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wayland: Use read_all() when reading wayland selections

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Plain input stream read() calls don't provide hard guarantees about
the number of bytes read, but the async method callback sort of
relies on bytes being less than requested only when reaching the
end of the transmitted data. If that happens mid transfer, that
doesn't bode well.

This is actually the behavior of g_input_stream_read_all(), so
switch to using it.
This commit is contained in:
Carlos Garnacho 2018-02-07 18:24:02 +01:00
parent 61bc1a7d6f
commit 006cdac531
1 changed files with 6 additions and 7 deletions
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7
src/wayland/meta-xwayland-selection.c
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@ -689,9 +689,8 @@ wayland_data_read_cb (GObject *object,
GError *error = NULL; GError *error = NULL;
gsize bytes_read; gsize bytes_read;
bytes_read = g_input_stream_read_finish (G_INPUT_STREAM (object), if (!g_input_stream_read_all_finish (G_INPUT_STREAM (object),
res, &error); res, &bytes_read, &error))
if (error)
{ {
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{ {
@ -762,7 +761,7 @@ wayland_selection_data_read (MetaSelectionBridge *selection)
{ {
WaylandSelectionData *data = selection->wayland_selection; WaylandSelectionData *data = selection->wayland_selection;
g_input_stream_read_async (data->stream, data->buffer, g_input_stream_read_all_async (data->stream, data->buffer,
INCR_CHUNK_SIZE, G_PRIORITY_DEFAULT, INCR_CHUNK_SIZE, G_PRIORITY_DEFAULT,
data->cancellable, data->cancellable,
wayland_data_read_cb, selection); wayland_data_read_cb, selection);