ev_async watcher's callback is never triggering on ev_async_send()

[trafdev]

Hello.

Simple code:

#include <ev.h>
#include <stdio.h>
#include <pthread.h>

static void async_cb (EV_P_ ev_async *w, int revents) {
     printf("never got called :(\n");
     return;
}

static ev_async async_w;

static struct ev_loop* dyn_loop;

void* thread_loop(void* args) {
     dyn_loop = ev_loop_new(0);
     ev_async_init(&async_w, async_cb);
     ev_async_start(dyn_loop, &async_w);
     ev_run(dyn_loop);
     int a = 0;
}

static ev_async mysig;

static void timeout_cb(EV_P_ ev_timer *w, int revents) {
     ev_async_send (dyn_loop, &mysig);
}

struct ev_loop* loop = ev_default_loop(0);

int main(int argc, char **argv) {
     pthread_t thread;
     pthread_create(&thread, NULL, thread_loop, NULL);

     static ev_timer tw;
     ev_timer_init (&tw, timeout_cb, 5, 3);
     ev_timer_start(loop, &tw);

     ev_run(loop, 0);

     return 0;
}


Should cause async_cb triggering from timeout_cb, but this never happens 
(timout_cb is triggering without problems).
Tried many combinations (like creating dyn_loop in main thread etc - no 
effect). Please help!