| extern "C" |
| { |
| #include "../../../apis/c/node/node_api.h" |
| } |
|
|
| #include <iostream> |
| #include <vector> |
|
|
| int run(void *dora_context) |
| { |
| unsigned char counter = 0; |
|
|
| for (int i = 0; i < 20; i++) |
| { |
| void *event = dora_next_event(dora_context); |
| if (event == NULL) |
| { |
| printf("[c node] ERROR: unexpected end of event\n"); |
| return -1; |
| } |
|
|
| enum DoraEventType ty = read_dora_event_type(event); |
|
|
| if (ty == DoraEventType_Input) |
| { |
| counter += 1; |
|
|
| char *id_ptr; |
| size_t id_len; |
| read_dora_input_id(event, &id_ptr, &id_len); |
| std::string id(id_ptr, id_len); |
|
|
| char *data_ptr; |
| size_t data_len; |
| read_dora_input_data(event, &data_ptr, &data_len); |
| std::vector<unsigned char> data; |
| for (size_t i = 0; i < data_len; i++) |
| { |
| data.push_back(*(data_ptr + i)); |
| } |
|
|
| std::cout |
| << "Received input " |
| << " (counter: " << (unsigned int)counter << ") data: ["; |
| for (unsigned char &v : data) |
| { |
| std::cout << (unsigned int)v << ", "; |
| } |
| std::cout << "]" << std::endl; |
|
|
| std::vector<unsigned char> out_vec{counter}; |
| std::string out_id = "counter"; |
| int result = dora_send_output(dora_context, &out_id[0], out_id.length(), (char *)&counter, 1); |
| if (result != 0) |
| { |
| std::cerr << "failed to send output" << std::endl; |
| return 1; |
| } |
| } |
| else if (ty == DoraEventType_Stop) |
| { |
| printf("[c node] received stop event\n"); |
| } |
| else |
| { |
| printf("[c node] received unexpected event: %d\n", ty); |
| } |
|
|
| free_dora_event(event); |
| } |
| return 0; |
| } |
|
|
| int main() |
| { |
| std::cout << "HELLO FROM C++ (using C API)" << std::endl; |
|
|
| auto dora_context = init_dora_context_from_env(); |
| auto ret = run(dora_context); |
| free_dora_context(dora_context); |
|
|
| std::cout << "GOODBYE FROM C++ node (using C API)" << std::endl; |
|
|
| return ret; |
| } |
|
|
