org.jikesrvm.mm.mmtk

Class Strings

java.lang.Object

org.mmtk.vm.Strings

org.jikesrvm.mm.mmtk.Strings

public final class Strings
extends Strings

Constructor Summary

Constructors

Constructor and Description
Strings()

Method Summary

Modifier and Type	Method and Description
int	copyStringToChars(String str, char[] dst, int dstBegin, int dstEnd) Copies characters from the string into the character array.
private int	naiveCopyStringToChars(String str, char[] dst, int dstBegin, int dstEnd) Copies characters from the string into the character array.
private int	safeCopyStringToChars(String str, char[] dst, int dstBegin, int dstEnd) Copies characters from the string into the character array.
void	write(char[] c, int len) Log a message.
void	writeThreadId(char[] c, int len) Log a thread identifier and a message.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Strings

public Strings()

Method Detail

write

public void write(char[] c,
                  int len)

Description copied from class: Strings

Log a message.

Specified by:

write in class Strings

Parameters:

c - character array with message starting at index 0

len - number of characters in message

writeThreadId

public void writeThreadId(char[] c,
                          int len)

Description copied from class: Strings

Log a thread identifier and a message.

Specified by:

writeThreadId in class Strings

Parameters:

c - character array with message starting at index 0

len - number of characters in message

copyStringToChars

public int copyStringToChars(String str,
                             char[] dst,
                             int dstBegin,
                             int dstEnd)

Description copied from class: Strings

Copies characters from the string into the character array. Thread switching is disabled during this method's execution.

TODO: There are special memory management semantics here that someone should document.

Specified by:

copyStringToChars in class Strings

Parameters:

str - the source string

dst - the destination array

dstBegin - the start offset in the destination array

dstEnd - the index after the last character in the destination to copy to

Returns:

the number of characters copied.

safeCopyStringToChars

private int safeCopyStringToChars(String str,
                                  char[] dst,
                                  int dstBegin,
                                  int dstEnd)

Copies characters from the string into the character array. Thread switching is disabled during this method's execution.

TODO: There are special memory management semantics here that someone should document.

Parameters:

str - the source string

dst - the destination array

dstBegin - the start offset in the destination array

dstEnd - the index after the last character in the destination to copy to

Returns:

the number of characters copied.

naiveCopyStringToChars

private int naiveCopyStringToChars(String str,
                                   char[] dst,
                                   int dstBegin,
                                   int dstEnd)

Copies characters from the string into the character array. Thread switching is disabled during this method's execution.

Parameters:

str - the source string

dst - the destination array

dstBegin - the start offset in the destination array

dstEnd - the index after the last character in the destination to copy to

Returns:

the number of characters copied.