initial code repo

[stor4nfv.git] / src / ceph / src / cls / lock / cls_lock_client.h

diff --git a/src/ceph/src/cls/lock/cls_lock_client.h b/src/ceph/src/cls/lock/cls_lock_client.h
new file mode 100644 (file)
index 0000000..7aa0623
--- /dev/null
+++ b/src/ceph/src/cls/lock/cls_lock_client.h
@@ -0,0 +1,119 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_CLS_LOCK_CLIENT_H
+#define CEPH_CLS_LOCK_CLIENT_H
+
+#include "cls/lock/cls_lock_types.h"
+
+namespace librados {
+  class AioCompletion;
+  class ObjectWriteOperation;
+  class IoCtx;
+  class ObjectReadOperation;
+  class ObjectOperation;
+}
+
+namespace rados {
+  namespace cls {
+    namespace lock {
+      extern void lock(librados::ObjectWriteOperation *rados_op,
+                      const std::string& name, ClsLockType type,
+                      const std::string& cookie, const std::string& tag,
+                      const std::string& description, const utime_t& duration,
+                      uint8_t flags);
+
+      extern int lock(librados::IoCtx *ioctx,
+                     const std::string& oid,
+                     const std::string& name, ClsLockType type,
+                     const std::string& cookie, const std::string& tag,
+                     const std::string& description, const utime_t& duration,
+                     uint8_t flags);
+
+      extern void unlock(librados::ObjectWriteOperation *rados_op,
+                        const std::string& name, const std::string& cookie);
+
+      extern int unlock(librados::IoCtx *ioctx, const std::string& oid,
+                       const std::string& name, const std::string& cookie);
+
+      extern int aio_unlock(librados::IoCtx *ioctx, const std::string& oid,
+                           const std::string& name, const std::string& cookie,
+                           librados::AioCompletion *completion);
+
+      extern void break_lock(librados::ObjectWriteOperation *op,
+                            const std::string& name, const std::string& cookie,
+                            const entity_name_t& locker);
+
+      extern int break_lock(librados::IoCtx *ioctx, const std::string& oid,
+                           const std::string& name, const std::string& cookie,
+                           const entity_name_t& locker);
+
+      extern int list_locks(librados::IoCtx *ioctx, const std::string& oid,
+                           list<std::string> *locks);
+      extern void get_lock_info_start(librados::ObjectReadOperation *rados_op,
+                                     const std::string& name);
+      extern int get_lock_info_finish(ceph::bufferlist::iterator *out,
+                                     map<locker_id_t, locker_info_t> *lockers,
+                                     ClsLockType *type, std::string *tag);
+
+      extern int get_lock_info(librados::IoCtx *ioctx, const std::string& oid,
+                              const std::string& name,
+                              map<locker_id_t, locker_info_t> *lockers,
+                              ClsLockType *type, std::string *tag);
+
+      extern void assert_locked(librados::ObjectOperation *rados_op,
+                                const std::string& name, ClsLockType type,
+                                const std::string& cookie,
+                                const std::string& tag);
+
+      extern void set_cookie(librados::ObjectWriteOperation *rados_op,
+                             const std::string& name, ClsLockType type,
+                             const std::string& cookie, const std::string& tag,
+                             const std::string& new_cookie);
+
+      class Lock {
+       std::string name;
+       std::string cookie;
+       std::string tag;
+       std::string description;
+       utime_t duration;
+       uint8_t flags;
+
+      public:
+
+       Lock(const std::string& _n) : name(_n), flags(0) {}
+
+       void set_cookie(const std::string& c) { cookie = c; }
+       void set_tag(const std::string& t) { tag = t; }
+       void set_description(const std::string& desc) { description = desc; }
+       void set_duration(const utime_t& e) { duration = e; }
+       void set_renew(bool renew) {
+         if (renew) {
+           flags |= LOCK_FLAG_RENEW;
+         } else {
+           flags &= ~LOCK_FLAG_RENEW;
+         }
+       }
+
+        void assert_locked_exclusive(librados::ObjectOperation *rados_op);
+        void assert_locked_shared(librados::ObjectOperation *rados_op);
+
+       /* ObjectWriteOperation */
+       void lock_exclusive(librados::ObjectWriteOperation *ioctx);
+       void lock_shared(librados::ObjectWriteOperation *ioctx);
+       void unlock(librados::ObjectWriteOperation *ioctx);
+       void break_lock(librados::ObjectWriteOperation *ioctx, const entity_name_t& locker);
+
+       /* IoCtx */
+       int lock_exclusive(librados::IoCtx *ioctx, const std::string& oid);
+       int lock_shared(librados::IoCtx *ioctx, const std::string& oid);
+       int unlock(librados::IoCtx *ioctx, const std::string& oid);
+       int break_lock(librados::IoCtx *ioctx, const std::string& oid,
+                      const entity_name_t& locker);
+      };
+
+    } // namespace lock
+  }  // namespace cls
+} // namespace rados
+
+#endif