gint
xmms_output_read (xmms_output_t *output, char *buffer, gint len)
{
gint ret;
xmms_error_t err;
xmms_error_reset (&err);
g_return_val_if_fail (output, -1);
g_return_val_if_fail (buffer, -1);
g_mutex_lock (output->filler_mutex);
xmms_ringbuf_wait_used (output->filler_buffer, len, output->filler_mutex);
ret = xmms_ringbuf_read (output->filler_buffer, buffer, len);
if (ret == 0 && xmms_ringbuf_iseos (output->filler_buffer)) {
xmms_output_status_set (output, XMMS_PLAYBACK_STATUS_STOP);
g_mutex_unlock (output->filler_mutex);
return -1;
}
g_mutex_unlock (output->filler_mutex);
update_playtime (output, ret);
if (ret < len) {
XMMS_DBG ("Underrun %d of %d (%d)", ret, len, xmms_sample_frame_size_get (output->format));
if ((ret % xmms_sample_frame_size_get (output->format)) != 0) {
xmms_log_error ("***********************************");
xmms_log_error ("* Read non-multiple of sample size,");
xmms_log_error ("* you probably hear noise now :)");
xmms_log_error ("***********************************");
}
output->buffer_underruns++;
}
output->bytes_written += ret;
return ret;
}
/**
* Same as #xmms_ringbuf_read but blocks until you have all the data you want.
*
* @sa xmms_ringbuf_read
*/
guint
xmms_ringbuf_read_wait (xmms_ringbuf_t *ringbuf, gpointer data,
guint len, GMutex *mtx)
{
guint r = 0, res;
guint8 *dest = data;
g_return_val_if_fail (ringbuf, 0);
g_return_val_if_fail (data, 0);
g_return_val_if_fail (len > 0, 0);
g_return_val_if_fail (mtx, 0);
while (r < len) {
res = xmms_ringbuf_read (ringbuf, dest + r, len - r);
r += res;
if (r == len || ringbuf->eos) {
break;
}
if (!res)
g_cond_wait (ringbuf->used_cond, mtx);
}
return r;
}
