void dsk_main_watch_fd (DskFileDescriptor fd,
unsigned events,
DskFDFunc callback,
void *callback_data)
{
dsk_assert (fd >= 0);
dsk_dispatch_watch_fd (dsk_dispatch_default (),
fd, events, callback, callback_data);
}
static void
stream_do_watch_fd (DskClientStream *stream)
{
if (stream->is_connected)
{
int events = 0;
if (stream->base_instance.source != NULL
&& dsk_hook_is_trapped (&stream->base_instance.source->readable_hook))
events |= DSK_EVENT_READABLE;
if (stream->base_instance.sink != NULL
&& dsk_hook_is_trapped (&stream->base_instance.sink->writable_hook))
events |= DSK_EVENT_WRITABLE;
dsk_dispatch_watch_fd (dsk_dispatch_default (), stream->fd, events,
handle_fd_events, stream);
}
}
static void
begin_connecting_sockaddr (DskClientStream *stream,
unsigned addr_len,
struct sockaddr *addr)
{
int fd;
dsk_assert (stream->fd == -1);
dsk_assert (!stream->is_connecting);
dsk_assert (!stream->is_connected);
retry_sys_socket:
fd = socket (addr->sa_family, SOCK_STREAM, 0);
if (fd < 0)
{
int e = errno;
if (e == EINTR)
goto retry_sys_socket;
if (dsk_fd_creation_failed (e))
goto retry_sys_socket;
/* set error */
dsk_octet_stream_set_last_error (&stream->base_instance,
"error invoking socket(2) system-call: %s",
strerror (e));
goto handle_error;
}
/* set non-blocking */
dsk_fd_set_nonblocking (fd);
dsk_fd_set_close_on_exec (fd);
/* call connect() */
retry_sys_connect:
if (connect (fd, addr, addr_len) < 0)
{
int e = errno;
if (e == EINTR)
goto retry_sys_connect;
if (e == EAGAIN || e == EINPROGRESS)
{
stream->is_connecting = DSK_TRUE;
stream->fd = fd;
dsk_dispatch_watch_fd (dsk_dispatch_default (), fd,
DSK_EVENT_WRITABLE|DSK_EVENT_READABLE,
handle_fd_connecting, stream);
return;
}
/* set error */
close (fd);
dsk_octet_stream_set_last_error (&stream->base_instance,
"error connecting to %s: %s",
stream->name, strerror (e));
goto handle_error;
}
stream->is_connected = DSK_TRUE;
stream->fd = fd;
handle_fd_connected (stream);
return;
handle_error:
maybe_set_autoreconnect_timer (stream);
return;
}
