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git.saurik.com Git - wxWidgets.git/blob - docs/doxygen/groups/funcmacro_atomic.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: funcmacro_atomic.h
3 // Purpose: Atomic Operation function and macro group docs
4 // Author: wxWidgets team
5 // RCS-ID: $Id: funcmacro_gdi.h 52454 2008-03-12 19:08:48Z BP $
6 // Licence: wxWindows license
7 /////////////////////////////////////////////////////////////////////////////
11 @defgroup group_funcmacro_atomic Atomic Operations
12 @ingroup group_funcmacro
14 When using multi-threaded applications, it is often required to access or
15 modify memory which is shared between threads. Atomic integer and pointer
16 operations are an efficient way to handle this issue (another, less efficient,
17 way is to use a wxMutex or wxCriticalSection). A native implementation exists
18 for Windows, Linux, Solaris and Mac OS X; for others, a wxCriticalSection is
19 used to protect the data.
21 One particular application is reference counting (used by so-called
22 @ref group_class_smartpointers "smart pointers").
24 You should define your variable with the type wxAtomicInt in order to apply
25 atomic operations to it.