1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
3 #include "librbd/AsyncRequest.h"
4 #include "librbd/ImageCtx.h"
5 #include "librbd/Utils.h"
6 #include "common/WorkQueue.h"
12 AsyncRequest<T>::AsyncRequest(T &image_ctx, Context *on_finish)
13 : m_image_ctx(image_ctx), m_on_finish(on_finish), m_canceled(false),
15 assert(m_on_finish != NULL);
20 AsyncRequest<T>::~AsyncRequest() {
24 void AsyncRequest<T>::async_complete(int r) {
25 m_image_ctx.op_work_queue->queue(create_callback_context(), r);
29 librados::AioCompletion *AsyncRequest<T>::create_callback_completion() {
30 return util::create_rados_callback(this);
34 Context *AsyncRequest<T>::create_callback_context() {
35 return util::create_context_callback(this);
39 Context *AsyncRequest<T>::create_async_callback_context() {
40 return util::create_context_callback<AsyncRequest<T>,
41 &AsyncRequest<T>::async_complete>(this);
45 void AsyncRequest<T>::start_request() {
46 Mutex::Locker async_ops_locker(m_image_ctx.async_ops_lock);
47 m_image_ctx.async_requests.push_back(&m_xlist_item);
51 void AsyncRequest<T>::finish_request() {
52 decltype(m_image_ctx.async_requests_waiters) waiters;
54 Mutex::Locker async_ops_locker(m_image_ctx.async_ops_lock);
55 assert(m_xlist_item.remove_myself());
57 if (m_image_ctx.async_requests.empty()) {
58 waiters = std::move(m_image_ctx.async_requests_waiters);
62 for (auto ctx : waiters) {
70 template class librbd::AsyncRequest<librbd::ImageCtx>;