Zorro Plugin -

double PLUGIN_CALL(char* name, double* params, int nParams) if(strcmp(name, "sentiment") == 0 && nParams >= 1) // params[0] is a pointer to a string? Actually passed as double hack. // Better: pass ticker as string via a separate function. return get_sentiment((char*)(int)params[0]); // unsafe but illustrative

return plugin_call("sentiment", (double)string_to_ptr(ticker)); zorro plugin

| Method | Latency (mean) | Throughput (calls/sec) | Memory overhead | |--------|----------------|------------------------|------------------| | Native S-Lang function | 0.2 µs | 5,000,000 | 0 MB | | Plugin (simple math) | 1.5 µs | 660,000 | 1.2 MB | | Plugin (sentiment with cache) | 8.2 ms | 122 | 45 MB | | External Python via socket | 23 ms | 43 | 210 MB | // unsafe but illustrative return plugin_call("sentiment"

// Custom user function callable from S-Lang double PLUGIN_CALL(char* name, double* params, int nParams) if(strcmp(name, "myFunction") == 0) return myFunction(params[0], params[1]); return -1; // error int nParams) if(strcmp(name

int PLUGIN_INIT(void) curl_global_init(CURL_GLOBAL_DEFAULT); curl = curl_easy_init(); model = load_model("sentiment.onnx"); return (curl && model) ? 0 : 1;

double get_sentiment(const char* ticker) char url[256]; snprintf(url, sizeof(url), "https://newsapi.org/v2/everything?q=%s", ticker); // Perform HTTP request -> jsonResponse double score = model->predict(jsonResponse); return score;

function run()