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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: atomic.h | |
3 | // Purpose: interface of global functions | |
4 | // Author: wxWidgets team | |
5 | // RCS-ID: $Id$ | |
6 | // Licence: wxWindows licence | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | ||
10 | // ============================================================================ | |
11 | // Global functions/macros | |
12 | // ============================================================================ | |
13 | ||
14 | /** @addtogroup group_funcmacro_atomic */ | |
15 | //@{ | |
16 | ||
17 | /** | |
18 | This function increments @a value in an atomic manner. | |
19 | ||
20 | Whenever possible wxWidgets provides an efficient, CPU-specific, | |
21 | implementation of this function. If such implementation is available, the | |
22 | symbol wxHAS_ATOMIC_OPS is defined. Otherwise this function still exists | |
23 | but is implemented in a generic way using a critical section which can be | |
24 | prohibitively expensive for use in performance-sensitive code. | |
25 | ||
26 | @header{wx/atomic.h} | |
27 | */ | |
28 | void wxAtomicInc(wxAtomicInt& value); | |
29 | ||
30 | /** | |
31 | This function decrements value in an atomic manner. | |
32 | ||
33 | Returns 0 if value is 0 after decrement or any non-zero value (not | |
34 | necessarily equal to the value of the variable) otherwise. | |
35 | ||
36 | @see wxAtomicInc | |
37 | ||
38 | @header{wx/atomic.h} | |
39 | */ | |
40 | wxInt32 wxAtomicDec(wxAtomicInt& value); | |
41 | ||
42 | //@} | |
43 |