WvGdbmAlloc Class Reference

#include <wvgdbmlist.h>

Collaboration diagram for WvGdbmAlloc:

[legend]List of all members.

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Detailed Description

A class based on WvGdbmHash that lets you store WvBufs and auto-assign them Index values as keys.

This is convenient for implementing various data structures in the on-disk hash, since you can use Index values wherever an in-memory structure would use a pointer.

NOTE: Index values <= 0 have a special meaning, and will never be assigned automatically. WvGdbmAlloc uses Index # -1 itself as the beginning of the FREELIST. The others you can use as you wish.

Definition at line 22 of file wvgdbmlist.h.

Public Types
typedef int32_t	Index
typedef WvGdbmHash< Index, WvBuf >	LinkHash
enum	{ FREELIST = -1 }
Public Member Functions
	WvGdbmAlloc (WvStringParm filename)
void	zap ()
Index	alloc ()
void	unalloc (Index i)
Public Attributes
LinkHash	hash

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Member Typedef Documentation

typedef int32_t WvGdbmAlloc::Index

Definition at line 27 of file wvgdbmlist.h. Referenced by alloc(), and unalloc().

typedef WvGdbmHash<Index, WvBuf> WvGdbmAlloc::LinkHash

Definition at line 28 of file wvgdbmlist.h.

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Member Enumeration Documentation

anonymous enum

Enumeration values: FREELIST  Definition at line 25 of file wvgdbmlist.h.

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Constructor & Destructor Documentation

WvGdbmAlloc::WvGdbmAlloc (  WvStringParm  filename  )  [inline]

Definition at line 32 of file wvgdbmlist.h. References hash, and WvStringParm.

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Member Function Documentation

Index WvGdbmAlloc::alloc (   )  [inline]

Definition at line 58 of file wvgdbmlist.h. References WvGdbmHash< K, D >::exists(), FREELIST, hash, and Index. Referenced by WvGdbmList< T >::add_after().

void WvGdbmAlloc::unalloc (  Index  i  )  [inline]

Definition at line 73 of file wvgdbmlist.h. References FREELIST, and Index. Referenced by WvGdbmList< T >::unlink_after().

void WvGdbmAlloc::zap (   )  [inline]

Definition at line 52 of file wvgdbmlist.h. References FREELIST, hash, and WvGdbmHashBase::zap(). Referenced by WvGdbmList< T >::zap().

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Member Data Documentation

LinkHash WvGdbmAlloc::hash

Definition at line 30 of file wvgdbmlist.h. Referenced by alloc(), WvGdbmAlloc(), and zap().

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

• wvgdbmlist.h

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