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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) 2008-2011 New Dream Network
*
* 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_LOCKDEP_H
#define CEPH_LOCKDEP_H
#include "include/common_fwd.h"
#ifdef CEPH_DEBUG_MUTEX
extern bool g_lockdep;
extern void lockdep_register_ceph_context(CephContext *cct);
extern void lockdep_unregister_ceph_context(CephContext *cct);
// lockdep tracks dependencies between multiple and different instances
// of locks within a class denoted by `n`.
// Caller is obliged to guarantee name uniqueness.
extern int lockdep_register(const char *n);
extern void lockdep_unregister(int id);
extern int lockdep_will_lock(const char *n, int id, bool force_backtrace=false,
bool recursive=false);
extern int lockdep_locked(const char *n, int id, bool force_backtrace=false);
extern int lockdep_will_unlock(const char *n, int id);
extern int lockdep_dump_locks();
#else
static constexpr bool g_lockdep = false;
#define lockdep_register(...) 0
#define lockdep_unregister(...)
#define lockdep_will_lock(...) 0
#define lockdep_locked(...) 0
#define lockdep_will_unlock(...) 0
#endif // CEPH_DEBUG_MUTEX
#endif
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