static void abt_check_events(int idx)
{
int n, ret;
char recv_buf[RECV_BUF_LEN];
if (!abt_alive) return;
ret = ABT_mutex_trylock(g_mutex);
if (ret == ABT_ERR_MUTEX_LOCKED) return;
assert(ret == ABT_SUCCESS);
ret = poll(&abt_pfd, 1, 1);
if (ret == -1) {
handle_error("ERROR: poll");
} else if (ret != 0) {
if (abt_pfd.revents & POLLIN) {
bzero(recv_buf, RECV_BUF_LEN);
n = read(abt_pfd.fd, recv_buf, RECV_BUF_LEN);
if (n < 0) handle_error("ERROR: read");
printf("\nES%d: received request '%c'\n", idx, recv_buf[0]);
switch (recv_buf[0]) {
case 'd': decrease_xstream(); break;
case 'i': increase_xstream(); break;
case 'n': send_num_xstream(); break;
case 'q': abt_disconnect(); break;
default:
printf("Unknown commend: %s\n", recv_buf);
break;
}
}
if (abt_pfd.revents & POLLRDHUP) {
abt_alive = 0;
printf("Server disconnected...\n");
}
abt_pfd.revents = 0;
}
ABT_mutex_unlock(g_mutex);
}
GLT_func_prefix int glt_mutex_trylock(GLT_mutex mutex) {
return ABT_mutex_trylock(mutex);
}
