void
package_release(struct package *P) {
while (!queue_empty(&P->response)) {
// drop the message
struct response resp;
queue_pop(&P->response, &resp);
skynet_free(resp.msg);
}
if (P->uncomplete_sz >= 0)
skynet_free(P->uncomplete.msg);
queue_exit(&P->request);
queue_exit(&P->response);
skynet_free(P);
}
/**
* 客户端请求处理函数：这个函数是selector里面的客户端的通信句柄对应的回调函数
**/
si_t client_request_handler(struct egui_uds* uds_ptr, addr_t arg)
{
struct queue message_queue;
si_t ret = 0;
NOT_USED(arg);
EGUI_PRINT_INFO("callback client_request_handler() is called");
queue_init(&message_queue);
/** 接受request回应respond **/
ret = comm_recv_request_and_send_respond(uds_ptr, &message_queue, request_handler);
if(EXIT_NUMBER == ret)
{
return SELECTER_RETURN_TYPE_END;
}
/** 发送相关消息 **/
while(!queue_empty(&message_queue))
{
union message* message_ptr = (union message*)queue_front(&message_queue);
if(0 != comm_send_message(uds_ptr, message_ptr))
{
EGUI_PRINT_ERROR("failed to send message!");
}
queue_pop(&message_queue);
}
queue_exit(&message_queue);
return SELECTER_RETURN_TYPE_CONTINUE;
}
static void ascii_exit(void) {
timer_exit();
exitEmptyArray();
queue_exit();
exit_semaphores();
device_destroy(class_ascii, MKDEV(major, 0));
class_destroy(class_ascii);
printk(KERN_INFO "Device unregistering succeed\n");
return unregister_chrdev(major, DEVICE_NAME);
}
si_t application_exit()
{
struct object * addr;
si_t i, n;
/**
* release focus list
**/
list_exit(&(global_application.focus_list));
/* 有多少个窗口 */
n = vector_size(&(global_application.window_vector));
/* 依次删除窗口 */
for(i = n - 1; i >= 0; -- i)
{
addr = vector_at(&(global_application.window_vector), i);
/*
这里没有逐个注销窗口类对象或者它的派生类对象。
因为窗口管理程序收到用户应用程序的退出请求后，
会释放关于这个用户应用程序的所有资源。
*/
/* 释放这棵树 */
object_tree_free(addr->parent);
/* 从窗口向量中删除这个节点 */
vector_erase(&(global_application.window_vector), i);
}
vector_exit(&(global_application.window_vector));
if(0 != cancel_application())
{
EGUI_PRINT_ERROR("failed to cancle application");
}
event_listener_exit(&global_application.app_event_listener);
queue_exit(&global_application.message_queue);
uds_exit(&global_application.uds);
free(global_application.name);
free(global_application.icon_root_path);
term_restore();
return 0;
}
