static VALUE
my_connect(VALUE klass, int io_wait, int domain, void *addr, socklen_t addrlen)
{
int fd = socket(domain, MY_SOCK_STREAM, 0);
if (fd == -1) {
switch (errno) {
case EMFILE:
case ENFILE:
#ifdef ENOBUFS
case ENOBUFS:
#endif /* ENOBUFS */
errno = 0;
rb_gc();
fd = socket(domain, MY_SOCK_STREAM, 0);
}
if (fd == -1)
rb_sys_fail("socket");
}
#ifndef SOCK_NONBLOCK
if (fcntl(fd, F_SETFL, O_RDWR | O_NONBLOCK) == -1)
close_fail(fd, "fcntl(F_SETFL, O_RDWR | O_NONBLOCK)");
#endif /* SOCK_NONBLOCK */
if (connect(fd, addr, addrlen) == -1) {
if (errno == EINPROGRESS) {
VALUE io = sock_for_fd(klass, fd);
if (io_wait) {
errno = EAGAIN;
(void)kgio_call_wait_writable(io);
}
return io;
}
close_fail(fd, "connect");
}
return sock_for_fd(klass, fd);
}
static VALUE
my_connect(VALUE klass, int io_wait, int domain,
const void *addr, socklen_t addrlen)
{
int fd = my_socket(domain);
if (connect(fd, addr, addrlen) < 0) {
if (errno == EINPROGRESS) {
VALUE io = sock_for_fd(klass, fd);
if (io_wait) {
errno = EAGAIN;
(void)kgio_call_wait_writable(io);
}
return io;
}
close_fail(fd, "connect");
}
return sock_for_fd(klass, fd);
}
/* try to use SOCK_NONBLOCK and SOCK_CLOEXEC */
static int my_socket(int domain)
{
int fd;
retry:
fd = socket(domain, MY_SOCK_STREAM, 0);
if (fd < 0) {
switch (errno) {
case EMFILE:
case ENFILE:
#ifdef ENOBUFS
case ENOBUFS:
#endif /* ENOBUFS */
errno = 0;
rb_gc();
fd = socket(domain, MY_SOCK_STREAM, 0);
break;
case EINVAL:
if (MY_SOCK_STREAM != SOCK_STREAM) {
MY_SOCK_STREAM = SOCK_STREAM;
goto retry;
}
}
if (fd < 0)
rb_sys_fail("socket");
}
if (MY_SOCK_STREAM == SOCK_STREAM) {
if (fcntl(fd, F_SETFL, O_RDWR | O_NONBLOCK) < 0)
close_fail(fd, "fcntl(F_SETFL, O_RDWR | O_NONBLOCK)");
rb_fd_fix_cloexec(fd);
}
return fd;
}