initial code repo

[stor4nfv.git] / src / ceph / src / messages / MLock.h

diff --git a/src/ceph/src/messages/MLock.h b/src/ceph/src/messages/MLock.h
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+++ b/src/ceph/src/messages/MLock.h
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+// -*- 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_MLOCK_H
+#define CEPH_MLOCK_H
+
+#include "msg/Message.h"
+#include "mds/locks.h"
+
+class MLock : public Message {
+  int32_t     action;  // action type
+  int32_t     asker;  // who is initiating this request
+  metareqid_t reqid;  // for remote lock requests
+  
+  __u16      lock_type;  // lock object type
+  MDSCacheObjectInfo object_info;  
+  
+  bufferlist lockdata;  // and possibly some data
+  
+public:
+  bufferlist& get_data() { return lockdata; }
+  int get_asker() { return asker; }
+  int get_action() { return action; }
+  metareqid_t get_reqid() { return reqid; }
+  
+  int get_lock_type() { return lock_type; }
+  MDSCacheObjectInfo &get_object_info() { return object_info; }
+  
+  MLock() : Message(MSG_MDS_LOCK) {}
+  MLock(int ac, int as) :
+    Message(MSG_MDS_LOCK),
+    action(ac), asker(as),
+    lock_type(0) { }
+  MLock(SimpleLock *lock, int ac, int as) :
+    Message(MSG_MDS_LOCK),
+    action(ac), asker(as),
+    lock_type(lock->get_type()) {
+    lock->get_parent()->set_object_info(object_info);
+  }
+  MLock(SimpleLock *lock, int ac, int as, bufferlist& bl) :
+    Message(MSG_MDS_LOCK),
+    action(ac), asker(as), lock_type(lock->get_type()) {
+    lock->get_parent()->set_object_info(object_info);
+    lockdata.claim(bl);
+  }
+private:
+  ~MLock() override {}
+  
+public:
+  const char *get_type_name() const override { return "ILock"; }
+  void print(ostream& out) const override {
+    out << "lock(a=" << get_lock_action_name(action)
+       << " " << get_lock_type_name(lock_type)
+       << " " << object_info
+       << ")";
+  }
+  
+  void set_reqid(metareqid_t ri) { reqid = ri; }
+  void set_data(const bufferlist& lockdata) {
+    this->lockdata = lockdata;
+  }
+  
+  void decode_payload() override {
+    bufferlist::iterator p = payload.begin();
+    ::decode(asker, p);
+    ::decode(action, p);
+    ::decode(reqid, p);
+    ::decode(lock_type, p);
+    ::decode(object_info, p);
+    ::decode(lockdata, p);
+  }
+  void encode_payload(uint64_t features) override {
+    ::encode(asker, payload);
+    ::encode(action, payload);
+    ::encode(reqid, payload);
+    ::encode(lock_type, payload);
+    ::encode(object_info, payload);
+    ::encode(lockdata, payload);
+  }
+
+};
+
+#endif