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-rw-r--r--src/librbd/journal/OpenRequest.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/src/librbd/journal/OpenRequest.h b/src/librbd/journal/OpenRequest.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_JOURNAL_OPEN_REQUEST_H
+#define CEPH_LIBRBD_JOURNAL_OPEN_REQUEST_H
+
+#include "include/int_types.h"
+#include "librbd/journal/TypeTraits.h"
+
+struct Context;
+struct Mutex;
+
+namespace librbd {
+
+struct ImageCtx;
+
+namespace journal {
+
+struct ImageClientMeta;
+struct TagData;
+
+template <typename ImageCtxT = ImageCtx>
+class OpenRequest {
+public:
+ typedef typename TypeTraits<ImageCtxT>::Journaler Journaler;
+
+ static OpenRequest* create(ImageCtxT *image_ctx, Journaler *journaler,
+ Mutex *lock, journal::ImageClientMeta *client_meta,
+ uint64_t *tag_tid, journal::TagData *tag_data,
+ Context *on_finish) {
+ return new OpenRequest(image_ctx, journaler, lock, client_meta, tag_tid,
+ tag_data, on_finish);
+ }
+
+ OpenRequest(ImageCtxT *image_ctx, Journaler *journaler, Mutex *lock,
+ journal::ImageClientMeta *client_meta, uint64_t *tag_tid,
+ journal::TagData *tag_data, Context *on_finish);
+
+ void send();
+
+private:
+ /**
+ * @verbatim
+ *
+ * <start>
+ * |
+ * v
+ * INIT
+ * |
+ * v
+ * GET_TAGS
+ * |
+ * v
+ * <finish>
+ *
+ * @endverbatim
+ */
+
+
+ ImageCtxT *m_image_ctx;
+ Journaler *m_journaler;
+ Mutex *m_lock;
+ journal::ImageClientMeta *m_client_meta;
+ uint64_t *m_tag_tid;
+ journal::TagData *m_tag_data;
+ Context *m_on_finish;
+
+ uint64_t m_tag_class = 0;
+
+ void send_init();
+ void handle_init(int r);
+
+ void send_get_tags();
+ void handle_get_tags(int r);
+
+ void finish(int r);
+
+};
+
+} // namespace journal
+} // namespace librbd
+
+extern template class librbd::journal::OpenRequest<librbd::ImageCtx>;
+
+#endif // CEPH_LIBRBD_JOURNAL_OPEN_REQUEST_H