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Diffstat (limited to 'src/librbd/crypto/CryptoImageDispatch.h')
-rw-r--r-- | src/librbd/crypto/CryptoImageDispatch.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/librbd/crypto/CryptoImageDispatch.h b/src/librbd/crypto/CryptoImageDispatch.h new file mode 100644 index 000000000..3ce658981 --- /dev/null +++ b/src/librbd/crypto/CryptoImageDispatch.h @@ -0,0 +1,111 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef CEPH_LIBRBD_CRYPTO_CRYPTO_IMAGE_DISPATCH_H +#define CEPH_LIBRBD_CRYPTO_CRYPTO_IMAGE_DISPATCH_H + +#include "librbd/io/ImageDispatchInterface.h" + +namespace librbd { +namespace crypto { + +class CryptoImageDispatch : public io::ImageDispatchInterface { +public: + static CryptoImageDispatch* create(uint64_t data_offset) { + return new CryptoImageDispatch(data_offset); + } + CryptoImageDispatch(uint64_t data_offset); + + io::ImageDispatchLayer get_dispatch_layer() const override { + return io::IMAGE_DISPATCH_LAYER_CRYPTO; + } + + void shut_down(Context* on_finish) override { + on_finish->complete(0); + } + + bool read( + io::AioCompletion* aio_comp, io::Extents &&image_extents, + io::ReadResult &&read_result, IOContext io_context, int op_flags, + int read_flags, const ZTracer::Trace &parent_trace, uint64_t tid, + std::atomic<uint32_t>* image_dispatch_flags, + io::DispatchResult* dispatch_result, Context** on_finish, + Context* on_dispatched) override { + return false; + } + + bool write( + io::AioCompletion* aio_comp, io::Extents &&image_extents, bufferlist &&bl, + int op_flags, const ZTracer::Trace &parent_trace, + uint64_t tid, std::atomic<uint32_t>* image_dispatch_flags, + io::DispatchResult* dispatch_result, Context** on_finish, + Context* on_dispatched) override { + return false; + } + + bool discard( + io::AioCompletion* aio_comp, io::Extents &&image_extents, + uint32_t discard_granularity_bytes, const ZTracer::Trace &parent_trace, + uint64_t tid, std::atomic<uint32_t>* image_dispatch_flags, + io::DispatchResult* dispatch_result, Context** on_finish, + Context* on_dispatched) override { + return false; + } + + bool write_same( + io::AioCompletion* aio_comp, io::Extents &&image_extents, bufferlist &&bl, + int op_flags, const ZTracer::Trace &parent_trace, + uint64_t tid, std::atomic<uint32_t>* image_dispatch_flags, + io::DispatchResult* dispatch_result, Context** on_finish, + Context* on_dispatched) override { + return false; + } + + bool compare_and_write( + io::AioCompletion* aio_comp, io::Extents &&image_extents, + bufferlist &&cmp_bl, bufferlist &&bl, uint64_t *mismatch_offset, + int op_flags, const ZTracer::Trace &parent_trace, + uint64_t tid, std::atomic<uint32_t>* image_dispatch_flags, + io::DispatchResult* dispatch_result, Context** on_finish, + Context* on_dispatched) override { + return false; + } + + bool flush( + io::AioCompletion* aio_comp, io::FlushSource flush_source, + const ZTracer::Trace &parent_trace, uint64_t tid, + std::atomic<uint32_t>* image_dispatch_flags, + io::DispatchResult* dispatch_result, Context** on_finish, + Context* on_dispatched) override { + return false; + } + + bool list_snaps( + io::AioCompletion* aio_comp, io::Extents&& image_extents, + io::SnapIds&& snap_ids, int list_snaps_flags, + io::SnapshotDelta* snapshot_delta, const ZTracer::Trace &parent_trace, + uint64_t tid, std::atomic<uint32_t>* image_dispatch_flags, + io::DispatchResult* dispatch_result, Context** on_finish, + Context* on_dispatched) override { + return false; + } + + bool invalidate_cache(Context* on_finish) override { + return false; + } + + // called directly by ImageDispatcher + // TODO: hoist these out and remove CryptoImageDispatch since it's + // just a placeholder + void remap_to_physical(io::Extents& image_extents, io::ImageArea area); + io::ImageArea remap_to_logical(io::Extents& image_extents); + +private: + uint64_t m_data_offset; + +}; + +} // namespace crypto +} // namespace librbd + +#endif // CEPH_LIBRBD_CRYPTO_CRYPTO_IMAGE_DISPATCH_H |