remove ceph code

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

diff --git a/src/ceph/src/os/bluestore/BlockDevice.h b/src/ceph/src/os/bluestore/BlockDevice.h
deleted file mode 100644 (file)
index 5d511dd..0000000
--- a/src/ceph/src/os/bluestore/BlockDevice.h
+++ /dev/null
@@ -1,147 +0,0 @@
-// -*- 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 XSky <haomai@xsky.com>
- *
- * Author: Haomai Wang <haomaiwang@gmail.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_BLOCKDEVICE_H
-#define CEPH_OS_BLUESTORE_BLOCKDEVICE_H
-
-#include <atomic>
-#include <condition_variable>
-#include <mutex>
-#include <list>
-
-#include "acconfig.h"
-#include "aio.h"
-
-#define SPDK_PREFIX "spdk:"
-
-/// track in-flight io
-struct IOContext {
-private:
-  std::mutex lock;
-  std::condition_variable cond;
-
-public:
-  CephContext* cct;
-  void *priv;
-#ifdef HAVE_SPDK
-  void *nvme_task_first = nullptr;
-  void *nvme_task_last = nullptr;
-#endif
-
-
-  std::list<aio_t> pending_aios;    ///< not yet submitted
-  std::list<aio_t> running_aios;    ///< submitting or submitted
-  std::atomic_int num_pending = {0};
-  std::atomic_int num_running = {0};
-
-  explicit IOContext(CephContext* cct, void *p)
-    : cct(cct), priv(p)
-    {}
-
-  // no copying
-  IOContext(const IOContext& other) = delete;
-  IOContext &operator=(const IOContext& other) = delete;
-
-  bool has_pending_aios() {
-    return num_pending.load();
-  }
-
-  void aio_wait();
-
-  void try_aio_wake() {
-    if (num_running == 1) {
-
-      // we might have some pending IOs submitted after the check
-      // as there is no lock protection for aio_submit.
-      // Hence we might have false conditional trigger.
-      // aio_wait has to handle that hence do not care here.
-      std::lock_guard<std::mutex> l(lock);
-      cond.notify_all();
-      --num_running;
-      assert(num_running >= 0);
-    } else {
-      --num_running;
-    }
-  }
-};
-
-
-class BlockDevice {
-public:
-  CephContext* cct;
-private:
-  std::mutex ioc_reap_lock;
-  std::vector<IOContext*> ioc_reap_queue;
-  std::atomic_int ioc_reap_count = {0};
-
-protected:
-  bool rotational = true;
-
-public:
-  BlockDevice(CephContext* cct) : cct(cct) {}
-  virtual ~BlockDevice() = default;
-  typedef void (*aio_callback_t)(void *handle, void *aio);
-
-  static BlockDevice *create(
-    CephContext* cct, const std::string& path, aio_callback_t cb, void *cbpriv);
-  virtual bool supported_bdev_label() { return true; }
-  virtual bool is_rotational() { return rotational; }
-
-  virtual void aio_submit(IOContext *ioc) = 0;
-
-  virtual uint64_t get_size() const = 0;
-  virtual uint64_t get_block_size() const = 0;
-
-  virtual int collect_metadata(std::string prefix, std::map<std::string,std::string> *pm) const = 0;
-
-  virtual int read(
-    uint64_t off,
-    uint64_t len,
-    bufferlist *pbl,
-    IOContext *ioc,
-    bool buffered) = 0;
-  virtual int read_random(
-    uint64_t off,
-    uint64_t len,
-    char *buf,
-    bool buffered) = 0;
-  virtual int write(
-    uint64_t off,
-    bufferlist& bl,
-    bool buffered) = 0;
-
-  virtual int aio_read(
-    uint64_t off,
-    uint64_t len,
-    bufferlist *pbl,
-    IOContext *ioc) = 0;
-  virtual int aio_write(
-    uint64_t off,
-    bufferlist& bl,
-    IOContext *ioc,
-    bool buffered) = 0;
-  virtual int flush() = 0;
-
-  void queue_reap_ioc(IOContext *ioc);
-  void reap_ioc();
-
-  // for managing buffered readers/writers
-  virtual int invalidate_cache(uint64_t off, uint64_t len) = 0;
-  virtual int open(const std::string& path) = 0;
-  virtual void close() = 0;
-};
-
-#endif //CEPH_OS_BLUESTORE_BLOCKDEVICE_H