heavyai::allocator::detail::FastAllocator< T > Class Template Reference

#include <FastAllocator.h>

Inheritance diagram for heavyai::allocator::detail::FastAllocator< T >:

Collaboration diagram for heavyai::allocator::detail::FastAllocator< T >:

Public Member Functions
	FastAllocator ()
	FastAllocator (T *buffer, size_t capacity)
	FastAllocator (FastAllocator const &)=delete
	FastAllocator (FastAllocator &&)=delete
FastAllocator &	operator= (FastAllocator const &)=delete
FastAllocator &	operator= (FastAllocator &&rhs)
T *	allocate (size_t const n)
size_t	available () const
size_t	capacity () const
Public Member Functions inherited from SimpleAllocator
virtual	~SimpleAllocator ()=default

Protected Member Functions
void	reset ()

Protected Attributes
T *	buffer_
size_t	capacity_
size_t	size_
std::mutex	mutex_

Detailed Description

template<typename T>
class heavyai::allocator::detail::FastAllocator< T >

Definition at line 48 of file FastAllocator.h.

Constructor & Destructor Documentation

template<typename T >

heavyai::allocator::detail::FastAllocator< T >::FastAllocator ( )

inline

Definition at line 50 of file FastAllocator.h.

: buffer_(nullptr), capacity_(0), size_(0) {}

template<typename T >

heavyai::allocator::detail::FastAllocator< T >::FastAllocator ( T *  buffer, size_t  capacity  )

inline

Definition at line 51 of file FastAllocator.h.

      : buffer_(buffer), capacity_(capacity), size_(0) {}

template<typename T >

heavyai::allocator::detail::FastAllocator< T >::FastAllocator ( FastAllocator< T > const &  )

delete

template<typename T >

heavyai::allocator::detail::FastAllocator< T >::FastAllocator ( FastAllocator< T > &&  )

delete

Member Function Documentation

template<typename T >

T* heavyai::allocator::detail::FastAllocator< T >::allocate ( size_t const  n )

inlinevirtual

Implements SimpleAllocator.

Definition at line 65 of file FastAllocator.h.

References heavyai::allocator::detail::FastAllocator< T >::available(), heavyai::allocator::detail::FastAllocator< T >::buffer_, heavyai::allocator::detail::FastAllocator< T >::capacity_, CHECK, heavyai::allocator::detail::FastAllocator< T >::mutex_, anonymous_namespace{Utm.h}::n, heavyai::allocator::detail::outOfMemoryError(), heavyai::allocator::detail::FastAllocator< T >::size_, and heavydb.dtypes::T.

                              {
    CHECK(n);
    std::lock_guard<std::mutex> lock_guard(mutex_);
    if (n <= available()) {
      T* const ptr = buffer_ + size_;
      size_ += n;
      return ptr;
    }
    throw outOfMemoryError(n, available(), capacity_);
  }

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template<typename T >

size_t heavyai::allocator::detail::FastAllocator< T >::available ( ) const

inline

Definition at line 76 of file FastAllocator.h.

References heavyai::allocator::detail::FastAllocator< T >::capacity_, and heavyai::allocator::detail::FastAllocator< T >::size_.

Referenced by heavyai::allocator::detail::FastAllocator< T >::allocate().

{ return capacity_ - size_; }  // number of available elements

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template<typename T >

size_t heavyai::allocator::detail::FastAllocator< T >::capacity ( ) const

inline

Definition at line 77 of file FastAllocator.h.

References heavyai::allocator::detail::FastAllocator< T >::capacity_.

{ return capacity_; }           // number of reserved elements

template<typename T >

FastAllocator& heavyai::allocator::detail::FastAllocator< T >::operator= ( FastAllocator< T > const &  )

delete

template<typename T >

FastAllocator& heavyai::allocator::detail::FastAllocator< T >::operator= ( FastAllocator< T > &&  rhs )

inline

Definition at line 56 of file FastAllocator.h.

References heavyai::allocator::detail::FastAllocator< T >::buffer_, heavyai::allocator::detail::FastAllocator< T >::capacity_, and heavyai::allocator::detail::FastAllocator< T >::size_.

                                                {
    buffer_ = rhs.buffer_;
    capacity_ = rhs.capacity_;
    size_ = rhs.size_;
    rhs.reset();
    return *this;
  }

template<typename T >

void heavyai::allocator::detail::FastAllocator< T >::reset ( )

inlineprotected

Definition at line 80 of file FastAllocator.h.

References heavyai::allocator::detail::FastAllocator< T >::buffer_, heavyai::allocator::detail::FastAllocator< T >::capacity_, and heavyai::allocator::detail::FastAllocator< T >::size_.

               {
    buffer_ = nullptr;
    capacity_ = 0u;
    size_ = 0u;
  }

Member Data Documentation

template<typename T >

T* heavyai::allocator::detail::FastAllocator< T >::buffer_

protected

Definition at line 86 of file FastAllocator.h.

Referenced by heavyai::allocator::detail::FastAllocator< T >::allocate(), heavyai::allocator::detail::FastAllocator< T >::operator=(), and heavyai::allocator::detail::FastAllocator< T >::reset().

template<typename T >

size_t heavyai::allocator::detail::FastAllocator< T >::capacity_

protected

Definition at line 87 of file FastAllocator.h.

Referenced by heavyai::allocator::detail::FastAllocator< T >::allocate(), heavyai::allocator::detail::FastAllocator< T >::available(), heavyai::allocator::detail::FastAllocator< T >::capacity(), heavyai::allocator::detail::FastAllocator< T >::operator=(), and heavyai::allocator::detail::FastAllocator< T >::reset().

template<typename T >

std::mutex heavyai::allocator::detail::FastAllocator< T >::mutex_

mutableprotected

Definition at line 89 of file FastAllocator.h.

Referenced by heavyai::allocator::detail::FastAllocator< T >::allocate().

template<typename T >

size_t heavyai::allocator::detail::FastAllocator< T >::size_

protected

Definition at line 88 of file FastAllocator.h.

Referenced by heavyai::allocator::detail::FastAllocator< T >::allocate(), heavyai::allocator::detail::FastAllocator< T >::available(), heavyai::allocator::detail::FastAllocator< T >::operator=(), and heavyai::allocator::detail::FastAllocator< T >::reset().

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/DataMgr/Allocators/FastAllocator.h