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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, 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
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