initial code repo

[stor4nfv.git] / src / ceph / src / client / ObjecterWriteback.h

diff --git a/src/ceph/src/client/ObjecterWriteback.h b/src/ceph/src/client/ObjecterWriteback.h
new file mode 100644 (file)
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+++ b/src/ceph/src/client/ObjecterWriteback.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_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, 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,
+                           vector<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 (vector<pair<uint64_t, bufferlist> >::iterator p = io_vec.begin();
+        p != io_vec.end();
+        ++p)
+      op.write(p->first, p->second, 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;
+  Mutex *m_lock;
+};
+
+#endif