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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef CEPH_LIBRBD_TRASH_REMOVE_REQUEST_H
#define CEPH_LIBRBD_TRASH_REMOVE_REQUEST_H
#include "include/common_fwd.h"
#include "include/utime.h"
#include "include/rados/librados.hpp"
#include "cls/rbd/cls_rbd_types.h"
#include <string>
class Context;
namespace librbd {
struct ImageCtx;
class ProgressContext;
namespace asio { struct ContextWQ; }
namespace trash {
template <typename ImageCtxT = librbd::ImageCtx>
class RemoveRequest {
public:
static RemoveRequest* create(librados::IoCtx &io_ctx,
const std::string &image_id,
asio::ContextWQ *op_work_queue, bool force,
ProgressContext &prog_ctx, Context *on_finish) {
return new RemoveRequest(io_ctx, image_id, op_work_queue, force, prog_ctx,
on_finish);
}
static RemoveRequest* create(librados::IoCtx &io_ctx, ImageCtxT *image_ctx,
asio::ContextWQ *op_work_queue, bool force,
ProgressContext &prog_ctx, Context *on_finish) {
return new RemoveRequest(io_ctx, image_ctx, op_work_queue, force, prog_ctx,
on_finish);
}
RemoveRequest(librados::IoCtx &io_ctx, const std::string &image_id,
asio::ContextWQ *op_work_queue, bool force,
ProgressContext &prog_ctx, Context *on_finish)
: m_io_ctx(io_ctx), m_image_id(image_id), m_op_work_queue(op_work_queue),
m_force(force), m_prog_ctx(prog_ctx), m_on_finish(on_finish),
m_cct(reinterpret_cast<CephContext *>(io_ctx.cct())) {
}
RemoveRequest(librados::IoCtx &io_ctx, ImageCtxT *image_ctx,
asio::ContextWQ *op_work_queue, bool force,
ProgressContext &prog_ctx, Context *on_finish)
: m_io_ctx(io_ctx), m_image_ctx(image_ctx), m_image_id(m_image_ctx->id),
m_op_work_queue(op_work_queue), m_force(force), m_prog_ctx(prog_ctx),
m_on_finish(on_finish),
m_cct(reinterpret_cast<CephContext *>(io_ctx.cct())) {
}
void send();
private:
/*
* @verbatim
*
* <start>
* |
* v
* SET_STATE (removing) * * * * * * *> CLOSE_IMAGE
* | |
* v |
* REMOVE_IMAGE * * *> SET_STATE (normal) |
* | | |
* v | |
* REMOVE_TRASH_ENTRY | |
* | | |
* v | |
* <finish> <-------------/<---------------/
*
* @endverbatim
*/
librados::IoCtx &m_io_ctx;
ImageCtxT *m_image_ctx = nullptr;
std::string m_image_id;
asio::ContextWQ *m_op_work_queue;
bool m_force;
ProgressContext &m_prog_ctx;
Context *m_on_finish;
CephContext *m_cct;
cls::rbd::TrashImageState m_trash_set_state =
cls::rbd::TRASH_IMAGE_STATE_REMOVING;
cls::rbd::TrashImageState m_trash_expect_state =
cls::rbd::TRASH_IMAGE_STATE_NORMAL;
int m_ret_val = 0;
void set_state();
void handle_set_state(int r);
void close_image();
void handle_close_image(int r);
void remove_image();
void handle_remove_image(int r);
void remove_trash_entry();
void handle_remove_trash_entry(int r);
void finish(int r);
};
} // namespace trash
} // namespace librbd
extern template class librbd::trash::RemoveRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_TRASH_REMOVE_REQUEST_H
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