--- /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) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * 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_MMDSSLAVEREQUEST_H
+#define CEPH_MMDSSLAVEREQUEST_H
+
+#include "msg/Message.h"
+#include "mds/mdstypes.h"
+
+class MMDSSlaveRequest : public Message {
+ public:
+ static const int OP_XLOCK = 1;
+ static const int OP_XLOCKACK = -1;
+ static const int OP_UNXLOCK = 2;
+ static const int OP_AUTHPIN = 3;
+ static const int OP_AUTHPINACK = -3;
+
+ static const int OP_LINKPREP = 4;
+ static const int OP_UNLINKPREP = 5;
+ static const int OP_LINKPREPACK = -4;
+
+ static const int OP_RENAMEPREP = 7;
+ static const int OP_RENAMEPREPACK = -7;
+
+ static const int OP_WRLOCK = 8;
+ static const int OP_WRLOCKACK = -8;
+ static const int OP_UNWRLOCK = 9;
+
+ static const int OP_RMDIRPREP = 10;
+ static const int OP_RMDIRPREPACK = -10;
+
+ static const int OP_DROPLOCKS = 11;
+
+ static const int OP_RENAMENOTIFY = 12;
+ static const int OP_RENAMENOTIFYACK = -12;
+
+ static const int OP_FINISH = 17;
+ static const int OP_COMMITTED = -18;
+
+ static const int OP_ABORT = 20; // used for recovery only
+ //static const int OP_COMMIT = 21; // used for recovery only
+
+
+ const static char *get_opname(int o) {
+ switch (o) {
+ case OP_XLOCK: return "xlock";
+ case OP_XLOCKACK: return "xlock_ack";
+ case OP_UNXLOCK: return "unxlock";
+ case OP_AUTHPIN: return "authpin";
+ case OP_AUTHPINACK: return "authpin_ack";
+
+ case OP_LINKPREP: return "link_prep";
+ case OP_LINKPREPACK: return "link_prep_ack";
+ case OP_UNLINKPREP: return "unlink_prep";
+
+ case OP_RENAMEPREP: return "rename_prep";
+ case OP_RENAMEPREPACK: return "rename_prep_ack";
+
+ case OP_FINISH: return "finish"; // commit
+ case OP_COMMITTED: return "committed";
+
+ case OP_WRLOCK: return "wrlock";
+ case OP_WRLOCKACK: return "wrlock_ack";
+ case OP_UNWRLOCK: return "unwrlock";
+
+ case OP_RMDIRPREP: return "rmdir_prep";
+ case OP_RMDIRPREPACK: return "rmdir_prep_ack";
+
+ case OP_DROPLOCKS: return "drop_locks";
+
+ case OP_RENAMENOTIFY: return "rename_notify";
+ case OP_RENAMENOTIFYACK: return "rename_notify_ack";
+
+ case OP_ABORT: return "abort";
+ //case OP_COMMIT: return "commit";
+
+ default: ceph_abort(); return 0;
+ }
+ }
+
+ private:
+ metareqid_t reqid;
+ __u32 attempt;
+ __s16 op;
+ __u16 flags;
+
+ static const unsigned FLAG_NONBLOCK = 1<<0;
+ static const unsigned FLAG_WOULDBLOCK = 1<<1;
+ static const unsigned FLAG_NOTJOURNALED = 1<<2;
+ static const unsigned FLAG_EROFS = 1<<3;
+ static const unsigned FLAG_ABORT = 1<<4;
+ static const unsigned FLAG_INTERRUPTED = 1<<5;
+
+ // for locking
+ __u16 lock_type; // lock object type
+ MDSCacheObjectInfo object_info;
+
+ // for authpins
+ vector<MDSCacheObjectInfo> authpins;
+
+ public:
+ // for rename prep
+ filepath srcdnpath;
+ filepath destdnpath;
+ set<mds_rank_t> witnesses;
+ bufferlist inode_export;
+ version_t inode_export_v;
+ bufferlist srci_replica;
+ mds_rank_t srcdn_auth;
+ utime_t op_stamp;
+
+ bufferlist stray; // stray dir + dentry
+
+public:
+ metareqid_t get_reqid() { return reqid; }
+ __u32 get_attempt() const { return attempt; }
+ int get_op() { return op; }
+ bool is_reply() { return op < 0; }
+
+ int get_lock_type() { return lock_type; }
+ MDSCacheObjectInfo &get_object_info() { return object_info; }
+ MDSCacheObjectInfo &get_authpin_freeze() { return object_info; }
+
+ vector<MDSCacheObjectInfo>& get_authpins() { return authpins; }
+ void mark_nonblock() { flags |= FLAG_NONBLOCK; }
+ bool is_nonblock() { return (flags & FLAG_NONBLOCK); }
+ void mark_error_wouldblock() { flags |= FLAG_WOULDBLOCK; }
+ bool is_error_wouldblock() { return (flags & FLAG_WOULDBLOCK); }
+ void mark_not_journaled() { flags |= FLAG_NOTJOURNALED; }
+ bool is_not_journaled() { return (flags & FLAG_NOTJOURNALED); }
+ void mark_error_rofs() { flags |= FLAG_EROFS; }
+ bool is_error_rofs() { return (flags & FLAG_EROFS); }
+ bool is_abort() { return (flags & FLAG_ABORT); }
+ void mark_abort() { flags |= FLAG_ABORT; }
+ bool is_interrupted() { return (flags & FLAG_INTERRUPTED); }
+ void mark_interrupted() { flags |= FLAG_INTERRUPTED; }
+
+ void set_lock_type(int t) { lock_type = t; }
+
+
+ // ----
+ MMDSSlaveRequest() : Message(MSG_MDS_SLAVE_REQUEST) { }
+ MMDSSlaveRequest(metareqid_t ri, __u32 att, int o) :
+ Message(MSG_MDS_SLAVE_REQUEST),
+ reqid(ri), attempt(att), op(o), flags(0), lock_type(0),
+ inode_export_v(0), srcdn_auth(MDS_RANK_NONE) { }
+private:
+ ~MMDSSlaveRequest() override {}
+
+public:
+ void encode_payload(uint64_t features) override {
+ ::encode(reqid, payload);
+ ::encode(attempt, payload);
+ ::encode(op, payload);
+ ::encode(flags, payload);
+ ::encode(lock_type, payload);
+ ::encode(object_info, payload);
+ ::encode(authpins, payload);
+ ::encode(srcdnpath, payload);
+ ::encode(destdnpath, payload);
+ ::encode(witnesses, payload);
+ ::encode(op_stamp, payload);
+ ::encode(inode_export, payload);
+ ::encode(inode_export_v, payload);
+ ::encode(srcdn_auth, payload);
+ ::encode(srci_replica, payload);
+ ::encode(stray, payload);
+ }
+ void decode_payload() override {
+ bufferlist::iterator p = payload.begin();
+ ::decode(reqid, p);
+ ::decode(attempt, p);
+ ::decode(op, p);
+ ::decode(flags, p);
+ ::decode(lock_type, p);
+ ::decode(object_info, p);
+ ::decode(authpins, p);
+ ::decode(srcdnpath, p);
+ ::decode(destdnpath, p);
+ ::decode(witnesses, p);
+ ::decode(op_stamp, p);
+ ::decode(inode_export, p);
+ ::decode(inode_export_v, p);
+ ::decode(srcdn_auth, p);
+ ::decode(srci_replica, p);
+ ::decode(stray, p);
+ }
+
+ const char *get_type_name() const override { return "slave_request"; }
+ void print(ostream& out) const override {
+ out << "slave_request(" << reqid
+ << "." << attempt
+ << " " << get_opname(op)
+ << ")";
+ }
+
+};
+
+#endif
Code Review / stor4nfv.git / blobdiff