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/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2017 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* 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. *
******************************************************************************/
#define CAF_SUITE intrusive.lifo_inbox
#include "caf/intrusive/lifo_inbox.hpp"
#include "caf/test/unit_test.hpp"
#include <memory>
#include "caf/intrusive/singly_linked.hpp"
using namespace caf;
using namespace caf::intrusive;
namespace {
struct inode : singly_linked<inode> {
int value;
inode(int x = 0) : value(x) {
// nop
}
};
std::string to_string(const inode& x) {
return std::to_string(x.value);
}
struct inode_policy {
using mapped_type = inode;
using task_size_type = int;
using deficit_type = int;
using deleter_type = std::default_delete<mapped_type>;
using unique_pointer = std::unique_ptr<mapped_type, deleter_type>;
};
using inbox_type = lifo_inbox<inode_policy>;
struct fixture {
inode_policy policy;
inbox_type inbox;
void fill(inbox_type&) {
// nop
}
template <class T, class... Ts>
void fill(inbox_type& i, T x, Ts... xs) {
i.emplace_front(x);
fill(i, xs...);
}
std::string fetch() {
std::string result;
inode_policy::unique_pointer ptr{inbox.take_head()};
while (ptr != nullptr) {
auto next = ptr->next;
result += to_string(*ptr);
ptr.reset(inbox_type::promote(next));
}
return result;
}
std::string close_and_fetch() {
std::string result;
auto f = [&](inode* x) {
result += to_string(*x);
delete x;
};
inbox.close(f);
return result;
}
};
} // namespace
CAF_TEST_FIXTURE_SCOPE(lifo_inbox_tests, fixture)
CAF_TEST(default_constructed) {
CAF_REQUIRE_EQUAL(inbox.empty(), true);
}
CAF_TEST(push_front) {
fill(inbox, 1, 2, 3);
CAF_REQUIRE_EQUAL(close_and_fetch(), "321");
CAF_REQUIRE_EQUAL(inbox.closed(), true);
}
CAF_TEST(push_after_close) {
inbox.close();
auto res = inbox.push_front(new inode(0));
CAF_REQUIRE_EQUAL(res, inbox_result::queue_closed);
}
CAF_TEST(unblock) {
CAF_REQUIRE_EQUAL(inbox.try_block(), true);
auto res = inbox.push_front(new inode(1));
CAF_REQUIRE_EQUAL(res, inbox_result::unblocked_reader);
res = inbox.push_front(new inode(2));
CAF_REQUIRE_EQUAL(res, inbox_result::success);
CAF_REQUIRE_EQUAL(close_and_fetch(), "21");
}
CAF_TEST(await) {
std::mutex mx;
std::condition_variable cv;
std::thread t{[&] { inbox.synchronized_emplace_front(mx, cv, 1); }};
inbox.synchronized_await(mx, cv);
CAF_REQUIRE_EQUAL(close_and_fetch(), "1");
t.join();
}
CAF_TEST(timed_await) {
std::mutex mx;
std::condition_variable cv;
auto tout = std::chrono::system_clock::now();
tout += std::chrono::microseconds(1);
auto res = inbox.synchronized_await(mx, cv, tout);
CAF_REQUIRE_EQUAL(res, false);
fill(inbox, 1);
res = inbox.synchronized_await(mx, cv, tout);
CAF_REQUIRE_EQUAL(res, true);
CAF_CHECK_EQUAL(fetch(), "1");
tout += std::chrono::hours(1000);
std::thread t{[&] { inbox.synchronized_emplace_front(mx, cv, 2); }};
res = inbox.synchronized_await(mx, cv, tout);
CAF_REQUIRE_EQUAL(res, true);
CAF_REQUIRE_EQUAL(close_and_fetch(), "2");
t.join();
}
CAF_TEST_FIXTURE_SCOPE_END()
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