([] {
CPPA_FAILURE("received: " << to_string(self->last_dequeued()));
});
spawn<monitored + blocking_api>([] {
CPPA_LOGC_TRACE("NONE", "main$sync_failure_test", "id = " << self->id());
int invocations = 0;
auto foi = spawn<float_or_int, linked>();
send(foi, atom("i"));
receive(on_arg_match >> [](int i) { CPPA_CHECK_EQUAL(i, 0); });
self->on_sync_failure([] {
CPPA_FAILURE("received: " << to_string(self->last_dequeued()));
});
sync_send(foi, atom("i")).then(
[&](int i) { CPPA_CHECK_EQUAL(i, 0); ++invocations; },
[&](float) { CPPA_UNEXPECTED_MSG(); }
)
.continue_with([&] {
sync_send(foi, atom("f")).then(
[&](int) { CPPA_UNEXPECTED_MSG(); },
[&](float f) { CPPA_CHECK_EQUAL(f, 0); ++invocations; }
);
});
self->exec_behavior_stack();
CPPA_CHECK_EQUAL(invocations, 2);
CPPA_PRINT("trigger sync failure");
// provoke invocation of self->handle_sync_failure()
bool sync_failure_called = false;
bool int_handler_called = false;
self->on_sync_failure([&] {
sync_failure_called = true;
});
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);
self->quit(exit_reason::user_defined);
});
receive (
on(atom("DOWN"), exit_reason::user_defined) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
auto mirror = spawn<sync_mirror>();
bool continuation_called = false;
sync_send(mirror, 42)
.then([](int value) { CPPA_CHECK_EQUAL(value, 42); })
.continue_with([&] { continuation_called = true; });
self->exec_behavior_stack();
CPPA_CHECK_EQUAL(continuation_called, true);
send_exit(mirror, exit_reason::user_defined);
await_all_others_done();
CPPA_CHECKPOINT();
auto await_success_message = [&] {
receive (
on(atom("success")) >> CPPA_CHECKPOINT_CB(),
on(atom("failure")) >> CPPA_FAILURE_CB("A didn't receive sync response"),
on(atom("DOWN"), arg_match).when(_x2 != exit_reason::normal)
>> [&](uint32_t err) {
CPPA_FAILURE("A exited for reason " << err);
}
);
};
send(spawn<A, monitored>(self), atom("go"), spawn<B>(spawn<C>()));
await_success_message();
CPPA_CHECKPOINT();
await_all_others_done();
send(spawn<A, monitored>(self), atom("go"), spawn<D>(spawn<C>()));
await_success_message();
CPPA_CHECKPOINT();
await_all_others_done();
CPPA_CHECKPOINT();
timed_sync_send(self, std::chrono::milliseconds(50), atom("NoWay")).await(
on(atom("TIMEOUT")) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
// we should have received two DOWN messages with normal exit reason
// plus 'NoWay'
int i = 0;
receive_for(i, 3) (
on(atom("DOWN"), exit_reason::normal) >> CPPA_CHECKPOINT_CB(),
on(atom("NoWay")) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB(),
after(std::chrono::seconds(0)) >> CPPA_UNEXPECTED_TOUT_CB()
);
CPPA_CHECKPOINT();
// mailbox should be empty now
receive (
others() >> CPPA_UNEXPECTED_MSG_CB(),
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());
timed_sync_send(c, std::chrono::milliseconds(500), atom("HiThere"))
.then(CPPA_FAILURE_CB("C replied to 'HiThere'!"))
.continue_with(CPPA_FAILURE_CB("bad continuation"));
self->exec_behavior_stack();
CPPA_CHECK_EQUAL(timeout_occured, true);
self->on_sync_failure(CPPA_UNEXPECTED_MSG_CB());
sync_send(c, atom("gogo")).then(CPPA_CHECKPOINT_CB())
.continue_with(CPPA_CHECKPOINT_CB());
self->exec_behavior_stack();
send_exit(c, exit_reason::user_defined);
await_all_others_done();
CPPA_CHECKPOINT();
// test use case 3
spawn<monitored + blocking_api>([] { // client
auto s = spawn<server, linked>(); // server
auto w = spawn<linked>([] { // worker
become(on(atom("request")) >> []{ reply(atom("response")); });
});
// first 'idle', then 'request'
send_as(w, s, atom("idle"));
sync_send(s, atom("request")).await(
on(atom("response")) >> [=] {
CPPA_CHECKPOINT();
CPPA_CHECK_EQUAL(self->last_sender(), w);
},
others() >> CPPA_UNEXPECTED_MSG_CB()
);
// first 'request', then 'idle'
auto handle = sync_send(s, atom("request"));
send_as(w, s, atom("idle"));
receive_response(handle) (
on(atom("response")) >> [=] {
CPPA_CHECKPOINT();
CPPA_CHECK_EQUAL(self->last_sender(), w);
},
others() >> CPPA_UNEXPECTED_MSG_CB()
);
send(s, "Ever danced with the devil in the pale moonlight?");
// response: {'EXIT', exit_reason::user_defined}
receive_loop(others() >> CPPA_UNEXPECTED_MSG_CB());
});
receive (
on(atom("DOWN"), exit_reason::user_defined) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
await_all_others_done();
CPPA_CHECKPOINT();
shutdown();
return CPPA_TEST_RESULT();
}
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