initial code repo

[stor4nfv.git] / src / ceph / src / include / uuid.h

diff --git a/src/ceph/src/include/uuid.h b/src/ceph/src/include/uuid.h
new file mode 100644 (file)
index 0000000..98ee4b7
--- /dev/null
+++ b/src/ceph/src/include/uuid.h
@@ -0,0 +1,82 @@
+#ifndef _CEPH_UUID_H
+#define _CEPH_UUID_H
+
+/*
+ * Thin C++ wrapper around libuuid.
+ */
+
+#include "encoding.h"
+#include <ostream>
+
+#include <boost/uuid/uuid.hpp>
+#include <boost/uuid/uuid_generators.hpp>
+#include <boost/uuid/uuid_io.hpp>
+#include <boost/random/random_device.hpp>
+
+struct uuid_d {
+  boost::uuids::uuid uuid;
+
+  uuid_d() {
+    boost::uuids::nil_generator gen;
+    uuid = gen();
+  }
+
+  bool is_zero() const {
+    return uuid.is_nil();
+  }
+
+  void generate_random() {
+    boost::random::random_device rng("/dev/urandom");
+    boost::uuids::basic_random_generator<boost::random::random_device> gen(&rng);
+    uuid = gen();
+  }
+  
+  bool parse(const char *s) {
+    try {
+      boost::uuids::string_generator gen;
+      uuid = gen(s);
+      return true;
+    } catch (std::runtime_error& e) {
+      return false;
+    }
+  }
+  void print(char *s) const {
+    memcpy(s, boost::uuids::to_string(uuid).c_str(), 37);
+  }
+
+ std::string to_string() const {
+    return boost::uuids::to_string(uuid);
+  }
+
+  char *bytes() const {
+    return (char*)uuid.data;
+  }
+
+  void encode(bufferlist& bl) const {
+    ::encode_raw(uuid, bl);
+  }
+
+  void decode(bufferlist::iterator& p) const {
+    ::decode_raw(uuid, p);
+  }
+};
+WRITE_CLASS_ENCODER(uuid_d)
+
+inline std::ostream& operator<<(std::ostream& out, const uuid_d& u) {
+  char b[37];
+  u.print(b);
+  return out << b;
+}
+
+inline bool operator==(const uuid_d& l, const uuid_d& r) {
+  return l.uuid == r.uuid;
+}
+inline bool operator!=(const uuid_d& l, const uuid_d& r) {
+  return l.uuid != r.uuid;
+}
+inline bool operator<(const uuid_d& l, const uuid_d& r) {
+  return l.to_string() < r.to_string();
+}
+
+
+#endif