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Copy pathtest_spawn.cpp
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768 lines (692 loc) · 21.2 KB
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#include <stack>
#include <chrono>
#include <iostream>
#include <functional>
#include "test.hpp"
#include "ping_pong.hpp"
#include "cppa/on.hpp"
#include "cppa/cppa.hpp"
#include "cppa/actor.hpp"
#include "cppa/factory.hpp"
#include "cppa/scheduler.hpp"
#include "cppa/sb_actor.hpp"
#include "cppa/to_string.hpp"
#include "cppa/exit_reason.hpp"
#include "cppa/event_based_actor.hpp"
#include "cppa/util/callable_trait.hpp"
using namespace std;
using namespace cppa;
class event_testee : public sb_actor<event_testee> {
friend class sb_actor<event_testee>;
behavior wait4string;
behavior wait4float;
behavior wait4int;
behavior& init_state = wait4int;
public:
event_testee() {
wait4string = (
on<string>() >> [=]() {
become(wait4int);
},
on<atom("get_state")>() >> [=]() {
reply("wait4string");
}
);
wait4float = (
on<float>() >> [=]() {
become(wait4string);
},
on<atom("get_state")>() >> [=]() {
reply("wait4float");
}
);
wait4int = (
on<int>() >> [=]() {
become(wait4float);
},
on<atom("get_state")>() >> [=]() {
reply("wait4int");
}
);
}
};
// quits after 5 timeouts
actor_ptr spawn_event_testee2() {
struct impl : sb_actor<impl> {
behavior wait4timeout(int remaining) {
return (
after(chrono::milliseconds(50)) >> [=]() {
if (remaining == 1) quit();
else become(wait4timeout(remaining - 1));
}
);
}
behavior init_state;
impl() : init_state(wait4timeout(5)) { }
};
return spawn<impl>();
}
struct chopstick : public sb_actor<chopstick> {
behavior taken_by(actor_ptr whom) {
return (
on<atom("take")>() >> [=]() {
reply(atom("busy"));
},
on(atom("put"), whom) >> [=]() {
become(available);
},
on(atom("break")) >> [=]() {
quit();
}
);
}
behavior available;
behavior& init_state = available;
chopstick() {
available = (
on(atom("take"), arg_match) >> [=](actor_ptr whom) {
become(taken_by(whom));
reply(atom("taken"));
},
on(atom("break")) >> [=]() {
quit();
}
);
}
};
class testee_actor {
void wait4string() {
bool string_received = false;
do_receive (
on<string>() >> [&] {
string_received = true;
},
on<atom("get_state")>() >> [&] {
reply("wait4string");
}
)
.until(gref(string_received));
}
void wait4float() {
bool float_received = false;
do_receive (
on<float>() >> [&] {
float_received = true;
},
on<atom("get_state")>() >> [&] {
reply("wait4float");
}
)
.until(gref(float_received));
wait4string();
}
public:
void operator()() {
receive_loop (
on<int>() >> [&] {
wait4float();
},
on<atom("get_state")>() >> [&] {
reply("wait4int");
}
);
}
};
// receives one timeout and quits
void testee1() {
become(after(chrono::milliseconds(10)) >> [] { unbecome(); });
}
void testee2(actor_ptr other) {
self->link_to(other);
send(other, uint32_t(1));
become (
on<uint32_t>() >> [](uint32_t sleep_time) {
// "sleep" for sleep_time milliseconds
become (
keep_behavior,
after(chrono::milliseconds(sleep_time)) >> [] { unbecome(); }
);
}
);
}
template<class Testee>
string behavior_test(actor_ptr et) {
string result;
string testee_name = detail::to_uniform_name(typeid(Testee));
send(et, 1);
send(et, 2);
send(et, 3);
send(et, .1f);
send(et, "hello " + testee_name);
send(et, .2f);
send(et, .3f);
send(et, "hello again " + testee_name);
send(et, "goodbye " + testee_name);
send(et, atom("get_state"));
receive (
on_arg_match >> [&](const string& str) {
result = str;
},
after(chrono::minutes(1)) >> [&]() {
//after(chrono::seconds(2)) >> [&]() {
throw runtime_error(testee_name + " does not reply");
}
);
send_exit(et, exit_reason::user_defined);
await_all_others_done();
return result;
}
class fixed_stack : public sb_actor<fixed_stack> {
friend class sb_actor<fixed_stack>;
size_t max_size = 10;
vector<int> data;
behavior full;
behavior filled;
behavior empty;
behavior& init_state = empty;
public:
fixed_stack(size_t max) : max_size(max) {
full = (
on(atom("push"), arg_match) >> [=](int) { },
on(atom("pop")) >> [=]() {
reply(atom("ok"), data.back());
data.pop_back();
become(filled);
}
);
filled = (
on(atom("push"), arg_match) >> [=](int what) {
data.push_back(what);
if (data.size() == max_size)
become(full);
},
on(atom("pop")) >> [=]() {
reply(atom("ok"), data.back());
data.pop_back();
if (data.empty())
become(empty);
}
);
empty = (
on(atom("push"), arg_match) >> [=](int what) {
data.push_back(what);
become(filled);
},
on(atom("pop")) >> [=]() {
reply(atom("failure"));
}
);
}
};
void echo_actor() {
become (
others() >> [] {
reply_tuple(self->last_dequeued());
self->quit(exit_reason::normal);
}
);
}
struct simple_mirror : sb_actor<simple_mirror> {
behavior init_state = (
others() >> []() {
reply_tuple(self->last_dequeued());
}
);
};
void high_priority_testee() {
send(self, atom("b"));
send({self, message_priority::high}, atom("a"));
// 'a' must be received before 'b'
become (
on(atom("b")) >> [] {
CPPA_FAILURE("received 'b' before 'a'");
self->quit();
},
on(atom("a")) >> [] {
CPPA_CHECKPOINT();
become (
on(atom("b")) >> [] {
CPPA_CHECKPOINT();
self->quit();
},
others() >> CPPA_UNEXPECTED_MSG_CB()
);
},
others() >> CPPA_UNEXPECTED_MSG_CB()
);
}
struct high_priority_testee_class : event_based_actor {
void init() {
high_priority_testee();
}
};
int main() {
CPPA_TEST(test_spawn);
CPPA_PRINT("test send()");
send(self, 1, 2, 3, true);
receive(on(1, 2, 3, true) >> []() { });
self << any_tuple{};
receive(on() >> []() { });
CPPA_CHECKPOINT();
self << any_tuple{};
receive(on() >> []() { });
CPPA_PRINT("test receive with zero timeout");
receive (
others() >> CPPA_UNEXPECTED_MSG_CB(),
after(chrono::seconds(0)) >> []() { /* mailbox empty */ }
);
CPPA_CHECKPOINT();
CPPA_PRINT("test mirror"); {
auto mirror = spawn<simple_mirror,monitored>();
send(mirror, "hello mirror");
receive (
on("hello mirror") >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
send_exit(mirror, exit_reason::user_defined);
receive (
on(atom("DOWN"), exit_reason::user_defined) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
await_all_others_done();
CPPA_CHECKPOINT();
}
CPPA_PRINT("test detached mirror"); {
auto mirror = spawn<simple_mirror,monitored+detached>();
send(mirror, "hello mirror");
receive (
on("hello mirror") >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
send_exit(mirror, exit_reason::user_defined);
receive (
on(atom("DOWN"), exit_reason::user_defined) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
await_all_others_done();
CPPA_CHECKPOINT();
}
CPPA_PRINT("test priority aware mirror"); {
auto mirror = spawn<simple_mirror,monitored+priority_aware>();
CPPA_CHECKPOINT();
send(mirror, "hello mirror");
receive (
on("hello mirror") >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
send_exit(mirror, exit_reason::user_defined);
receive (
on(atom("DOWN"), exit_reason::user_defined) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
await_all_others_done();
CPPA_CHECKPOINT();
}
CPPA_PRINT("test echo actor");
auto mecho = spawn(echo_actor);
send(mecho, "hello echo");
receive (
on("hello echo") >> []() { },
others() >> CPPA_UNEXPECTED_MSG_CB()
);
await_all_others_done();
CPPA_CHECKPOINT();
CPPA_PRINT("test delayed_send()");
delayed_send(self, chrono::seconds(1), 1, 2, 3);
receive(on(1, 2, 3) >> []() { });
CPPA_CHECKPOINT();
CPPA_PRINT("test timeout");
receive(after(chrono::seconds(1)) >> []() { });
CPPA_CHECKPOINT();
spawn(testee1);
await_all_others_done();
CPPA_CHECKPOINT();
spawn_event_testee2();
await_all_others_done();
CPPA_CHECKPOINT();
auto cstk = spawn<chopstick>();
send(cstk, atom("take"), self);
receive (
on(atom("taken")) >> [&]() {
send(cstk, atom("put"), self);
send(cstk, atom("break"));
}
);
await_all_others_done();
CPPA_CHECKPOINT();
auto factory = factory::event_based([&](int* i, float*, string*) {
become (
on(atom("get_int")) >> [i]() {
reply(*i);
},
on(atom("set_int"), arg_match) >> [i](int new_value) {
*i = new_value;
},
on(atom("done")) >> []() {
self->quit();
}
);
});
auto foobaz_actor = factory.spawn(23);
send(foobaz_actor, atom("get_int"));
send(foobaz_actor, atom("set_int"), 42);
send(foobaz_actor, atom("get_int"));
send(foobaz_actor, atom("done"));
receive (
on_arg_match >> [&](int value) {
CPPA_CHECK_EQUAL(value, 23);
}
);
receive (
on_arg_match >> [&](int value) {
CPPA_CHECK_EQUAL(value, 42);
}
);
await_all_others_done();
CPPA_CHECKPOINT();
auto st = spawn<fixed_stack>(10);
// push 20 values
for (int i = 0; i < 20; ++i) send(st, atom("push"), i);
// pop 20 times
for (int i = 0; i < 20; ++i) send(st, atom("pop"));
// expect 10 failure messages
{
int i = 0;
receive_for(i, 10) (
on(atom("failure")) >> [] { }
);
CPPA_CHECKPOINT();
}
// expect 10 {'ok', value} messages
{
vector<int> values;
int i = 0;
receive_for(i, 10) (
on(atom("ok"), arg_match) >> [&](int value) {
values.push_back(value);
}
);
vector<int> expected{9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
CPPA_CHECK(values == expected);
}
// terminate st
send_exit(st, exit_reason::user_defined);
await_all_others_done();
CPPA_CHECKPOINT();
auto sync_testee1 = spawn<blocking_api>([] {
receive (
on(atom("get")) >> []() {
reply(42, 2);
}
);
});
send(self, 0, 0);
auto handle = sync_send(sync_testee1, atom("get"));
// wait for some time (until sync response arrived in mailbox)
receive (after(chrono::milliseconds(50)) >> []() { });
// enqueue async messages (must be skipped by receive_response)
send(self, 42, 1);
// must skip sync message
receive (
on(42, arg_match) >> [&](int i) {
CPPA_CHECK_EQUAL(i, 1);
}
);
// must skip remaining async message
receive_response (handle) (
on_arg_match >> [&](int a, int b) {
CPPA_CHECK_EQUAL(a, 42);
CPPA_CHECK_EQUAL(b, 2);
},
others() >> CPPA_UNEXPECTED_MSG_CB(),
after(chrono::seconds(10)) >> CPPA_UNEXPECTED_TOUT_CB()
);
// dequeue remaining async. message
receive (on(0, 0) >> CPPA_CHECKPOINT_CB());
// make sure there's no other message in our mailbox
receive (
others() >> CPPA_UNEXPECTED_MSG_CB(),
after(chrono::seconds(0)) >> []() { }
);
await_all_others_done();
CPPA_CHECKPOINT();
CPPA_PRINT("test sync send with factory spawned actor");
auto sync_testee_factory = factory::event_based(
[&]() {
become (
on("hi") >> [&]() {
auto handle = sync_send(self->last_sender(), "whassup?");
handle_response(handle) (
on_arg_match >> [&](const string& str) {
CPPA_CHECK(self->last_sender() != nullptr);
CPPA_CHECK_EQUAL(str, "nothing");
reply("goodbye!");
self->quit();
},
after(chrono::minutes(1)) >> []() {
cerr << "PANIC!!!!" << endl;
abort();
}
);
},
others() >> CPPA_UNEXPECTED_MSG_CB()
);
}
);
CPPA_CHECKPOINT();
auto sync_testee = sync_testee_factory.spawn();
self->monitor(sync_testee);
send(sync_testee, "hi");
receive (
on("whassup?") >> [&] {
CPPA_CHECK(true);
// this is NOT a reply, it's just an asynchronous message
send(self->last_sender(), "a lot!");
reply("nothing");
}
);
receive (
on("goodbye!") >> CPPA_CHECKPOINT_CB(),
after(std::chrono::seconds(5)) >> CPPA_UNEXPECTED_TOUT_CB()
);
receive (
on(atom("DOWN"), exit_reason::normal) >> [&] {
CPPA_CHECK_EQUAL(self->last_sender(), sync_testee);
}
);
await_all_others_done();
CPPA_CHECKPOINT();
sync_send(sync_testee, "!?").await(
on(atom("EXITED"), any_vals) >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB(),
after(chrono::milliseconds(5)) >> CPPA_UNEXPECTED_TOUT_CB()
);
auto inflater = factory::event_based(
[](string*, actor_ptr* receiver) {
become(
on_arg_match >> [=](int n, const string& s) {
send(*receiver, n * 2, s);
},
on(atom("done")) >> []() {
self->quit();
}
);
}
);
auto joe = inflater.spawn("Joe", self);
auto bob = inflater.spawn("Bob", joe);
send(bob, 1, "hello actor");
receive (
on(4, "hello actor") >> CPPA_CHECKPOINT_CB(),
others() >> CPPA_UNEXPECTED_MSG_CB()
);
// kill joe and bob
auto poison_pill = make_any_tuple(atom("done"));
joe << poison_pill;
bob << poison_pill;
await_all_others_done();
function<actor_ptr (const string&, const actor_ptr&)> spawn_next;
auto kr34t0r = factory::event_based(
// it's safe to pass spawn_next as reference here, because
// - it is guaranteeed to outlive kr34t0r by general scoping rules
// - the lambda is always executed in the current actor's thread
// but using spawn_next in a message handler could
// still cause undefined behavior!
[&spawn_next](string* name, actor_ptr* pal) {
if (*name == "Joe" && !*pal) {
*pal = spawn_next("Bob", self);
}
become (
others() >> [pal]() {
// forward message and die
*pal << self->last_dequeued();
self->quit();
}
);
}
);
spawn_next = [&kr34t0r](const string& name, const actor_ptr& pal) {
return kr34t0r.spawn(name, pal);
};
auto joe_the_second = kr34t0r.spawn("Joe");
send(joe_the_second, atom("done"));
await_all_others_done();
int zombie_init_called = 0;
int zombie_on_exit_called = 0;
factory::event_based([&]() { ++zombie_init_called; },
[&]() { ++zombie_on_exit_called; }).spawn();
CPPA_CHECK_EQUAL(zombie_init_called, 1);
CPPA_CHECK_EQUAL(zombie_on_exit_called, 1);
factory::event_based([&](int* i) {
CPPA_CHECK_EQUAL(*i, 42);
++zombie_init_called;
},
[&](int* i) {
CPPA_CHECK_EQUAL(*i, 42);
++zombie_on_exit_called;
})
.spawn(42);
CPPA_CHECK_EQUAL(zombie_init_called, 2);
CPPA_CHECK_EQUAL(zombie_on_exit_called, 2);
factory::event_based([&](int* i) {
CPPA_CHECK_EQUAL(*i, 23);
++zombie_init_called;
},
[&]() {
++zombie_on_exit_called;
})
.spawn(23);
CPPA_CHECK_EQUAL(zombie_init_called, 3);
CPPA_CHECK_EQUAL(zombie_on_exit_called, 3);
auto f = factory::event_based([](string* name) {
become (
on(atom("get_name")) >> [name]() {
reply(atom("name"), *name);
}
);
});
auto a1 = f.spawn("alice");
auto a2 = f.spawn("bob");
send(a1, atom("get_name"));
receive (
on(atom("name"), arg_match) >> [&](const string& name) {
CPPA_CHECK_EQUAL(name, "alice");
}
);
send(a2, atom("get_name"));
receive (
on(atom("name"), arg_match) >> [&](const string& name) {
CPPA_CHECK_EQUAL(name, "bob");
}
);
send_exit(a1, exit_reason::user_defined);
send_exit(a2, exit_reason::user_defined);
await_all_others_done();
factory::event_based([](int* i) {
become(
after(chrono::milliseconds(50)) >> [=]() {
if (++(*i) >= 5) self->quit();
}
);
}).spawn();
await_all_others_done();
auto res1 = behavior_test<testee_actor>(spawn<blocking_api>(testee_actor{}));
CPPA_CHECK_EQUAL("wait4int", res1);
CPPA_CHECK_EQUAL(behavior_test<event_testee>(spawn<event_testee>()), "wait4int");
// create some actors linked to one single actor
// and kill them all through killing the link
auto legion = spawn([] {
CPPA_LOGF_INFO("spawn 1,000 actors");
for (int i = 0; i < 1000; ++i) {
spawn<event_testee,linked>();
}
become(others() >> CPPA_UNEXPECTED_MSG_CB());
});
send_exit(legion, exit_reason::user_defined);
await_all_others_done();
CPPA_CHECKPOINT();
self->trap_exit(true);
auto ping_actor = spawn<monitored+blocking_api>(ping, 10);
auto pong_actor = spawn<monitored+blocking_api>(pong, ping_actor);
self->link_to(pong_actor);
int i = 0;
int flags = 0;
delayed_send(self, chrono::seconds(1), atom("FooBar"));
// wait for DOWN and EXIT messages of pong
receive_for(i, 4) (
on(atom("EXIT"), arg_match) >> [&](uint32_t reason) {
CPPA_CHECK_EQUAL(exit_reason::user_defined, reason);
CPPA_CHECK(self->last_sender() == pong_actor);
flags |= 0x01;
},
on(atom("DOWN"), arg_match) >> [&](uint32_t reason) {
auto who = self->last_sender();
if (who == pong_actor) {
flags |= 0x02;
CPPA_CHECK_EQUAL(reason, exit_reason::user_defined);
}
else if (who == ping_actor) {
flags |= 0x04;
CPPA_CHECK_EQUAL(reason, exit_reason::normal);
}
},
on_arg_match >> [&](const atom_value& val) {
CPPA_CHECK(val == atom("FooBar"));
flags |= 0x08;
},
others() >> [&]() {
CPPA_FAILURE("unexpected message: " << to_string(self->last_dequeued()));
},
after(chrono::seconds(5)) >> [&]() {
CPPA_FAILURE("timeout in file " << __FILE__ << " in line " << __LINE__);
}
);
// wait for termination of all spawned actors
await_all_others_done();
CPPA_CHECK_EQUAL(flags, 0x0F);
// verify pong messages
CPPA_CHECK_EQUAL(pongs(), 10);
CPPA_CHECKPOINT();
spawn<priority_aware>(high_priority_testee);
await_all_others_done();
CPPA_CHECKPOINT();
spawn<high_priority_testee_class,priority_aware>();
await_all_others_done();
// don't try this at home, kids
send(self, atom("check"));
try {
become (
on(atom("check")) >> [] {
CPPA_CHECKPOINT();
self->quit();
}
);
self->exec_behavior_stack();
CPPA_FAILURE("line " << __LINE__ << " should be unreachable");
}
catch (actor_exited&) {
CPPA_CHECKPOINT();
}
shutdown();
return CPPA_TEST_RESULT();
}
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