C++ (Cpp) DynamicPngStack::Unref Exemples

Exemple #1

Fichier : dynamic_png_stack.cpp Projet : BrazilianJoe/node-png

int 
DynamicPngStack::EIO_PngEncodeAfter(eio_req *req)
{
    HandleScope scope;

    ev_unref(EV_DEFAULT_UC);
    encode_request *enc_req = (encode_request *)req->data;
    DynamicPngStack *png = (DynamicPngStack *)enc_req->png_obj;

    Handle<Value> argv[3];

    if (enc_req->error) {
        argv[0] = Undefined();
        argv[1] = Undefined();
        argv[2] = ErrorException(enc_req->error);
    }
    else {
        Buffer *buf = Buffer::New(enc_req->png_len);
        memcpy(BufferData(buf), enc_req->png, enc_req->png_len);
        argv[0] = buf->handle_;
        argv[1] = png->Dimensions();
        argv[2] = Undefined();
    }

    TryCatch try_catch; // don't quite see the necessity of this

    enc_req->callback->Call(Context::GetCurrent()->Global(), 3, argv);

    if (try_catch.HasCaught())
        FatalException(try_catch);

    enc_req->callback.Dispose();
    free(enc_req->png);
    free(enc_req->error);

    png->Unref();
    free(enc_req);

    return 0;
}