Arena Class Reference

#include <ArenaAllocator.h>

Collaboration diagram for Arena:

Public Member Functions
	Arena (size_t min_block_size=1UL<< 32, size_t size_limit=0)
	~Arena ()
void *	allocate (size_t num_bytes)
void *	allocateAndZero (const size_t size)

Private Attributes
SysAllocator< void >	allocator_
std::vector< void * >	allocations_

Detailed Description

A naive allocator which calls malloc and maintains a list of allocate pointers for freeing. For development and testing only, where folly is not available. Not for production use.

Definition at line 84 of file ArenaAllocator.h.

Constructor & Destructor Documentation

Arena()

Arena::Arena ( size_t  min_block_size = 1UL << 32, size_t  size_limit = 0  )

inlineexplicit

Definition at line 86 of file ArenaAllocator.h.

{}

~Arena()

Arena::~Arena ( )

inline

Definition at line 88 of file ArenaAllocator.h.

           {
    for (auto ptr : allocations_) {
      allocator_.deallocate(ptr, 0);
    }
  }

Member Function Documentation

allocate()

void* Arena::allocate ( size_t  num_bytes )

inline

Definition at line 94 of file ArenaAllocator.h.

                                   {
    auto ret = allocator_.allocate(num_bytes);
    allocations_.push_back(ret);
    return ret;
  }

allocateAndZero()

void* Arena::allocateAndZero ( const size_t  size )

inline

Definition at line 100 of file ArenaAllocator.h.

References SysAllocator< T >::allocate().

                                           {
    auto ret = allocate(size);
    std::memset(ret, 0, size);
    return ret;
  }

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Member Data Documentation

allocations_

std::vector<void*> Arena::allocations_

private

Definition at line 108 of file ArenaAllocator.h.

allocator_

SysAllocator<void> Arena::allocator_

private

Definition at line 107 of file ArenaAllocator.h.

---

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

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