Shmem Class Reference

A shared memory super class. More...

Inheritance diagram for Shmem:

List of all members.

Public Member Functions
	Shmem (void)
	~Shmem (void)
void *	operator new (size_t size, const std::string &filename)
void	operator delete (void *)

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Detailed Description

A shared memory super class.

Shmem defines a new() operator that attaches to a shared memory segment existing as a memory mapped file. The name of the file is speicified in a parameter to the new() operator. Classes deriving from Shmem and using the parameter based new() operator, will be allocated as a shared memory mapped file. Contents of classes or structs drived from Shmem will survive process restart and even system reboot.

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Constructor & Destructor Documentation

Shmem::Shmem (  void   )  [inline]

Default Constructor

Shmem::~Shmem (  void   )  [inline]

Default Destructor

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Member Function Documentation

void Shmem::operator delete (  void *   )

Detaches from shared memory segment, but does not destroy the memory mapped file.

void* Shmem::operator new (  size_t  size, const std::string &  filename )

new() operator. Parameters: size  - Standard size parameter for a C++ new() operator. Corresponds to the size of the data being allocated. filename  - Name of the file to map to memory in shared space. This is the name of a file on the file system. If it does not exist, it will be created and sized appropriately.

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

• Shmem

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