diff options
author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
---|---|---|
committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/CORBA/CDR/AligningOutput.java | |
download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.
downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.
if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
Diffstat (limited to 'libjava/classpath/gnu/CORBA/CDR/AligningOutput.java')
-rw-r--r-- | libjava/classpath/gnu/CORBA/CDR/AligningOutput.java | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/CORBA/CDR/AligningOutput.java b/libjava/classpath/gnu/CORBA/CDR/AligningOutput.java new file mode 100644 index 000000000..b0c569ec8 --- /dev/null +++ b/libjava/classpath/gnu/CORBA/CDR/AligningOutput.java @@ -0,0 +1,148 @@ +/* AligningOutput.java -- + Copyright (C) 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.CORBA.CDR; + +import java.io.ByteArrayOutputStream; + +import org.omg.CORBA.BAD_PARAM; + +/** + * The input stream with the possibility to align on the + * word (arbitrary size) boundary. + * + * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) + */ +public class AligningOutput + extends ByteArrayOutputStream +{ + /** + * The alignment offset. + */ + private int offset = 0; + + /** + * Create a stream with the default intial buffer size. + */ + public AligningOutput() + { + } + + /** + * Create a stream with the given intial buffer size. + */ + public AligningOutput(int initial_size) + { + super(initial_size); + } + + /** + * Set the alignment offset, if the index of the first byte in the + * stream is different from 0. + */ + public void setOffset(int an_offset) + { + offset = an_offset; + } + + /** + * Skip several bytes, aligning the internal pointer on the + * selected boundary. + * + * @throws BAD_PARAM, minor code 0, the alignment is not possible, + * usually due the wrong parameter value. + */ + public void align(int alignment) + { + try + { + int d = (count + offset) % alignment; + if (d > 0) + { + skip(alignment - d); + } + } + catch (Exception ex) + { + BAD_PARAM p = new BAD_PARAM("Unable to align at " + alignment); + p.initCause(ex); + throw p; + } + } + + /** + * Write the specified number of zero bytes. + * + * @param bytes the number of zero bytes to write. + */ + public void skip(int bytes) + { + for (int i = 0; i < bytes; i++) + { + write(0); + } + } + + /** + * Get the current position in the buffer. + * + * @return The position in the buffer, taking offset into consideration. + */ + public int getPosition() + { + return size()+offset; + } + + /** + * Seek to the given position (not in use). + */ + public void seek(int position) + { + count = position - offset; + } + + /** + * Get the buffer without copying it. Use with care. + */ + public byte[] getBuffer() + { + return buf; + } + + +} |