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casacore::AlignMemory Class Reference

Referenced counted pointer for constant data. More...

#include <AlignMemory.h>

Public Member Functions

 AlignMemory (uInt alignment=0)
 Default alignment is none. More...
uInt alignment () const
 Get the alignment. More...
void * alloc (size_t size) const
 Allocate the given amount of memory with the correct alignment. More...

Private Attributes

uInt itsAlign

Detailed Description

Referenced counted pointer for constant data.

Intended use:

Public interface

Review Status

Reviewed By:
Friso Olnon
Date Reviewed:
Test programs:


This class is Counted because it is reference counted.


This class implements a reference counting mechanism. It allows CountedPtrs to be passed around freely, incrementing or decrementing the reference count as needed when one CountedPtr is assigned to another. When the reference count reaches zero the internal storage is deleted by default, but this behavior can be overridden.

Internally the class uses std::shared_ptr to be thread-safe. Note that tr1 is used if the compiler does not support C++11 yet.


Reference counting

Definition at line 61 of file AlignMemory.h.

Constructor & Destructor Documentation

casacore::AlignMemory::AlignMemory ( uInt  alignment = 0)

Default alignment is none.

Definition at line 66 of file AlignMemory.h.

Member Function Documentation

uInt casacore::AlignMemory::alignment ( ) const

Get the alignment.

Definition at line 71 of file AlignMemory.h.

References itsAlign.

void* casacore::AlignMemory::alloc ( size_t  size) const

Allocate the given amount of memory with the correct alignment.

If alignment < sizeof(void*), malloc will be used, otherwise posix_memalign. The alignment must be a power of 2 for posix_memalign to succeed. It can be freed with the normal free.

Member Data Documentation

uInt casacore::AlignMemory::itsAlign

Definition at line 81 of file AlignMemory.h.

Referenced by alignment().

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