Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | // -*- C++ -*- |
|---|---|
| 2 | //===----------------------------------------------------------------------===// |
| 3 | // |
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #ifndef _LIBCPP___CXX03___THREAD_ID_H |
| 11 | #define _LIBCPP___CXX03___THREAD_ID_H |
| 12 | |
| 13 | #include <__cxx03/__config> |
| 14 | #include <__cxx03/__fwd/functional.h> |
| 15 | #include <__cxx03/__fwd/ostream.h> |
| 16 | #include <__cxx03/__thread/support.h> |
| 17 | |
| 18 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 19 | # pragma GCC system_header |
| 20 | #endif |
| 21 | |
| 22 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 23 | |
| 24 | #ifndef _LIBCPP_HAS_NO_THREADS |
| 25 | class _LIBCPP_EXPORTED_FROM_ABI __thread_id; |
| 26 | |
| 27 | namespace this_thread { |
| 28 | |
| 29 | _LIBCPP_HIDE_FROM_ABI __thread_id get_id() _NOEXCEPT; |
| 30 | |
| 31 | } // namespace this_thread |
| 32 | |
| 33 | template <> |
| 34 | struct hash<__thread_id>; |
| 35 | |
| 36 | class _LIBCPP_TEMPLATE_VIS __thread_id { |
| 37 | // FIXME: pthread_t is a pointer on Darwin but a long on Linux. |
| 38 | // NULL is the no-thread value on Darwin. Someone needs to check |
| 39 | // on other platforms. We assume 0 works everywhere for now. |
| 40 | __libcpp_thread_id __id_; |
| 41 | |
| 42 | static _LIBCPP_HIDE_FROM_ABI bool |
| 43 | __lt_impl(__thread_id __x, __thread_id __y) _NOEXCEPT { // id==0 is always less than any other thread_id |
| 44 | if (__x.__id_ == 0) |
| 45 | return __y.__id_ != 0; |
| 46 | if (__y.__id_ == 0) |
| 47 | return false; |
| 48 | return __libcpp_thread_id_less(__x.__id_, __y.__id_); |
| 49 | } |
| 50 | |
| 51 | public: |
| 52 | _LIBCPP_HIDE_FROM_ABI __thread_id() _NOEXCEPT : __id_(0) {} |
| 53 | |
| 54 | _LIBCPP_HIDE_FROM_ABI void __reset() { __id_ = 0; } |
| 55 | |
| 56 | friend _LIBCPP_HIDE_FROM_ABI bool operator==(__thread_id __x, __thread_id __y) _NOEXCEPT; |
| 57 | friend _LIBCPP_HIDE_FROM_ABI bool operator<(__thread_id __x, __thread_id __y) _NOEXCEPT; |
| 58 | |
| 59 | template <class _CharT, class _Traits> |
| 60 | friend _LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>& |
| 61 | operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id); |
| 62 | |
| 63 | private: |
| 64 | _LIBCPP_HIDE_FROM_ABI __thread_id(__libcpp_thread_id __id) : __id_(__id) {} |
| 65 | |
| 66 | _LIBCPP_HIDE_FROM_ABI friend __libcpp_thread_id __get_underlying_id(const __thread_id __id) { return __id.__id_; } |
| 67 | |
| 68 | friend __thread_id this_thread::get_id() _NOEXCEPT; |
| 69 | friend class _LIBCPP_EXPORTED_FROM_ABI thread; |
| 70 | friend struct _LIBCPP_TEMPLATE_VIS hash<__thread_id>; |
| 71 | }; |
| 72 | |
| 73 | inline _LIBCPP_HIDE_FROM_ABI bool operator==(__thread_id __x, __thread_id __y) _NOEXCEPT { |
| 74 | // Don't pass id==0 to underlying routines |
| 75 | if (__x.__id_ == 0) |
| 76 | return __y.__id_ == 0; |
| 77 | if (__y.__id_ == 0) |
| 78 | return false; |
| 79 | return __libcpp_thread_id_equal(__x.__id_, __y.__id_); |
| 80 | } |
| 81 | |
| 82 | inline _LIBCPP_HIDE_FROM_ABI bool operator!=(__thread_id __x, __thread_id __y) _NOEXCEPT { return !(__x == __y); } |
| 83 | |
| 84 | inline _LIBCPP_HIDE_FROM_ABI bool operator<(__thread_id __x, __thread_id __y) _NOEXCEPT { |
| 85 | return __thread_id::__lt_impl(__x.__id_, __y.__id_); |
| 86 | } |
| 87 | |
| 88 | inline _LIBCPP_HIDE_FROM_ABI bool operator<=(__thread_id __x, __thread_id __y) _NOEXCEPT { return !(__y < __x); } |
| 89 | inline _LIBCPP_HIDE_FROM_ABI bool operator>(__thread_id __x, __thread_id __y) _NOEXCEPT { return __y < __x; } |
| 90 | inline _LIBCPP_HIDE_FROM_ABI bool operator>=(__thread_id __x, __thread_id __y) _NOEXCEPT { return !(__x < __y); } |
| 91 | |
| 92 | namespace this_thread { |
| 93 | |
| 94 | inline _LIBCPP_HIDE_FROM_ABI __thread_id get_id() _NOEXCEPT { return __libcpp_thread_get_current_id(); } |
| 95 | |
| 96 | } // namespace this_thread |
| 97 | |
| 98 | #endif // !_LIBCPP_HAS_NO_THREADS |
| 99 | |
| 100 | _LIBCPP_END_NAMESPACE_STD |
| 101 | |
| 102 | #endif // _LIBCPP___CXX03___THREAD_ID_H |
| 103 |
Warning: This file is not a C or C++ file. It does not have highlighting.