1 /* 2 Copyright (c) 2005-2022 Intel Corporation 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 #ifndef _TBB_tls_H 18 #define _TBB_tls_H 19 20 #include "oneapi/tbb/detail/_config.h" 21 22 #if __TBB_USE_POSIX 23 #include <pthread.h> 24 #else /* assume __TBB_USE_WINAPI */ 25 #include <windows.h> 26 #endif 27 28 namespace tbb { 29 namespace detail { 30 namespace r1 { 31 32 typedef void (*tls_dtor_t)(void*); 33 34 //! Basic cross-platform wrapper class for TLS operations. 35 template <typename T> 36 class basic_tls { 37 #if __TBB_USE_POSIX 38 typedef pthread_key_t tls_key_t; 39 public: 40 int create( tls_dtor_t dtor = nullptr ) { 41 return pthread_key_create(&my_key, dtor); 42 } destroy()43 int destroy() { return pthread_key_delete(my_key); } set(T value)44 void set( T value ) { pthread_setspecific(my_key, (void*)value); } get()45 T get() { return (T)pthread_getspecific(my_key); } 46 #else /* __TBB_USE_WINAPI */ 47 typedef DWORD tls_key_t; 48 public: 49 #if !__TBB_WIN8UI_SUPPORT 50 int create() { 51 tls_key_t tmp = TlsAlloc(); 52 if( tmp==TLS_OUT_OF_INDEXES ) 53 return TLS_OUT_OF_INDEXES; 54 my_key = tmp; 55 return 0; 56 } 57 int destroy() { TlsFree(my_key); my_key=0; return 0; } 58 void set( T value ) { TlsSetValue(my_key, (LPVOID)value); } 59 T get() { return (T)TlsGetValue(my_key); } 60 #else /*!__TBB_WIN8UI_SUPPORT*/ 61 int create() { 62 tls_key_t tmp = FlsAlloc(nullptr); 63 if( tmp== (DWORD)0xFFFFFFFF ) 64 return (DWORD)0xFFFFFFFF; 65 my_key = tmp; 66 return 0; 67 } 68 int destroy() { FlsFree(my_key); my_key=0; return 0; } 69 void set( T value ) { FlsSetValue(my_key, (LPVOID)value); } 70 T get() { return (T)FlsGetValue(my_key); } 71 #endif /* !__TBB_WIN8UI_SUPPORT */ 72 #endif /* __TBB_USE_WINAPI */ 73 private: 74 tls_key_t my_key; 75 }; 76 77 } // namespace r1 78 } // namespace detail 79 } // namespace tbb 80 81 #endif /* _TBB_tls_H */ 82