ceph/src/test/osdc/MemWriteback.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 #ifndef CEPH_TEST_OSDC_MEMWRITEBACK_H
   4 #define CEPH_TEST_OSDC_MEMWRITEBACK_H
   5
   6 #include "include/Context.h"
   7 #include "include/types.h"
   8 #include "osd/osd_types.h"
   9 #include "osdc/WritebackHandler.h"
  10
  11 #include <atomic>
  12
  13 class Finisher;
  14
  15 class MemWriteback : public WritebackHandler {
  16 public:
  17   MemWriteback(CephContext *cct, ceph::mutex *lock, uint64_t delay_ns);
  18   ~MemWriteback() override;
  19
  20   void read(const object_t& oid, uint64_t object_no,
  21                     const object_locator_t& oloc, uint64_t off, uint64_t len,
  22                     snapid_t snapid, bufferlist *pbl, uint64_t trunc_size,
  23                     __u32 trunc_seq, int op_flags,
  24                     const ZTracer::Trace &parent_trace,
  25                     Context *onfinish) override;
  26
  27   ceph_tid_t write(const object_t& oid, const object_locator_t& oloc,
  28                            uint64_t off, uint64_t len,
  29                            const SnapContext& snapc, const bufferlist &bl,
  30                            ceph::real_time mtime, uint64_t trunc_size,
  31                            __u32 trunc_seq, ceph_tid_t journal_tid,
  32                            const ZTracer::Trace &parent_trace,
  33                            Context *oncommit) override;
  34
  35   using WritebackHandler::write;
  36
  37   bool may_copy_on_write(const object_t&, uint64_t, uint64_t,
  38                                  snapid_t) override;
  39   void write_object_data(const object_t& oid, uint64_t off, uint64_t len,
  40                          const bufferlist& data_bl);
  41   int read_object_data(const object_t& oid, uint64_t off, uint64_t len,
  42                        bufferlist *data_bl);
  43 private:
  44   std::map<object_t, bufferlist> object_data;
  45   CephContext *m_cct;
  46   ceph::mutex *m_lock;
  47   uint64_t m_delay_ns;
  48   std::atomic<unsigned> m_tid = { 0 };
  49   Finisher *m_finisher;
  50 };
  51
  52 #endif