[Libevent-users] How to break out libevent's dispatch loop

I've implemented a tiny webserver in a separate thread using the nice libevent library. The webserver runs event_base_dispatch() to process all events. What I need is a way to break out this dispatch loop from the main thread.

It boils down to the following C++ code:

#include <stdlib.h>

#include <signal.h>

#include <thread>

#include <evhttp.h>

struct event_base *eb;

std::thread t;

static volatile sig_atomic_t bailout = false;

void my_signal_handler(int) {

bailout = true;

}

void onRequest(evhttp_request *req, void *) {

struct evbuffer *OutBuf = evhttp_request_get_output_buffer(req);

evbuffer_add_printf(OutBuf, "<html><body>Testing 1-2-3</body></html>");

evhttp_send_reply(req, HTTP_OK, "OK", OutBuf);

}

void dispatch() {

eb = event_base_new();

struct evhttp *http = evhttp_new(eb);

evhttp_set_gencb(http, &onRequest, NULL);

evhttp_bind_socket_with_handle(http, "0.0.0.0", 5555);

event_base_dispatch(eb);

}

int main() {

struct sigaction sigIntHandler;

sigIntHandler.sa_handler = my_signal_handler;

sigemptyset(&sigIntHandler.sa_mask);

sigIntHandler.sa_flags = 0;

sigaction(SIGINT, &sigIntHandler, NULL);

t = std::thread { &dispatch };

while ( ! bailout ) {

std::this_thread::sleep_for(std::chrono::seconds(1));

}

event_base_loopexit(eb, NULL);

t.join();

}

The behavior is that if you run the program, request a page, abort the program by Ctrl-C, the event_base_dispatch() keeps running *until* you fetch another web page. Only then the loop aborts and the program terminates. What I need is that the dispatch loop is exited immediately, not after the next page request. Is this possible?