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test_channel.cc
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test_channel.cc
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#define BOOST_TEST_MODULE channel test
#include <boost/test/unit_test.hpp>
#include "ten/descriptors.hh"
#include "ten/semaphore.hh"
#include "ten/channel.hh"
using namespace ten;
const size_t default_stacksize=245*1024;
static void channel_recv(channel<intptr_t> c, channel<int> done_chan) {
intptr_t d = c.recv();
BOOST_CHECK_EQUAL(d, 8675309);
char *str = reinterpret_cast<char *>(c.recv());
BOOST_CHECK_EQUAL(str, "hi");
done_chan.send(1);
}
static void channel_send(channel<intptr_t> c, channel<int> done_chan) {
static char str[] = "hi";
c.send(8675309);
c.send(reinterpret_cast<intptr_t>(str));
done_chan.send(1);
}
void channel_test_task() {
channel<int> done_chan;
channel<intptr_t> c{10};
taskspawn(std::bind(channel_recv, c, done_chan));
taskspawn(std::bind(channel_send, c, done_chan));
for (int i=0; i<2; ++i) {
done_chan.recv();
}
BOOST_CHECK(c.empty());
}
BOOST_AUTO_TEST_CASE(channel_test) {
procmain p;
taskspawn(channel_test_task);
p.main();
}
void unbuffered_test_task() {
channel<int> done_chan;
channel<intptr_t> c;
taskspawn(std::bind(channel_recv, c, done_chan));
taskspawn(std::bind(channel_send, c, done_chan));
for (int i=0; i<2; ++i) {
done_chan.recv();
}
BOOST_CHECK(c.empty());
}
BOOST_AUTO_TEST_CASE(channel_unbuffered_test) {
procmain p;
taskspawn(unbuffered_test_task);
p.main();
}
static void channel_recv_mt(channel<intptr_t> c, channel<int> done_chan) {
intptr_t d = c.recv();
assert(d == 8675309);
char *str = reinterpret_cast<char *>(c.recv());
assert(strcmp(str, "hi") == 0);
done_chan.send(1);
}
void mt_test_task() {
channel<intptr_t> c;
channel<int> done_chan;
procspawn(std::bind(channel_recv_mt, c, done_chan));
procspawn(std::bind(channel_send, c, done_chan));
for (int i=0; i<2; ++i) {
done_chan.recv();
}
BOOST_CHECK(c.empty());
}
BOOST_AUTO_TEST_CASE(channel_unbuffered_mt_test) {
procmain p;
taskspawn(mt_test_task);
p.main();
}
static void channel_multi_send(channel<intptr_t> c, channel<int> done_chan) {
c.send(1234);
c.send(1234);
done_chan.send(1);
}
static void channel_multi_recv(channel<intptr_t> c, channel<int> done_chan) {
for (int i=0; i<5; ++i) {
intptr_t d = c.recv();
BOOST_CHECK_EQUAL(d, 1234);
}
BOOST_CHECK(c.empty());
done_chan.send(1);
}
void multiple_senders_task() {
channel<int> done_chan;
channel<intptr_t> c{4};
c.send(1234);
taskspawn(std::bind(channel_multi_recv, c, done_chan));
taskspawn(std::bind(channel_multi_send, c, done_chan));
taskspawn(std::bind(channel_multi_send, c, done_chan));
for (int i=0; i<3; ++i) {
done_chan.recv();
}
BOOST_CHECK(c.empty());
}
BOOST_AUTO_TEST_CASE(channel_multiple_senders_test) {
procmain p;
taskspawn(multiple_senders_task);
p.main();
}
static void delayed_channel_send(channel<int> c) {
tasksleep(100);
c.send(5309);
}
static void delayed_channel(address addr) {
channel<int> c;
// spawn the send in another thread before blocking on recv
procspawn(std::bind(delayed_channel_send, c));
int a = c.recv();
(void)a;
socket_fd s{AF_INET, SOCK_STREAM};
s.setnonblock();
if (s.connect(addr) == 0) {
} else if (errno == EINPROGRESS) {
// poll for writeable
bool success = fdwait(s.fd, 'w');
assert(success);
} else {
throw errno_error();
}
}
static void wait_on_io() {
socket_fd s{AF_INET, SOCK_STREAM};
s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1);
address addr{"127.0.0.1", 0};
s.bind(addr);
s.getsockname(addr);
s.listen();
taskspawn(std::bind(delayed_channel, addr));
fdwait(s.fd, 'r');
// yield here, otherwise fdwait in delayed_channel
// could get the close event on our listening socket
taskyield();
}
BOOST_AUTO_TEST_CASE(blocked_io_and_channel) {
procmain p;
taskspawn(wait_on_io);
p.main();
}
static void channel_closer_task(channel<int> c, int &closed) {
taskyield();
c.close();
closed++;
}
static void channel_recv_close(channel<int> c, int &closed) {
try {
c.recv();
} catch (channel_closed_error &e) {
closed++;
}
}
void close_test_task(int &closed) {
channel<int> c;
taskspawn(std::bind(channel_recv_close, c, std::ref(closed)));
taskspawn(std::bind(channel_recv_close, c, std::ref(closed)));
taskspawn(std::bind(channel_closer_task, c, std::ref(closed)));
}
BOOST_AUTO_TEST_CASE(channel_close_test) {
procmain p;
int closed=0;
taskspawn(std::bind(close_test_task, std::ref(closed)));
p.main();
BOOST_CHECK_EQUAL(closed, 3);
}