projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 64a044d5 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/tls.h | |
| 3 | // Purpose: Implementation of thread local storage | |
| 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_TLS_H_ | |
| 12 | #define _WX_TLS_H_ | |
| 13 | ||
| 14 | #include "wx/defs.h" | |
| 15 | ||
| 16 | // ---------------------------------------------------------------------------- | |
| 17 | // check for compiler support of thread-specific variables | |
| 18 | // ---------------------------------------------------------------------------- | |
| 19 | ||
| 20 | #ifdef HAVE___THREAD_KEYWORD | |
| 21 | #define wxHAS_COMPILER_TLS | |
| 22 | #define wxTHREAD_SPECIFIC_DECL __thread | |
| 23 | #elif wxCHECK_VISUALC_VERSION(7) | |
| 24 | #define wxHAS_COMPILER_TLS | |
| 25 | #define wxTHREAD_SPECIFIC_DECL __declspec(thread) | |
| 26 | #endif | |
| 27 | ||
| 28 | // ---------------------------------------------------------------------------- | |
| 29 | // define wxTLS_TYPE() | |
| 30 | // ---------------------------------------------------------------------------- | |
| 31 | ||
| 32 | #ifdef wxHAS_COMPILER_TLS | |
| 33 | #define wxTLS_TYPE(T) wxTHREAD_SPECIFIC_DECL T | |
| 34 | #else // !wxHAS_COMPILER_TLS | |
| 35 | #ifdef __WXMSW__ | |
| 36 | #include "wx/msw/tls.h" | |
| 37 | #elif defined(__UNIX__) | |
| 38 | #include "wx/unix/tls.h" | |
| 39 | #else | |
| 40 | // TODO: we could emulate TLS for such platforms... | |
| 41 | #error Neither compiler nor OS support thread-specific variables. | |
| 42 | #endif | |
| 43 | ||
| 44 | // wxTlsValue<T> represents a thread-specific value of type T | |
| 45 | template <typename T> | |
| 46 | class wxTlsValue | |
| 47 | { | |
| 48 | public: | |
| 49 | typedef T ValueType; | |
| 50 | ||
| 51 | wxTlsValue() { *this = static_cast<T>(0); } | |
| 52 | ||
| 53 | wxTlsValue& operator=(T value) | |
| 54 | { | |
| 55 | m_key.Set(wxUIntToPtr(value)); | |
| 56 | ||
| 57 | return *this; | |
| 58 | } | |
| 59 | ||
| 60 | operator T() const { return wxPtrToUInt(m_key.Get()); } | |
| 61 | ||
| 62 | private: | |
| 63 | wxTlsKey m_key; | |
| 64 | ||
| 65 | DECLARE_NO_COPY_TEMPLATE_CLASS(wxTlsValue, T) | |
| 66 | }; | |
| 67 | ||
| 68 | #define wxTLS_TYPE(T) wxTlsValue<T> | |
| 69 | #endif // wxHAS_COMPILER_TLS/!wxHAS_COMPILER_TLS | |
| 70 | ||
| 71 | #endif // _WX_TLS_H_ | |
| 72 |