A B C D E F H I J K L M N O P R S T U W

A

arglist - Variable in class Kernel.Launcher

The list of arguments to this command.

B

BLOCK_SIZE - Static variable in class Disk

The size of a disk block in bytes.

Boot - class Boot.

A bootstrap program for the MiniKernel.

Boot() - Constructor for class Boot

beginRead(int, byte[]) - Method in class Disk

Starts a new read operation.

beginRead(int, byte[]) - Method in class FastDisk

Deprecated. Do not use this method. Use read instead.

beginWrite(int, byte[]) - Method in class Disk

Starts a new write operation.

beginWrite(int, byte[]) - Method in class FastDisk

Deprecated. Do not use this method. Use read instead.

br - Static variable in class Kernel

buffer - Variable in class Disk

Memory buffer to/from which current I/O operation is transferring.

busy - Variable in class Disk

An indication of whether an I/O operation is currently in progress.

C

cacheSize - Static variable in class Kernel

The size of the disk cache

create(String) - Static method in class Library

Creates a new empty file (size 0).

currentBlock - Variable in class Disk

Current location of the read/write head

D

DISK_SIZE - Variable in class Disk

Total size of this disk, in blocks.

Disk - class Disk.

A software simulation of a Disk.

Disk(int) - Constructor for class Disk

Creates a new Disk.

Disk.DiskException - exception Disk.DiskException.

The exception thrown when an illegal operation is attempted on the disk.

Disk.DiskException(String) - Constructor for class Disk.DiskException

data - Variable in class Disk

The data stored on the disk

delay(int) - Method in class Disk

Sleeps for a while to simulate the delay in seeking and transferring data.

delete() - Method in class Kernel.Launcher

Removes this Launcher from the set of all active Launchers.

disk - Static variable in class Kernel

The disk to be used

doExec(String, String[]) - Static method in class Kernel

Loads a program and runs it in the background.

doExecAndWait(String, String[]) - Static method in class Kernel

Loads a program and runs it.

doInput(StringBuffer) - Static method in class Kernel

Reads a line from the console into a StringBuffer.

doJoin(int) - Static method in class Kernel

Waits for a program previous started by doExec to terminate.

doOutput(String) - Static method in class Kernel

Displays a message on the console.

doPowerOn(int, Object, Object) - Static method in class Kernel

Performs the actions associated with a POWER_ON interrupt.

doShutdown() - Static method in class Kernel

Does any "shutdown" activities required after all activities started by a POWER_ON interrupt have completed.

E

ERROR_BAD_ARGUMENT - Static variable in class Kernel

An error code indicating that one of the system call parameters made no sense.

ERROR_BAD_COMMAND - Static variable in class Kernel

An error code indicating some unspecified problem running the class passed SYSCALL_EXEC.

ERROR_END_OF_FILE - Static variable in class Kernel

An error code indicating that end of file was reached.

ERROR_IN_CHILD - Static variable in class Kernel

An error code indicating that a child program caused an exception and crashed.

ERROR_IO - Static variable in class Kernel

An error code indicating that somthing went wrong during an I/O operation.

ERROR_NO_CLASS - Static variable in class Kernel

An error code indicating that the class name passed to SYSCALL_EXEC could not be found.

ERROR_NO_MAIN - Static variable in class Kernel

An error code indicating that the class name passed to SYSCALL_EXEC named a class with no appropriate main() method.

ERROR_NO_SUCH_PROCESS - Static variable in class Kernel

An error code indicating an attempt to join with a non-existant process

ERROR_OUT_OF_RANGE - Static variable in class Kernel

An error code indicating that one parameter was too big or too small

errorMessage - Static variable in class Library

A table of error messages corresponding to Kernel error return codes.

exec(String, String[]) - Static method in class Library

Performs SYSCALL_EXEC.

F

FastDisk - class FastDisk.

A new and improved Disk.

FastDisk(int) - Constructor for class FastDisk

Creates a new FastDisk.

FileTester - class FileTester.

Basic driver program to be used as a shell for the MiniKernel for project 5.

FileTester() - Constructor for class FileTester

finishOperation() - Method in class Disk

Indicates to the CPU that the current operation has completed.

flush() - Method in class Disk

Saves the contents of this Disk.

format(int, int) - Static method in class Library

Formats the disk.

H

help() - Static method in class FileTester

Prints a list of available commands.

help(String) - Static method in class FileTester

Prints help for command "cmd".

helpInfo - Static variable in class FileTester

Synopsis of commands.

I

INTERRUPT_DISK - Static variable in class Kernel

An interrupt kind indicating that a disk caused the interrupt.

INTERRUPT_POWER_ON - Static variable in class Kernel

An interrupt kind indicating that the system just started.

INTERRUPT_USER - Static variable in class Kernel

An interrupt kind indicating that a user program caused the interrupt.

input(StringBuffer) - Static method in class Library

Performs SYSCALL_INPUT.

interrupt(int, int, int, Object, Object, byte[]) - Static method in class Kernel

This is the only entry into the kernel.

isWriting - Variable in class Disk

An indication whether the current I/O operation is a write operation.

J

join(int) - Static method in class Library

Performs SYSCALL_JOIN.

joinAll() - Static method in class Kernel.Launcher

Waits for all existing Launchers to complete.

joinOne(int) - Static method in class Kernel.Launcher

Waits for a particular Launcher to complete.

K

Kernel - class Kernel.

A simple kernel simulation.

Kernel() - Constructor for class Kernel

Kernel.Launcher - class Kernel.Launcher.

A Launcher instance represents one atomic command being run by the Kernel.

Kernel.Launcher(String, String[]) - Constructor for class Kernel.Launcher

Creates a new Launcher for a program.

L

Library - class Library.

Convenience calls for using the Kernel.

Library() - Constructor for class Library

This private constructor ensures that no instances of Library are ever created.

link(String, String) - Static method in class Library

Adds an additional name to an existing file.

list() - Static method in class Library

Reports information about the file system to System.out.

M

main(String[]) - Static method in class Boot

The main program.

main(String[]) - Static method in class FileTester

Main program.

method - Variable in class Kernel.Launcher

The method being run by this command.

N

nextpid - Static variable in class Kernel.Launcher

Source of unique ids for Launcher instances.

O

output(String) - Static method in class Library

Performs SYSCALL_OUTPUT.

P

pid - Variable in class Kernel.Launcher

The process id of this command.

pidMap - Static variable in class Kernel.Launcher

Mapping of process ids (encoded as Integers) to Launcher instances.

pl(Object) - Static method in class Boot

Prints a message.

pl(Object) - Static method in class FileTester

Prints a line to System.out followed by a newline.

pr(Object) - Static method in class FileTester

Prints a line to System.out.

pr(char) - Static method in class FileTester

Prints a character to System.out.

R

read(int, byte[]) - Method in class FastDisk

Performs a read operation.

read(String, int, byte[]) - Static method in class Library

Reads from a file.

readCount - Variable in class Disk

A count of read operations performed, for statistics.

readTest(String, int, int) - Static method in class FileTester

Reads data from a (simulated) file using Library.read and displays the results.

requestQueued - Variable in class Disk

A flag set by beginRead or beginWrite to indicate that a request has been submitted.

returnCode - Variable in class Kernel.Launcher

Return code returned by this command (0 if the command has not yet completed.

run() - Method in class Disk

This method simulates the internal microprocessor of the disk controler.

run() - Method in class Kernel.Launcher

Main loop of the Launcher

S

SYSCALL_EXEC - Static variable in class Kernel

System call to execute a new program.

SYSCALL_INPUT - Static variable in class Kernel

System call to read text from the console.

SYSCALL_JOIN - Static variable in class Kernel

System call to wait for a process to terminate.

SYSCALL_OUTPUT - Static variable in class Kernel

System call to output text on the console.

showChar(int) - Static method in class FileTester

Display a readable representation of a byte.

sync() - Static method in class Library

Flushes all cached information to disk.

T

targetBlock - Variable in class Disk

The block number to be read/written by the current operation.

U

unlink(String) - Static method in class Library

Removes a name from a file.

usage() - Static method in class Boot

Prints a help message and exits.

W

waitForRequest() - Method in class Disk

Waits for a call to beginRead or beginWrite.

write(int, byte[]) - Method in class FastDisk

Performs a write operation.

write(String, int, byte[]) - Static method in class Library

Writes to a file.

writeCount - Variable in class Disk

A count of write operations performed, for statistics.

writeTest(String, int, int, String) - Static method in class FileTester

Writes data to a (simulated) file using Library.write.

writeTest(String, int, BufferedReader) - Static method in class FileTester

Write data to a (simulated) file using Library.write.

A B C D E F H I J K L M N O P R S T U W