initial code repo

[stor4nfv.git] / src / ceph / src / mon / MonCommand.h

diff --git a/src/ceph/src/mon/MonCommand.h b/src/ceph/src/mon/MonCommand.h
new file mode 100644 (file)
index 0000000..ce2429f
--- /dev/null
+++ b/src/ceph/src/mon/MonCommand.h
@@ -0,0 +1,160 @@
+// -*- 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) 2017 John Spray <john.spray@redhat.com>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <string>
+#include "include/encoding.h"
+
+struct MonCommand {
+  std::string cmdstring;
+  std::string helpstring;
+  std::string module;
+  std::string req_perms;
+  std::string availability;
+  uint64_t flags;
+
+  // MonCommand flags
+  static const uint64_t FLAG_NONE       = 0;
+  static const uint64_t FLAG_NOFORWARD  = 1 << 0;
+  static const uint64_t FLAG_OBSOLETE   = 1 << 1;
+  static const uint64_t FLAG_DEPRECATED = 1 << 2;
+  static const uint64_t FLAG_MGR        = 1 << 3;
+
+  bool has_flag(uint64_t flag) const { return (flags & flag) != 0; }
+  void set_flag(uint64_t flag) { flags |= flag; }
+  void unset_flag(uint64_t flag) { flags &= ~flag; }
+
+  void encode(bufferlist &bl) const {
+    ENCODE_START(1, 1, bl);
+    encode_bare(bl);
+    ::encode(flags, bl);
+    ENCODE_FINISH(bl);
+  }
+
+  void decode(bufferlist::iterator &bl) {
+    DECODE_START(1, bl);
+    decode_bare(bl);
+    ::decode(flags, bl);
+    DECODE_FINISH(bl);
+  }
+
+  /**
+   * Unversioned encoding for use within encode_array.
+   */
+  void encode_bare(bufferlist &bl) const {
+    ::encode(cmdstring, bl);
+    ::encode(helpstring, bl);
+    ::encode(module, bl);
+    ::encode(req_perms, bl);
+    ::encode(availability, bl);
+  }
+  void decode_bare(bufferlist::iterator &bl) {
+    ::decode(cmdstring, bl);
+    ::decode(helpstring, bl);
+    ::decode(module, bl);
+    ::decode(req_perms, bl);
+    ::decode(availability, bl);
+  }
+  bool is_compat(const MonCommand* o) const {
+    return cmdstring == o->cmdstring &&
+       module == o->module && req_perms == o->req_perms &&
+       availability == o->availability;
+  }
+
+  bool is_noforward() const {
+    return has_flag(MonCommand::FLAG_NOFORWARD);
+  }
+
+  bool is_obsolete() const {
+    return has_flag(MonCommand::FLAG_OBSOLETE);
+  }
+
+  bool is_deprecated() const {
+    return has_flag(MonCommand::FLAG_DEPRECATED);
+  }
+
+  bool is_mgr() const {
+    return has_flag(MonCommand::FLAG_MGR);
+  }
+
+  static void encode_array(const MonCommand *cmds, int size, bufferlist &bl) {
+    ENCODE_START(2, 1, bl);
+    uint16_t s = size;
+    ::encode(s, bl);
+    for (int i = 0; i < size; ++i) {
+      cmds[i].encode_bare(bl);
+    }
+    for (int i = 0; i < size; i++) {
+      ::encode(cmds[i].flags, bl);
+    }
+    ENCODE_FINISH(bl);
+  }
+  static void decode_array(MonCommand **cmds, int *size,
+                           bufferlist::iterator &bl) {
+    DECODE_START(2, bl);
+    uint16_t s = 0;
+    ::decode(s, bl);
+    *size = s;
+    *cmds = new MonCommand[*size];
+    for (int i = 0; i < *size; ++i) {
+      (*cmds)[i].decode_bare(bl);
+    }
+    if (struct_v >= 2) {
+      for (int i = 0; i < *size; i++)
+        ::decode((*cmds)[i].flags, bl);
+    } else {
+      for (int i = 0; i < *size; i++)
+        (*cmds)[i].flags = 0;
+    }
+    DECODE_FINISH(bl);
+  }
+
+  // this uses a u16 for the count, so we need a special encoder/decoder.
+  static void encode_vector(const std::vector<MonCommand>& cmds,
+                           bufferlist &bl) {
+    ENCODE_START(2, 1, bl);
+    uint16_t s = cmds.size();
+    ::encode(s, bl);
+    for (unsigned i = 0; i < s; ++i) {
+      cmds[i].encode_bare(bl);
+    }
+    for (unsigned i = 0; i < s; i++) {
+      ::encode(cmds[i].flags, bl);
+    }
+    ENCODE_FINISH(bl);
+  }
+  static void decode_vector(std::vector<MonCommand> &cmds,
+                           bufferlist::iterator &bl) {
+    DECODE_START(2, bl);
+    uint16_t s = 0;
+    ::decode(s, bl);
+    cmds.resize(s);
+    for (unsigned i = 0; i < s; ++i) {
+      cmds[i].decode_bare(bl);
+    }
+    if (struct_v >= 2) {
+      for (unsigned i = 0; i < s; i++)
+        ::decode(cmds[i].flags, bl);
+    } else {
+      for (unsigned i = 0; i < s; i++)
+        cmds[i].flags = 0;
+    }
+    DECODE_FINISH(bl);
+  }
+
+  bool requires_perm(char p) const {
+    return (req_perms.find(p) != std::string::npos);
+  }
+};
+WRITE_CLASS_ENCODER(MonCommand)