From: Quentin Glidic <[email protected]> Practical example: a client supporting version 2 of wl_output will wait for the wl_output.done event before starting wl_output-related operations. However, if the server only supports version 1, no event will ever come, and it must fallback to use the wl_output.geometry event alone. Without this macro, it cannot check for that in a nice way.
Signed-off-by: Quentin Glidic <[email protected]> --- I do not have a real world use-case for the request macro on the server-side, but I guess you could do the same: wait the for a "commit" request if client is new enough, otherwise use some older request as commit. Actually I think there was something like that somewhere, now that I write that, but I do not remember where exactly. src/scanner.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/scanner.c b/src/scanner.c index 4708cae..a4c1984 100644 --- a/src/scanner.c +++ b/src/scanner.c @@ -1544,10 +1544,12 @@ emit_header(struct protocol *protocol, enum side side) emit_structs(&i->request_list, i, side); emit_opcodes(&i->event_list, i); emit_opcode_versions(&i->event_list, i); + emit_opcode_versions(&i->request_list, i); emit_event_wrappers(&i->event_list, i); } else { emit_structs(&i->event_list, i, side); emit_opcodes(&i->request_list, i); + emit_opcode_versions(&i->event_list, i); emit_opcode_versions(&i->request_list, i); emit_stubs(&i->request_list, i); } -- 2.9.0 _______________________________________________ wayland-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/wayland-devel
