initial code repo

[stor4nfv.git] / src / ceph / src / client / MetaSession.h

diff --git a/src/ceph/src/client/MetaSession.h b/src/ceph/src/client/MetaSession.h
new file mode 100644 (file)
index 0000000..af84615
--- /dev/null
+++ b/src/ceph/src/client/MetaSession.h
@@ -0,0 +1,68 @@
+// -*- 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