PLearn::SharedMemory< T > Class Template Reference

#include <Semaphores.h>

Collaboration diagram for PLearn::SharedMemory< T >:

[legend]List of all members.

Public Member Functions
	SharedMemory (int n_items=1)
	allocate shared memory
	SharedMemory (SemId semid)
	access an existing shared memory area
T *	data () const
	convert to address of beginning of shared memory segment
int	size () const
	~SharedMemory ()
	release id and memory
Protected Attributes
SemId	id
	shared memory id provided by the operating system at construction
bool	owner
	true if this process is the owner of the shared memory, i.e
int	size_
	in number of bytes
T *	segment
	allocated segment

template<class T>
class PLearn::SharedMemory< T >

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Constructor & Destructor Documentation

template<class T> PLearn::SharedMemory< T >::SharedMemory (  int  n_items = 1  )  [inline]

allocate shared memory Definition at line 176 of file Semaphores.h. References PLearn::SharedMemory< T >::owner, PLERROR, PLearn::SharedMemory< T >::segment, and PLearn::SharedMemory< T >::size_.

template<class T> PLearn::SharedMemory< T >::SharedMemory (  SemId  semid  )  [inline]

access an existing shared memory area Definition at line 189 of file Semaphores.h. References PLearn::SharedMemory< T >::id, PLearn::SharedMemory< T >::owner, PLERROR, PLearn::SharedMemory< T >::segment, and PLearn::SharedMemory< T >::size_.

template<class T> PLearn::SharedMemory< T >::~SharedMemory (   )  [inline]

release id and memory Definition at line 205 of file Semaphores.h. References PLearn::endl(), PLearn::SharedMemory< T >::owner, PLERROR, and PLearn::SharedMemory< T >::segment.

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Member Function Documentation

template<class T> T* PLearn::SharedMemory< T >::data (   )  const [inline]

convert to address of beginning of shared memory segment Definition at line 200 of file Semaphores.h. References PLearn::SharedMemory< T >::segment.

template<class T> int PLearn::SharedMemory< T >::size (   )  const [inline]

Definition at line 202 of file Semaphores.h. References PLearn::SharedMemory< T >::size_.

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Member Data Documentation

template<class T> SemId PLearn::SharedMemory< T >::id [protected]

shared memory id provided by the operating system at construction Definition at line 169 of file Semaphores.h. Referenced by PLearn::SharedMemory< T >::SharedMemory().

template<class T> bool PLearn::SharedMemory< T >::owner [protected]

true if this process is the owner of the shared memory, i.e the shared memory will be released with this object is deleted Definition at line 170 of file Semaphores.h. Referenced by PLearn::SharedMemory< T >::SharedMemory(), and PLearn::SharedMemory< T >::~SharedMemory().

template<class T> T* PLearn::SharedMemory< T >::segment [protected]

allocated segment Definition at line 173 of file Semaphores.h. Referenced by PLearn::SharedMemory< T >::data(), PLearn::SharedMemory< T >::SharedMemory(), and PLearn::SharedMemory< T >::~SharedMemory().

template<class T> int PLearn::SharedMemory< T >::size_ [protected]

in number of bytes Definition at line 172 of file Semaphores.h. Referenced by PLearn::SharedMemory< T >::SharedMemory(), and PLearn::SharedMemory< T >::size().

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

• Semaphores.h

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