/**
* Array with
*
* <p><name> <creationTime> <modificationTime> <dirFlag> <fileSize>
*
* <p>See {@link #lookupEntryInIndex(int)}
*/
private SqueakObject makeDirectoryEntryArray(File file) {
// bah, Java doesn't provide the creation time. If it is
// really necessary, it may be possible to use java-posix or
// jtux.
String name = file.getName();
long creationTime = file.lastModified();
long modificationTime = file.lastModified();
boolean dirFlag = file.isDirectory();
long fileSize = file.length();
try {
Object[] array = {
fHandler.makeStString(name),
fHandler.squeakSeconds(creationTime),
fHandler.squeakSeconds(modificationTime),
fHandler.squeakBool(dirFlag),
fHandler.pos32BitIntFor(fileSize)
};
return fHandler.squeakArray(array);
} catch (ArrayIndexOutOfBoundsException e) {
System.out.println(
"Error in FileSystemPrimitives.makeDirectoryEntryArray: name = '" + name + "'");
throw e;
}
}
/**
* primGetPosition: id "Get the receiver's current file position. 2/12/96 sw" <primitive: 152> ^
* self primitiveFailed!
*/
Object getPosition(int argCount) {
if (argCount != 1) throw fHandler.primitiveFailed();
RandomAccessFile file = lookupFile();
try {
return fHandler.pos32BitIntFor(file.getFilePointer());
} catch (IOException e) {
e.printStackTrace();
}
throw fHandler.primitiveFailed();
}
/**
* primWrite: id from: byteArray startingAt: startIndex count: count "Write into the receiver's
* file from the given area of storage, starting at the given index, as many as count bytes;
* return the number of bytes actually written. 2/12/96 sw"
*
* <p><primitive: 158>
*
* <p>closed ifTrue: [^ self halt: 'Write error: File not open']. rwmode ifFalse: [^ self halt:
* 'Error-attempt to write to a read-only file.']. self halt: 'File write error'! !
*/
Object fileWrite(int argCount) {
if (argCount != 4) throw fHandler.primitiveFailed();
RandomAccessFile file = lookupFile(3);
SqueakObject byteArray = fHandler.stackNonInteger(2);
int startIndex = fHandler.stackInteger(1) - 1; // zero based
int count = fHandler.stackInteger(0);
try {
int written = 0;
for (int index = startIndex; index < startIndex + count; index++) {
file.write(byteArray.getByte(index));
written++;
}
return fHandler.pos32BitIntFor(written);
} catch (IOException e) {
e.printStackTrace();
}
throw fHandler.primitiveFailed();
}
/**
* primRead: id into: byteArray startingAt: startIndex count: count "read from the receiver's file
* into the given area of storage, starting at the given index, as many as count bytes; return the
* number of bytes actually read. 2/12/96 sw"
*
* <p><primitive: 154>
*
* <p>self halt: 'error reading file'!
*/
Object readIntoStartingAtCount(int argCount) {
if (argCount != 4) throw fHandler.primitiveFailed();
SqueakObject byteArray = fHandler.stackNonInteger(2);
int startIndex = fHandler.stackInteger(1) - 1;
int count = fHandler.stackInteger(0);
RandomAccessFile file = lookupFile(3);
byte[] buffer = new byte[count];
try {
int read = file.read(buffer, 0, count);
for (int index = 0; index < read; index++) {
byteArray.setByte(startIndex + index, buffer[index]); // FIXME: this code cheats!
}
return fHandler.pos32BitIntFor(read);
} catch (IOException e) {
e.printStackTrace();
}
throw fHandler.primitiveFailed();
}
