void zmq::tcp_connecter_t::out_event ()
{
if (connect_timer_started) {
cancel_timer (connect_timer_id);
connect_timer_started = false;
}
rm_handle ();
const fd_t fd = connect ();
// Handle the error condition by attempt to reconnect.
if (fd == retired_fd || !tune_socket (fd)) {
close ();
add_reconnect_timer ();
return;
}
// Create the engine object for this connection.
stream_engine_t *engine =
new (std::nothrow) stream_engine_t (fd, options, endpoint);
alloc_assert (engine);
// Attach the engine to the corresponding session object.
send_attach (session, engine);
// Shut the connecter down.
terminate ();
socket->event_connected (endpoint, (int) fd);
}
void zmq::tcp_connecter_t::timer_event (int id_)
{
zmq_assert (id_ == reconnect_timer_id || id_ == connect_timer_id);
if (id_ == connect_timer_id) {
connect_timer_started = false;
rm_handle ();
close ();
add_reconnect_timer ();
} else if (id_ == reconnect_timer_id) {
reconnect_timer_started = false;
start_connecting ();
}
}
static bool close_handle(int handle_id)
{
struct memory_handle *h = find_handle(handle_id);
/* If the handle is not found, it is closed */
if (!h)
return true;
if (h->fd >= 0) {
close(h->fd);
h->fd = -1;
}
/* rm_handle returns true unless the handle somehow persists after exit */
return rm_handle(h);
}
void zmq::tcp_connecter_t::process_term (int linger_)
{
if (connect_timer_started) {
cancel_timer (connect_timer_id);
connect_timer_started = false;
}
if (reconnect_timer_started) {
cancel_timer (reconnect_timer_id);
reconnect_timer_started = false;
}
if (handle) {
rm_handle ();
}
if (s != retired_fd)
close ();
own_t::process_term (linger_);
}
/* Reserve space in the buffer for a file.
filename: name of the file to open
offset: offset at which to start buffering the file, useful when the first
(offset-1) bytes of the file aren't needed.
type: one of the data types supported (audio, image, cuesheet, others
user_data: user data passed possibly passed in subcalls specific to a
data_type (only used for image (albumart) buffering so far )
return value: <0 if the file cannot be opened, or one file already
queued to be opened, otherwise the handle for the file in the buffer
*/
int bufopen(const char *file, size_t offset, enum data_type type,
void *user_data)
{
#ifndef HAVE_ALBUMART
/* currently only used for aa loading */
(void)user_data;
#endif
if (type == TYPE_ID3)
{
/* ID3 case: allocate space, init the handle and return. */
struct memory_handle *h = add_handle(sizeof(struct mp3entry), false, true);
if (!h)
return ERR_BUFFER_FULL;
h->fd = -1;
h->filesize = sizeof(struct mp3entry);
h->filerem = sizeof(struct mp3entry);
h->offset = 0;
h->data = buf_widx;
h->ridx = buf_widx;
h->widx = buf_widx;
h->available = 0;
h->type = type;
strlcpy(h->path, file, MAX_PATH);
buf_widx += sizeof(struct mp3entry); /* safe because the handle
can't wrap */
/* Inform the buffering thread that we added a handle */
LOGFQUEUE("buffering > Q_HANDLE_ADDED %d", h->id);
queue_post(&buffering_queue, Q_HANDLE_ADDED, h->id);
return h->id;
}
/* Other cases: there is a little more work. */
int fd = open(file, O_RDONLY);
if (fd < 0)
return ERR_FILE_ERROR;
size_t size = filesize(fd);
bool can_wrap = type==TYPE_PACKET_AUDIO || type==TYPE_CODEC;
size_t adjusted_offset = offset;
if (adjusted_offset > size)
adjusted_offset = 0;
/* Reserve extra space because alignment can move data forward */
size_t padded_size = STORAGE_PAD(size-adjusted_offset);
struct memory_handle *h = add_handle(padded_size, can_wrap, false);
if (!h)
{
DEBUGF("%s(): failed to add handle\n", __func__);
close(fd);
return ERR_BUFFER_FULL;
}
strlcpy(h->path, file, MAX_PATH);
h->offset = adjusted_offset;
/* Don't bother to storage align bitmaps because they are not
* loaded directly into the buffer.
*/
if (type != TYPE_BITMAP)
{
size_t alignment_pad;
/* Remember where data area starts, for use by reset_handle */
h->start = buf_widx;
/* Align to desired storage alignment */
alignment_pad = STORAGE_OVERLAP(adjusted_offset - (size_t)(&buffer[buf_widx]));
buf_widx = ringbuf_add(buf_widx, alignment_pad);
}
h->ridx = buf_widx;
h->widx = buf_widx;
h->data = buf_widx;
h->available = 0;
h->filerem = 0;
h->type = type;
#ifdef HAVE_ALBUMART
if (type == TYPE_BITMAP)
{
/* Bitmap file: we load the data instead of the file */
int rc;
mutex_lock(&llist_mod_mutex); /* Lock because load_bitmap yields */
rc = load_image(fd, file, (struct dim*)user_data);
mutex_unlock(&llist_mod_mutex);
if (rc <= 0)
{
rm_handle(h);
close(fd);
return ERR_FILE_ERROR;
}
h->filerem = 0;
h->filesize = rc;
h->available = rc;
h->widx = buf_widx + rc; /* safe because the data doesn't wrap */
buf_widx += rc; /* safe too */
}
else
#endif
{
h->filerem = size - adjusted_offset;
h->filesize = size;
h->available = 0;
h->widx = buf_widx;
}
if (type == TYPE_CUESHEET) {
h->fd = fd;
/* Immediately start buffering those */
LOGFQUEUE("buffering >| Q_BUFFER_HANDLE %d", h->id);
queue_send(&buffering_queue, Q_BUFFER_HANDLE, h->id);
} else {
/* Other types will get buffered in the course of normal operations */
h->fd = -1;
close(fd);
/* Inform the buffering thread that we added a handle */
LOGFQUEUE("buffering > Q_HANDLE_ADDED %d", h->id);
queue_post(&buffering_queue, Q_HANDLE_ADDED, h->id);
}
logf("bufopen: new hdl %d", h->id);
return h->id;
}
