c_threads.h

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// Copyright (c) 2019-2022, The Monero Project
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/* Brain-dead simple portability wrapper over thread APIs for C */
#pragma once
 
#ifdef _WIN32
 
#include <windows.h>
 
#define CTHR_RWLOCK_TYPE    SRWLOCK
#define CTHR_RWLOCK_INIT    SRWLOCK_INIT
#define CTHR_RWLOCK_LOCK_WRITE(x)   AcquireSRWLockExclusive(&x)
#define CTHR_RWLOCK_UNLOCK_WRITE(x) ReleaseSRWLockExclusive(&x)
#define CTHR_RWLOCK_LOCK_READ(x)    AcquireSRWLockShared(&x)
#define CTHR_RWLOCK_UNLOCK_READ(x)  ReleaseSRWLockShared(&x)
#define CTHR_RWLOCK_TRYLOCK_READ(x) TryAcquireSRWLockShared(&x)
 
#define CTHR_THREAD_TYPE    HANDLE
#define CTHR_THREAD_RTYPE   unsigned __stdcall
#define CTHR_THREAD_RETURN  _endthreadex(0); return 0;
#define CTHR_THREAD_CREATE(thr, func, arg)  ((thr = (HANDLE)_beginthreadex(0, 0, func, arg, 0, 0)) != 0L)
#define CTHR_THREAD_JOIN(thr)           do { WaitForSingleObject(thr, INFINITE); CloseHandle(thr); } while(0)
#define CTHR_THREAD_CLOSE(thr)          CloseHandle((HANDLE)thr);
 
#else
 
#include <pthread.h>
 
#define CTHR_RWLOCK_TYPE    pthread_rwlock_t
#define CTHR_RWLOCK_INIT    PTHREAD_RWLOCK_INITIALIZER
#define CTHR_RWLOCK_LOCK_WRITE(x)   pthread_rwlock_wrlock(&x)
#define CTHR_RWLOCK_UNLOCK_WRITE(x) pthread_rwlock_unlock(&x)
#define CTHR_RWLOCK_LOCK_READ(x)    pthread_rwlock_rdlock(&x)
#define CTHR_RWLOCK_UNLOCK_READ(x)  pthread_rwlock_unlock(&x)
#define CTHR_RWLOCK_TRYLOCK_READ(x) (pthread_rwlock_tryrdlock(&x) == 0)
 
#define CTHR_THREAD_TYPE pthread_t
#define CTHR_THREAD_RTYPE   void *
#define CTHR_THREAD_RETURN  return NULL
#define CTHR_THREAD_CREATE(thr, func, arg)  (pthread_create(&thr, NULL, func, arg) == 0)
#define CTHR_THREAD_JOIN(thr)           pthread_join(thr, NULL)
#define CTHR_THREAD_CLOSE(thr)
 
#endif