ceph/src/librados/RadosClient.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2004-2012 Sage Weil <sage@newdream.net>
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14 #ifndef CEPH_LIBRADOS_RADOSCLIENT_H
  15 #define CEPH_LIBRADOS_RADOSCLIENT_H
  16
  17 #include "common/Cond.h"
  18 #include "common/Mutex.h"
  19 #include "common/RWLock.h"
  20 #include "common/Timer.h"
  21 #include "include/rados/librados.h"
  22 #include "include/rados/librados.hpp"
  23 #include "mon/MonClient.h"
  24 #include "mgr/MgrClient.h"
  25 #include "msg/Dispatcher.h"
  26
  27 #include "IoCtxImpl.h"
  28
  29 struct AuthAuthorizer;
  30 class CephContext;
  31 struct Connection;
  32 struct md_config_t;
  33 class Message;
  34 class MLog;
  35 class Messenger;
  36 class AioCompletionImpl;
  37
  38 class librados::RadosClient : public Dispatcher
  39 {
  40   std::unique_ptr<CephContext,
  41                   std::function<void(CephContext*)> > cct_deleter;
  42
  43 public:
  44   using Dispatcher::cct;
  45   md_config_t *conf;
  46 private:
  47   enum {
  48     DISCONNECTED,
  49     CONNECTING,
  50     CONNECTED,
  51   } state;
  52
  53   MonClient monclient;
  54   MgrClient mgrclient;
  55   Messenger *messenger;
  56
  57   uint64_t instance_id;
  58
  59   bool _dispatch(Message *m);
  60   bool ms_dispatch(Message *m) override;
  61
  62   bool ms_get_authorizer(int dest_type, AuthAuthorizer **authorizer, bool force_new) override;
  63   void ms_handle_connect(Connection *con) override;
  64   bool ms_handle_reset(Connection *con) override;
  65   void ms_handle_remote_reset(Connection *con) override;
  66   bool ms_handle_refused(Connection *con) override;
  67
  68   Objecter *objecter;
  69
  70   Mutex lock;
  71   Cond cond;
  72   SafeTimer timer;
  73   int refcnt;
  74
  75   version_t log_last_version;
  76   rados_log_callback_t log_cb;
  77   rados_log_callback2_t log_cb2;
  78   void *log_cb_arg;
  79   string log_watch;
  80
  81   int wait_for_osdmap();
  82
  83 public:
  84   Finisher finisher;
  85
  86   explicit RadosClient(CephContext *cct_);
  87   ~RadosClient() override;
  88   int ping_monitor(string mon_id, string *result);
  89   int connect();
  90   void shutdown();
  91
  92   int watch_flush();
  93   int async_watch_flush(AioCompletionImpl *c);
  94
  95   uint64_t get_instance_id();
  96
  97   int wait_for_latest_osdmap();
  98
  99   int create_ioctx(const char *name, IoCtxImpl **io);
 100   int create_ioctx(int64_t, IoCtxImpl **io);
 101
 102   int get_fsid(std::string *s);
 103   int64_t lookup_pool(const char *name);
 104   bool pool_requires_alignment(int64_t pool_id);
 105   int pool_requires_alignment2(int64_t pool_id, bool *requires);
 106   uint64_t pool_required_alignment(int64_t pool_id);
 107   int pool_required_alignment2(int64_t pool_id, uint64_t *alignment);
 108   int pool_get_auid(uint64_t pool_id, unsigned long long *auid);
 109   int pool_get_name(uint64_t pool_id, std::string *auid);
 110
 111   int pool_list(std::list<std::pair<int64_t, string> >& ls);
 112   int get_pool_stats(std::list<string>& ls, map<string,::pool_stat_t>& result);
 113   int get_fs_stats(ceph_statfs& result);
 114   bool get_pool_is_selfmanaged_snaps_mode(const std::string& pool);
 115
 116   /*
 117   -1 was set as the default value and monitor will pickup the right crush rule with below order:
 118     a) osd pool default crush replicated ruleset
 119     b) the first ruleset in crush ruleset
 120     c) error out if no value find
 121   */
 122   int pool_create(string& name, unsigned long long auid=0, int16_t crush_rule=-1);
 123   int pool_create_async(string& name, PoolAsyncCompletionImpl *c, unsigned long long auid=0,
 124                         int16_t crush_rule=-1);
 125   int pool_get_base_tier(int64_t pool_id, int64_t* base_tier);
 126   int pool_delete(const char *name);
 127
 128   int pool_delete_async(const char *name, PoolAsyncCompletionImpl *c);
 129
 130   int blacklist_add(const string& client_address, uint32_t expire_seconds);
 131
 132   int mon_command(const vector<string>& cmd, const bufferlist &inbl,
 133                   bufferlist *outbl, string *outs);
 134   int mon_command(int rank,
 135                   const vector<string>& cmd, const bufferlist &inbl,
 136                   bufferlist *outbl, string *outs);
 137   int mon_command(string name,
 138                   const vector<string>& cmd, const bufferlist &inbl,
 139                   bufferlist *outbl, string *outs);
 140   int mgr_command(const vector<string>& cmd, const bufferlist &inbl,
 141                   bufferlist *outbl, string *outs);
 142   int osd_command(int osd, vector<string>& cmd, const bufferlist& inbl,
 143                   bufferlist *poutbl, string *prs);
 144   int pg_command(pg_t pgid, vector<string>& cmd, const bufferlist& inbl,
 145                  bufferlist *poutbl, string *prs);
 146
 147   void handle_log(MLog *m);
 148   int monitor_log(const string& level, rados_log_callback_t cb,
 149                   rados_log_callback2_t cb2, void *arg);
 150
 151   void get();
 152   bool put();
 153   void blacklist_self(bool set);
 154 };
 155
 156 #endif