sun.jvm.hotspot.debugger

Class InputLexer

java.lang.Object

sun.jvm.hotspot.debugger.InputLexer

public class InputLexer
extends java.lang.Object

InputLexer is the lexer through which the current set of debuggers see the debug server. It provides the ability to read all of the types the debuggers are interested in. All read operations are blocking.

Constructor Summary

Constructors

Constructor and Description
InputLexer(java.io.BufferedInputStream in)

Method Summary

Modifier and Type	Method and Description
void	close()
long	parseAddress() Parses an address in the form 0x12345678 in US-ASCII encoding on the input stream
boolean	parseBoolean() Parses a boolean (really either a 0 or 1 integer in US-ASCII encoding) on the input stream
int	parseInt() Parses an int in US-ASCII encoding on the input stream
long	parseLong() Parses a long in US-ASCII encoding on the input stream
byte	readByte() Reads binary data; one byte
void	readBytes(byte[] buf, int off, int len) Reads a block of binary data in BLOCKING fashion
java.lang.String	readByteString(int len) Reads binary data; a US-ASCII string of the specified length
char	readChar() Reads binary data; one 16-bit character in big-endian format
java.lang.String	readCharString(int len) Reads binary data; a Unicode string of the specified length
long	readUnsignedInt() Reads binary data; one 32-bit unsigned int in big-endian format.
void	skipByte()

Methods inherited from class java.lang.Object

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

Constructor Detail

InputLexer

public InputLexer(java.io.BufferedInputStream in)
           throws java.io.IOException

Throws:

java.io.IOException

Method Detail

close

public void close()
           throws java.io.IOException

Throws:

java.io.IOException

parseBoolean

public boolean parseBoolean()
                     throws java.io.IOException

Parses a boolean (really either a 0 or 1 integer in US-ASCII encoding) on the input stream

Throws:

java.io.IOException

parseInt

public int parseInt()
             throws java.io.IOException

Parses an int in US-ASCII encoding on the input stream

Throws:

java.io.IOException

parseLong

public long parseLong()
               throws java.io.IOException

Parses a long in US-ASCII encoding on the input stream

Throws:

java.io.IOException

parseAddress

public long parseAddress()
                  throws java.io.IOException

Parses an address in the form 0x12345678 in US-ASCII encoding on the input stream

Throws:

java.io.IOException

skipByte

public void skipByte()
              throws java.io.IOException

Throws:

java.io.IOException

readByte

public byte readByte()
              throws java.io.IOException

Reads binary data; one byte

Throws:

java.io.IOException

readBytes

public void readBytes(byte[] buf,
                      int off,
                      int len)
               throws java.io.IOException

Reads a block of binary data in BLOCKING fashion

Throws:

java.io.IOException

readChar

public char readChar()
              throws java.io.IOException

Reads binary data; one 16-bit character in big-endian format

Throws:

java.io.IOException

readUnsignedInt

public long readUnsignedInt()
                     throws java.io.IOException

Reads binary data; one 32-bit unsigned int in big-endian format. Returned as a long.

Throws:

java.io.IOException

readByteString

public java.lang.String readByteString(int len)
                                throws java.io.IOException

Reads binary data; a US-ASCII string of the specified length

Throws:

java.io.IOException

readCharString

public java.lang.String readCharString(int len)
                                throws java.io.IOException

Reads binary data; a Unicode string of the specified length

Throws:

java.io.IOException