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#include <cstdio>
#include <thread>
#include <atomic>
#include "salticidae/event.h"
using salticidae::TimerEvent;
void test_mpsc(int nproducers = 16, int nops = 100000, size_t burst_size = 128) {
size_t total = nproducers * nops;
salticidae::EventContext ec;
std::atomic<size_t> collected(0);
using queue_t = salticidae::MPSCQueueEventDriven<int>;
queue_t q;
q.reg_handler(ec, [&collected, burst_size](queue_t &q) {
size_t cnt = burst_size;
int x;
while (q.try_dequeue(x))
{
printf("%d\n", x);
collected.fetch_add(1);
if (!--cnt) return true;
}
return false;
});
std::vector<std::thread> producers;
std::thread consumer([&collected, total, &ec]() {
TimerEvent timer(ec, [&ec, &collected, total](TimerEvent &) {
if (collected.load() == total) ec.stop();
});
timer.add(1);
ec.dispatch();
});
for (int i = 0; i < nproducers; i++)
{
producers.emplace(producers.end(), std::thread([&q, nops, i, nproducers]() {
int x = i;
for (int j = 0; j < nops; j++)
{
//usleep(rand() / double(RAND_MAX) * 100);
q.enqueue(x);
x += nproducers;
}
}));
}
for (auto &t: producers) t.join();
fprintf(stderr, "producers terminate\n");
consumer.join();
fprintf(stderr, "consumers terminate\n");
}
/*
void test_mpmc(int nproducers = 16, int nconsumers = 4, int nops = 100000) {
size_t total = nproducers * nops;
salticidae::MPMCQueueEventDriven<int> q;
std::vector<std::thread> producers;
std::vector<std::thread> consumers;
std::vector<salticidae::EventContext> ecs;
std::atomic<size_t> collected(0);
ecs.resize(nconsumers);
for (int i = 0; i < nconsumers; i++)
{
q.listen(ecs[i], [&collected](int x) {
//usleep(10);
printf("%d\n", x);
collected.fetch_add(1);
});
}
for (int i = 0; i < nconsumers; i++)
{
consumers.emplace(consumers.end(), std::thread(
[&collected, total, &ec = ecs[i]]() {
salticidae::Event timer(ec, -1, EV_TIMEOUT | EV_PERSIST,
[&ec, &collected, total](int, short) {
if (collected.load() == total) ec.stop();
});
timer.add_with_timeout(1);
ec.dispatch();
}));
}
for (int i = 0; i < nproducers; i++)
{
producers.emplace(producers.end(), std::thread([&q, nops, i, nproducers]() {
int x = i;
for (int j = 0; j < nops; j++)
{
//usleep(rand() / double(RAND_MAX) * 100);
q.enqueue(x);
x += nproducers;
}
}));
}
for (auto &t: producers) t.join();
fprintf(stderr, "producers terminate\n");
for (auto &t: consumers) t.join();
fprintf(stderr, "consumers terminate\n");
}
*/
int main() {
test_mpsc();
//test_mpmc();
return 0;
}
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