Extending interfaces

[Folknology]

Looking at the extended interface example provided in the programming guide : https://www.xmos.com/support/tools/prog ... 53&page=23

Code: Select all

interface uart_tx_if {
   void output_char(uint8_t data);
};
...
extends client interface uart_tx_if : {
   void output_string(client interface uart_tx_if self,
                      uint8_t data[n], unsigned n) {
     for (size_t i = 0; i < n; i++) {
       self.output_char(data[i]);
     }
   }
}

Does the extended code wrapped around the original interface call run on the calling logical core (client, my assumption) or the Implementing core (server) assuming they are both on different cores (not combined)?

regards
Al

[xsamc]

My understanding is that the "extended" parts of an interface will run in the same place as the rest of the interface's methods, however the toolchain may be able to perform additional optimisation in stripping out unused extended methods.

I'll see if I can get confirmation on this.
Cheers,
Sam