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Diffstat (limited to 'src/common/lockdep.h')
| -rw-r--r-- | src/common/lockdep.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/common/lockdep.h b/src/common/lockdep.h new file mode 100644 index 000000000..f2376d0b1 --- /dev/null +++ b/src/common/lockdep.h @@ -0,0 +1,49 @@ +// -*- 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 |