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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 tracing_data
#include "caf/tracing_data.hpp"
#include "core-test.hpp"
#include <vector>
#include "caf/actor_profiler.hpp"
#include "caf/binary_deserializer.hpp"
#include "caf/binary_serializer.hpp"
#include "caf/config.hpp"
#include "caf/tracing_data_factory.hpp"
#ifdef CAF_ENABLE_ACTOR_PROFILER
using std::string;
using namespace caf;
namespace {
class dummy_tracing_data : public tracing_data {
public:
string value;
dummy_tracing_data(string value) : value(std::move(value)) {
// nop
}
bool serialize(serializer& sink) const override {
return sink.apply(value);
}
bool serialize(binary_serializer& sink) const override {
return sink.apply(value);
}
};
class dummy_tracing_data_factory : public tracing_data_factory {
public:
bool deserialize(deserializer& source,
std::unique_ptr<tracing_data>& dst) const override {
return deserialize_impl(source, dst);
}
bool deserialize(binary_deserializer& source,
std::unique_ptr<tracing_data>& dst) const override {
return deserialize_impl(source, dst);
}
private:
template <class Deserializer>
bool deserialize_impl(Deserializer& source,
std::unique_ptr<tracing_data>& dst) const {
string value;
if (!source.apply(value))
return false;
dst.reset(new dummy_tracing_data(std::move(value)));
return true;
}
};
class dummy_profiler : public actor_profiler {
public:
void add_actor(const local_actor&, const local_actor*) override {
// nop
}
void remove_actor(const local_actor&) override {
// nop
}
void before_processing(const local_actor&, const mailbox_element&) override {
// nop
}
void after_processing(const local_actor&, invoke_message_result) override {
// nop
}
void before_sending(const local_actor& self,
mailbox_element& element) override {
element.tracing_id.reset(new dummy_tracing_data(self.name()));
}
void before_sending_scheduled(const local_actor& self,
actor_clock::time_point,
mailbox_element& element) override {
element.tracing_id.reset(new dummy_tracing_data(self.name()));
}
};
actor_system_config& init(actor_system_config& cfg, actor_profiler& profiler,
tracing_data_factory& factory) {
test_coordinator_fixture<>::init_config(cfg);
cfg.profiler = &profiler;
cfg.tracing_context = &factory;
return cfg;
}
struct fixture {
using scheduler_type = caf::scheduler::test_coordinator;
fixture()
: sys(init(cfg, profiler, factory)),
sched(dynamic_cast<scheduler_type&>(sys.scheduler())) {
run();
}
void run() {
sched.run();
}
dummy_profiler profiler;
dummy_tracing_data_factory factory;
actor_system_config cfg;
actor_system sys;
scheduler_type& sched;
};
const std::string& tracing_id(local_actor* self) {
auto element = self->current_mailbox_element();
if (element == nullptr)
CAF_FAIL("current_mailbox_element == null");
auto tid = element->tracing_id.get();
if (tid == nullptr)
CAF_FAIL("tracing_id == null");
auto dummy_tid = dynamic_cast<dummy_tracing_data*>(tid);
if (dummy_tid == nullptr)
CAF_FAIL("dummy_tracing_id == null");
return dummy_tid->value;
}
# define NAMED_ACTOR_STATE(type) \
struct type##_state { \
static inline const char* name = #type; \
}
NAMED_ACTOR_STATE(alice);
NAMED_ACTOR_STATE(bob);
NAMED_ACTOR_STATE(carl);
} // namespace
BEGIN_FIXTURE_SCOPE(fixture)
CAF_TEST(profilers inject tracing data into asynchronous messages) {
MESSAGE("spawn a foo and a bar");
auto carl_fun = [](stateful_actor<carl_state>* self) -> behavior {
return {
[=](const string& str) {
CHECK_EQ(str, "hello carl");
CHECK_EQ(tracing_id(self), "bob");
},
};
};
auto bob_fun = [](stateful_actor<bob_state>* self, actor carl) -> behavior {
return {
[=](const string& str) {
CHECK_EQ(str, "hello bob");
CHECK_EQ(tracing_id(self), "alice");
self->send(carl, "hello carl");
},
};
};
auto alice_fun = [](stateful_actor<alice_state>* self, actor bob) {
self->send(bob, "hello bob");
};
sys.spawn(alice_fun, sys.spawn(bob_fun, sys.spawn(carl_fun)));
run();
}
CAF_TEST(tracing data is serializable) {
byte_buffer buf;
binary_serializer sink{sys, buf};
tracing_data_ptr data{new dummy_tracing_data("iTrace")};
CHECK(sink.apply(data));
binary_deserializer source{sys, buf};
tracing_data_ptr copy;
CHECK(source.apply(copy));
CAF_REQUIRE_NOT_EQUAL(copy.get(), nullptr);
CHECK_EQ(dynamic_cast<dummy_tracing_data&>(*copy).value, "iTrace");
}
END_FIXTURE_SCOPE()
#endif // CAF_ENABLE_ACTOR_PROFILER
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