--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_CLIENT_METASESSION_H
+#define CEPH_CLIENT_METASESSION_H
+
+#include "include/types.h"
+#include "include/utime.h"
+#include "msg/Message.h"
+#include "include/xlist.h"
+#include "mds/mdstypes.h"
+
+struct Cap;
+struct Inode;
+struct CapSnap;
+struct MetaRequest;
+class MClientCapRelease;
+
+struct MetaSession {
+ mds_rank_t mds_num;
+ ConnectionRef con;
+ version_t seq;
+ uint64_t cap_gen;
+ utime_t cap_ttl, last_cap_renew_request;
+ uint64_t cap_renew_seq;
+ int num_caps;
+ entity_inst_t inst;
+
+ enum {
+ STATE_NEW,
+ STATE_OPENING,
+ STATE_OPEN,
+ STATE_CLOSING,
+ STATE_CLOSED,
+ STATE_STALE,
+ } state;
+
+ int mds_state;
+ bool readonly;
+
+ list<Context*> waiting_for_open;
+
+ xlist<Cap*> caps;
+ xlist<Inode*> flushing_caps;
+ xlist<MetaRequest*> requests;
+ xlist<MetaRequest*> unsafe_requests;
+ std::set<ceph_tid_t> flushing_caps_tids;
+ std::set<Inode*> early_flushing_caps;
+
+ MClientCapRelease *release;
+
+ MetaSession()
+ : mds_num(-1), con(NULL),
+ seq(0), cap_gen(0), cap_renew_seq(0), num_caps(0),
+ state(STATE_NEW), mds_state(0), readonly(false),
+ release(NULL)
+ {}
+ ~MetaSession();
+
+ const char *get_state_name() const;
+
+ void dump(Formatter *f) const;
+
+ void enqueue_cap_release(inodeno_t ino, uint64_t cap_id, ceph_seq_t iseq,
+ ceph_seq_t mseq, epoch_t osd_barrier);
+};
+
+#endif