projects / wxWidgets.git / blame
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|---|---|---|
| f35f85a9 SN |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/os2/tls.h | |
| 3 | // Purpose: OS/2 implementation of wxTlsValue<> | |
| 4 | // Author: Stefan Neis | |
| 5 | // Created: 2008-08-30 | |
| 6 | // RCS-ID: $Id$ | |
| 7 | // Copyright: (c) 2008 Stefan Neis | |
| 8 | // Licence: wxWindows licence | |
| 9 | /////////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | #ifndef _WX_MSW_TLS_H_ | |
| 12 | #define _WX_MSW_TLS_H_ | |
| 13 | ||
| 14 | #include "wx/os2/private.h" | |
| 15 | ||
| 16 | // ---------------------------------------------------------------------------- | |
| 17 | // wxTlsKey is a helper class encapsulating a TLS slot | |
| 18 | // ---------------------------------------------------------------------------- | |
| 19 | ||
| 20 | class wxTlsKey | |
| 21 | { | |
| 22 | public: | |
| 23 | // ctor allocates a new key | |
| 24 | wxTlsKey() | |
| 25 | { | |
| 26 | APIRET rc = ::DosAllocThreadLocalMemory(1, &m_slot); | |
| 2c6dbc21 VZ |
27 | if (rc != NO_ERROR) |
| 28 | m_slot = NULL; | |
| f35f85a9 SN |
29 | } |
| 30 | ||
| 31 | // return true if the key was successfully allocated | |
| 32 | bool IsOk() const { return m_slot != NULL; } | |
| 33 | ||
| 34 | // get the key value, there is no error return | |
| 35 | void *Get() const | |
| 36 | { | |
| 37 | return (void *)m_slot; | |
| 38 | } | |
| 39 | ||
| 40 | // change the key value, return true if ok | |
| 41 | bool Set(void *value) | |
| 42 | { | |
| 43 | m_slot = (ULONG*)value; | |
| 2c6dbc21 | 44 | return true; |
| f35f85a9 SN |
45 | } |
| 46 | ||
| 47 | // free the key | |
| 48 | ~wxTlsKey() | |
| 49 | { | |
| 50 | if ( IsOk() ) | |
| 51 | ::DosFreeThreadLocalMemory(m_slot); | |
| 52 | } | |
| 53 | ||
| 54 | private: | |
| 55 | ULONG* m_slot; | |
| 56 | ||
| 57 | DECLARE_NO_COPY_CLASS(wxTlsKey) | |
| 58 | }; | |
| 59 | ||
| 60 | #endif // _WX_MSW_TLS_H_ | |
| 61 |