| #include "../../apis/c/operator/operator_api.h" |
| #include <assert.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
|
|
| DoraInitResult_t dora_init_operator(void) |
| { |
| void *context = malloc(1); |
| char *context_char = (char *)context; |
| *context_char = 0; |
|
|
| DoraInitResult_t result = {.operator_context = context}; |
| return result; |
| } |
|
|
| DoraResult_t dora_drop_operator(void *operator_context) |
| { |
| free(operator_context); |
|
|
| DoraResult_t result = {}; |
| return result; |
| } |
|
|
| OnEventResult_t dora_on_event( |
| RawEvent_t *event, |
| const SendOutput_t *send_output, |
| void *operator_context) |
| { |
| OnEventResult_t result = {.status = DORA_STATUS_CONTINUE}; |
|
|
| char *counter = (char *)operator_context; |
|
|
| if (event->input != NULL) |
| { |
| |
| Input_t *input = event->input; |
|
|
| char *id = dora_read_input_id(input); |
|
|
| if (strcmp(id, "message") == 0) |
| { |
| printf("message event\n"); |
|
|
| Vec_uint8_t data = dora_read_data(input); |
| assert(data.ptr != NULL); |
|
|
| *counter += 1; |
| printf("C operator received message `%.*s`, counter: %i\n", (int)data.len, data.ptr, *counter); |
|
|
| char *out_id = "counter"; |
| char *out_id_heap = strdup(out_id); |
|
|
| int data_alloc_size = 100; |
| char *out_data = (char *)malloc(data_alloc_size); |
| int count = snprintf(out_data, data_alloc_size, "The current counter value is %d", *counter); |
| assert(count >= 0 && count < 100); |
|
|
| DoraResult_t res = dora_send_operator_output(send_output, out_id_heap, (uint8_t *)out_data, strlen(out_data)); |
| result.result = res; |
|
|
| dora_free_data(data); |
| } |
| else |
| { |
| printf("C operator received unexpected input %s, context: %i\n", id, *counter); |
| } |
|
|
| dora_free_input_id(id); |
| } |
| if (event->stop) |
| { |
| printf("C operator received stop event\n"); |
| } |
|
|
| return result; |
| } |
|
|
