On Tue, Dec 05, 2017 at 01:51:39PM +0800, Peter Xu wrote:
> diff --git a/qga/main.c b/qga/main.c
> index 62a62755bd..3b5ebbc1ee 100644
> --- a/qga/main.c
> +++ b/qga/main.c
> @@ -593,7 +593,8 @@ static void process_command(GAState *s, QDict *req)
> }
>
> /* handle requests/control events coming in over the channel */
> -static void process_event(JSONMessageParser *parser, GQueue *tokens)
> +static void process_event(JSONMessageParser *parser, GQueue *tokens,
> + void *opaque)
> {
> GAState *s = container_of(parser, GAState, parser);
> QDict *qdict;
> @@ -1320,7 +1321,7 @@ static int run_agent(GAState *s, GAConfig *config, int
> socket_activation)
> s->command_state = ga_command_state_new();
> ga_command_state_init(s, s->command_state);
> ga_command_state_init_all(s->command_state);
> - json_message_parser_init(&s->parser, process_event);
> + json_message_parser_init(&s->parser, process_event, NULL);This patch leaves the code with 2 ways of getting at state from the parser pointer: 1. Use container_of() like existing users. 2. Use the new (unused) opaque argument. Given that #1 exists, is this patch really necessary? Please explain in the commit description, don't make me look ahead in the patch series. Stefan
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