int ipc_inst_start(void)
{
int connfd;
ipc_message msg;
int ret;
connfd = prepare_ipc();
if (connfd < 0)
return -1;
memset(&msg, 0, sizeof(msg));
msg.magic = IPC_MAGIC;
msg.type = REQ_INSTALL;
ret = write(connfd, &msg, sizeof(msg));
if (ret != sizeof(msg)) {
close(connfd);
return -1;
}
ret = read(connfd, &msg, sizeof(msg));
if (ret <= 0) {
TRACE("No answer from server");
close(connfd);
return -1;
}
if (msg.type != ACK) {
TRACE("Installation not accepted %s", msg.data.msg);
close(connfd);
return -1;
}
return connfd;
}
int ipc_get_status(ipc_message *msg)
{
int ret;
int connfd;
connfd = prepare_ipc();
if (connfd < 0) {
return -1;
}
memset(msg, 0, sizeof(*msg));
msg->magic = IPC_MAGIC;
msg->type = GET_STATUS;
ret = write(connfd, msg, sizeof(*msg));
if (ret != sizeof(*msg)) {
TRACE("IPC Error");
close(connfd);
return -1;
}
ret = read(connfd, msg, sizeof(*msg));
if (ret <= 0) {
TRACE("No answer from server");
close(connfd);
return -1;
}
close(connfd);
return 0;
}
void
mainloop(void)
{
extern int game_is_being_shut_down;
struct task *current_task;
struct timeval tv;
double task_start;
#ifdef SUPER_SNOOP
read_snoop_file();
#endif
(void) printf("Setting up ipc.\n");
(void)fflush(stdout);
prepare_ipc();
(void) signal(SIGFPE, sigfpe_handler);
while (!game_is_being_shut_down) {
while (task_head.next == &task_head) {
set_current_time();
deliver_signals();
call_out(&tv);
if (task_head.next != &task_head)
tv.tv_sec = tv.tv_usec = 0;
nd_select(&tv);
check_for_slow_shut_down();
}
set_current_time();
current_task = task_head.next;
remove_task(current_task);
runtask(current_task);
task_start = current_time;
set_current_time();
update_runq_av((num_tasks + 1.0) * (current_time - task_start));
/* process callouts and IO */
deliver_signals();
if (task_head.next != &task_head ||
current_task->next == current_task) {
tv.tv_sec = tv.tv_usec = 0;
call_out(NULL);
} else
call_out(&tv);
if (task_head.next != &task_head ||
current_task->next == current_task)
tv.tv_sec = tv.tv_usec = 0;
nd_select(&tv);
check_for_slow_shut_down();
if (current_task->next == current_task)
append_task(current_task); /* reschedule the task */
else
free(current_task);
}
shutdowngame();
}
