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58 lines
2.7 KiB
C
58 lines
2.7 KiB
C
// Copyright (c) 2019, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/* Brain-dead simple portability wrapper over thread APIs for C */
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#pragma once
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#ifdef _WIN32
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#include <windows.h>
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#define CTHR_MUTEX_TYPE HANDLE
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#define CTHR_MUTEX_INIT NULL
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#define CTHR_MUTEX_LOCK(x) do { if (x == NULL) { \
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HANDLE p = CreateMutex(NULL, FALSE, NULL); \
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if (InterlockedCompareExchangePointer((PVOID*)&x, (PVOID)p, NULL) != NULL) \
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CloseHandle(p); \
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} WaitForSingleObject(x, INFINITE); } while(0)
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#define CTHR_MUTEX_UNLOCK(x) ReleaseMutex(x)
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#define CTHR_THREAD_TYPE HANDLE
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#define CTHR_THREAD_RTYPE void
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#define CTHR_THREAD_RETURN return
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#define CTHR_THREAD_CREATE(thr, func, arg) thr = (HANDLE)_beginthread(func, 0, arg)
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#define CTHR_THREAD_JOIN(thr) WaitForSingleObject(thr, INFINITE)
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#else
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#include <pthread.h>
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#define CTHR_MUTEX_TYPE pthread_mutex_t
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#define CTHR_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
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#define CTHR_MUTEX_LOCK(x) pthread_mutex_lock(&x)
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#define CTHR_MUTEX_UNLOCK(x) pthread_mutex_unlock(&x)
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#define CTHR_THREAD_TYPE pthread_t
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#define CTHR_THREAD_RTYPE void *
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#define CTHR_THREAD_RETURN return NULL
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#define CTHR_THREAD_CREATE(thr, func, arg) pthread_create(&thr, NULL, func, arg)
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#define CTHR_THREAD_JOIN(thr) pthread_join(thr, NULL)
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#endif
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