139 lines
2.7 KiB
C++
139 lines
2.7 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: TLSView.cpp
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Date: 2021-6-12
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Author: Reece
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***/
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#include <Source/RuntimeInternal.hpp>
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#include "TLSView.hpp"
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namespace Aurora::Threading::Threads
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{
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void TLSViewImpl::Remove(AuUInt64 key)
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{
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AU_LOCK_GUARD(lock_);
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auto a = tls_.find(key);
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if (a == tls_.end())
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{
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return;
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}
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const auto &handler = a->second.second;
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if (handler)
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{
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handler(a->second.first);
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}
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tls_.erase(a);
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}
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TLSViewImpl::~TLSViewImpl()
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{
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for (const auto &itr : tls_)
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{
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const auto &handler = itr.second.second;
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if (handler)
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{
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handler(itr.second.first);
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}
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}
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tls_.clear();
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}
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void *TLSViewImpl::GetTLS(AuUInt64 key, AuMach length, bool noAutoCreate)
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{
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AU_LOCK_GUARD(lock_);
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AuPair<void*, TlsCb>*value;
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if (!length)
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{
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return nullptr;
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}
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if (!AuTryFind(tls_, key, value))
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{
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if (noAutoCreate)
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{
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return nullptr;
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}
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auto buf = Memory::ZAlloc<void *>(length);
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if (!buf)
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{
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return nullptr;
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}
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auto ok = AuTryInsertNoEnd(tls_, AuMakePair(key, AuMakePair(buf, TlsCb {})));
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if (!ok)
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{
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Memory::Free(buf);
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return nullptr;
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}
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ConsiderRehash();
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return buf;
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}
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return value->first;
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}
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void *TLSViewImpl::InitTLS(AuUInt64 key, AuMach length, const TlsCb &init, const TlsCb &deinit)
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{
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AU_LOCK_GUARD(lock_);
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AuPair<void*, TlsCb>*value;
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if (!length)
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{
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return nullptr;
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}
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if (AuTryFind(tls_, key, value))
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{
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return value->first;
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}
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auto buf = Memory::ZAlloc<void *>(length);
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if (!buf)
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{
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return nullptr;
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}
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TlsCb deinitcb = deinit;
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auto ok = AuTryInsertNoEnd(tls_, AuMakePair(key, AuMakePair(buf, deinitcb)));
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if (!ok)
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{
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Memory::Free(buf);
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return nullptr;
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}
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ConsiderRehash();
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if (init)
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{
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init(buf);
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}
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return buf;
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}
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void TLSViewImpl::ConsiderRehash()
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{
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try
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{
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// prevent Add, Remove, Add, Remove stalls
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fence_++;
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if ((fence_ % 10) == 0)
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{
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tls_.rehash(tls_.size());
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}
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}
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catch (...)
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{
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}
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}
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} |