static void ufd_handler(void *context, qd_user_fd_t *ufd)
{
long dir = (long) context;
char buffer;
ssize_t len;
static int in_read = 0;
static int in_write = 0;
if (dir == 0) { // READ
in_read++;
assert(in_read == 1);
if (!qd_user_fd_is_readable(ufd_read)) {
sprintf(stored_error, "Expected Readable");
qd_server_stop(qd);
} else {
len = read(fd[0], &buffer, 1);
if (len == 1) {
read_count++;
if (read_count == OCTET_COUNT)
qd_server_stop(qd);
}
qd_user_fd_activate_read(ufd_read);
}
in_read--;
} else { // WRITE
in_write++;
assert(in_write == 1);
if (!qd_user_fd_is_writeable(ufd_write)) {
sprintf(stored_error, "Expected Writable");
qd_server_stop(qd);
} else {
if (write(fd[1], "X", 1) < 0) abort();
write_count++;
if (write_count < OCTET_COUNT)
qd_user_fd_activate_write(ufd_write);
}
in_write--;
}
}
/**
* This is the OS signal handler, invoked on an undetermined thread at a completely
* arbitrary point of time.
*/
static void signal_handler(int signum)
{
/* Ignore future signals, dispatch may already be freed */
signal(SIGHUP, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
signal(SIGTERM, SIG_IGN);
signal(SIGINT, SIG_IGN);
switch (signum) {
case SIGINT:
exit_with_sigint = 1;
// fallthrough
case SIGQUIT:
case SIGTERM:
qd_server_stop(dispatch); /* qpid_server_stop is signal-safe */
break;
default:
break;
}
}
