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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/tools/rbd_mirror/image_deleter/SnapshotPurgeRequest.h | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/rbd_mirror/image_deleter/SnapshotPurgeRequest.h')
-rw-r--r-- | src/tools/rbd_mirror/image_deleter/SnapshotPurgeRequest.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_deleter/SnapshotPurgeRequest.h b/src/tools/rbd_mirror/image_deleter/SnapshotPurgeRequest.h new file mode 100644 index 000000000..70cae8518 --- /dev/null +++ b/src/tools/rbd_mirror/image_deleter/SnapshotPurgeRequest.h @@ -0,0 +1,105 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef CEPH_RBD_MIRROR_IMAGE_DELETER_SNAPSHOT_PURGE_REQUEST_H +#define CEPH_RBD_MIRROR_IMAGE_DELETER_SNAPSHOT_PURGE_REQUEST_H + +#include "include/rados/librados.hpp" +#include "cls/rbd/cls_rbd_types.h" +#include <string> +#include <vector> + +class Context; +namespace librbd { struct ImageCtx; } + +namespace rbd { +namespace mirror { +namespace image_deleter { + +template <typename ImageCtxT = librbd::ImageCtx> +class SnapshotPurgeRequest { +public: + static SnapshotPurgeRequest* create(librados::IoCtx &io_ctx, + const std::string &image_id, + Context *on_finish) { + return new SnapshotPurgeRequest(io_ctx, image_id, on_finish); + } + + SnapshotPurgeRequest(librados::IoCtx &io_ctx, const std::string &image_id, + Context *on_finish) + : m_io_ctx(io_ctx), m_image_id(image_id), m_on_finish(on_finish) { + } + + void send(); + +private: + /* + * @verbatim + * + * <start> + * | + * v + * OPEN_IMAGE + * | + * v + * ACQUIRE_LOCK + * | + * | (repeat for each snapshot) + * |/------------------------\ + * | | + * v (skip if not needed) | + * SNAP_UNPROTECT | + * | | + * v (skip if not needed) | + * SNAP_REMOVE -----------------/ + * | + * v + * CLOSE_IMAGE + * | + * v + * <finish> + * + * @endverbatim + */ + + librados::IoCtx &m_io_ctx; + std::string m_image_id; + Context *m_on_finish; + + ImageCtxT *m_image_ctx = nullptr; + int m_ret_val = 0; + + std::vector<librados::snap_t> m_snaps; + cls::rbd::SnapshotNamespace m_snap_namespace; + std::string m_snap_name; + + void open_image(); + void handle_open_image(int r); + + void acquire_lock(); + void handle_acquire_lock(int r); + + void start_snap_unprotect(); + void snap_unprotect(); + void handle_snap_unprotect(int r); + + void snap_remove(); + void handle_snap_remove(int r); + + void close_image(); + void handle_close_image(int r); + + void finish(int r); + + Context *start_lock_op(int* r); + +}; + +} // namespace image_deleter +} // namespace mirror +} // namespace rbd + +extern template class rbd::mirror::image_deleter::SnapshotPurgeRequest<librbd::ImageCtx>; + +#endif // CEPH_RBD_MIRROR_IMAGE_DELETER_SNAPSHOT_PURGE_REQUEST_H + |