private void testFile(DataOutputStream out) throws IOException {
File file = new File("test.txt");
if (file.exists()) {
file.delete();
}
RandomAccessFile write = new RandomAccessFile(file, "rws");
// RandomAccessFile write = new RandomAccessFile(file, "rwd");
int fileSize = 10 * 1024 * 1024;
FileUtils.setLength(write, fileSize);
write.seek(0);
int i = 0;
FileDescriptor fd = write.getFD();
while (true) {
if (write.getFilePointer() >= fileSize) {
break;
}
write.writeBytes(i + "\r\n");
fd.sync();
out.writeInt(i);
out.flush();
i++;
}
write.close();
}
