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const targetDir = Deno.execPath().replace(/[^\/\\]+$/, "");const [libPrefix, libSuffix] = {  darwin: ["lib", "dylib"],  linux: ["lib", "so"],  windows: ["", "dll"],}[Deno.build.os];const libPath = `${targetDir}/${libPrefix}test_ffi.${libSuffix}`;
const dylib = Deno.dlopen(  libPath,  {    store_function: {      parameters: ["function"],      result: "void",    },    call_stored_function: {      parameters: [],      result: "void",    },    call_stored_function_thread_safe_and_log: {      parameters: [],      result: "void",    },  } as const,);
const tripleLogCallback = () => {  console.log("Sync");  Promise.resolve().then(() => {    console.log("Async");    callback.unref();  });  setTimeout(() => {    console.log("Timeout");    callback.unref();  }, 10);};
const callback = new Deno.UnsafeCallback(  {    parameters: [],    result: "void",  } as const,  tripleLogCallback,);
// Store functiondylib.symbols.store_function(callback.pointer);
// Synchronous callback loggingconsole.log("SYNCHRONOUS");dylib.symbols.call_stored_function();console.log("STORED_FUNCTION called");
// Wait to make sure synch logging and async loggingawait new Promise((res) => setTimeout(res, 100));
// Ref twice to make sure both `Promise.resolve().then()` and `setTimeout()`// must resolve before isolate exists.callback.ref();callback.ref();
console.log("THREAD SAFE");dylib.symbols.call_stored_function_thread_safe_and_log();