projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 64a044d5 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/unix/tls.h | |
| 3 | // Purpose: Win32 implementation of wxTlsValue<> | |
| 4 | // Author: Vadim Zeitlin | |
| 5 | // Created: 2008-08-08 | |
| 6 | // RCS-ID: $Id$ | |
| 7 | // Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org> | |
| 8 | // Licence: wxWindows licence | |
| 9 | /////////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | #ifndef _WX_MSW_TLS_H_ | |
| 12 | #define _WX_MSW_TLS_H_ | |
| 13 | ||
| 14 | #include "wx/log.h" | |
| 15 | ||
| 16 | #include "wx/msw/wrapwin.h" | |
| 17 | ||
| 18 | // ---------------------------------------------------------------------------- | |
| 19 | // wxTlsKey is a helper class encapsulating a TLS slot | |
| 20 | // ---------------------------------------------------------------------------- | |
| 21 | ||
| 22 | class wxTlsKey | |
| 23 | { | |
| 24 | public: | |
| 25 | // ctor allocates a new key | |
| 26 | wxTlsKey() | |
| 27 | { | |
| 28 | m_slot = ::TlsAlloc(); | |
| 29 | if ( m_slot == TLS_OUT_OF_INDEXES ) | |
| 30 | wxLogError("Creating TLS key failed"); | |
| 31 | } | |
| 32 | ||
| 33 | // return true if the key was successfully allocated | |
| 34 | bool IsOk() const { return m_slot != TLS_OUT_OF_INDEXES; } | |
| 35 | ||
| 36 | // get the key value, there is no error return | |
| 37 | void *Get() const | |
| 38 | { | |
| 39 | return ::TlsGetValue(m_slot); | |
| 40 | } | |
| 41 | ||
| 42 | // change the key value, return true if ok | |
| 43 | bool Set(void *value) | |
| 44 | { | |
| 45 | if ( !::TlsSetValue(m_slot, value) ) | |
| 46 | { | |
| 47 | wxLogSysError(_("Failed to set TLS value")); | |
| 48 | return false; | |
| 49 | } | |
| 50 | ||
| 51 | return true; | |
| 52 | } | |
| 53 | ||
| 54 | // free the key | |
| 55 | ~wxTlsKey() | |
| 56 | { | |
| 57 | if ( IsOk() ) | |
| 58 | { | |
| 59 | if ( !::TlsFree(m_slot) ) | |
| 60 | { | |
| 61 | wxLogDebug("TlsFree() failed: %08x", ::GetLastError()); | |
| 62 | } | |
| 63 | } | |
| 64 | } | |
| 65 | ||
| 66 | private: | |
| 67 | DWORD m_slot; | |
| 68 | ||
| 69 | DECLARE_NO_COPY_CLASS(wxTlsKey) | |
| 70 | }; | |
| 71 | ||
| 72 | #endif // _WX_MSW_TLS_H_ | |
| 73 |