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/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright 2011-2018 Dominik Charousset *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#include "caf/config.hpp"
// this suite tests whether actors terminate as expect in several use cases
#define CAF_SUITE thread_hook
#include "caf/all.hpp"
#include "caf/test/unit_test.hpp"
using namespace caf;
namespace {
using atomic_count = std::atomic<size_t>;
size_t assumed_thread_count;
size_t assumed_init_calls;
struct dummy_thread_hook : thread_hook {
void init(actor_system&) override {
// nop
}
void thread_started() override {
// nop
}
void thread_terminates() override {
// nop
}
};
class counting_thread_hook : public thread_hook {
public:
counting_thread_hook()
: count_init_{0},
count_thread_started_{0},
count_thread_terminates_{0} {
// nop
}
~counting_thread_hook() override {
CAF_CHECK_EQUAL(count_init_, assumed_init_calls);
CAF_CHECK_EQUAL(count_thread_started_, assumed_thread_count);
CAF_CHECK_EQUAL(count_thread_terminates_, assumed_thread_count);
}
void init(actor_system&) override {
++count_init_;
}
void thread_started() override {
++count_thread_started_;
}
void thread_terminates() override {
++count_thread_terminates_;
}
private:
atomic_count count_init_;
atomic_count count_thread_started_;
atomic_count count_thread_terminates_;
};
template <class Hook>
struct config : actor_system_config {
config() {
add_thread_hook<Hook>();
set("logger.verbosity", atom("quiet"));
}
};
template <class Hook>
struct fixture {
config<Hook> cfg;
actor_system sys;
fixture() : sys(cfg) {
// nop
}
};
} // namespace
CAF_TEST(counting_no_system) {
assumed_init_calls = 0;
actor_system_config cfg;
cfg.add_thread_hook<counting_thread_hook>();
}
CAF_TEST_FIXTURE_SCOPE(dummy_hook, fixture<dummy_thread_hook>)
CAF_TEST(counting_no_args) {
// nop
}
CAF_TEST_FIXTURE_SCOPE_END()
CAF_TEST_FIXTURE_SCOPE(counting_hook, fixture<counting_thread_hook>)
CAF_TEST(counting_system_without_actor) {
assumed_init_calls = 1;
assumed_thread_count = get_or(cfg, "scheduler.max-threads",
defaults::scheduler::max_threads)
+ 1; // caf.clock
auto& sched = sys.scheduler();
if (sched.detaches_utility_actors())
assumed_thread_count += sched.num_utility_actors();
}
CAF_TEST(counting_system_with_actor) {
assumed_init_calls = 1;
assumed_thread_count = get_or(cfg, "scheduler.max-threads",
defaults::scheduler::max_threads)
+ 2; // caf.clock and detached actor
auto& sched = sys.scheduler();
if (sched.detaches_utility_actors())
assumed_thread_count += sched.num_utility_actors();
sys.spawn<detached>([] {});
sys.spawn([] {});
}
CAF_TEST_FIXTURE_SCOPE_END()
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