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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include <iostream>
#include <unistd.h>
#include "gtest/gtest.h"
#include "include/Context.h"
#include "global/global_init.h"
#include "global/global_context.h"
#include "test/immutable_object_cache/test_common.h"
#include "tools/immutable_object_cache/CacheClient.h"
#include "tools/immutable_object_cache/CacheServer.h"
using namespace ceph::immutable_obj_cache;
class TestCommunication :public ::testing::Test {
public:
CacheServer* m_cache_server;
std::thread* srv_thd;
CacheClient* m_cache_client;
std::string m_local_path;
pthread_mutex_t m_mutex;
pthread_cond_t m_cond;
std::atomic<uint64_t> m_send_request_index;
std::atomic<uint64_t> m_recv_ack_index;
WaitEvent m_wait_event;
unordered_set<std::string> m_hit_entry_set;
TestCommunication()
: m_cache_server(nullptr), m_cache_client(nullptr),
m_local_path("/tmp/ceph_test_domain_socket"),
m_send_request_index(0), m_recv_ack_index(0)
{}
~TestCommunication() {}
static void SetUpTestCase() {}
static void TearDownTestCase() {}
void SetUp() override {
std::remove(m_local_path.c_str());
m_cache_server = new CacheServer(g_ceph_context, m_local_path,
[this](CacheSession* sid, ObjectCacheRequest* req){
handle_request(sid, req);
});
ASSERT_TRUE(m_cache_server != nullptr);
srv_thd = new std::thread([this]() {m_cache_server->run();});
m_cache_client = new CacheClient(m_local_path, g_ceph_context);
ASSERT_TRUE(m_cache_client != nullptr);
m_cache_client->run();
while (true) {
if (0 == m_cache_client->connect()) {
break;
}
}
auto ctx = new LambdaContext([](int reg) {
ASSERT_TRUE(reg == 0);
});
m_cache_client->register_client(ctx);
ASSERT_TRUE(m_cache_client->is_session_work());
}
void TearDown() override {
delete m_cache_client;
m_cache_server->stop();
if (srv_thd->joinable()) {
srv_thd->join();
}
delete m_cache_server;
std::remove(m_local_path.c_str());
delete srv_thd;
}
void handle_request(CacheSession* session_id, ObjectCacheRequest* req) {
switch (req->get_request_type()) {
case RBDSC_REGISTER: {
ObjectCacheRequest* reply = new ObjectCacheRegReplyData(RBDSC_REGISTER_REPLY, req->seq);
session_id->send(reply);
break;
}
case RBDSC_READ: {
ObjectCacheReadData* read_req = (ObjectCacheReadData*)req;
ObjectCacheRequest* reply = nullptr;
if (m_hit_entry_set.find(read_req->oid) == m_hit_entry_set.end()) {
reply = new ObjectCacheReadRadosData(RBDSC_READ_RADOS, req->seq);
} else {
reply = new ObjectCacheReadReplyData(RBDSC_READ_REPLY, req->seq, "/fakepath");
}
session_id->send(reply);
break;
}
}
}
// times: message number
// queue_depth : imitate message queue depth
// thinking : imitate handing message time
void startup_pingpong_testing(uint64_t times, uint64_t queue_depth, int thinking) {
m_send_request_index.store(0);
m_recv_ack_index.store(0);
for (uint64_t index = 0; index < times; index++) {
auto ctx = make_gen_lambda_context<ObjectCacheRequest*, std::function<void(ObjectCacheRequest*)>>
([this, thinking, times](ObjectCacheRequest* ack){
if (thinking != 0) {
usleep(thinking); // handling message
}
m_recv_ack_index++;
if (m_recv_ack_index == times) {
m_wait_event.signal();
}
});
// simple queue depth
while (m_send_request_index - m_recv_ack_index > queue_depth) {
usleep(1);
}
m_cache_client->lookup_object("pool_nspace", 1, 2, 3, "object_name", std::move(ctx));
m_send_request_index++;
}
m_wait_event.wait();
}
bool startup_lookupobject_testing(std::string pool_nspace, std::string object_id) {
bool hit;
auto ctx = make_gen_lambda_context<ObjectCacheRequest*, std::function<void(ObjectCacheRequest*)>>
([this, &hit](ObjectCacheRequest* ack){
hit = ack->type == RBDSC_READ_REPLY;
m_wait_event.signal();
});
m_cache_client->lookup_object(pool_nspace, 1, 2, 3, object_id, std::move(ctx));
m_wait_event.wait();
return hit;
}
void set_hit_entry_in_fake_lru(std::string cache_file_name) {
if (m_hit_entry_set.find(cache_file_name) == m_hit_entry_set.end()) {
m_hit_entry_set.insert(cache_file_name);
}
}
};
TEST_F(TestCommunication, test_pingpong) {
startup_pingpong_testing(64, 16, 0);
ASSERT_TRUE(m_send_request_index == m_recv_ack_index);
startup_pingpong_testing(200, 128, 0);
ASSERT_TRUE(m_send_request_index == m_recv_ack_index);
}
TEST_F(TestCommunication, test_lookup_object) {
m_hit_entry_set.clear();
srand(time(0));
uint64_t random_hit = random();
for (uint64_t i = 50; i < 100; i++) {
if ((random_hit % i) == 0) {
set_hit_entry_in_fake_lru(std::to_string(i));
}
}
for (uint64_t i = 50; i < 100; i++) {
if ((random_hit % i) != 0) {
ASSERT_FALSE(startup_lookupobject_testing("test_nspace", std::to_string(i)));
} else {
ASSERT_TRUE(startup_lookupobject_testing("test_nspace", std::to_string(i)));
}
}
}
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