File size: 2,207 Bytes
b98ffbb |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 |
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;
}
|