--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2015 Intel <jianpeng.ma@intel.com>
+ *
+ * Author: Jianpeng Ma <jianpeng.ma@intel.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+#ifndef CEPH_OS_BLUESTORE_PMEMDEVICE_H
+#define CEPH_OS_BLUESTORE_PMEMDEVICE_H
+
+#include <atomic>
+
+#include "os/fs/FS.h"
+#include "include/interval_set.h"
+#include "aio.h"
+#include "BlockDevice.h"
+
+class PMEMDevice : public BlockDevice {
+ int fd;
+ char *addr; //the address of mmap
+ uint64_t size;
+ uint64_t block_size;
+ std::string path;
+
+ Mutex debug_lock;
+ interval_set<uint64_t> debug_inflight;
+
+ std::atomic_int injecting_crash;
+ int _lock();
+
+public:
+ PMEMDevice(CephContext *cct, aio_callback_t cb, void *cbpriv);
+
+
+ void aio_submit(IOContext *ioc) override;
+
+ uint64_t get_size() const override {
+ return size;
+ }
+ uint64_t get_block_size() const override {
+ return block_size;
+ }
+
+ int collect_metadata(std::string prefix, map<std::string,std::string> *pm) const override;
+
+ int read(uint64_t off, uint64_t len, bufferlist *pbl,
+ IOContext *ioc,
+ bool buffered) override;
+ int aio_read(uint64_t off, uint64_t len, bufferlist *pbl,
+ IOContext *ioc) override;
+
+ int read_random(uint64_t off, uint64_t len, char *buf, bool buffered) override;
+ int write(uint64_t off, bufferlist& bl, bool buffered) override;
+ int aio_write(uint64_t off, bufferlist& bl,
+ IOContext *ioc,
+ bool buffered) override;
+ int flush() override;
+
+ // for managing buffered readers/writers
+ int invalidate_cache(uint64_t off, uint64_t len) override;
+ int open(const std::string &path) override;
+ void close() override;
+};
+
+#endif