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-rw-r--r--src/librbd/trash/RemoveRequest.h119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/librbd/trash/RemoveRequest.h b/src/librbd/trash/RemoveRequest.h
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+++ b/src/librbd/trash/RemoveRequest.h
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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/utime.h"
+#include "include/rados/librados.hpp"
+#include "cls/rbd/cls_rbd_types.h"
+#include <string>
+
+class CephContext;
+class Context;
+class ContextWQ;
+
+namespace librbd {
+
+class ProgressContext;
+
+struct ImageCtx;
+
+namespace trash {
+
+template <typename ImageCtxT = librbd::ImageCtx>
+class RemoveRequest {
+public:
+ static RemoveRequest* create(librados::IoCtx &io_ctx,
+ const std::string &image_id,
+ 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,
+ 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,
+ 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,
+ 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;
+ 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