# Null_Mutex.h File Reference

`#include "ace/os_include/os_errno.h"`
`#include "ace/Global_Macros.h"`
`#include "ace/OS_Memory.h"`

Include dependency graph for Null_Mutex.h:

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## Classes

class | ACE_Null_Mutex
| Implement a do nothing <ace_mutex>, i.e., all the methods are no ops. More...
class | ACE_Guard< ACE_Null_Mutex >
| Template specialization of ACE_Guard for the ACE_Null_Mutex. More...
class | ACE_Write_Guard< ACE_Null_Mutex >
class | ACE_Read_Guard< ACE_Null_Mutex >
class | ACE_Malloc_Lock_Adapter_T< ACE_Null_Mutex >

## Detailed Description

Id
  Null_Mutex.h,v 4.8 2006/02/10 10:08:25 jwillemsen Exp

Moved from Synch.h.

Author:
  Douglas C. Schmidt <schmidt@cs.wustl.edu>