TAO_Storable_Naming_Context::File_Open_Lock_and_Check Class Reference

Helper class for the TAO_Storable_Naming_Context. More...

#include <Storable_Naming_Context.h>

Collaboration diagram for TAO_Storable_Naming_Context::File_Open_Lock_and_Check:

Public Member Functions
	File_Open_Lock_and_Check (TAO_Storable_Naming_Context *context, const char *mode)
	Constructor - we always need the object which we guard.
	~File_Open_Lock_and_Check (void)
	Destructor.
void	release (void)
	Releases the lock, closes the file, and deletes the I/O stream.
TAO_Storable_Base &	peer (void)
	Returns the stream to read/write on.

Private Types
enum	{ mode_write = 1, mode_read = 2, mode_create = 4 }
	Symbolic values for the flags in the above. More...

Private Member Functions
	File_Open_Lock_and_Check (void)
	Default constructor.

Private Attributes
int	closed_
	A flag to keep us from trying to close things more than once.
TAO_Storable_Naming_Context *	context_
	We need to save the pointer to our parent for cleaning up.
TAO_Storable_Base *	fl_
	The pointer to the actual file I/O (bridge pattern)
int	rwflags_
	The flags that we were opened with.

Detailed Description

Helper class for the TAO_Storable_Naming_Context.

Guard class for the TAO_Storable_Naming_Context. It opens a file for read/write and sets a lock on it. It then checks if the file has changed and re-reads it if it has.

The destructor insures that the lock gets released.

How to use this class:
  File_Open_Lock_and_Check flck(this, name_len > 1 ? "r" : "rw");

Member Enumeration Documentation

anonymous enum

private

Symbolic values for the flags in the above.

Enumerator:

mode_write
mode_read
mode_create

Constructor & Destructor Documentation

TAO_Storable_Naming_Context::File_Open_Lock_and_Check::File_Open_Lock_and_Check	(	TAO_Storable_Naming_Context *	context,
		const char *	mode
	)

Constructor - we always need the object which we guard.

TAO_Storable_Naming_Context::File_Open_Lock_and_Check::~File_Open_Lock_and_Check

(

void

)

Destructor.

TAO_Storable_Naming_Context::File_Open_Lock_and_Check::File_Open_Lock_and_Check ( void  )

private

Default constructor.

Member Function Documentation

TAO_Storable_Base & TAO_Storable_Naming_Context::File_Open_Lock_and_Check::peer

(

void

)

Returns the stream to read/write on.

void TAO_Storable_Naming_Context::File_Open_Lock_and_Check::release

(

void

)

Releases the lock, closes the file, and deletes the I/O stream.

Member Data Documentation

int TAO_Storable_Naming_Context::File_Open_Lock_and_Check::closed_

private

A flag to keep us from trying to close things more than once.

TAO_Storable_Naming_Context* TAO_Storable_Naming_Context::File_Open_Lock_and_Check::context_

private

We need to save the pointer to our parent for cleaning up.

TAO_Storable_Base* TAO_Storable_Naming_Context::File_Open_Lock_and_Check::fl_

private

The pointer to the actual file I/O (bridge pattern)

int TAO_Storable_Naming_Context::File_Open_Lock_and_Check::rwflags_

private

The flags that we were opened with.

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

• Storable_Naming_Context.h
• Storable_Naming_Context.cpp