corda/classpath/avian/Stream.java
Joel Dice 87b02eb949 update copyright years
Previously, I used a shell script to extract modification date ranges
from the Git history, but that was complicated and unreliable, so now
every file just gets the same year range in its copyright header.  If
someone needs to know when a specific file was modified and by whom,
they can look at the Git history themselves; no need to include it
redundantly in the header.
2013-07-02 20:52:38 -06:00

81 lines
2.4 KiB
Java

/* Copyright (c) 2008-2013, Avian Contributors
Permission to use, copy, modify, and/or distribute this software
for any purpose with or without fee is hereby granted, provided
that the above copyright notice and this permission notice appear
in all copies.
There is NO WARRANTY for this software. See license.txt for
details. */
package avian;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.io.EOFException;
public abstract class Stream {
public static void write1(OutputStream out, int v) throws IOException {
out.write(v & 0xFF);
}
public static int read1(InputStream in) throws IOException {
return in.read();
}
public static void write2(OutputStream out, int v) throws IOException {
out.write((v >>> 8) & 0xFF);
out.write((v ) & 0xFF);
}
public static int read2(InputStream in) throws IOException {
int b1 = in.read();
int b2 = in.read();
if (b2 == -1) throw new EOFException();
return ((b1 << 8) | (b2 & 0xFF));
}
public static void write4(OutputStream out, int v) throws IOException {
out.write((v >>> 24) & 0xFF);
out.write((v >>> 16) & 0xFF);
out.write((v >>> 8) & 0xFF);
out.write((v ) & 0xFF);
}
public static int read4(InputStream in) throws IOException {
int b1 = in.read();
int b2 = in.read();
int b3 = in.read();
int b4 = in.read();
if (b4 == -1) throw new EOFException();
return ((b1 << 24) | (b2 << 16) | (b3 << 8) | (b4));
}
public static void write8(OutputStream out, long v) throws IOException {
write4(out, (int) (v >>> 32) & 0xFFFFFFFF);
write4(out, (int) (v ) & 0xFFFFFFFF);
}
public static long read8(InputStream in) throws IOException {
long b1 = in.read();
long b2 = in.read();
long b3 = in.read();
long b4 = in.read();
long b5 = in.read();
long b6 = in.read();
long b7 = in.read();
long b8 = in.read();
if (b8 == -1) throw new EOFException();
return ((b1 << 56) | (b2 << 48) | (b3 << 40) | (b4 << 32) |
(b5 << 24) | (b6 << 16) | (b7 << 8) | (b8));
}
public static void set4(byte[] array, int offset, int v) {
array[offset ] = (byte) ((v >>> 24) & 0xFF);
array[offset + 1] = (byte) ((v >>> 16) & 0xFF);
array[offset + 2] = (byte) ((v >>> 8) & 0xFF);
array[offset + 3] = (byte) ((v ) & 0xFF);
}
}