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Copy pathtest_remote_actor.cpp
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Copy pathtest_remote_actor.cpp
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434 lines (395 loc) · 13.3 KB
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#include <thread>
#include <string>
#include <cstring>
#include <sstream>
#include <iostream>
#include <functional>
#include "test.hpp"
#include "ping_pong.hpp"
#include "cppa/cppa.hpp"
#include "cppa/logging.hpp"
#include "cppa/exception.hpp"
using namespace std;
using namespace cppa;
namespace {
typedef std::pair<std::string, std::string> string_pair;
typedef vector<actor_ptr> actor_vector;
vector<string_pair> get_kv_pairs(int argc, char** argv, int begin = 1) {
vector<string_pair> result;
for (int i = begin; i < argc; ++i) {
auto vec = split(argv[i], '=');
auto eq_fun = [&](const string_pair& p) { return p.first == vec[0]; };
if (vec.size() != 2) {
CPPA_PRINTERR("\"" << argv[i] << "\" is not a key-value pair");
}
else if (any_of(result.begin(), result.end(), eq_fun)) {
CPPA_PRINTERR("key \"" << vec[0] << "\" is already defined");
}
else {
result.emplace_back(vec[0], vec[1]);
}
}
return result;
}
void reflector() {
CPPA_SET_DEBUG_NAME("reflector" << self->id());
become (
others() >> [=] {
CPPA_LOGF_INFO("reflect and quit");
reply_tuple(self->last_dequeued());
self->quit();
}
);
}
void spawn5_server_impl(actor_ptr client, group_ptr grp) {
CPPA_LOGF_TRACE(CPPA_TARG(client, to_string)
<< ", " << CPPA_TARG(grp, to_string));
spawn_in_group(grp, reflector);
spawn_in_group(grp, reflector);
CPPA_LOGF_INFO("send {'Spawn5'} and await {'ok', actor_vector}");
sync_send(client, atom("Spawn5"), grp).then(
on(atom("ok"), arg_match) >> [=](const actor_vector& vec) {
CPPA_LOGF_INFO("received vector with " << vec.size() << " elements");
send(grp, "Hello reflectors!", 5.0);
if (vec.size() != 5) {
CPPA_PRINTERR("remote client did not spawn five reflectors!");
}
for (auto& a : vec) self->monitor(a);
},
others() >> [] {
CPPA_UNEXPECTED_MSG();
self->quit(exit_reason::unhandled_exception);
},
after(chrono::seconds(10)) >> [] {
CPPA_UNEXPECTED_TOUT();
self->quit(exit_reason::unhandled_exception);
}
)
.continue_with([=] {
CPPA_PRINT("wait for reflected messages");
// receive seven reply messages (2 local, 5 remote)
auto replies = std::make_shared<int>(0);
become (
on("Hello reflectors!", 5.0) >> [=] {
if (++*replies == 7) {
CPPA_PRINT("wait for DOWN messages");
auto downs = std::make_shared<int>(0);
become (
on(atom("DOWN"), arg_match) >> [=](std::uint32_t reason) {
if (reason != exit_reason::normal) {
CPPA_PRINTERR("reflector exited for non-normal exit reason!");
}
if (++*downs == 5) {
CPPA_CHECKPOINT();
send(client, atom("Spawn5Done"));
self->quit();
}
},
others() >> [] {
CPPA_UNEXPECTED_MSG();
self->quit(exit_reason::unhandled_exception);
},
after(chrono::seconds(2)) >> [] {
CPPA_UNEXPECTED_TOUT();
self->quit(exit_reason::unhandled_exception);
}
);
}
},
after(std::chrono::seconds(2)) >> [] {
CPPA_UNEXPECTED_TOUT();
self->quit(exit_reason::unhandled_exception);
}
);
});
}
// receive seven reply messages (2 local, 5 remote)
void spawn5_server(actor_ptr client, bool inverted) {
CPPA_SET_DEBUG_NAME("spawn5_server");
if (!inverted) spawn5_server_impl(client, group::get("local", "foobar"));
else {
CPPA_LOGF_INFO("request group");
sync_send(client, atom("GetGroup")).then (
[=](const group_ptr& remote_group) {
spawn5_server_impl(client, remote_group);
}
);
}
}
void spawn5_client() {
CPPA_SET_DEBUG_NAME("spawn5_client");
become (
on(atom("GetGroup")) >> [] {
CPPA_LOGF_INFO("received {'GetGroup'}");
reply(group::get("local", "foobar"));
},
on(atom("Spawn5"), arg_match) >> [=](const group_ptr& grp) {
CPPA_LOGF_INFO("received {'Spawn5'}");
actor_vector vec;
for (int i = 0; i < 5; ++i) {
vec.push_back(spawn_in_group(grp, reflector));
}
reply(atom("ok"), std::move(vec));
},
on(atom("Spawn5Done")) >> [] {
CPPA_LOGF_INFO("received {'Spawn5Done'}");
self->quit();
}
);
}
} // namespace <anonymous>
void verbose_terminate() {
try { if (std::uncaught_exception()) throw; }
catch (std::exception& e) {
CPPA_PRINTERR("terminate called after throwing "
<< to_verbose_string(e));
}
catch (...) {
CPPA_PRINTERR("terminate called after throwing an unknown exception");
}
abort();
}
template<typename T>
void await_down(actor_ptr ptr, T continuation) {
become (
on(atom("DOWN"), arg_match) >> [=](uint32_t) -> bool {
if (self->last_sender() == ptr) {
continuation();
return true;
}
return false; // not the 'DOWN' message we are waiting for
}
);
}
class client : public event_based_actor {
public:
client(actor_ptr server) : m_server(std::move(server)) { }
void init() {
CPPA_SET_DEBUG_NAME("client");
spawn_ping();
}
private:
void spawn_ping() {
CPPA_PRINT("send {'SpawnPing'}");
send(m_server, atom("SpawnPing"));
become (
on(atom("PingPtr"), arg_match) >> [=](const actor_ptr& ping) {
auto pptr = spawn<monitored+detached+blocking_api>(pong, ping);
await_down(pptr, [=] {
send_sync_msg();
});
}
);
}
void send_sync_msg() {
CPPA_PRINT("sync send {'SyncMsg'}");
sync_send(m_server, atom("SyncMsg")).then(
on(atom("SyncReply")) >> [=] {
send_foobars();
}
);
}
void send_foobars(int i = 0) {
if (i == 0) { CPPA_PRINT("send foobars"); }
if (i == 100) test_group_comm();
else {
CPPA_LOG_DEBUG("send message nr. " << (i+1));
sync_send(m_server, atom("foo"), atom("bar"), i).then (
on(atom("foo"), atom("bar"), i) >> [=] {
send_foobars(i+1);
}
);
}
}
void test_group_comm() {
CPPA_PRINT("test group communication via network");
sync_send(m_server, atom("GClient")).then(
on(atom("GClient"), arg_match) >> [=](actor_ptr gclient) {
auto s5a = spawn<monitored>(spawn5_server, gclient, false);
await_down(s5a, [=]{
test_group_comm_inverted();
});
}
);
}
void test_group_comm_inverted() {
CPPA_PRINT("test group communication via network (inverted setup)");
become (
on(atom("GClient")) >> [=] {
auto cptr = self->last_sender();
auto s5c = spawn<monitored>(spawn5_client);
reply(atom("GClient"), s5c);
await_down(s5c, [=] {
CPPA_CHECKPOINT();
self->quit();
});
}
);
}
actor_ptr m_server;
};
class server : public event_based_actor {
public:
void init() {
CPPA_SET_DEBUG_NAME("server");
await_spawn_ping();
}
private:
void await_spawn_ping() {
CPPA_PRINT("await {'SpawnPing'}");
become (
on(atom("SpawnPing")) >> [=] {
CPPA_PRINT("received {'SpawnPing'}");
auto client = self->last_sender();
CPPA_LOGF_ERROR_IF(!client, "last_sender() == nullptr");
CPPA_LOGF_INFO("spawn event-based ping actor");
auto pptr = spawn<monitored>(event_based_ping, 10);
reply(atom("PingPtr"), pptr);
CPPA_LOGF_INFO("wait until spawned ping actor is done");
await_down(pptr, [=] {
CPPA_CHECK_EQUAL(pongs(), 10);
await_sync_msg();
});
}
);
}
void await_sync_msg() {
CPPA_PRINT("await {'SyncMsg'}");
become (
on(atom("SyncMsg")) >> [=] {
CPPA_PRINT("received {'SyncMsg'}");
reply(atom("SyncReply"));
await_foobars();
}
);
}
void await_foobars() {
CPPA_PRINT("await foobars");
auto foobars = make_shared<int>(0);
become (
on(atom("foo"), atom("bar"), arg_match) >> [=](int i) {
++*foobars;
reply_tuple(self->last_dequeued());
if (i == 99) {
CPPA_CHECK_EQUAL(*foobars, 100);
test_group_comm();
}
}
);
}
void test_group_comm() {
CPPA_PRINT("test group communication via network");
become (
on(atom("GClient")) >> [=] {
auto cptr = self->last_sender();
auto s5c = spawn<monitored>(spawn5_client);
reply(atom("GClient"), s5c);
await_down(s5c, [=] {
test_group_comm_inverted(cptr);
});
}
);
}
void test_group_comm_inverted(actor_ptr cptr) {
CPPA_PRINT("test group communication via network (inverted setup)");
sync_send(cptr, atom("GClient")).then (
on(atom("GClient"), arg_match) >> [=](actor_ptr gclient) {
await_down(spawn<monitored>(spawn5_server, gclient, true), [=] {
CPPA_CHECKPOINT();
self->quit();
});
}
);
}
};
void run_client_part(const vector<string_pair>& args) {
CPPA_LOGF_INFO("run in client mode");
CPPA_TEST(test_remote_actor_client_part);
auto i = find_if(args.begin(), args.end(),
[](const string_pair& p) { return p.first == "port"; });
if (i == args.end()) {
CPPA_LOGF_ERROR("no port specified");
throw std::logic_error("no port specified");
}
auto port = static_cast<uint16_t>(stoi(i->second));
auto serv = remote_actor("localhost", port);
// remote_actor is supposed to return the same server when connecting to
// the same host again
{
auto server2 = remote_actor("localhost", port);
CPPA_CHECK(serv == server2);
}
auto c = spawn<client,monitored>(serv);
receive (
on(atom("DOWN"), arg_match) >> [=](uint32_t rsn) {
CPPA_CHECK_EQUAL(self->last_sender(), c);
CPPA_CHECK_EQUAL(rsn, exit_reason::normal);
}
);
}
int main(int argc, char** argv) {
set_terminate(verbose_terminate);
announce<actor_vector>();
CPPA_SET_DEBUG_NAME("main");
cout.unsetf(ios_base::unitbuf);
string app_path = argv[0];
bool run_remote_actor = true;
if (argc > 1) {
if (strcmp(argv[1], "run_remote_actor=false") == 0) {
CPPA_LOGF_INFO("don't run remote actor");
run_remote_actor = false;
}
else {
run_client_part(get_kv_pairs(argc, argv));
await_all_others_done();
shutdown();
return CPPA_TEST_RESULT();
}
}
CPPA_TEST(test_remote_actor);
auto serv = spawn<server,monitored>();
uint16_t port = 4242;
bool success = false;
do {
try {
publish(serv, port, "127.0.0.1");
success = true;
CPPA_LOGF_DEBUG("running on port " << port);
}
catch (bind_failure&) {
// try next port
++port;
}
}
while (!success);
thread child;
ostringstream oss;
if (run_remote_actor) {
oss << app_path << " run=remote_actor port=" << port << " &>/dev/null";
// execute client_part() in a separate process,
// connected via localhost socket
child = thread([&oss]() {
CPPA_LOGC_TRACE("NONE", "main$thread_launcher", "");
string cmdstr = oss.str();
if (system(cmdstr.c_str()) != 0) {
CPPA_PRINTERR("FATAL: command \"" << cmdstr << "\" failed!");
abort();
}
});
}
else { CPPA_PRINT("actor published at port " << port); }
CPPA_CHECKPOINT();
receive (
on(atom("DOWN"), arg_match) >> [=](uint32_t rsn) {
CPPA_CHECK_EQUAL(self->last_sender(), serv);
CPPA_CHECK_EQUAL(rsn, exit_reason::normal);
}
);
// wait until separate process (in sep. thread) finished execution
await_all_others_done();
CPPA_CHECKPOINT();
if (run_remote_actor) child.join();
CPPA_CHECKPOINT();
shutdown();
return CPPA_TEST_RESULT();
}
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