Hello WASM Bidding with ORTBish Stuff

Here we see a cookie addict bidding on supply with whatever he has available. - iSac, ChatGPT, April 15, 2024.

Bidding Using WASM

Very basic R&D in getting this to work, meaning do simple things like:

Write code in C that can log/print to the JS console for debugging.
Expose functions from that C for calling JS side...preferably w/o having to do interesting memory writing/reading.
Integrate this with the way Fledge instantiates and runs the generateBid JS and WASM.

Ideally I'd just link to some repo but since my setup here is optimized for somethings and not others that's not entirely easy...so for now I'm just syncing files here that I'm linking.

Approach

Broadly:

Fledge Code

C "Bidding" Code

The C code I'm emscripten compiling:

Emscripten Command

emcc wasm_helper.c imp_request.c bid_candidate.c cJSON-master/cJSON.c --bind -s MODULARIZE=1 -sEXPORTED_RUNTIME_METHODS=ccall -s EXPORTED_FUNCTIONS=_getBids -s WASM=1 -sENVIRONMENT=shell -I./cJSON-master

Expected Console Logs

At time of writing (US Tax Day, 2024):