eventstore-client-c/test/main.c

#ifdef _WIN32
#include <winsock.h>
#include <windows.h>
#define usleep Sleep
#define sleep(x) Sleep(x*1000)
#endif
#ifdef __linux__
#include <unistd.h>
#endif

#include <stdio.h>
#include "../src/utils/debug.h"
#include "../include/esc.h"

void my_event_appeared(void *ctx, esc_subscription_t *s, esc_resolved_event_t *e) {
    printf("Event Appeared: ctx=%p s=%p e=%s\n", ctx, s, e->event ? e->event->event_type : e->link ? e->link->event_type : "<unresolved>");
}

int main() {
#ifdef _WIN32
    WSADATA wsaData;
    WSAStartup(MAKEWORD(2,0), &wsaData);
#endif

    esc_connection_t* conn = esc_connection_create(esc_default_connection_settings, "tcp://127.0.0.1:1113", NULL);
    if (esc_connection_connect(conn) != 0) {
        error_t* err = esc_connection_last_error(conn);
        fprintf(stderr, "Error: %s code=%d file=%s line=%d\n", err->message, err->code, err->file, err->line);
        return -2;
    }

    uuid_t *event_id = uuid_create();
    buffer_t *data = buffer_from_string("{\"a\":\"1\"}");
    esc_event_data_t* event_data = esc_event_data_create(event_id, "test_event", BOOL_TRUE, data, 0);
    array_t* events = array_create(1, event_data);
    esc_write_result_t* write_result = esc_append_to_stream(conn, "test-123", ESC_VERSION_ANY, events);
    if (write_result == 0) {
        error_t* err = esc_connection_last_error(conn);
        fprintf(stderr, "Error: %s code=%d file=%s line=%d\n", err->message, err->code, err->file, err->line);
        return -3;
    }
    esc_write_result_destroy(write_result);
    array_destroy(events, (array_deallocator)esc_event_data_destroy);
    uuid_destroy(event_id);
    buffer_destroy(data);

    esc_credentials_t* credentials = esc_credentials_create("admin", "changeit");

    esc_all_events_slice_t* result = 0;
    do {
        esc_all_events_slice_t* old_result = result;
        result = esc_connection_read_all_forward(conn, old_result ? old_result->next_position : NULL, 100, credentials);
        if (old_result) esc_all_events_slice_destroy(old_result);
        if (result == 0) {
            error_t* err = esc_connection_last_error(conn);
            fprintf(stderr, "Error: %s code=%d file=%s line=%d\n", err->message, err->code, err->file, err->line);
            break;
        }
        char posbuf1[44];
        char posbuf2[44];
        printf("%s %s %s %u\n", result->read_direction,
               esc_position_format(result->from_position, posbuf1, 44),
               esc_position_format(result->next_position, posbuf2, 44),
               result->is_end_of_stream);
        char uuid_buf[37];
        for (size_t i = 0; i < result->n_events; i++) {
#ifdef _WIN32
            printf("%s %s %lld@%s %llu %llu\n", uuid_format(result->events[i]->event->event_id, uuid_buf, 37),
#else
            printf("%s %s %ld@%s %lu %lu\n", uuid_format(result->events[i]->event->event_id, uuid_buf, 37),
#endif
                   result->events[i]->event->event_type,
                   result->events[i]->event->event_number,
                   result->events[i]->event->event_stream_id,
                   buffer_size(result->events[i]->event->data),
                   buffer_size(result->events[i]->event->metadata));
        }
    } while(result->is_end_of_stream == 0);

    if (result) esc_all_events_slice_destroy(result);

    esc_event_appeared_callback_t my_event_appeared_callback = {my_event_appeared, 0};
    esc_subscription_t* subscription = esc_connection_subscribe_to_all(conn, BOOL_TRUE, my_event_appeared_callback, esc_empty_subscription_dropped_callback, credentials);
	
	sleep(60);

	esc_subscription_destroy(subscription);

    esc_connection_destroy(conn);
    esc_credentials_destroy(credentials);
#ifdef DEBUG
    dbg_list_allocs();
#endif

#ifdef _WIN32
    WSACleanup();
#endif
    return 0;
}