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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/librbd/operation/MigrateRequest.h
parentInitial commit. (diff)
downloadceph-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 'src/librbd/operation/MigrateRequest.h')
-rw-r--r--src/librbd/operation/MigrateRequest.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/librbd/operation/MigrateRequest.h b/src/librbd/operation/MigrateRequest.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_OPERATION_MIGRATE_REQUEST_H
+#define CEPH_LIBRBD_OPERATION_MIGRATE_REQUEST_H
+
+#include "librbd/operation/Request.h"
+#include "librbd/Types.h"
+
+namespace librbd {
+
+class ImageCtx;
+class ProgressContext;
+
+namespace operation {
+
+template <typename ImageCtxT = ImageCtx>
+class MigrateRequest : public Request<ImageCtxT>
+{
+public:
+ MigrateRequest(ImageCtxT &image_ctx, Context *on_finish,
+ ProgressContext &prog_ctx)
+ : Request<ImageCtxT>(image_ctx, on_finish), m_prog_ctx(prog_ctx) {
+ }
+
+protected:
+ void send_op() override;
+ bool should_complete(int r) override;
+ bool can_affect_io() const override {
+ return true;
+ }
+ journal::Event create_event(uint64_t op_tid) const override {
+ ceph_abort();
+ return journal::UnknownEvent();
+ }
+
+private:
+ /**
+ * Migrate goes through the following state machine to copy objects
+ * from the parent (migrating source) image:
+ *
+ * @verbatim
+ *
+ * <start>
+ * |
+ * v
+ * MIGRATE_OBJECTS
+ * |
+ * v
+ * <finish>
+ *
+ * @endverbatim
+ *
+ */
+
+ ProgressContext &m_prog_ctx;
+
+ void migrate_objects();
+ void handle_migrate_objects(int r);
+
+ uint64_t get_num_overlap_objects();
+};
+
+} // namespace operation
+} // namespace librbd
+
+extern template class librbd::operation::MigrateRequest<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_OPERATION_MIGRATE_REQUEST_H