initial code repo

[stor4nfv.git] / src / ceph / src / os / bluestore / FreelistManager.h

diff --git a/src/ceph/src/os/bluestore/FreelistManager.h b/src/ceph/src/os/bluestore/FreelistManager.h
new file mode 100644 (file)
index 0000000..b4418b2
--- /dev/null
+++ b/src/ceph/src/os/bluestore/FreelistManager.h
@@ -0,0 +1,47 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_OS_BLUESTORE_FREELISTMANAGER_H
+#define CEPH_OS_BLUESTORE_FREELISTMANAGER_H
+
+#include <string>
+#include <map>
+#include <mutex>
+#include <ostream>
+#include "kv/KeyValueDB.h"
+
+class FreelistManager {
+public:
+  CephContext* cct;
+  FreelistManager(CephContext* cct) : cct(cct) {}
+  virtual ~FreelistManager() {}
+
+  static FreelistManager *create(
+    CephContext* cct,
+    string type,
+    KeyValueDB *db,
+    string prefix);
+
+  static void setup_merge_operators(KeyValueDB *db);
+
+  virtual int create(uint64_t size, uint64_t min_alloc_size,
+                    KeyValueDB::Transaction txn) = 0;
+
+  virtual int init(uint64_t dev_size) = 0;
+  virtual void shutdown() = 0;
+
+  virtual void dump() = 0;
+
+  virtual void enumerate_reset() = 0;
+  virtual bool enumerate_next(uint64_t *offset, uint64_t *length) = 0;
+
+  virtual void allocate(
+    uint64_t offset, uint64_t length,
+    KeyValueDB::Transaction txn) = 0;
+  virtual void release(
+    uint64_t offset, uint64_t length,
+    KeyValueDB::Transaction txn) = 0;
+};
+
+
+#endif