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/*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Alexandros Frantzis <alexandros.frantzis@canonical.com>
*/
#include "mir/asio_main_loop.h"
#include <gtest/gtest.h>
#include <thread>
#include <atomic>
#include <sys/types.h>
#include <unistd.h>
TEST(AsioMainLoopTest, signal_handled)
{
int const signum{SIGUSR1};
int handled_signum{0};
mir::AsioMainLoop ml;
ml.register_signal_handler(
{signum},
[&handled_signum, &ml](int sig)
{
handled_signum = sig;
ml.stop();
});
kill(getpid(), signum);
ml.run();
ASSERT_EQ(signum, handled_signum);
}
TEST(AsioMainLoopTest, multiple_signals_handled)
{
std::vector<int> const signals{SIGUSR1, SIGUSR2};
size_t const num_signals_to_send{10};
std::vector<int> handled_signals;
std::atomic<unsigned int> num_handled_signals{0};
mir::AsioMainLoop ml;
ml.register_signal_handler(
{signals[0], signals[1]},
[&handled_signals, &num_handled_signals](int sig)
{
handled_signals.push_back(sig);
++num_handled_signals;
});
std::thread signal_sending_thread(
[&ml, num_signals_to_send, &signals, &num_handled_signals]
{
for (size_t i = 0; i < num_signals_to_send; i++)
{
kill(getpid(), signals[i % signals.size()]);
while (num_handled_signals <= i) std::this_thread::yield();
}
ml.stop();
});
ml.run();
signal_sending_thread.join();
ASSERT_EQ(num_signals_to_send, handled_signals.size());
for (size_t i = 0; i < num_signals_to_send; i++)
ASSERT_EQ(signals[i % signals.size()], handled_signals[i]) << " index " << i;
}
TEST(AsioMainLoopTest, all_registered_handlers_are_called)
{
int const signum{SIGUSR1};
std::vector<int> handled_signum{0,0,0};
mir::AsioMainLoop ml;
ml.register_signal_handler(
{signum},
[&handled_signum, &ml](int sig)
{
handled_signum[0] = sig;
if (handled_signum[0] != 0 &&
handled_signum[1] != 0 &&
handled_signum[2] != 0)
{
ml.stop();
}
});
ml.register_signal_handler(
{signum},
[&handled_signum, &ml](int sig)
{
handled_signum[1] = sig;
if (handled_signum[0] != 0 &&
handled_signum[1] != 0 &&
handled_signum[2] != 0)
{
ml.stop();
}
});
ml.register_signal_handler(
{signum},
[&handled_signum, &ml](int sig)
{
handled_signum[2] = sig;
if (handled_signum[0] != 0 &&
handled_signum[1] != 0 &&
handled_signum[2] != 0)
{
ml.stop();
}
});
kill(getpid(), signum);
ml.run();
ASSERT_EQ(signum, handled_signum[0]);
ASSERT_EQ(signum, handled_signum[1]);
ASSERT_EQ(signum, handled_signum[2]);
}
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