void rb_io_check_writable(rb_io_t* iot) {
VALUE io_handle = iot->handle;
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
IO* io = c_as<IO>(env->get_object(io_handle));
int io_mode = io->mode()->to_native() & O_ACCMODE;
if(!(O_WRONLY == io_mode || O_RDWR == io_mode)) {
rb_raise(rb_eIOError, "not opened for writing");
}
}
void rb_io_check_readable(rb_io_t* iot) {
VALUE io_handle = iot->handle;
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
IO* io = c_as<IO>(env->get_object(io_handle));
if ((io->mode()->to_native() & O_ACCMODE) != O_RDONLY) {
rb_raise(rb_eIOError, "not opened for reading");
}
}
void test_connect_pipe() {
IO* lhs = IO::allocate(state, G(io));
IO* rhs = IO::allocate(state, G(io));
TS_ASSERT(IO::connect_pipe(state, lhs, rhs)->true_p());
TS_ASSERT_EQUALS(Fixnum::from(0), lhs->lineno());
TS_ASSERT_EQUALS(Fixnum::from(0), rhs->lineno());
TS_ASSERT(kind_of<IOBuffer>(lhs->ibuffer()));
TS_ASSERT(kind_of<IOBuffer>(rhs->ibuffer()));
int acc_mode = fcntl(lhs->to_fd(), F_GETFL);
TS_ASSERT(acc_mode >= 0);
TS_ASSERT_EQUALS(Fixnum::from(acc_mode), lhs->mode());
acc_mode = fcntl(rhs->to_fd(), F_GETFL);
TS_ASSERT(acc_mode >= 0);
TS_ASSERT_EQUALS(Fixnum::from(acc_mode), rhs->mode());
lhs->close(state);
rhs->close(state);
}
void test_connect_pipe() {
IO* lhs = IO::allocate(state, G(io));
IO* rhs = IO::allocate(state, G(io));
TS_ASSERT(IO::connect_pipe(state, lhs, rhs)->true_p());
TS_ASSERT_EQUALS(Fixnum::from(0), lhs->lineno());
TS_ASSERT_EQUALS(Fixnum::from(0), rhs->lineno());
TS_ASSERT(kind_of<IOBuffer>(lhs->ibuffer()));
TS_ASSERT(kind_of<IOBuffer>(rhs->ibuffer()));
TS_ASSERT_EQUALS(Fixnum::from(O_RDONLY), lhs->mode());
TS_ASSERT_EQUALS(Fixnum::from(O_WRONLY), rhs->mode());
rhs->write(state, String::create(state, "hello"), 0);
Object* obj = lhs->blocking_read(state, Fixnum::from(5));
TS_ASSERT(kind_of<String>(obj));
String* str = try_as<String>(obj);
TS_ASSERT_EQUALS(std::string("hello"), str->c_str(state));
lhs->close(state);
rhs->close(state);
}
