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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2020 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/**
* Test Dispatcher class and speed
*/
#include <config.h>
#include <cstdio>
#include <cstdlib>
#include "basic-event-loop.h"
#include "test-glib-compat.h"
#include "reds.h"
#include "dispatcher.h"
#include "win-alarm.h"
// iterations to run for each test, useful also to check the speed
static unsigned iterations = 100;
static SpiceCoreInterface *core;
static SpiceCoreInterfaceInternal core_int;
static red::shared_ptr<Dispatcher> dispatcher;
static SpiceWatch *watch;
// incremental number we use during the test, each message sent is incremented
static unsigned num;
using TestFixture = int;
static void test_dispatcher_setup(TestFixture *fixture, gconstpointer user_data)
{
num = 0;
dispatcher.reset();
g_assert_null(core);
core = basic_event_loop_init();
g_assert_nonnull(core);
core_int = core_interface_adapter;
core_int.public_interface = core;
dispatcher = red::make_shared<Dispatcher>(10);
// TODO not create Reds, just the internal interface ??
watch = dispatcher->create_watch(&core_int);
}
static void test_dispatcher_teardown(TestFixture *fixture, gconstpointer user_data)
{
g_assert_nonnull(core);
red_watch_remove(watch);
watch = nullptr;
dispatcher.reset();
basic_event_loop_destroy();
core = nullptr;
}
// test message to sent
struct Msg {
uint64_t num;
void *dummy;
};
// message handler to mark stop, stop the event loop
static void msg_end(void *, Msg *msg)
{
g_assert_cmpint(num, ==, iterations);
basic_event_loop_quit();
}
// message handler to check message number
static void msg_check(void *, Msg *msg)
{
g_assert_cmpint(msg->num, ==, num);
++num;
}
static void *thread_proc(void *arg)
{
// the argument is number of messages with NACK to send
int n_nack = GPOINTER_TO_INT(arg);
g_assert_cmpint(n_nack, >=, 0);
g_assert_cmpint(n_nack, <=, 10);
auto start = spice_get_monotonic_time_ns();
// repeat sending messages
for (unsigned n = 0; n < iterations; ++n) {
Msg msg{n, nullptr};
dispatcher->send_message_custom(msg_check, &msg, (n % 10) >= n_nack);
}
// one last sync to wait
Msg msg{0, nullptr};
dispatcher->send_message_custom(msg_end, &msg, true);
// measure time
auto cost = spice_get_monotonic_time_ns() - start;
printf("With ACK/NACK %d/%d time spent %gus each over %u iterations\n",
10 - n_nack, n_nack,
cost / 1000.0 / iterations, iterations);
return nullptr;
}
static void test_dispatcher(TestFixture *fixture, gconstpointer user_data)
{
pthread_t th;
g_assert_cmpint(pthread_create(&th, nullptr, thread_proc, (void *) user_data), ==, 0);
// start all test
alarm(20);
basic_event_loop_mainloop();
alarm(0);
pthread_join(th, nullptr);
}
int main(int argc, char *argv[])
{
g_test_init(&argc, &argv, NULL);
// override number of iteration passing a parameter
if (argc >= 2 && atoi(argv[1]) > 10) {
iterations = atoi(argv[1]);
}
for (int i = 0; i <= 10; ++i) {
char name[64];
sprintf(name, "/server/dispatcher/%d", i);
g_test_add(name, TestFixture, GINT_TO_POINTER(i), test_dispatcher_setup,
test_dispatcher, test_dispatcher_teardown);
}
return g_test_run();
}
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