update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / librbd / cache / pwl / rwl / Request.h

diff --git a/ceph/src/librbd/cache/pwl/rwl/Request.h b/ceph/src/librbd/cache/pwl/rwl/Request.h
new file mode 100644 (file)
index 0000000..0a5c610
--- /dev/null
+++ b/ceph/src/librbd/cache/pwl/rwl/Request.h
@@ -0,0 +1,90 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_CACHE_RWL_REQUEST_H
+#define CEPH_LIBRBD_CACHE_RWL_REQUEST_H
+
+#include "librbd/cache/pwl/Request.h"
+
+namespace librbd {
+class BlockGuardCell;
+
+namespace cache {
+namespace pwl {
+namespace rwl {
+
+template <typename T>
+class C_WriteRequest : public pwl::C_WriteRequest<T> {
+public:
+  C_WriteRequest(
+      T &pwl, const utime_t arrived, io::Extents &&image_extents,
+      bufferlist&& cmp_bl, bufferlist&& bl, uint64_t *mismatch_offset,
+      const int fadvise_flags, ceph::mutex &lock,
+      PerfCounters *perfcounter, Context *user_req)
+    : pwl::C_WriteRequest<T>(
+        pwl, arrived, std::move(image_extents), std::move(cmp_bl),
+        std::move(bl), mismatch_offset, fadvise_flags,
+        lock, perfcounter, user_req) {}
+
+  C_WriteRequest(
+      T &pwl, const utime_t arrived, io::Extents &&image_extents,
+      bufferlist&& bl, const int fadvise_flags, ceph::mutex &lock,
+      PerfCounters *perfcounter, Context *user_req)
+    : pwl::C_WriteRequest<T>(
+        pwl, arrived, std::move(image_extents), std::move(bl),
+        fadvise_flags, lock, perfcounter, user_req) {}
+protected:
+  //Plain writes will allocate one buffer per request extent
+  void setup_buffer_resources(
+      uint64_t *bytes_cached, uint64_t *bytes_dirtied,
+      uint64_t *bytes_allocated, uint64_t *number_lanes,
+      uint64_t *number_log_entries,
+      uint64_t *number_unpublished_reserves) override;
+};
+
+template <typename T>
+class C_CompAndWriteRequest : public C_WriteRequest<T> {
+public:
+  C_CompAndWriteRequest(
+      T &pwl, const utime_t arrived, io::Extents &&image_extents,
+      bufferlist&& cmp_bl, bufferlist&& bl, uint64_t *mismatch_offset,
+      const int fadvise_flags, ceph::mutex &lock,
+      PerfCounters *perfcounter, Context *user_req)
+    : C_WriteRequest<T>(
+        pwl, arrived, std::move(image_extents), std::move(cmp_bl),
+        std::move(bl), mismatch_offset, fadvise_flags,
+        lock, perfcounter, user_req) {}
+
+  const char *get_name() const override {
+    return "C_CompAndWriteRequest";
+  }
+  template <typename U>
+  friend std::ostream &operator<<(std::ostream &os,
+                                  const C_CompAndWriteRequest<U> &req);
+};
+
+template <typename T>
+class C_WriteSameRequest : public pwl::C_WriteSameRequest<T> {
+public:
+  C_WriteSameRequest(
+      T &pwl, const utime_t arrived, io::Extents &&image_extents,
+      bufferlist&& bl, const int fadvise_flags, ceph::mutex &lock,
+      PerfCounters *perfcounter, Context *user_req)
+    : pwl::C_WriteSameRequest<T>(
+        pwl, arrived, std::move(image_extents), std::move(bl), fadvise_flags,
+        lock, perfcounter, user_req) {}
+
+  void setup_buffer_resources(
+      uint64_t *bytes_cached, uint64_t *bytes_dirtied,
+      uint64_t *bytes_allocated, uint64_t *number_lanes,
+      uint64_t *number_log_entries,
+      uint64_t *number_unpublished_reserves) override;
+
+};
+
+} // namespace rwl
+} // namespace pwl
+} // namespace cache
+} // namespace librbd
+
+#endif // CEPH_LIBRBD_CACHE_RWL_REQUEST_H