remove ceph code

[stor4nfv.git] / src / ceph / src / mds / MDSContext.h

diff --git a/src/ceph/src/mds/MDSContext.h b/src/ceph/src/mds/MDSContext.h
deleted file mode 100644 (file)
index 11bde1b..0000000
--- a/src/ceph/src/mds/MDSContext.h
+++ /dev/null
@@ -1,193 +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) 2012 Red Hat
- *
- * 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 MDS_CONTEXT_H
-#define MDS_CONTEXT_H
-
-#include "include/Context.h"
-
-class MDSRank;
-
-
-/**
- * Completion which has access to a reference to the global MDS instance.
- *
- * This class exists so that Context subclasses can provide the MDS pointer
- * from a pointer they already had, e.g. MDCache or Locker, rather than
- * necessarily having to carry around an extra MDS* pointer. 
- */
-class MDSContext : public Context
-{
-protected:
-  virtual MDSRank *get_mds() = 0;
-};
-
-
-/**
- * A context which must be called with the big MDS lock held.  Subclass
- * this with a get_mds implementation.
- */
-class MDSInternalContextBase : public MDSContext
-{
-public:
-    void complete(int r) override;
-};
-
-/**
- * General purpose, lets you pass in an MDS pointer.
- */
-class MDSInternalContext : public MDSInternalContextBase
-{
-protected:
-  MDSRank *mds;
-  MDSRank* get_mds() override;
-
-public:
-  explicit MDSInternalContext(MDSRank *mds_) : mds(mds_) {
-    assert(mds != NULL);
-  }
-};
-
-/**
- * Wrap a regular Context up as an Internal context. Useful
- * if you're trying to work with one of our more generic frameworks.
- */
-class MDSInternalContextWrapper : public MDSInternalContextBase
-{
-protected:
-  MDSRank *mds;
-  Context *fin;
-  MDSRank *get_mds() override;
-public:
-  MDSInternalContextWrapper(MDSRank *m, Context *c) : mds(m), fin(c) {}
-  void finish(int r) override;
-};
-
-class MDSIOContextBase : public MDSContext
-{
-public:
-  void complete(int r) override;
-};
-
-/**
- * Completion for an log operation, takes big MDSRank lock
- * before executing finish function. Update log's safe pos
- * after finish functuon return.
- */
-class MDSLogContextBase : public MDSIOContextBase
-{
-protected:
-  uint64_t write_pos;
-public:
-  MDSLogContextBase() : write_pos(0) {}
-  void complete(int r) final;
-  void set_write_pos(uint64_t wp) { write_pos = wp; }
-  virtual void pre_finish(int r) {}
-};
-
-/**
- * Completion for an I/O operation, takes big MDSRank lock
- * before executing finish function.
- */
-class MDSIOContext : public MDSIOContextBase
-{
-protected:
-  MDSRank *mds;
-  MDSRank* get_mds() override;
-
-public:
-  explicit MDSIOContext(MDSRank *mds_) : mds(mds_) {
-    assert(mds != NULL);
-  }
-};
-
-/**
- * Wrap a regular Context up as an IO Context. Useful
- * if you're trying to work with one of our more generic frameworks.
- */
-class MDSIOContextWrapper : public MDSIOContextBase
-{
-protected:
-  MDSRank *mds;
-  Context *fin;
-  MDSRank *get_mds() override;
-public:
-  MDSIOContextWrapper(MDSRank *m, Context *c) : mds(m), fin(c) {}
-  void finish(int r) override;
-};
-
-/**
- * No-op for callers expecting MDSInternalContextBase
- */
-class C_MDSInternalNoop final : public MDSInternalContextBase
-{
-  MDSRank* get_mds() override {ceph_abort();}
-public:
-  void finish(int r) override {}
-  void complete(int r) override { delete this; }
-};
-
-
-/**
- * This class is used where you have an MDSInternalContextBase but
- * you sometimes want to call it back from an I/O completion.
- */
-class C_IO_Wrapper : public MDSIOContext
-{
-protected:
-  bool async;
-  MDSInternalContextBase *wrapped;
-  void finish(int r) override {
-    wrapped->complete(r);
-    wrapped = nullptr;
-  }
-public:
-  C_IO_Wrapper(MDSRank *mds_, MDSInternalContextBase *wrapped_) :
-    MDSIOContext(mds_), async(true), wrapped(wrapped_) {
-    assert(wrapped != NULL);
-  }
-
-  ~C_IO_Wrapper() override {
-    if (wrapped != nullptr) {
-      delete wrapped;
-      wrapped = nullptr;
-    }
-  }
-  void complete(int r) final;
-};
-
-
-/**
- * Gather needs a default-constructable class
- */
-class MDSInternalContextGather : public MDSInternalContextBase
-{
-protected:
-  MDSRank *get_mds() override;
-};
-
-
-class MDSGather : public C_GatherBase<MDSInternalContextBase, MDSInternalContextGather>
-{
-public:
-  MDSGather(CephContext *cct, MDSInternalContextBase *onfinish) : C_GatherBase<MDSInternalContextBase, MDSInternalContextGather>(cct, onfinish) {}
-protected:
-  MDSRank *get_mds() override {return NULL;}
-};
-
-
-typedef C_GatherBuilderBase<MDSInternalContextBase, MDSGather> MDSGatherBuilder;
-
-#endif  // MDS_CONTEXT_H