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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/librbd/io/ImageDispatcher.h | |
parent | Initial commit. (diff) | |
download | ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/librbd/io/ImageDispatcher.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/librbd/io/ImageDispatcher.h b/src/librbd/io/ImageDispatcher.h new file mode 100644 index 000000000..c7ea56f73 --- /dev/null +++ b/src/librbd/io/ImageDispatcher.h @@ -0,0 +1,76 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef CEPH_LIBRBD_IO_IMAGE_DISPATCHER_H +#define CEPH_LIBRBD_IO_IMAGE_DISPATCHER_H + +#include "include/int_types.h" +#include "common/ceph_mutex.h" +#include "librbd/io/Dispatcher.h" +#include "librbd/io/ImageDispatchInterface.h" +#include "librbd/io/ImageDispatchSpec.h" +#include "librbd/io/ImageDispatcherInterface.h" +#include "librbd/io/Types.h" +#include <atomic> +#include <map> + +struct Context; + +namespace librbd { + +struct ImageCtx; + +namespace io { + +template <typename> struct QosImageDispatch; +template <typename> struct WriteBlockImageDispatch; + +template <typename ImageCtxT = ImageCtx> +class ImageDispatcher : public Dispatcher<ImageCtxT, ImageDispatcherInterface> { +public: + ImageDispatcher(ImageCtxT* image_ctx); + + void invalidate_cache(Context* on_finish) override; + + void shut_down(Context* on_finish) override; + + void apply_qos_schedule_tick_min(uint64_t tick) override; + void apply_qos_limit(uint64_t flag, uint64_t limit, uint64_t burst, + uint64_t burst_seconds) override; + + bool writes_blocked() const override; + int block_writes() override; + void block_writes(Context *on_blocked) override; + + void unblock_writes() override; + void wait_on_writes_unblocked(Context *on_unblocked) override; + + void remap_extents(Extents& image_extents, + ImageExtentsMapType type) override; + +protected: + bool send_dispatch( + ImageDispatchInterface* image_dispatch, + ImageDispatchSpec* image_dispatch_spec) override; + +private: + struct SendVisitor; + struct PreprocessVisitor; + + using typename Dispatcher<ImageCtxT, ImageDispatcherInterface>::C_InvalidateCache; + + std::atomic<uint64_t> m_next_tid{0}; + + QosImageDispatch<ImageCtxT>* m_qos_image_dispatch = nullptr; + WriteBlockImageDispatch<ImageCtxT>* m_write_block_dispatch = nullptr; + + bool preprocess(ImageDispatchSpec* image_dispatch_spec); + +}; + +} // namespace io +} // namespace librbd + +extern template class librbd::io::ImageDispatcher<librbd::ImageCtx>; + +#endif // CEPH_LIBRBD_IO_IMAGE_DISPATCHER_H |