Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/src/client/ObjecterWriteback.h b/src/client/ObjecterWriteback.h
new file mode 100644
index 000000000..867ef5aa0
--- /dev/null
+++ b/src/client/ObjecterWriteback.h
@@ -0,0 +1,70 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#ifndef CEPH_OSDC_OBJECTERWRITEBACKHANDLER_H
+#define CEPH_OSDC_OBJECTERWRITEBACKHANDLER_H
+
+#include "osdc/Objecter.h"
+#include "osdc/WritebackHandler.h"
+
+class ObjecterWriteback : public WritebackHandler {
+ public:
+  ObjecterWriteback(Objecter *o, Finisher *fin, ceph::mutex *lock)
+    : m_objecter(o),
+      m_finisher(fin),
+      m_lock(lock) { }
+  ~ObjecterWriteback() override {}
+
+  void read(const object_t& oid, uint64_t object_no,
+		    const object_locator_t& oloc, uint64_t off, uint64_t len,
+		    snapid_t snapid, bufferlist *pbl, uint64_t trunc_size,
+		    __u32 trunc_seq, int op_flags,
+                    const ZTracer::Trace &parent_trace,
+                    Context *onfinish) override {
+    m_objecter->read_trunc(oid, oloc, off, len, snapid, pbl, 0,
+			   trunc_size, trunc_seq,
+			   new C_OnFinisher(new C_Lock(m_lock, onfinish),
+					    m_finisher));
+  }
+
+  bool may_copy_on_write(const object_t& oid, uint64_t read_off,
+				 uint64_t read_len, snapid_t snapid) override {
+    return false;
+  }
+
+  ceph_tid_t write(const object_t& oid, const object_locator_t& oloc,
+			   uint64_t off, uint64_t len,
+			   const SnapContext& snapc, const bufferlist &bl,
+			   ceph::real_time mtime, uint64_t trunc_size,
+			   __u32 trunc_seq, ceph_tid_t journal_tid,
+                           const ZTracer::Trace &parent_trace,
+			   Context *oncommit) override {
+    return m_objecter->write_trunc(oid, oloc, off, len, snapc, bl, mtime, 0,
+				   trunc_size, trunc_seq,
+				   new C_OnFinisher(new C_Lock(m_lock,
+							       oncommit),
+						    m_finisher));
+  }
+
+  bool can_scattered_write() override { return true; }
+  using WritebackHandler::write;
+  ceph_tid_t write(const object_t& oid, const object_locator_t& oloc,
+                           std::vector<std::pair<uint64_t, bufferlist> >& io_vec,
+			   const SnapContext& snapc, ceph::real_time mtime,
+			   uint64_t trunc_size, __u32 trunc_seq,
+			   Context *oncommit) override {
+    ObjectOperation op;
+    for (auto& [offset, bl] : io_vec)
+      op.write(offset, bl, trunc_size, trunc_seq);
+
+    return m_objecter->mutate(oid, oloc, op, snapc, mtime, 0,
+			      new C_OnFinisher(new C_Lock(m_lock, oncommit),
+					       m_finisher));
+  }
+
+ private:
+  Objecter *m_objecter;
+  Finisher *m_finisher;
+  ceph::mutex *m_lock;
+};
+
+#endif