Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1 | // -*- C++ -*- |
| 2 | //===--------------------------- thread -----------------------------------===// |
| 3 | // |
Howard Hinnant | f5256e1 | 2010-05-11 21:36:01 +0000 | [diff] [blame] | 4 | // The LLVM Compiler Infrastructure |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 5 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 6 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 7 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 8 | // |
| 9 | //===----------------------------------------------------------------------===// |
| 10 | |
| 11 | #ifndef _LIBCPP_THREAD |
| 12 | #define _LIBCPP_THREAD |
| 13 | |
| 14 | /* |
| 15 | |
| 16 | thread synopsis |
| 17 | |
Howard Hinnant | a785e4e | 2010-08-21 21:01:59 +0000 | [diff] [blame] | 18 | #define __STDCPP_THREADS__ __cplusplus |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 19 | |
| 20 | namespace std |
| 21 | { |
| 22 | |
| 23 | class thread |
| 24 | { |
| 25 | public: |
| 26 | class id; |
| 27 | typedef pthread_t native_handle_type; |
| 28 | |
| 29 | thread(); |
| 30 | template <class F, class ...Args> explicit thread(F&& f, Args&&... args); |
| 31 | ~thread(); |
| 32 | |
| 33 | thread(const thread&) = delete; |
| 34 | thread(thread&& t); |
| 35 | |
| 36 | thread& operator=(const thread&) = delete; |
| 37 | thread& operator=(thread&& t); |
| 38 | |
| 39 | void swap(thread& t); |
| 40 | |
| 41 | bool joinable() const; |
| 42 | void join(); |
| 43 | void detach(); |
| 44 | id get_id() const; |
| 45 | native_handle_type native_handle(); |
| 46 | |
| 47 | static unsigned hardware_concurrency(); |
| 48 | }; |
| 49 | |
| 50 | void swap(thread& x, thread& y); |
| 51 | |
| 52 | class thread::id |
| 53 | { |
| 54 | public: |
| 55 | id(); |
| 56 | }; |
| 57 | |
| 58 | bool operator==(thread::id x, thread::id y); |
| 59 | bool operator!=(thread::id x, thread::id y); |
| 60 | bool operator< (thread::id x, thread::id y); |
| 61 | bool operator<=(thread::id x, thread::id y); |
| 62 | bool operator> (thread::id x, thread::id y); |
| 63 | bool operator>=(thread::id x, thread::id y); |
| 64 | |
| 65 | template<class charT, class traits> |
| 66 | basic_ostream<charT, traits>& |
| 67 | operator<<(basic_ostream<charT, traits>& out, thread::id id); |
| 68 | |
| 69 | namespace this_thread |
| 70 | { |
| 71 | |
| 72 | thread::id get_id(); |
| 73 | |
| 74 | void yield(); |
| 75 | |
| 76 | template <class Clock, class Duration> |
| 77 | void sleep_until(const chrono::time_point<Clock, Duration>& abs_time); |
| 78 | |
| 79 | template <class Rep, class Period> |
| 80 | void sleep_for(const chrono::duration<Rep, Period>& rel_time); |
| 81 | |
| 82 | } // this_thread |
| 83 | |
| 84 | } // std |
| 85 | |
| 86 | */ |
| 87 | |
| 88 | #include <__config> |
| 89 | #include <iosfwd> |
| 90 | #include <__functional_base> |
| 91 | #include <type_traits> |
| 92 | #include <cstddef> |
| 93 | #include <functional> |
| 94 | #include <memory> |
| 95 | #include <system_error> |
| 96 | #include <chrono> |
| 97 | #include <__mutex_base> |
Howard Hinnant | 656bdc3 | 2011-05-16 18:40:35 +0000 | [diff] [blame] | 98 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 99 | #include <tuple> |
| 100 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 101 | #include <pthread.h> |
| 102 | |
| 103 | #pragma GCC system_header |
| 104 | |
Howard Hinnant | a785e4e | 2010-08-21 21:01:59 +0000 | [diff] [blame] | 105 | #define __STDCPP_THREADS__ __cplusplus |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 106 | |
| 107 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 108 | |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 109 | template <class _Tp> |
| 110 | class __thread_specific_ptr |
| 111 | { |
| 112 | pthread_key_t __key_; |
| 113 | |
| 114 | __thread_specific_ptr(const __thread_specific_ptr&); |
| 115 | __thread_specific_ptr& operator=(const __thread_specific_ptr&); |
| 116 | |
| 117 | static void __at_thread_exit(void*); |
| 118 | public: |
| 119 | typedef _Tp* pointer; |
| 120 | |
| 121 | __thread_specific_ptr(); |
| 122 | ~__thread_specific_ptr(); |
| 123 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 124 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 125 | pointer get() const {return static_cast<_Tp*>(pthread_getspecific(__key_));} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 126 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 127 | pointer operator*() const {return *get();} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 128 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 129 | pointer operator->() const {return get();} |
| 130 | pointer release(); |
| 131 | void reset(pointer __p = nullptr); |
| 132 | }; |
| 133 | |
| 134 | template <class _Tp> |
| 135 | void |
| 136 | __thread_specific_ptr<_Tp>::__at_thread_exit(void* __p) |
| 137 | { |
| 138 | delete static_cast<pointer>(__p); |
| 139 | } |
| 140 | |
| 141 | template <class _Tp> |
| 142 | __thread_specific_ptr<_Tp>::__thread_specific_ptr() |
| 143 | { |
| 144 | int __ec = pthread_key_create(&__key_, &__thread_specific_ptr::__at_thread_exit); |
| 145 | if (__ec) |
| 146 | throw system_error(error_code(__ec, system_category()), |
| 147 | "__thread_specific_ptr construction failed"); |
| 148 | } |
| 149 | |
| 150 | template <class _Tp> |
| 151 | __thread_specific_ptr<_Tp>::~__thread_specific_ptr() |
| 152 | { |
| 153 | pthread_key_delete(__key_); |
| 154 | } |
| 155 | |
| 156 | template <class _Tp> |
| 157 | typename __thread_specific_ptr<_Tp>::pointer |
| 158 | __thread_specific_ptr<_Tp>::release() |
| 159 | { |
| 160 | pointer __p = get(); |
| 161 | pthread_setspecific(__key_, 0); |
| 162 | return __p; |
| 163 | } |
| 164 | |
| 165 | template <class _Tp> |
| 166 | void |
| 167 | __thread_specific_ptr<_Tp>::reset(pointer __p) |
| 168 | { |
| 169 | pointer __p_old = get(); |
| 170 | pthread_setspecific(__key_, __p); |
| 171 | delete __p_old; |
| 172 | } |
| 173 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 174 | class thread; |
| 175 | class __thread_id; |
| 176 | |
| 177 | namespace this_thread |
| 178 | { |
| 179 | |
| 180 | __thread_id get_id(); |
| 181 | |
| 182 | } // this_thread |
| 183 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 184 | class _LIBCPP_VISIBLE __thread_id |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 185 | { |
Howard Hinnant | adff489 | 2010-05-24 17:49:41 +0000 | [diff] [blame] | 186 | // FIXME: pthread_t is a pointer on Darwin but a long on Linux. |
| 187 | // NULL is the no-thread value on Darwin. Someone needs to check |
| 188 | // on other platforms. We assume 0 works everywhere for now. |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 189 | pthread_t __id_; |
| 190 | |
| 191 | public: |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 192 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 193 | __thread_id() : __id_(0) {} |
| 194 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 195 | friend _LIBCPP_INLINE_VISIBILITY |
| 196 | bool operator==(__thread_id __x, __thread_id __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 197 | {return __x.__id_ == __y.__id_;} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 198 | friend _LIBCPP_INLINE_VISIBILITY |
| 199 | bool operator!=(__thread_id __x, __thread_id __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 200 | {return !(__x == __y);} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 201 | friend _LIBCPP_INLINE_VISIBILITY |
| 202 | bool operator< (__thread_id __x, __thread_id __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 203 | {return __x.__id_ < __y.__id_;} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 204 | friend _LIBCPP_INLINE_VISIBILITY |
| 205 | bool operator<=(__thread_id __x, __thread_id __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 206 | {return !(__y < __x);} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 207 | friend _LIBCPP_INLINE_VISIBILITY |
| 208 | bool operator> (__thread_id __x, __thread_id __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 209 | {return __y < __x ;} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 210 | friend _LIBCPP_INLINE_VISIBILITY |
| 211 | bool operator>=(__thread_id __x, __thread_id __y) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 212 | {return !(__x < __y);} |
| 213 | |
| 214 | template<class _CharT, class _Traits> |
| 215 | friend |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 216 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 217 | basic_ostream<_CharT, _Traits>& |
| 218 | operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id) |
| 219 | {return __os << __id.__id_;} |
| 220 | |
| 221 | private: |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 222 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 223 | __thread_id(pthread_t __id) : __id_(__id) {} |
| 224 | |
| 225 | friend __thread_id this_thread::get_id(); |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 226 | friend class _LIBCPP_VISIBLE thread; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 227 | }; |
| 228 | |
| 229 | template<class _Tp> struct hash; |
| 230 | |
| 231 | template<> |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 232 | struct _LIBCPP_VISIBLE hash<__thread_id> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 233 | : public unary_function<__thread_id, size_t> |
| 234 | { |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 235 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 236 | size_t operator()(__thread_id __v) const |
| 237 | { |
| 238 | const size_t* const __p = reinterpret_cast<const size_t*>(&__v); |
| 239 | return *__p; |
| 240 | } |
| 241 | }; |
| 242 | |
| 243 | namespace this_thread |
| 244 | { |
| 245 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 246 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 247 | __thread_id |
| 248 | get_id() |
| 249 | { |
| 250 | return pthread_self(); |
| 251 | } |
| 252 | |
| 253 | } // this_thread |
| 254 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 255 | class _LIBCPP_VISIBLE thread |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 256 | { |
| 257 | pthread_t __t_; |
| 258 | |
Howard Hinnant | 60a0a8e | 2010-08-10 20:48:29 +0000 | [diff] [blame] | 259 | thread(const thread&); |
| 260 | thread& operator=(const thread&); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 261 | public: |
| 262 | typedef __thread_id id; |
| 263 | typedef pthread_t native_handle_type; |
| 264 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 265 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 266 | thread() : __t_(0) {} |
| 267 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 268 | template <class _F, class ..._Args, |
| 269 | class = typename enable_if |
| 270 | < |
| 271 | !is_same<typename decay<_F>::type, thread>::value |
| 272 | >::type |
| 273 | > |
| 274 | explicit thread(_F&& __f, _Args&&... __args); |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 275 | #else // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 276 | template <class _F> explicit thread(_F __f); |
| 277 | #endif |
| 278 | ~thread(); |
| 279 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 280 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 281 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 282 | thread(thread&& __t) : __t_(__t.__t_) {__t.__t_ = 0;} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 283 | thread& operator=(thread&& __t); |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 284 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 285 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 286 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 287 | void swap(thread& __t) {_STD::swap(__t_, __t.__t_);} |
| 288 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 289 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | adff489 | 2010-05-24 17:49:41 +0000 | [diff] [blame] | 290 | bool joinable() const {return __t_ != 0;} |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 291 | void join(); |
| 292 | void detach(); |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 293 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 294 | id get_id() const {return __t_;} |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 295 | _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 296 | native_handle_type native_handle() {return __t_;} |
| 297 | |
| 298 | static unsigned hardware_concurrency(); |
| 299 | }; |
| 300 | |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 301 | class __assoc_sub_state; |
| 302 | |
Howard Hinnant | 2d72b1e | 2010-12-17 14:46:43 +0000 | [diff] [blame] | 303 | class _LIBCPP_HIDDEN __thread_struct_imp; |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 304 | |
| 305 | class __thread_struct |
| 306 | { |
| 307 | __thread_struct_imp* __p_; |
| 308 | |
| 309 | __thread_struct(const __thread_struct&); |
| 310 | __thread_struct& operator=(const __thread_struct&); |
| 311 | public: |
| 312 | __thread_struct(); |
| 313 | ~__thread_struct(); |
| 314 | |
Howard Hinnant | e6e4d01 | 2010-09-03 21:46:37 +0000 | [diff] [blame] | 315 | void notify_all_at_thread_exit(condition_variable*, mutex*); |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 316 | void __make_ready_at_thread_exit(__assoc_sub_state*); |
| 317 | }; |
| 318 | |
Howard Hinnant | 5306d68 | 2010-10-14 19:18:04 +0000 | [diff] [blame] | 319 | __thread_specific_ptr<__thread_struct>& __thread_local_data(); |
Howard Hinnant | 47499b1 | 2010-08-27 20:10:19 +0000 | [diff] [blame] | 320 | |
Howard Hinnant | 656bdc3 | 2011-05-16 18:40:35 +0000 | [diff] [blame] | 321 | #ifndef _LIBCPP_HAS_NO_VARIADICS |
| 322 | |
| 323 | template <class _F, class ..._Args, size_t ..._Indices> |
| 324 | inline _LIBCPP_INLINE_VISIBILITY |
| 325 | void |
| 326 | __threaad_execute(tuple<_F, _Args...>& __t, __tuple_indices<_Indices...>) |
| 327 | { |
Howard Hinnant | 57cff29 | 2011-05-19 15:05:04 +0000 | [diff] [blame] | 328 | __invoke(_STD::move(_STD::get<0>(__t)), _STD::move(_STD::get<_Indices>(__t))...); |
Howard Hinnant | 656bdc3 | 2011-05-16 18:40:35 +0000 | [diff] [blame] | 329 | } |
| 330 | |
| 331 | template <class _F> |
| 332 | void* |
| 333 | __thread_proxy(void* __vp) |
| 334 | { |
| 335 | __thread_local_data().reset(new __thread_struct); |
| 336 | std::unique_ptr<_F> __p(static_cast<_F*>(__vp)); |
| 337 | typedef typename __make_tuple_indices<tuple_size<_F>::value, 1>::type _Index; |
| 338 | __threaad_execute(*__p, _Index()); |
| 339 | return nullptr; |
| 340 | } |
| 341 | |
| 342 | template <class _F, class ..._Args, |
| 343 | class |
| 344 | > |
| 345 | thread::thread(_F&& __f, _Args&&... __args) |
| 346 | { |
| 347 | typedef tuple<typename decay<_F>::type, typename decay<_Args>::type...> _G; |
| 348 | _STD::unique_ptr<_G> __p(new _G(__decay_copy(_STD::forward<_F>(__f)), |
| 349 | __decay_copy(_STD::forward<_Args>(__args))...)); |
| 350 | int __ec = pthread_create(&__t_, 0, &__thread_proxy<_G>, __p.get()); |
| 351 | if (__ec == 0) |
| 352 | __p.release(); |
| 353 | else |
| 354 | __throw_system_error(__ec, "thread constructor failed"); |
| 355 | } |
| 356 | |
| 357 | #else // _LIBCPP_HAS_NO_VARIADICS |
| 358 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 359 | template <class _F> |
| 360 | void* |
| 361 | __thread_proxy(void* __vp) |
| 362 | { |
Howard Hinnant | 5306d68 | 2010-10-14 19:18:04 +0000 | [diff] [blame] | 363 | __thread_local_data().reset(new __thread_struct); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 364 | std::unique_ptr<_F> __p(static_cast<_F*>(__vp)); |
| 365 | (*__p)(); |
| 366 | return nullptr; |
| 367 | } |
| 368 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 369 | template <class _F> |
| 370 | thread::thread(_F __f) |
| 371 | { |
| 372 | std::unique_ptr<_F> __p(new _F(__f)); |
| 373 | int __ec = pthread_create(&__t_, 0, &__thread_proxy<_F>, __p.get()); |
| 374 | if (__ec == 0) |
| 375 | __p.release(); |
| 376 | else |
| 377 | __throw_system_error(__ec, "thread constructor failed"); |
| 378 | } |
| 379 | |
Howard Hinnant | 324bb03 | 2010-08-22 00:02:43 +0000 | [diff] [blame] | 380 | #endif // _LIBCPP_HAS_NO_VARIADICS |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 381 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 382 | #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 383 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 384 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 385 | thread& |
| 386 | thread::operator=(thread&& __t) |
| 387 | { |
Howard Hinnant | a6a062d | 2010-06-02 18:20:39 +0000 | [diff] [blame] | 388 | if (__t_ != 0) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 389 | terminate(); |
| 390 | __t_ = __t.__t_; |
Howard Hinnant | a6a062d | 2010-06-02 18:20:39 +0000 | [diff] [blame] | 391 | __t.__t_ = 0; |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 392 | return *this; |
| 393 | } |
| 394 | |
Howard Hinnant | 73d21a4 | 2010-09-04 23:28:19 +0000 | [diff] [blame] | 395 | #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 396 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 397 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 398 | void swap(thread& __x, thread& __y) {__x.swap(__y);} |
| 399 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 400 | namespace this_thread |
| 401 | { |
| 402 | |
| 403 | void sleep_for(const chrono::nanoseconds& ns); |
| 404 | |
| 405 | template <class _Rep, class _Period> |
| 406 | void |
| 407 | sleep_for(const chrono::duration<_Rep, _Period>& __d) |
| 408 | { |
| 409 | using namespace chrono; |
| 410 | nanoseconds __ns = duration_cast<nanoseconds>(__d); |
| 411 | if (__ns < __d) |
| 412 | ++__ns; |
| 413 | sleep_for(__ns); |
| 414 | } |
| 415 | |
| 416 | template <class _Clock, class _Duration> |
| 417 | void |
| 418 | sleep_until(const chrono::time_point<_Clock, _Duration>& __t) |
| 419 | { |
| 420 | using namespace chrono; |
| 421 | mutex __mut; |
| 422 | condition_variable __cv; |
| 423 | unique_lock<mutex> __lk(__mut); |
| 424 | while (_Clock::now() < __t) |
| 425 | __cv.wait_until(__lk, __t); |
| 426 | } |
| 427 | |
| 428 | template <class _Duration> |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 429 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 430 | void |
Howard Hinnant | f8f8521 | 2010-11-20 19:16:30 +0000 | [diff] [blame] | 431 | sleep_until(const chrono::time_point<chrono::steady_clock, _Duration>& __t) |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 432 | { |
| 433 | using namespace chrono; |
Howard Hinnant | f8f8521 | 2010-11-20 19:16:30 +0000 | [diff] [blame] | 434 | sleep_for(__t - steady_clock::now()); |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 435 | } |
| 436 | |
Howard Hinnant | 8d7a955 | 2010-09-23 17:31:07 +0000 | [diff] [blame] | 437 | inline _LIBCPP_INLINE_VISIBILITY |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 438 | void yield() {sched_yield();} |
| 439 | |
| 440 | } // this_thread |
| 441 | |
| 442 | _LIBCPP_END_NAMESPACE_STD |
| 443 | |
| 444 | #endif // _LIBCPP_THREAD |