// This test checks if we can read packets from a closing local socket.
TEST_F(LocalSocketTest, read_from_closing_socket) {
int socket_fd[2];
ASSERT_EQ(0, adb_socketpair(socket_fd));
int cause_close_fd[2];
ASSERT_EQ(0, adb_socketpair(cause_close_fd));
CloseWithPacketArg arg;
arg.socket_fd = socket_fd[1];
arg.cause_close_fd = cause_close_fd[1];
PrepareThread();
adb_thread_t thread;
ASSERT_TRUE(adb_thread_create(reinterpret_cast<void (*)(void*)>(CloseWithPacketThreadFunc),
&arg, &thread));
// Wait until the fdevent_loop() starts.
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
ASSERT_EQ(0, adb_close(cause_close_fd[0]));
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
EXPECT_EQ(1u + GetAdditionalLocalSocketCount(), fdevent_installed_count());
// Verify if we can read successfully.
std::vector<char> buf(arg.bytes_written);
ASSERT_NE(0u, arg.bytes_written);
ASSERT_EQ(true, ReadFdExactly(socket_fd[0], buf.data(), buf.size()));
ASSERT_EQ(0, adb_close(socket_fd[0]));
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
ASSERT_EQ(GetAdditionalLocalSocketCount(), fdevent_installed_count());
TerminateThread(thread);
}
// This test checks if we can close sockets in CLOSE_WAIT state.
TEST_F(LocalSocketTest, close_socket_in_CLOSE_WAIT_state) {
std::string error;
int listen_fd = network_inaddr_any_server(5038, SOCK_STREAM, &error);
ASSERT_GE(listen_fd, 0);
adb_thread_t client_thread;
ASSERT_TRUE(adb_thread_create(reinterpret_cast<void (*)(void*)>(ClientThreadFunc), nullptr,
&client_thread));
struct sockaddr addr;
socklen_t alen;
alen = sizeof(addr);
int accept_fd = adb_socket_accept(listen_fd, &addr, &alen);
ASSERT_GE(accept_fd, 0);
CloseRdHupSocketArg arg;
arg.socket_fd = accept_fd;
PrepareThread();
adb_thread_t thread;
ASSERT_TRUE(adb_thread_create(reinterpret_cast<void (*)(void*)>(CloseRdHupSocketThreadFunc),
&arg, &thread));
// Wait until the fdevent_loop() starts.
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
EXPECT_EQ(1u + GetAdditionalLocalSocketCount(), fdevent_installed_count());
// Wait until the client closes its socket.
ASSERT_TRUE(adb_thread_join(client_thread));
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
ASSERT_EQ(GetAdditionalLocalSocketCount(), fdevent_installed_count());
TerminateThread(thread);
}
void TearDown() override {
// Clean up any listeners that may have been installed.
remove_all_listeners();
// Make sure we didn't leave any dangling events.
ASSERT_EQ(0u, fdevent_installed_count());
}
// This test checks if we can read packets from a closing local socket.
// The socket's file handler may be non readable if the other side has
// called shutdown(SHUT_WR). But we should always write packets
// successfully to the other side.
TEST_F(LocalSocketTest, half_close_with_packet) {
int socket_fd[2];
ASSERT_EQ(0, adb_socketpair(socket_fd));
int cause_close_fd[2];
ASSERT_EQ(0, adb_socketpair(cause_close_fd));
CloseWithPacketArg arg;
arg.socket_fd = socket_fd[1];
arg.cause_close_fd = cause_close_fd[1];
pthread_t thread;
ASSERT_EQ(0, pthread_create(&thread, nullptr,
reinterpret_cast<void* (*)(void*)>(CloseWithPacketThreadFunc),
&arg));
// Wait until the fdevent_loop() starts.
sleep(1);
ASSERT_EQ(0, adb_close(cause_close_fd[0]));
sleep(1);
ASSERT_EQ(2u, fdevent_installed_count());
ASSERT_EQ(0, shutdown(socket_fd[0], SHUT_WR));
// Verify if we can read successfully.
std::vector<char> buf(arg.bytes_written);
ASSERT_EQ(true, ReadFdExactly(socket_fd[0], buf.data(), buf.size()));
ASSERT_EQ(0, adb_close(socket_fd[0]));
// Wait until the socket is closed.
sleep(1);
ASSERT_EQ(0, pthread_kill(thread, SIGUSR1));
ASSERT_EQ(0, pthread_join(thread, nullptr));
}
TEST_F(LocalSocketTest, smoke) {
// Join two socketpairs with a chain of intermediate socketpairs.
int first[2];
std::vector<std::array<int, 2>> intermediates;
int last[2];
constexpr size_t INTERMEDIATE_COUNT = 50;
constexpr size_t MESSAGE_LOOP_COUNT = 100;
const std::string MESSAGE = "socket_test";
intermediates.resize(INTERMEDIATE_COUNT);
ASSERT_EQ(0, adb_socketpair(first)) << strerror(errno);
ASSERT_EQ(0, adb_socketpair(last)) << strerror(errno);
asocket* prev_tail = create_local_socket(first[1]);
ASSERT_NE(nullptr, prev_tail);
auto connect = [](asocket* tail, asocket* head) {
tail->peer = head;
head->peer = tail;
tail->ready(tail);
};
for (auto& intermediate : intermediates) {
ASSERT_EQ(0, adb_socketpair(intermediate.data())) << strerror(errno);
asocket* head = create_local_socket(intermediate[0]);
ASSERT_NE(nullptr, head);
asocket* tail = create_local_socket(intermediate[1]);
ASSERT_NE(nullptr, tail);
connect(prev_tail, head);
prev_tail = tail;
}
asocket* end = create_local_socket(last[0]);
ASSERT_NE(nullptr, end);
connect(prev_tail, end);
PrepareThread();
adb_thread_t thread;
ASSERT_TRUE(adb_thread_create(FdEventThreadFunc, nullptr, &thread));
for (size_t i = 0; i < MESSAGE_LOOP_COUNT; ++i) {
std::string read_buffer = MESSAGE;
std::string write_buffer(MESSAGE.size(), 'a');
ASSERT_TRUE(WriteFdExactly(first[0], &read_buffer[0], read_buffer.size()));
ASSERT_TRUE(ReadFdExactly(last[1], &write_buffer[0], write_buffer.size()));
ASSERT_EQ(read_buffer, write_buffer);
}
ASSERT_EQ(0, adb_close(first[0]));
ASSERT_EQ(0, adb_close(last[1]));
// Wait until the local sockets are closed.
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
ASSERT_EQ(GetAdditionalLocalSocketCount(), fdevent_installed_count());
TerminateThread(thread);
}
// This test checks if we can close local socket in the following situation:
// The socket is not closed and has some packets. When it fails to write to
// the socket's file handler because the other end is closed, we check if the
// socket is closed.
TEST_F(LocalSocketTest, write_error_when_having_packets) {
int socket_fd[2];
ASSERT_EQ(0, adb_socketpair(socket_fd));
int cause_close_fd[2];
ASSERT_EQ(0, adb_socketpair(cause_close_fd));
CloseWithPacketArg arg;
arg.socket_fd = socket_fd[1];
arg.cause_close_fd = cause_close_fd[1];
PrepareThread();
adb_thread_t thread;
ASSERT_TRUE(adb_thread_create(reinterpret_cast<void (*)(void*)>(CloseWithPacketThreadFunc),
&arg, &thread));
// Wait until the fdevent_loop() starts.
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
EXPECT_EQ(2u + GetAdditionalLocalSocketCount(), fdevent_installed_count());
ASSERT_EQ(0, adb_close(socket_fd[0]));
adb_sleep_ms(SLEEP_FOR_FDEVENT_IN_MS);
ASSERT_EQ(GetAdditionalLocalSocketCount(), fdevent_installed_count());
TerminateThread(thread);
}
// This test checks when a local socket doesn't enable FDE_READ/FDE_WRITE/FDE_ERROR, it
// can still be closed when some error happens on its file handler.
// This test successes on linux but fails on mac because of different implementation of
// poll(). I think the function tested here is useful to make adb server more stable on
// linux.
TEST_F(LocalSocketTest, close_with_no_events_installed) {
int socket_fd[2];
ASSERT_EQ(0, adb_socketpair(socket_fd));
CloseNoEventsArg arg;
arg.socket_fd = socket_fd[1];
pthread_t thread;
ASSERT_EQ(0, pthread_create(&thread, nullptr,
reinterpret_cast<void* (*)(void*)>(CloseNoEventsThreadFunc),
&arg));
// Wait until the fdevent_loop() starts.
sleep(1);
ASSERT_EQ(2u, fdevent_installed_count());
ASSERT_EQ(0, adb_close(socket_fd[0]));
// Wait until the socket is closed.
sleep(1);
ASSERT_EQ(0, pthread_kill(thread, SIGUSR1));
ASSERT_EQ(0, pthread_join(thread, nullptr));
}
// This test checks if we can close local socket in the following situation:
// The socket is closing but having some packets, so it is not closed. Then
// some write error happens in the socket's file handler, e.g., the file
// handler is closed.
TEST_F(LocalSocketTest, close_socket_with_packet) {
int socket_fd[2];
ASSERT_EQ(0, adb_socketpair(socket_fd));
int cause_close_fd[2];
ASSERT_EQ(0, adb_socketpair(cause_close_fd));
CloseWithPacketArg arg;
arg.socket_fd = socket_fd[1];
arg.cause_close_fd = cause_close_fd[1];
PrepareThread();
adb_thread_t thread;
ASSERT_TRUE(adb_thread_create(reinterpret_cast<void (*)(void*)>(CloseWithPacketThreadFunc),
&arg, &thread));
// Wait until the fdevent_loop() starts.
adb_sleep_ms(100);
ASSERT_EQ(0, adb_close(cause_close_fd[0]));
adb_sleep_ms(100);
EXPECT_EQ(2u, fdevent_installed_count());
ASSERT_EQ(0, adb_close(socket_fd[0]));
TerminateThread(thread);
}
// This test checks if we can close local socket in the following situation:
// The socket is not closed and has some packets. When it fails to write to
// the socket's file handler because the other end is closed, we check if the
// socket is closed.
TEST_F(LocalSocketTest, write_error_when_having_packets) {
int socket_fd[2];
ASSERT_EQ(0, adb_socketpair(socket_fd));
int cause_close_fd[2];
ASSERT_EQ(0, adb_socketpair(cause_close_fd));
CloseWithPacketArg arg;
arg.socket_fd = socket_fd[1];
arg.cause_close_fd = cause_close_fd[1];
pthread_t thread;
ASSERT_EQ(0, pthread_create(&thread, nullptr,
reinterpret_cast<void* (*)(void*)>(CloseWithPacketThreadFunc),
&arg));
// Wait until the fdevent_loop() starts.
sleep(1);
ASSERT_EQ(3u, fdevent_installed_count());
ASSERT_EQ(0, adb_close(socket_fd[0]));
// Wait until the socket is closed.
sleep(1);
ASSERT_EQ(0, pthread_kill(thread, SIGUSR1));
ASSERT_EQ(0, pthread_join(thread, nullptr));
}
virtual void SetUp() {
fdevent_reset();
ASSERT_EQ(0u, fdevent_installed_count());
}
static void signal_handler(int) {
ASSERT_EQ(1u, fdevent_installed_count());
pthread_exit(nullptr);
}
