Untitled

#include <microhttpd.h>
#include <stdio.h>

#define PORT 8080

static int answer_to_connection(void *cls, struct MHD_Connection *connection, const char *url, const char *method,
                                const char *version, const char *upload_data, size_t *upload_data_size,
                                void **con_cls) {
    const char *page = "<html><body>Hello world!</body></html>";
    struct MHD_Response *response;
    int ret;
    response = MHD_create_response_from_buffer(strlen(page), (void *) page, MHD_RESPMEM_PERSISTENT);
    MHD_add_response_header(response, MHD_HTTP_HEADER_CONTENT_TYPE, "text/html");
    ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
    MHD_destroy_response(response);
    return ret;
}

int main() {
    struct MHD_Daemon *daemon;
    daemon = MHD_start_daemon(MHD_USE_SELECT_INTERNALLY
                              | MHD_USE_THREAD_PER_CONNECTION // if you comment this line, the problem dies
                              , PORT, NULL, NULL,
                              &answer_to_connection, NULL,
                              MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 3,
                              MHD_OPTION_END);
    if (NULL == daemon)
        return 1;
    getchar();
    MHD_stop_daemon(daemon);
    return 0;
}