The StackBufBuilder builds smaller datasets on the stack instead of using malloc. More...

#include <builder.h>

Inheritance diagram for mongo::StackBufBuilder:

Additional Inherited Members
Public Member Functions inherited from mongo::_BufBuilder< StackAllocator >
char *	skip (int n)
	leave room for some stuff later More...

int	len () const

int	getSize () const

void	reserveBytes (int bytes)
	Reserve room for some number of bytes to be claimed at a later time.

void	claimReservedBytes (int bytes)
	Claim an earlier reservation of some number of bytes. More...

Detailed Description

The StackBufBuilder builds smaller datasets on the stack instead of using malloc.

this can be significantly faster for small bufs. However, you can not decouple() the buffer with StackBufBuilder. While designed to be a variable on the stack, if you were to dynamically allocate one, nothing bad would happen. In fact in some circumstances this might make sense, say, embedded in some other object.

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

src/mongo/bson/util/builder.h

Additional Inherited Members

Detailed Description