Package ghidra.util

Interface ByteBufferUtils

public interface ByteBufferUtils

Some utilities for manipulating a ByteBuffer

Method Summary

Static Methods

Modifier and Type	Method	Description
static boolean	maskedEquals(ByteBuffer mask, ByteBuffer a, ByteBuffer b)	Checks for equality, with a mask applied
static ByteBuffer	resize(ByteBuffer buf, int capacity)	Resize a write-mode buffer
static ByteBuffer	upsize(ByteBuffer buf)	Resize a write-mode buffer to twice its current capacity

Method Details

resize

static ByteBuffer resize(ByteBuffer buf,
 int capacity)

Resize a write-mode buffer

This preserves the buffer contents

Parameters:

buf - the buffer

capacity - the new capacity, greater or equal to the buffer's limit

Returns:

the new buffer

upsize

static ByteBuffer upsize(ByteBuffer buf)

Resize a write-mode buffer to twice its current capacity

This preserves the buffer contents

Parameters:

buf - the buffer

Returns:

the new buffer

maskedEquals

static boolean maskedEquals(ByteBuffer mask,
 ByteBuffer a,
 ByteBuffer b)

Checks for equality, with a mask applied

This considers the entire contents of both buffers without regard for position or limit. Both buffers must have equal capacities to be considered equal. The mask, if given, must have capacity equal to that of the first buffer a or an exception is thrown.

Parameters:

mask - a buffer containing the mask, or null to match all bytes exactly

a - the first buffer

b - the second buffer

Returns:

true if matches, false otherwise

Throws:

IllegalArgumentException - if mask and a have unequal capacities