// Callback invoked by libuv after it copies the data into the buffer provided
// by `alloc_cb`. This is also called on EOF or when `alloc_cb` returns a
// 0-length buffer.
static void read_cb(uv_stream_t *stream, ssize_t cnt, const uv_buf_t *buf)
{
RStream *rstream = handle_get_rstream((uv_handle_t *)stream);
if (cnt <= 0) {
if (cnt != UV_ENOBUFS) {
DLOG("Closing RStream(%p)", rstream);
// Read error or EOF, either way stop the stream and invoke the callback
// with eof == true
uv_read_stop(stream);
rstream->cb(rstream, rstream->data, true);
}
return;
}
// at this point we're sure that cnt is positive, no error occurred
size_t nread = (size_t) cnt;
// Data was already written, so all we need is to update 'wpos' to reflect
// the space actually used in the buffer.
rbuffer_produced(rstream->buffer, nread);
rstream->cb(rstream, rstream->data, false);
}
void rstream_read_event(Event event)
{
RStream *rstream = event.data.rstream.ptr;
rstream->cb(rstream, rstream->data, event.data.rstream.eof);
}