ceph/src/librbd/cache/pwl/Builder.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #ifndef CEPH_LIBRBD_CACHE_PWL_BUILDER_H
   5 #define CEPH_LIBRBD_CACHE_PWL_BUILDER_H
   6
   7 namespace librbd {
   8 namespace cache {
   9 namespace pwl {
  10
  11 template <typename T>
  12 class Builder {
  13 public:
  14   virtual ~Builder() {}
  15   virtual std::shared_ptr<WriteLogEntry> create_write_log_entry(
  16       uint64_t image_offset_bytes, uint64_t write_bytes) = 0;
  17   virtual std::shared_ptr<WriteLogEntry> create_write_log_entry(
  18       std::shared_ptr<SyncPointLogEntry> sync_point_entry,
  19       uint64_t image_offset_bytes, uint64_t write_bytes) = 0;
  20   virtual std::shared_ptr<WriteLogEntry> create_writesame_log_entry(
  21       uint64_t image_offset_bytes, uint64_t write_bytes,
  22       uint32_t data_length) = 0;
  23   virtual std::shared_ptr<WriteLogEntry> create_writesame_log_entry(
  24       std::shared_ptr<SyncPointLogEntry> sync_point_entry,
  25       uint64_t image_offset_bytes, uint64_t write_bytes,
  26       uint32_t data_length) = 0;
  27   virtual C_WriteRequest<T> *create_write_request(
  28       T &pwl, utime_t arrived, io::Extents &&image_extents,
  29       bufferlist&& bl, const int fadvise_flags, ceph::mutex &lock,
  30       PerfCounters *perfcounter, Context *user_req) = 0;
  31   virtual C_WriteSameRequest<T> *create_writesame_request(
  32       T &pwl, utime_t arrived, io::Extents &&image_extents,
  33       bufferlist&& bl, const int fadvise_flags, ceph::mutex &lock,
  34       PerfCounters *perfcounter, Context *user_req) = 0;
  35   virtual C_WriteRequest<T> *create_comp_and_write_request(
  36       T &pwl, utime_t arrived, io::Extents &&image_extents,
  37       bufferlist&& cmp_bl, bufferlist&& bl, uint64_t *mismatch_offset,
  38       const int fadvise_flags, ceph::mutex &lock,
  39       PerfCounters *perfcounter, Context *user_req) = 0;
  40   virtual std::shared_ptr<WriteLogOperation> create_write_log_operation(
  41       WriteLogOperationSet &set, uint64_t image_offset_bytes,
  42       uint64_t write_bytes, CephContext *cct,
  43       std::shared_ptr<WriteLogEntry> write_log_entry) = 0;
  44   virtual std::shared_ptr<WriteLogOperation> create_write_log_operation(
  45       WriteLogOperationSet &set, uint64_t image_offset_bytes,
  46       uint64_t write_bytes, uint32_t data_len, CephContext *cct,
  47       std::shared_ptr<WriteLogEntry> writesame_log_entry) = 0;
  48   virtual std::shared_ptr<pwl::DiscardLogOperation> create_discard_log_operation(
  49       std::shared_ptr<SyncPoint> sync_point, uint64_t image_offset_bytes,
  50       uint64_t write_bytes, uint32_t discard_granularity_bytes,
  51       utime_t dispatch_time, PerfCounters *perfcounter, CephContext *cct) = 0;
  52   virtual C_ReadRequest *create_read_request(CephContext *cct, utime_t arrived,
  53       PerfCounters *perfcounter, ceph::bufferlist *bl, Context *on_finish) = 0;
  54
  55 };
  56
  57 } // namespace pwl
  58 } // namespace cache
  59 } // namespace librbd
  60
  61 #endif // CEPH_LIBRBD_CACHE_PWL_BUILDER_H