зеркало из https://github.com/microsoft/STL.git
159 строки
5.1 KiB
C++
159 строки
5.1 KiB
C++
// xthreads.h internal header
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// Copyright (c) Microsoft Corporation.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#pragma once
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#ifndef _THR_XTHREADS_H
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#define _THR_XTHREADS_H
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#include <yvals_core.h>
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#if _STL_COMPILER_PREPROCESSOR
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#include <limits.h>
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#include <xtimec.h>
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#pragma pack(push, _CRT_PACKING)
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#pragma warning(push, _STL_WARNING_LEVEL)
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#pragma warning(disable : _STL_DISABLED_WARNINGS)
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_STL_DISABLE_CLANG_WARNINGS
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#pragma push_macro("new")
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#undef new
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_EXTERN_C
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using _Thrd_id_t = unsigned int;
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struct _Thrd_t { // thread identifier for Win32
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void* _Hnd; // Win32 HANDLE
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_Thrd_id_t _Id;
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};
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// Size and alignment for _Mtx_internal_imp_t and _Cnd_internal_imp_t
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#ifdef _CRT_WINDOWS
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#ifdef _WIN64
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#define _Mtx_internal_imp_size 32
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#define _Mtx_internal_imp_alignment 8
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#define _Cnd_internal_imp_size 16
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#define _Cnd_internal_imp_alignment 8
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#else // _WIN64
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#define _Mtx_internal_imp_size 20
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#define _Mtx_internal_imp_alignment 4
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#define _Cnd_internal_imp_size 8
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#define _Cnd_internal_imp_alignment 4
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#endif // _WIN64
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#else // _CRT_WINDOWS
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#ifdef _WIN64
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#define _Mtx_internal_imp_size 80
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#define _Mtx_internal_imp_alignment 8
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#define _Cnd_internal_imp_size 72
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#define _Cnd_internal_imp_alignment 8
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#else // _WIN64
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#define _Mtx_internal_imp_size 48
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#define _Mtx_internal_imp_alignment 4
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#define _Cnd_internal_imp_size 40
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#define _Cnd_internal_imp_alignment 4
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#endif // _WIN64
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#endif // _CRT_WINDOWS
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using _Mtx_t = struct _Mtx_internal_imp_t*;
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using _Cnd_t = struct _Cnd_internal_imp_t*;
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enum { _Thrd_success, _Thrd_nomem, _Thrd_timedout, _Thrd_busy, _Thrd_error };
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// threads
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_CRTIMP2_PURE int __cdecl _Thrd_detach(_Thrd_t);
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_CRTIMP2_PURE int __cdecl _Thrd_join(_Thrd_t, int*);
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_CRTIMP2_PURE void __cdecl _Thrd_sleep(const xtime*);
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_CRTIMP2_PURE void __cdecl _Thrd_yield();
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_CRTIMP2_PURE unsigned int __cdecl _Thrd_hardware_concurrency();
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_CRTIMP2_PURE _Thrd_id_t __cdecl _Thrd_id();
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// mutexes
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enum { // mutex types
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_Mtx_plain = 0x01,
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_Mtx_try = 0x02,
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_Mtx_timed = 0x04,
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_Mtx_recursive = 0x100
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};
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_CRTIMP2_PURE int __cdecl _Mtx_init(_Mtx_t*, int);
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_CRTIMP2_PURE void __cdecl _Mtx_destroy(_Mtx_t);
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_CRTIMP2_PURE void __cdecl _Mtx_init_in_situ(_Mtx_t, int);
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_CRTIMP2_PURE void __cdecl _Mtx_destroy_in_situ(_Mtx_t);
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_CRTIMP2_PURE int __cdecl _Mtx_current_owns(_Mtx_t);
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_CRTIMP2_PURE int __cdecl _Mtx_lock(_Mtx_t);
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_CRTIMP2_PURE int __cdecl _Mtx_trylock(_Mtx_t);
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_CRTIMP2_PURE int __cdecl _Mtx_timedlock(_Mtx_t, const xtime*);
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_CRTIMP2_PURE int __cdecl _Mtx_unlock(_Mtx_t);
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_CRTIMP2_PURE void* __cdecl _Mtx_getconcrtcs(_Mtx_t);
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_CRTIMP2_PURE void __cdecl _Mtx_clear_owner(_Mtx_t);
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_CRTIMP2_PURE void __cdecl _Mtx_reset_owner(_Mtx_t);
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// shared mutex
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// these declarations must be in sync with those in sharedmutex.cpp
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using _Smtx_t = void*;
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void __cdecl _Smtx_lock_exclusive(_Smtx_t*);
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void __cdecl _Smtx_lock_shared(_Smtx_t*);
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int __cdecl _Smtx_try_lock_exclusive(_Smtx_t*);
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int __cdecl _Smtx_try_lock_shared(_Smtx_t*);
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void __cdecl _Smtx_unlock_exclusive(_Smtx_t*);
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void __cdecl _Smtx_unlock_shared(_Smtx_t*);
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// condition variables
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_CRTIMP2_PURE int __cdecl _Cnd_init(_Cnd_t*);
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_CRTIMP2_PURE void __cdecl _Cnd_destroy(_Cnd_t);
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_CRTIMP2_PURE void __cdecl _Cnd_init_in_situ(_Cnd_t);
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_CRTIMP2_PURE void __cdecl _Cnd_destroy_in_situ(_Cnd_t);
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_CRTIMP2_PURE int __cdecl _Cnd_wait(_Cnd_t, _Mtx_t);
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_CRTIMP2_PURE int __cdecl _Cnd_timedwait(_Cnd_t, _Mtx_t, const xtime*);
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_CRTIMP2_PURE int __cdecl _Cnd_broadcast(_Cnd_t);
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_CRTIMP2_PURE int __cdecl _Cnd_signal(_Cnd_t);
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_CRTIMP2_PURE void __cdecl _Cnd_register_at_thread_exit(_Cnd_t, _Mtx_t, int*);
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_CRTIMP2_PURE void __cdecl _Cnd_unregister_at_thread_exit(_Mtx_t);
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_CRTIMP2_PURE void __cdecl _Cnd_do_broadcast_at_thread_exit();
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_END_EXTERN_C
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_STD_BEGIN
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enum { // constants for error codes
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_DEVICE_OR_RESOURCE_BUSY,
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_INVALID_ARGUMENT,
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_NO_SUCH_PROCESS,
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_NOT_ENOUGH_MEMORY,
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_OPERATION_NOT_PERMITTED,
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_RESOURCE_DEADLOCK_WOULD_OCCUR,
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_RESOURCE_UNAVAILABLE_TRY_AGAIN
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};
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[[noreturn]] _CRTIMP2_PURE void __cdecl _Throw_C_error(int _Code);
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[[noreturn]] _CRTIMP2_PURE void __cdecl _Throw_Cpp_error(int _Code);
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inline int _Check_C_return(int _Res) { // throw exception on failure
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if (_Res != _Thrd_success) {
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_Throw_C_error(_Res);
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}
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return _Res;
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}
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_STD_END
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#pragma pop_macro("new")
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_STL_RESTORE_CLANG_WARNINGS
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#pragma warning(pop)
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#pragma pack(pop)
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#endif // _STL_COMPILER_PREPROCESSOR
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#endif // _THR_XTHREADS_H
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/*
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* This file is derived from software bearing the following
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* restrictions:
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*
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* (c) Copyright William E. Kempf 2001
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*
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* Permission to use, copy, modify, distribute and sell this
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* software and its documentation for any purpose is hereby
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* granted without fee, provided that the above copyright
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* notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting
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* documentation. William E. Kempf makes no representations
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* about the suitability of this software for any purpose.
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* It is provided "as is" without express or implied warranty.
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*/
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