http_parser_settings' callback not called

[coanor]

I ported webdis code into a HTTP server that only serve as a server.

I have read most of webdis source code. I use cscope to find where http_parser_settings's callback calling, but following callbacks not been called:

• on_url
• on_query_string
• on_message_complete
• on_header_field
• on_header_value

This confused me a lot. While a client object comes, I don't know whether it's request is complete, as I expect, while a client HTTP request complete, on_message_complete should be called.

Why set these callbacks that no code has really executed?

[nicolasff]

Hi,

These callbacks are called, from http-parser.c. The parser declares callbacks named on_something and calls them using the macro CALLBACK(something): https://github.com/nicolasff/webdis/blob/master/http-parser/http_parser.c#L59
Look for CALLBACK in http_parser.c and you'll find lots of them. This HTTP parsing library comes from Joyent.

cscope does not interpret preprocessor macros and therefore does not know what calls these functions.

Regards,

Nicolas

[coanor]

ohh, thanks a lot.