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Index of all Fields and Methods

A

allocateBlock(). Method in class FileSystem: Allocate a data block from the list of free blocks.
allocateIndexNode(). Method in class FileSystem: Allocate an index node for the file system.

B

BitBlock(short). Constructor for class BitBlock: Construct a bit block of the specified size in bytes.
Block(). Constructor for class Block: Construct a block.
Block(short). Constructor for class Block: Construct a block with a given block size.
BUF_SIZE. Static variable in class cat: The size of the buffer to be used for reading from the file.
BUF_SIZE. Static variable in class cp: The size of the buffer to be used when reading files.
BUF_SIZE. Static variable in class tee: The size of the buffer to be used for reading from the file.
bytes. Variable in class Block: The array of bytes for this block.

C

cat(). Constructor for class cat
close(). Method in class FileSystem: Close the backing file for this FileSystem, if any.
close(int). Static method in class Kernel: Closes the specified file descriptor.
copy(IndexNode). Method in class IndexNode
copyIndexNode(IndexNode). Method in class Stat
cp(). Constructor for class cp
creat(String, short). Static method in class Kernel: Creates a file or directory with the specified mode.

D

d_ino. Variable in class DirectoryEntry: i-node number for this DirectoryEntry
d_name. Variable in class DirectoryEntry: file name for this DirectoryEntry
DIRECTORY_ENTRY_SIZE. Static variable in class DirectoryEntry: Size of a directory entry (on disk) in bytes.
DirectoryEntry(). Constructor for class DirectoryEntry: Constructs an empty DirectoryEntry.
DirectoryEntry(short, String). Constructor for class DirectoryEntry: Constructs a DirectoryEntry for the given inode and name.
dump(). Constructor for class dump

E

EACCES. Static variable in class Kernel: Permission denied.
EBADF. Static variable in class Kernel: Bad file number.
EEXIST. Static variable in class Kernel: File exists.
EFBIG. Static variable in class Kernel: File too large.
EINVAL. Static variable in class Kernel: Invalid argument.
EISDIR. Static variable in class Kernel: Is a directory.
EMFILE. Static variable in class Kernel: Too many open files.
EMLINK. Static variable in class Kernel: Too many links.
ENFILE. Static variable in class Kernel: File table overflow.
ENOENT. Static variable in class Kernel: No such file or directory.
ENOSPC. Static variable in class Kernel: No space left on device.
ENOTDIR. Static variable in class Kernel: Not a directory.
EPERM. Static variable in class Kernel: Not owner.
EROFS. Static variable in class Kernel: Read-only file system.
errno. Variable in class ProcessContext: Number of last error.
EXDEV. Static variable in class Kernel: Cross-device link.
exit(int). Static method in class Kernel: Terminate the current "process".

F

FileSystem(String, String). Constructor for class FileSystem: Construct a FileSystem and open a FileSystem file.
finalize(int). Static method in class Kernel: End the simulation and exit.
freeBlock(int). Method in class FileSystem: Mark a data block as being free in the free list.
fstat(int, Stat). Static method in class Kernel: Obtain information for an open file.

G

getAtime(). Method in class IndexNode
getAtime(). Method in class Stat
getBlockAddress(int). Method in class IndexNode: Gets the address corresponding to the specified sequential block of the file.
getBlocks(). Method in class SuperBlock
getBlockSize(). Method in class Block: Get the block size in bytes for this Block.
getBlockSize(). Method in class FileDescriptor
getBlockSize(). Method in class FileSystem: Get the blockSize for this FileSystem.
getBlockSize(). Method in class SuperBlock
getBytes(). Method in class FileDescriptor
getCtime(). Method in class IndexNode
getCtime(). Method in class Stat
getDataBlockOffset(). Method in class FileSystem
getDataBlockOffset(). Method in class SuperBlock: Get the dataBlockOffset (in blocks)
getDev(). Method in class Stat
getDeviceNumber(). Method in class FileDescriptor
getDir(). Method in class ProcessContext: Get the process working directory.
getErrno(). Static method in class Kernel: Get the value of errno for the current process.
getFlags(). Method in class FileDescriptor
getFreeListBlockOffset(). Method in class FileSystem
getFreeListBlockOffset(). Method in class SuperBlock: Get the free list block offset
getGid(). Method in class IndexNode
getGid(). Method in class ProcessContext: Get the process gid.
getGid(). Method in class Stat
getIndexNode(). Method in class FileDescriptor
getIndexNodeNumber(). Method in class FileDescriptor
getIno(). Method in class DirectoryEntry: Gets the inode number for this DirectoryEntry
getIno(). Method in class Stat
getInodeBlockOffset(). Method in class FileSystem
getInodeBlockOffset(). Method in class SuperBlock: Get the inode block offset (in blocks)
getMode(). Method in class FileDescriptor
getMode(). Method in class IndexNode: Gets the mode for this IndexNode.
getMode(). Method in class Stat
getMtime(). Method in class IndexNode
getMtime(). Method in class Stat
getName(). Method in class DirectoryEntry: Gets the name for this DirectoryEntry
getNlink(). Method in class IndexNode: Get the number of links for this IndexNode.
getNlink(). Method in class Stat
getOffset(). Method in class FileDescriptor
getRdev(). Method in class Stat
getRootIndexNode(). Method in class FileSystem: Get the rootIndexNode for this FileSystem.
getSize(). Method in class FileDescriptor
getSize(). Method in class IndexNode: Gets the size for this IndexNode.
getSize(). Method in class Stat
getUid(). Method in class IndexNode
getUid(). Method in class ProcessContext: Get the process uid.
getUid(). Method in class Stat
getUmask(). Method in class ProcessContext: Get the process umask.

I

INDEX_NODE_SIZE. Static variable in class IndexNode: Size of each index node in bytes.
IndexNode(). Constructor for class IndexNode: Creates an index node.
initialize(). Static method in class Kernel: Initialize the file simulator kernel.
isBitSet(int). Method in class BitBlock: Checks to see if the specified bit of the block is set (1) or reset (0).

K

Kernel(). Constructor for class Kernel

L

ls(). Constructor for class ls
lseek(int, int, int). Static method in class Kernel: Set the current file pointer for a file.

M

main(String[]). Static method in class cat: Reads files and writes to standard output.
main(String[]). Static method in class cp: Copies an input file to an output file.
main(String[]). Static method in class DirectoryEntry: A test driver for this class.
main(String[]). Static method in class dump
main(String[]). Static method in class IndexNode: A test driver for IndexNode.
main(String[]). Static method in class ls: Lists information about named files or directories.
main(String[]). Static method in class mkdir: Creates the directories given as command line arguments.
main(String[]). Static method in class mkfs: Creates a "file system" in the named file with the specified blocksize and number of blocks.
main(String[]). Static method in class tee: Copies standard input to standard output and to a file.
MAX_DIRECT_BLOCKS. Static variable in class IndexNode: Maximum number of direct blocks in an index node.
MAX_FILE_BLOCKS. Static variable in class IndexNode: Maximum number of blocks in a file.
MAX_FILENAME_LENGTH. Static variable in class DirectoryEntry: Maximum length of a file name.
MAX_OPEN_FILE_SYSTEMS. Static variable in class Kernel
MAX_OPEN_FILES. Static variable in class ProcessContext: The maximum number of files a process may have open.
mkdir(). Constructor for class mkdir
mkfs(). Constructor for class mkfs

N

NOT_A_BLOCK. Static variable in class FileSystem

O

O_RDONLY. Static variable in class Kernel: Open with read-only access.
O_RDWR. Static variable in class Kernel: Open for read or write access.
O_WRONLY. Static variable in class Kernel: Open with write-only access.
open(). Method in class FileSystem: Open a backing file for this FileSystem and read the superblock.
open(String, int). Static method in class Kernel: Opens a file or directory for reading, writing, or both reading and writing.
openFiles. Variable in class ProcessContext: The array of file descriptors for open files.
openFileSystems. Static variable in class Kernel
OUTPUT_MODE. Static variable in class cp: The file mode to use when creating the output file.
OUTPUT_MODE. Static variable in class tee: The file mode to use when creating the output file.

P

perror(String). Static method in class Kernel: Prints a system error message.
ProcessContext(). Constructor for class ProcessContext: Construct a process context.
ProcessContext(short, short, String, short). Constructor for class ProcessContext: Construct a process context and specify uid, gid, dir, and umask.
PROGRAM_NAME. Static variable in class cat: The name of this program.
PROGRAM_NAME. Static variable in class cp: The name of this program.
PROGRAM_NAME. Static variable in class Kernel: The name this program uses when displaying any error messages it generates internally.
PROGRAM_NAME. Static variable in class ls: The name of this program.
PROGRAM_NAME. Static variable in class mkdir: The name of this program.
PROGRAM_NAME. Static variable in class tee: The name of this program.

R

read(byte[], int). Method in class DirectoryEntry: Reads a DirectoryEntry from the spcified byte array at the specified offset.
read(byte[], int). Method in class FileSystem: Read bytes into a buffer from the specified absolute block number of the file system.
read(byte[], int). Method in class IndexNode: Reads the contents of an index node from a byte array.
read(int, byte[], int). Static method in class Kernel: Read bytes from a file.
read(RandomAccessFile). Method in class Block: Read a block from a file at the current position.
read(RandomAccessFile). Method in class SuperBlock: reads this SuperBlock at the current position of the specified file.
readBlock(short). Method in class FileDescriptor
readdir(int, DirectoryEntry). Static method in class Kernel: Reads a directory entry from a file descriptor for an open directory.
readIndexNode(IndexNode, short). Method in class FileSystem: Reads an index node at the index node location specified.
resetBit(int). Method in class BitBlock: Sets the specified bit of the block to 0 (false).
ROOT_FILE_SYSTEM. Static variable in class Kernel
ROOT_INDEX_NODE_NUMBER. Static variable in class FileSystem

S

S_IEXEC. Static variable in class Kernel

User has execute permission

S_IFBLK. Static variable in class Kernel

Block Special

S_IFCHR. Static variable in class Kernel

Character special

S_IFDIR. Static variable in class Kernel

Directory

S_IFMPB. Static variable in class Kernel

Multiplexed block special

S_IFMPC. Static variable in class Kernel

Multiplexed character special

S_IFMT. Static variable in class Kernel

File type mask

S_IFREG. Static variable in class Kernel

Regular file

S_IREAD. Static variable in class Kernel

User has read permission

S_IRGRP. Static variable in class Kernel

Group has read permission

S_IROTH. Static variable in class Kernel

Others have read permission

S_IRUSR. Static variable in class Kernel

User has read permission

S_IRWXG. Static variable in class Kernel

Group has read, write and execute permission

S_IRWXO. Static variable in class Kernel

Others have read, write and execute permission

S_IRWXU. Static variable in class Kernel

User (file owner) has read, write and execute permission

S_ISGID. Static variable in class Kernel

Set group id on execution

S_ISUID. Static variable in class Kernel

Set user id on execution

S_ISVTX. Static variable in class Kernel

Save swapped text even after use

S_IWGRP. Static variable in class Kernel

Group has write permission

S_IWOTH. Static variable in class Kernel

Others have write permisson

S_IWRITE. Static variable in class Kernel

User has write permission

S_IWUSR. Static variable in class Kernel

User has write permission

S_IXGRP. Static variable in class Kernel

Group has execute permission

S_IXOTH. Static variable in class Kernel

Others have execute permission

S_IXUSR. Static variable in class Kernel

User has execute permission

setAtime(int). Method in class IndexNode

setAtime(int). Method in class Stat

setBit(int). Method in class BitBlock

Set a specified bit to 1 (true).

setBit(int, boolean). Method in class BitBlock

Set a specifed bit to a specified boolean value.

setBlockAddress(int, int). Method in class IndexNode

Sets the address corresponding to the specified sequential block of the file.

setBlocks(int). Method in class SuperBlock

setBlockSize(short). Method in class Block

Set the block size in bytes for this Block.

setBlockSize(short). Method in class SuperBlock

setCtime(int). Method in class IndexNode

setCtime(int). Method in class Stat

setDataBlockOffset(int). Method in class SuperBlock

Set the dataBlockOffset (in blocks)

setDev(short). Method in class Stat

setDeviceNumber(short). Method in class FileDescriptor

setDir(String). Method in class ProcessContext

Set the process working directory.

setErrno(int). Static method in class Kernel

Set the value of errno for the current process.

setFreeListBlockOffset(int). Method in class SuperBlock

Set the freeListBlockOffset (in blocks)

setGid(short). Method in class IndexNode

setGid(short). Method in class ProcessContext

Set the process gid.

setGid(short). Method in class Stat

setIndexNodeNumber(short). Method in class FileDescriptor

setIno(short). Method in class DirectoryEntry

Sets the inode number for this DirectoryEntry

setIno(short). Method in class Stat

setInodeBlockOffset(int). Method in class SuperBlock

Set the inodeBlockOffset (in blocks)

setMode(short). Method in class IndexNode

Sets the mode for this IndexNode.

setMode(short). Method in class Stat

setMtime(int). Method in class IndexNode

setMtime(int). Method in class Stat

setName(String). Method in class DirectoryEntry

Sets the name for this DirectoryEntry

setNlink(short). Method in class IndexNode

Set the number of links for this IndedNode.

setNlink(short). Method in class Stat

setOffset(int). Method in class FileDescriptor

setRdev(short). Method in class Stat

setSize(int). Method in class FileDescriptor

setSize(int). Method in class IndexNode

Sets the size for this IndexNode.

setSize(int). Method in class Stat

setUid(short). Method in class IndexNode

setUid(short). Method in class ProcessContext

Set the process uid.

setUid(short). Method in class Stat

setUmask(short). Method in class ProcessContext

Set the process umask.

st_atime. Variable in class Stat

st_ctime. Variable in class Stat

st_dev. Variable in class Stat

st_gid. Variable in class Stat

st_ino. Variable in class Stat

st_mode. Variable in class Stat

st_mtime. Variable in class Stat

st_nlink. Variable in class Stat

st_rdev. Variable in class Stat

st_size. Variable in class Stat

st_uid. Variable in class Stat

Stat(). Constructor for class Stat

stat(String, Stat). Static method in class Kernel

Obtain information about a named file.

SuperBlock(). Constructor for class SuperBlock

Construct a SuperBlock.

sync(). Static method in class Kernel

First commits inodes to buffers, and then buffers to disk.

sys_errlist. Static variable in class Kernel

The array of kernel error messages.

sys_nerr. Static variable in class Kernel

Number of errors messages defined in sys_errlist

Simulates unix system variable:

   int sys_nerr;

T

tee(). Constructor for class tee
toString(). Method in class DirectoryEntry: Converts a DirectoryEntry to a printable string.
toString(). Method in class IndexNode: Converts an index node into a printable string.

W

write(byte[], int). Method in class DirectoryEntry: Writes a DirectoryEntry to the specified byte array at the specified offset.
write(byte[], int). Method in class FileSystem: Write bytes from a buffer to the specified absolute block number of the file system.
write(byte[], int). Method in class IndexNode: Writes the contents of an index node to a byte array.
write(int, byte[], int). Static method in class Kernel: Write bytes to a file.
write(RandomAccessFile). Method in class Block: Write a block to a file at the current position.
write(RandomAccessFile). Method in class SuperBlock: writes this SuperBlock at the current position of the specified file.
writeBlock(short). Method in class FileDescriptor
writedir(int, DirectoryEntry). Static method in class Kernel: Writes a directory entry from a file descriptor for an open directory.
writeIndexNode(IndexNode, short). Method in class FileSystem: Writes an index node at the index node location specified.