+++ /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_MCLIENTCAPS_H
-#define CEPH_MCLIENTCAPS_H
-
-#include "msg/Message.h"
-#include "include/ceph_features.h"
-
-#define CLIENT_CAPS_SYNC (0x1)
-
-class MClientCaps : public Message {
- static const int HEAD_VERSION = 10;
- static const int COMPAT_VERSION = 1;
-
- public:
- struct ceph_mds_caps_head head;
-
- uint64_t size, max_size, truncate_size, change_attr;
- uint32_t truncate_seq;
- utime_t mtime, atime, ctime, btime;
- uint32_t time_warp_seq;
-
- struct ceph_mds_cap_peer peer;
-
- bufferlist snapbl;
- bufferlist xattrbl;
- bufferlist flockbl;
- version_t inline_version;
- bufferlist inline_data;
-
- // Receivers may not use their new caps until they have this OSD map
- epoch_t osd_epoch_barrier;
- ceph_tid_t oldest_flush_tid;
- uint32_t caller_uid;
- uint32_t caller_gid;
-
- /* advisory CLIENT_CAPS_* flags to send to mds */
- unsigned flags;
-
- int get_caps() { return head.caps; }
- int get_wanted() { return head.wanted; }
- int get_dirty() { return head.dirty; }
- ceph_seq_t get_seq() { return head.seq; }
- ceph_seq_t get_issue_seq() { return head.issue_seq; }
- ceph_seq_t get_mseq() { return head.migrate_seq; }
-
- inodeno_t get_ino() { return inodeno_t(head.ino); }
- inodeno_t get_realm() { return inodeno_t(head.realm); }
- uint64_t get_cap_id() { return head.cap_id; }
-
- uint64_t get_size() { return size; }
- uint64_t get_max_size() { return max_size; }
- __u32 get_truncate_seq() { return truncate_seq; }
- uint64_t get_truncate_size() { return truncate_size; }
- utime_t get_ctime() { return ctime; }
- utime_t get_btime() { return btime; }
- utime_t get_mtime() { return mtime; }
- utime_t get_atime() { return atime; }
- __u64 get_change_attr() { return change_attr; }
- __u32 get_time_warp_seq() { return time_warp_seq; }
-
- const file_layout_t& get_layout() {
- return layout;
- }
-
- void set_layout(const file_layout_t &l) {
- layout = l;
- }
-
- int get_migrate_seq() { return head.migrate_seq; }
- int get_op() { return head.op; }
-
- uint64_t get_client_tid() { return get_tid(); }
- void set_client_tid(uint64_t s) { set_tid(s); }
-
- snapid_t get_snap_follows() { return snapid_t(head.snap_follows); }
- void set_snap_follows(snapid_t s) { head.snap_follows = s; }
-
- void set_caps(int c) { head.caps = c; }
- void set_wanted(int w) { head.wanted = w; }
-
- void set_max_size(uint64_t ms) { max_size = ms; }
-
- void set_migrate_seq(unsigned m) { head.migrate_seq = m; }
- void set_op(int o) { head.op = o; }
-
- void set_size(loff_t s) { size = s; }
- void set_mtime(const utime_t &t) { mtime = t; }
- void set_ctime(const utime_t &t) { ctime = t; }
- void set_atime(const utime_t &t) { atime = t; }
-
- void set_cap_peer(uint64_t id, ceph_seq_t seq, ceph_seq_t mseq, int mds, int flags) {
- peer.cap_id = id;
- peer.seq = seq;
- peer.mseq = mseq;
- peer.mds = mds;
- peer.flags = flags;
- }
-
- void set_oldest_flush_tid(ceph_tid_t tid) { oldest_flush_tid = tid; }
- ceph_tid_t get_oldest_flush_tid() { return oldest_flush_tid; }
-
- void clear_dirty() { head.dirty = 0; }
-
- MClientCaps()
- : Message(CEPH_MSG_CLIENT_CAPS, HEAD_VERSION, COMPAT_VERSION),
- size(0),
- max_size(0),
- truncate_size(0),
- change_attr(0),
- truncate_seq(0),
- time_warp_seq(0),
- osd_epoch_barrier(0),
- oldest_flush_tid(0),
- caller_uid(0), caller_gid(0),
- flags(0) {
- inline_version = 0;
- }
- MClientCaps(int op,
- inodeno_t ino,
- inodeno_t realm,
- uint64_t id,
- long seq,
- int caps,
- int wanted,
- int dirty,
- int mseq,
- epoch_t oeb)
- : Message(CEPH_MSG_CLIENT_CAPS, HEAD_VERSION, COMPAT_VERSION),
- size(0),
- max_size(0),
- truncate_size(0),
- change_attr(0),
- truncate_seq(0),
- time_warp_seq(0),
- osd_epoch_barrier(oeb),
- oldest_flush_tid(0),
- caller_uid(0), caller_gid(0),
- flags(0) {
- memset(&head, 0, sizeof(head));
- head.op = op;
- head.ino = ino;
- head.realm = realm;
- head.cap_id = id;
- head.seq = seq;
- head.caps = caps;
- head.wanted = wanted;
- head.dirty = dirty;
- head.migrate_seq = mseq;
- memset(&peer, 0, sizeof(peer));
- inline_version = 0;
- }
- MClientCaps(int op,
- inodeno_t ino, inodeno_t realm,
- uint64_t id, int mseq, epoch_t oeb)
- : Message(CEPH_MSG_CLIENT_CAPS, HEAD_VERSION, COMPAT_VERSION),
- size(0),
- max_size(0),
- truncate_size(0),
- change_attr(0),
- truncate_seq(0),
- time_warp_seq(0),
- osd_epoch_barrier(oeb),
- oldest_flush_tid(0),
- caller_uid(0), caller_gid(0),
- flags(0) {
- memset(&head, 0, sizeof(head));
- head.op = op;
- head.ino = ino;
- head.realm = realm;
- head.cap_id = id;
- head.migrate_seq = mseq;
- memset(&peer, 0, sizeof(peer));
- inline_version = 0;
- }
-private:
- file_layout_t layout;
-
- ~MClientCaps() override {}
-
-public:
- const char *get_type_name() const override { return "Cfcap";}
- void print(ostream& out) const override {
- out << "client_caps(" << ceph_cap_op_name(head.op)
- << " ino " << inodeno_t(head.ino)
- << " " << head.cap_id
- << " seq " << head.seq;
- if (get_tid())
- out << " tid " << get_tid();
- out << " caps=" << ccap_string(head.caps)
- << " dirty=" << ccap_string(head.dirty)
- << " wanted=" << ccap_string(head.wanted);
- out << " follows " << snapid_t(head.snap_follows);
- if (head.migrate_seq)
- out << " mseq " << head.migrate_seq;
-
- out << " size " << size << "/" << max_size;
- if (truncate_seq)
- out << " ts " << truncate_seq << "/" << truncate_size;
- out << " mtime " << mtime;
- if (time_warp_seq)
- out << " tws " << time_warp_seq;
-
- if (head.xattr_version)
- out << " xattrs(v=" << head.xattr_version << " l=" << xattrbl.length() << ")";
-
- out << ")";
- }
-
- void decode_payload() override {
- bufferlist::iterator p = payload.begin();
- ::decode(head, p);
- ceph_mds_caps_body_legacy body;
- ::decode(body, p);
- if (head.op == CEPH_CAP_OP_EXPORT) {
- peer = body.peer;
- } else {
- size = body.size;
- max_size = body.max_size;
- truncate_size = body.truncate_size;
- truncate_seq = body.truncate_seq;
- mtime = utime_t(body.mtime);
- atime = utime_t(body.atime);
- ctime = utime_t(body.ctime);
- layout.from_legacy(body.layout);
- time_warp_seq = body.time_warp_seq;
- }
- ::decode_nohead(head.snap_trace_len, snapbl, p);
-
- assert(middle.length() == head.xattr_len);
- if (head.xattr_len)
- xattrbl = middle;
-
- // conditionally decode flock metadata
- if (header.version >= 2)
- ::decode(flockbl, p);
-
- if (header.version >= 3) {
- if (head.op == CEPH_CAP_OP_IMPORT)
- ::decode(peer, p);
- }
-
- if (header.version >= 4) {
- ::decode(inline_version, p);
- ::decode(inline_data, p);
- } else {
- inline_version = CEPH_INLINE_NONE;
- }
-
- if (header.version >= 5) {
- ::decode(osd_epoch_barrier, p);
- }
- if (header.version >= 6) {
- ::decode(oldest_flush_tid, p);
- }
- if (header.version >= 7) {
- ::decode(caller_uid, p);
- ::decode(caller_gid, p);
- }
- if (header.version >= 8) {
- ::decode(layout.pool_ns, p);
- }
- if (header.version >= 9) {
- ::decode(btime, p);
- ::decode(change_attr, p);
- }
- if (header.version >= 10) {
- ::decode(flags, p);
- }
- }
- void encode_payload(uint64_t features) override {
- header.version = HEAD_VERSION;
- head.snap_trace_len = snapbl.length();
- head.xattr_len = xattrbl.length();
-
- ::encode(head, payload);
- ceph_mds_caps_body_legacy body;
- if (head.op == CEPH_CAP_OP_EXPORT) {
- memset(&body, 0, sizeof(body));
- body.peer = peer;
- } else {
- body.size = size;
- body.max_size = max_size;
- body.truncate_size = truncate_size;
- body.truncate_seq = truncate_seq;
- mtime.encode_timeval(&body.mtime);
- atime.encode_timeval(&body.atime);
- ctime.encode_timeval(&body.ctime);
- layout.to_legacy(&body.layout);
- body.time_warp_seq = time_warp_seq;
- }
- ::encode(body, payload);
- ::encode_nohead(snapbl, payload);
-
- middle = xattrbl;
-
- // conditionally include flock metadata
- if (features & CEPH_FEATURE_FLOCK) {
- ::encode(flockbl, payload);
- } else {
- header.version = 1;
- return;
- }
-
- if (features & CEPH_FEATURE_EXPORT_PEER) {
- if (head.op == CEPH_CAP_OP_IMPORT)
- ::encode(peer, payload);
- } else {
- header.version = 2;
- return;
- }
-
- if (features & CEPH_FEATURE_MDS_INLINE_DATA) {
- ::encode(inline_version, payload);
- ::encode(inline_data, payload);
- } else {
- ::encode(inline_version, payload);
- ::encode(bufferlist(), payload);
- }
-
- ::encode(osd_epoch_barrier, payload);
- ::encode(oldest_flush_tid, payload);
- ::encode(caller_uid, payload);
- ::encode(caller_gid, payload);
-
- ::encode(layout.pool_ns, payload);
- ::encode(btime, payload);
- ::encode(change_attr, payload);
- ::encode(flags, payload);
- }
-};
-
-#endif
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