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dindexer/include/helpers/implem/AutomemBase.inl

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2016-02-05 20:01:51 +00:00
/* Copyright 2015, 2016, Michele Santullo
* This file is part of "dindexer".
*
* "dindexer" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "dindexer" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "dindexer". If not, see <http://www.gnu.org/licenses/>.
*/
namespace dinhelp {
namespace {
#if defined(ASSERTIONSENABLED)
const char g_guard = 0xAB;
#endif
} //unnamed namespace
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, size_t S, typename A>
AutomemRawBase_heap<T, S, A>::AutomemRawBase_heap() {
#if !defined(NDEBUG)
m_localMem = nullptr;
#endif
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, size_t S, typename A>
AutomemRawBase_heap<T, S, A>::AutomemRawBase_heap (AutomemRawBase_heap&& parOther) {
#if !defined(NDEBUG)
m_localMem = nullptr;
#endif
this->swap(parOther);
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, size_t S, typename A>
T* AutomemRawBase_heap<T, S, A>::AllocMemory() {
#if !defined(NDEBUG)
Assert(nullptr == m_localMem);
#endif
m_localMem = A().allocate(S);
#if defined(ASSERTIONSENABLED)
assert(reinterpret_cast<PTR_INT_TYPE>(m_localMem) % alignof(T) == 0); //Make sure alignment is correct
std::fill(
reinterpret_cast<char*>(&m_localMem[0]),
reinterpret_cast<char*>(&m_localMem[0]) + sizeof(m_localMem),
g_guard
);
#endif
return m_localMem;
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, size_t S, typename A>
void AutomemRawBase_heap<T, S, A>::FreeMemory() noexcept {
#if !defined(NDEBUG)
Assert(nullptr != m_localMem);
#endif
A().deallocate(m_localMem, S);
#if !defined(NDEBUG)
m_localMem = nullptr;
#endif
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, size_t S, typename A>
template <typename... Args>
T* AutomemRawBase_heap<T, S, A>::GetNewT (size_t parIndex, Args&&... parArgs) {
assert(parIndex < S);
T* const location = m_localMem + parIndex;
#if defined(ASSERTIONSENABLED)
assert(reinterpret_cast<PTR_INT_TYPE>(location) % alignof(T) == 0);
assert(g_guard == *reinterpret_cast<const char*>(location));
#endif
return new(location) T(std::forward<Args...>(parArgs)...);
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, size_t S>
T* AutomemRawBase_stack<T, S>::AllocMemory() {
#if defined(ASSERTIONSENABLED)
assert(reinterpret_cast<PTR_INT_TYPE>(m_localMem) % alignof(T) == 0); //Make sure alignment is correct
std::fill(
reinterpret_cast<char*>(&m_localMem[0]),
reinterpret_cast<char*>(&m_localMem[0]) + sizeof(m_localMem),
g_guard
);
#endif
return reinterpret_cast<T*>(&m_localMem[0]);
}
///-------------------------------------------------------------------------
///-------------------------------------------------------------------------
template <typename T, size_t S>
template <typename... Args>
T* AutomemRawBase_stack<T, S>::GetNewT (size_t parIndex, Args&&... parArgs) {
assert(parIndex < S);
auto* const location = &m_localMem[parIndex];
#if defined(ASSERTIONSENABLED)
assert(reinterpret_cast<PTR_INT_TYPE>(location) % alignof(T) == 0);
assert(g_guard == *reinterpret_cast<const char*>(location));
#endif
return new(location) T(std::forward<Args...>(parArgs)...);
}
} //namespace dinhelp