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| -rw-r--r-- | src/messages/MMDSSlaveRequest.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/src/messages/MMDSSlaveRequest.h b/src/messages/MMDSSlaveRequest.h new file mode 100644 index 00000000..f9be3af8 --- /dev/null +++ b/src/messages/MMDSSlaveRequest.h @@ -0,0 +1,220 @@ +// -*- 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 MessageInstance<MMDSSlaveRequest> { +public: + friend factory; + + static constexpr int OP_XLOCK = 1; + static constexpr int OP_XLOCKACK = -1; + static constexpr int OP_UNXLOCK = 2; + static constexpr int OP_AUTHPIN = 3; + static constexpr int OP_AUTHPINACK = -3; + + static constexpr int OP_LINKPREP = 4; + static constexpr int OP_UNLINKPREP = 5; + static constexpr int OP_LINKPREPACK = -4; + + static constexpr int OP_RENAMEPREP = 7; + static constexpr int OP_RENAMEPREPACK = -7; + + static constexpr int OP_WRLOCK = 8; + static constexpr int OP_WRLOCKACK = -8; + static constexpr int OP_UNWRLOCK = 9; + + static constexpr int OP_RMDIRPREP = 10; + static constexpr int OP_RMDIRPREPACK = -10; + + static constexpr int OP_DROPLOCKS = 11; + + static constexpr int OP_RENAMENOTIFY = 12; + static constexpr int OP_RENAMENOTIFYACK = -12; + + static constexpr int OP_FINISH = 17; + static constexpr int OP_COMMITTED = -18; + + static constexpr int OP_ABORT = 20; // used for recovery only + //static constexpr int OP_COMMIT = 21; // used for recovery only + + + static const 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; + mutable __u16 flags; /* XXX HACK for mark_interrupted */ + + static constexpr unsigned FLAG_NONBLOCK = 1<<0; + static constexpr unsigned FLAG_WOULDBLOCK = 1<<1; + static constexpr unsigned FLAG_NOTJOURNALED = 1<<2; + static constexpr unsigned FLAG_EROFS = 1<<3; + static constexpr unsigned FLAG_ABORT = 1<<4; + static constexpr 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; + mds_rank_t srcdn_auth; + utime_t op_stamp; + + mutable bufferlist straybl; // stray dir + dentry + bufferlist srci_snapbl; + bufferlist desti_snapbl; + +public: + metareqid_t get_reqid() const { return reqid; } + __u32 get_attempt() const { return attempt; } + int get_op() const { return op; } + bool is_reply() const { return op < 0; } + + int get_lock_type() const { return lock_type; } + const MDSCacheObjectInfo &get_object_info() const { return object_info; } + MDSCacheObjectInfo &get_object_info() { return object_info; } + const MDSCacheObjectInfo &get_authpin_freeze() const { return object_info; } + MDSCacheObjectInfo &get_authpin_freeze() { return object_info; } + + const vector<MDSCacheObjectInfo>& get_authpins() const { return authpins; } + vector<MDSCacheObjectInfo>& get_authpins() { return authpins; } + void mark_nonblock() { flags |= FLAG_NONBLOCK; } + bool is_nonblock() const { return (flags & FLAG_NONBLOCK); } + void mark_error_wouldblock() { flags |= FLAG_WOULDBLOCK; } + bool is_error_wouldblock() const { return (flags & FLAG_WOULDBLOCK); } + void mark_not_journaled() { flags |= FLAG_NOTJOURNALED; } + bool is_not_journaled() const { return (flags & FLAG_NOTJOURNALED); } + void mark_error_rofs() { flags |= FLAG_EROFS; } + bool is_error_rofs() const { return (flags & FLAG_EROFS); } + bool is_abort() const { return (flags & FLAG_ABORT); } + void mark_abort() { flags |= FLAG_ABORT; } + bool is_interrupted() const { return (flags & FLAG_INTERRUPTED); } + void mark_interrupted() const { flags |= FLAG_INTERRUPTED; } + + void set_lock_type(int t) { lock_type = t; } + const bufferlist& get_lock_data() const { return inode_export; } + bufferlist& get_lock_data() { return inode_export; } + +protected: + MMDSSlaveRequest() : MessageInstance(MSG_MDS_SLAVE_REQUEST) { } + MMDSSlaveRequest(metareqid_t ri, __u32 att, int o) : + MessageInstance(MSG_MDS_SLAVE_REQUEST), + reqid(ri), attempt(att), op(o), flags(0), lock_type(0), + inode_export_v(0), srcdn_auth(MDS_RANK_NONE) { } + ~MMDSSlaveRequest() override {} + +public: + void encode_payload(uint64_t features) override { + using ceph::encode; + 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(straybl, payload); + encode(srci_snapbl, payload); + encode(desti_snapbl, payload); + } + void decode_payload() override { + auto p = payload.cbegin(); + 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(straybl, p); + decode(srci_snapbl, p); + decode(desti_snapbl, p); + } + + std::string_view get_type_name() const override { return "slave_request"; } + void print(ostream& out) const override { + out << "slave_request(" << reqid + << "." << attempt + << " " << get_opname(op) + << ")"; + } + +}; + +#endif |