00001
00002
00003
00004 #ifndef DMLITE_CPP_INODE_H
00005 #define DMLITE_CPP_INODE_H
00006
00007 #include <utime.h>
00008 #include <string>
00009 #include <vector>
00010 #include "base.h"
00011 #include "exceptions.h"
00012 #include "utils/extensible.h"
00013 #include "utils/security.h"
00014
00015 namespace dmlite {
00016
00017
00018 class StackInstance;
00019
00020
00021 struct IDirectory { virtual ~IDirectory() = 0; };
00022
00023
00024 struct ExtendedStat: public Extensible {
00025 enum FileStatus { kOnline = '-',
00026 kMigrated = 'm'
00027 };
00028
00029 ino_t parent;
00030 struct stat stat;
00031 FileStatus status;
00032 std::string name;
00033 std::string guid;
00034 std::string csumtype;
00035 std::string csumvalue;
00036 Acl acl;
00037
00038 bool operator == (const ExtendedStat&) const;
00039 bool operator != (const ExtendedStat&) const;
00040 bool operator < (const ExtendedStat&) const;
00041 bool operator > (const ExtendedStat&) const;
00042 };
00043
00044
00045 struct SymLink: public Extensible {
00046 ino_t inode;
00047 std::string link;
00048
00049 bool operator == (const SymLink&) const;
00050 bool operator != (const SymLink&) const;
00051 bool operator < (const SymLink&) const;
00052 bool operator > (const SymLink&) const;
00053 };
00054
00055
00056 struct Replica: public Extensible {
00057 enum ReplicaStatus { kAvailable = '-',
00058 kBeingPopulated = 'P',
00059 kToBeDeleted = 'D'
00060 };
00061 enum ReplicaType { kVolatile = 'V',
00062 kPermanent = 'P'
00063 };
00064
00065 int64_t replicaid;
00066 int64_t fileid;
00067
00068 int64_t nbaccesses;
00069 time_t atime;
00070 time_t ptime;
00071 time_t ltime;
00072
00073 ReplicaStatus status;
00074 ReplicaType type;
00075
00076 std::string server;
00077 std::string rfn;
00078
00079 bool operator == (const Replica&) const;
00080 bool operator != (const Replica&) const;
00081 bool operator < (const Replica&) const;
00082 bool operator > (const Replica&) const;
00083 };
00084
00085
00086
00087 class INode: public virtual BaseInterface {
00088 public:
00089
00090 virtual ~INode();
00091
00092
00093 virtual void begin(void) throw (DmException) = 0;
00094
00095
00096 virtual void commit(void) throw (DmException) = 0;
00097
00098
00099 virtual void rollback(void) throw (DmException) = 0;
00100
00101
00102
00103
00104 virtual ExtendedStat create(const ExtendedStat& f) throw (DmException) = 0;
00105
00106
00107
00108
00109
00110 virtual void symlink(ino_t inode, const std::string &link) throw (DmException) = 0;
00111
00112
00113
00114
00115
00116
00117 virtual void unlink(ino_t inode) throw (DmException) = 0;
00118
00119
00120
00121
00122 virtual void move(ino_t inode, ino_t dest) throw (DmException) = 0;
00123
00124
00125
00126
00127 virtual void rename(ino_t inode, const std::string& name) throw (DmException) = 0;
00128
00129
00130
00131
00132 virtual ExtendedStat extendedStat(ino_t inode) throw (DmException) = 0;
00133
00134
00135
00136
00137
00138 virtual ExtendedStat extendedStat(ino_t parent,
00139 const std::string& name) throw (DmException) = 0;
00140
00141
00142
00143 virtual ExtendedStat extendedStat(const std::string& guid) throw (DmException) = 0;
00144
00145
00146
00147
00148
00149 virtual SymLink readLink(ino_t inode) throw (DmException) = 0;
00150
00151
00152
00153
00154 virtual void addReplica(const Replica& replica) throw (DmException) = 0;
00155
00156
00157
00158 virtual void deleteReplica(const Replica& replica) throw (DmException) = 0;
00159
00160
00161
00162 virtual Replica getReplica(int64_t rid) throw (DmException) = 0;
00163
00164
00165
00166 virtual Replica getReplica(const std::string& rfn) throw (DmException) = 0;
00167
00168
00169
00170 virtual void updateReplica(const Replica& replica) throw (DmException) = 0;
00171
00172
00173
00174 virtual std::vector<Replica> getReplicas(ino_t inode) throw (DmException) = 0;
00175
00176
00177
00178
00179 virtual void utime(ino_t inode,
00180 const struct utimbuf* buf) throw (DmException) = 0;
00181
00182
00183
00184
00185
00186
00187
00188
00189 virtual void setMode(ino_t inode, uid_t uid, gid_t gid, mode_t mode,
00190 const Acl& acl) throw (DmException) = 0;
00191
00192
00193
00194
00195 virtual void setSize(ino_t inode, size_t size) throw (DmException) = 0;
00196
00197
00198
00199
00200
00201 virtual void setChecksum(ino_t inode, const std::string& csumtype,
00202 const std::string& csumvalue) throw (DmException) = 0;
00203
00204
00205
00206
00207 virtual std::string getComment(ino_t inode) throw (DmException) = 0;
00208
00209
00210
00211
00212 virtual void setComment(ino_t inode,
00213 const std::string& comment) throw (DmException) = 0;
00214
00215
00216
00217 virtual void deleteComment(ino_t inode) throw (DmException) = 0;
00218
00219
00220
00221
00222 virtual void setGuid(ino_t inode,
00223 const std::string& guid) throw (DmException) = 0;
00224
00225
00226
00227 virtual void updateExtendedAttributes(ino_t inode,
00228 const Extensible& attr) throw (DmException) = 0;
00229
00230
00231
00232
00233 virtual IDirectory* openDir(ino_t inode) throw (DmException) = 0;
00234
00235
00236
00237 virtual void closeDir(IDirectory* dir) throw (DmException) = 0;
00238
00239
00240
00241
00242 virtual ExtendedStat* readDirx(IDirectory* dir) throw (DmException) = 0;
00243
00244
00245
00246
00247 virtual struct dirent* readDir (IDirectory* dir) throw (DmException) = 0;
00248 };
00249
00250
00251 class INodeFactory: public virtual BaseFactory {
00252 public:
00253
00254 virtual ~INodeFactory();
00255
00256 protected:
00257
00258 friend class StackInstance;
00259
00260
00261 static INode* createINode(INodeFactory* factory,
00262 PluginManager* pm) throw (DmException);
00263
00264
00265 virtual INode* createINode(PluginManager* pm) throw (DmException) = 0;
00266 };
00267
00268 };
00269
00270 #endif // DMLITE_CPP_INODE_H