Class DefaultEmuUnixFileHandle<T>

java.lang.Object

ghidra.pcode.emu.unix.AbstractEmuUnixFileHandle<T>

ghidra.pcode.emu.unix.DefaultEmuUnixFileHandle<T>

Type Parameters:

T - the type of values stored in the file

All Implemented Interfaces:

EmuUnixFileDescriptor<T>

public class DefaultEmuUnixFileHandle<T>
extends AbstractEmuUnixFileHandle<T>

A concrete file descriptor

Field Summary

Fields inherited from class AbstractEmuUnixFileHandle

arithmetic, file, flags, offsetBytes, user

Fields inherited from interface EmuUnixFileDescriptor

FD_STDERR, FD_STDIN, FD_STDOUT

Constructor Summary

Constructors

Constructor	Description
DefaultEmuUnixFileHandle(PcodeMachine<T> machine, CompilerSpec cSpec, EmuUnixFile<T> file, Set<EmuUnixFileSystem.OpenFlag> flags, EmuUnixUser user)	Construct a new handle on the given file

Method Summary

Modifier and Type	Method	Description
T	getAbstractOffset()	Returns the current offset of the file, or 0 if not applicable.
long	getOffset()	Returns the current offset of the file, or 0 if not applicable.
int	read(T buf)	Read from the file opened by this handle
T	readAbstract(T buf)	Read from the file opened by this handle
void	seek(long offset)	Seek to the given offset
void	seek(T offset)	Seek to the given offset
int	write(T buf)	Write into the file opened by this handle
T	writeAbstract(T buf)	Write into the file opened by this handle

Methods inherited from class AbstractEmuUnixFileHandle

checkReadable, checkWritable, close, getFile, stat

Methods inherited from class Object

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

Constructor Details

DefaultEmuUnixFileHandle

public DefaultEmuUnixFileHandle(PcodeMachine<T> machine,
 CompilerSpec cSpec,
 EmuUnixFile<T> file,
 Set<EmuUnixFileSystem.OpenFlag> flags,
 EmuUnixUser user)

Construct a new handle on the given file

Parameters:

machine - the machine emulating the hardware

cSpec - the ABI of the target platform

file - the file opened by this handle

flags - the user-specified flags, as defined by the simulator

user - the user that opened the file

See Also:

• AbstractEmuUnixSyscallUseropLibrary.createHandle(EmuUnixFile, int)

Method Details

getOffset

public long getOffset()

Description copied from interface: EmuUnixFileDescriptor

Returns the current offset of the file, or 0 if not applicable.

Returns:

the current offset of the file, or 0 if not applicable

getAbstractOffset

public T getAbstractOffset()

Description copied from interface: EmuUnixFileDescriptor

Returns the current offset of the file, or 0 if not applicable.

Returns:

the current offset of the file, or 0 if not applicable

seek

public void seek(T offset)
          throws EmuIOException

Description copied from interface: EmuUnixFileDescriptor

Seek to the given offset

Parameters:

offset - the desired offset

Throws:

EmuIOException - if an error occurred

seek

public void seek(long offset)
          throws EmuIOException

Description copied from interface: EmuUnixFileDescriptor

Seek to the given offset

Parameters:

offset - the desired offset

Throws:

EmuIOException - if an error occurred

read

public int read(T buf)
         throws EmuIOException

Description copied from interface: EmuUnixFileDescriptor

Read from the file opened by this handle

Parameters:

buf - the destination buffer

Returns:

the number of bytes read

Throws:

EmuIOException - if an error occurred

readAbstract

public T readAbstract(T buf)
               throws EmuIOException

Description copied from interface: EmuUnixFileDescriptor

Read from the file opened by this handle

Parameters:

buf - the destination buffer

Returns:

the number of bytes read

Throws:

EmuIOException - if an error occurred

write

public int write(T buf)
          throws EmuIOException

Description copied from interface: EmuUnixFileDescriptor

Write into the file opened by this handle

Parameters:

buf - the source buffer

Returns:

the number of bytes written

Throws:

EmuIOException - if an error occurred

writeAbstract

public T writeAbstract(T buf)
                throws EmuIOException

Description copied from interface: EmuUnixFileDescriptor

Write into the file opened by this handle

Parameters:

buf - the source buffer

Returns:

the number of bytes written

Throws:

EmuIOException - if an error occurred