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added support for extracting micro logs

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This commit is contained in:
nvt-se 2009-08-10 12:51:52 +00:00
parent 8acea82207
commit 9d030cad2c
7 changed files with 179 additions and 57 deletions
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6
tools/coffee-manager/se/sics/coffee/CoffeeConfiguration.java
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeConfiguration.java,v 1.1 2009/08/04 10:36:53 nvt-se Exp $
* $Id: CoffeeConfiguration.java,v 1.2 2009/08/10 12:51:52 nvt-se Exp $
*
* @author Nicolas Tsiftes
*
@ -63,8 +63,8 @@ public class CoffeeConfiguration {
new FileInputStream(filename);
prop.load(fstream);
for(int i = 0; i < validParameters.length; i++) {
if(prop.getProperty(validParameters[i]) == null) {
for (int i = 0; i < validParameters.length; i++) {
if (prop.getProperty(validParameters[i]) == null) {
throw new CoffeeException("missing the parameter \"" + validParameters[i] + "\" in the configuration file " + filename);
}
}

24
tools/coffee-manager/se/sics/coffee/CoffeeFS.java
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeFS.java,v 1.3 2009/08/04 15:19:08 nvt-se Exp $
* $Id: CoffeeFS.java,v 1.4 2009/08/10 12:51:52 nvt-se Exp $
*
* @author Nicolas Tsiftes
*
@ -67,7 +67,7 @@ public class CoffeeFS {
while(currentPage < (conf.fsSize / conf.pageSize)) {
CoffeeHeader header = readHeader(currentPage);
if(header.isActive()) {
if (header.isActive() && !header.isLog()) {
CoffeeFile file = new CoffeeFile(this, header);
files.put(file.getName(), file);
}
@ -87,12 +87,12 @@ public class CoffeeFS {
while(currentPage < (conf.fsSize / conf.pageSize)) {
header = readHeader(currentPage);
if(header.isFree()) {
if(start == INVALID_PAGE) {
if (header.isFree()) {
if (start == INVALID_PAGE) {
start = currentPage;
}
currentPage = nextFile(header, currentPage);
if(start + pages <= currentPage) {
if (start + pages <= currentPage) {
return start;
}
} else {
@ -111,7 +111,7 @@ public class CoffeeFS {
return conf;
}
private CoffeeHeader readHeader(int page) throws IOException {
public CoffeeHeader readHeader(int page) throws IOException {
byte[] bytes = new byte[conf.NAME_LENGTH + conf.pageTypeSize * 2 + 6];
int index = 0;
@ -121,16 +121,16 @@ public class CoffeeFS {
return header;
}
private void writeHeader(CoffeeHeader header) throws IOException {
public void writeHeader(CoffeeHeader header) throws IOException {
byte[] bytes = header.toRawHeader();
image.write(bytes, bytes.length, header.getPage() * conf.pageSize);
}
private int nextFile(CoffeeHeader header, int page) {
if(header.isFree()) {
if (header.isFree()) {
return page + conf.pagesPerSector & ~(conf.pagesPerSector - 1);
} else if(header.isIsolated()) {
} else if (header.isIsolated()) {
return page + 1;
}
@ -149,7 +149,7 @@ public class CoffeeFS {
int allocatePages = pageCount(file.length());
int start = findFreeExtent(allocatePages);
if(start == INVALID_PAGE) {
if (start == INVALID_PAGE) {
return null;
}
CoffeeHeader header = new CoffeeHeader(this, start);
@ -169,7 +169,7 @@ public class CoffeeFS {
public void removeFile(String filename)
throws CoffeeFileException, IOException {
CoffeeFile file = files.get(filename);
if(file == null) {
if (file == null) {
throw new CoffeeFileException("Coffee: attempt to remove inexistent file");
}
@ -181,7 +181,7 @@ public class CoffeeFS {
public boolean extractFile(String filename) throws IOException {
CoffeeFile file = files.get(filename);
if(file == null) {
if (file == null) {
return false;
}

43
tools/coffee-manager/se/sics/coffee/CoffeeFile.java
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeFile.java,v 1.2 2009/08/04 10:39:13 nvt-se Exp $
* $Id: CoffeeFile.java,v 1.3 2009/08/10 12:51:52 nvt-se Exp $
*
* @author Nicolas Tsiftes
*
@ -39,30 +39,36 @@ package se.sics.coffee;
import java.io.*;
public class CoffeeFile {
private CoffeeFS coffeeFS;
private CoffeeHeader header;
protected CoffeeFS coffeeFS;
protected CoffeeHeader header;
private String name;
private int length;
private int startPage;
private int reservedSize;
private CoffeeFile logFile;
private CoffeeMicroLog microLog;
private boolean knownLength;
public CoffeeFile(CoffeeFS coffeeFS, CoffeeHeader header) {
public CoffeeFile(CoffeeFS coffeeFS, CoffeeHeader header) throws IOException {
this.coffeeFS = coffeeFS;
this.header = header;
name = header.name;
startPage = header.getPage();
reservedSize = header.maxPages * coffeeFS.getConfiguration().pageSize;
if (header.isModified() &&
coffeeFS.getConfiguration().useMicroLogs == true) {
microLog = new CoffeeMicroLog(coffeeFS, coffeeFS.readHeader(header.logPage));
} else {
microLog = null;
}
}
private int calculateLength() throws IOException {
byte[] bytes = new byte[1];
int i;
for(i = reservedSize; i >= header.rawLength(); i--) {
for (i = reservedSize; i >= header.rawLength(); i--) {
coffeeFS.getImage().read(bytes, 1, header.getPage() * coffeeFS.getConfiguration().pageSize + i);
if(bytes[0] != 0) {
if (bytes[0] != 0) {
return i - header.rawLength() + 1;
}
}
@ -89,16 +95,29 @@ public class CoffeeFile {
}
public void saveContents(String filename) throws IOException {
byte[] bytes = new byte[1];
int startOffset = header.getPage() *
coffeeFS.getConfiguration().pageSize +
header.rawLength();
int i;
byte[] bytes;
FileOutputStream fOut = new FileOutputStream(filename);
for(i = 0; i < getLength(); i++) {
coffeeFS.getImage().read(bytes, 1, startOffset + i);
fOut.write(bytes);
if(microLog != null) {
for(i = 0; i < microLog.getLogRecords(); i++) {
bytes = microLog.getRegion(i);
if(bytes == null) {
bytes = new byte[1];
coffeeFS.getImage().read(bytes, 1, i * microLog.getLogRecordSize());
}
fOut.write(bytes);
}
} else {
bytes = new byte[1];
for (i = 0; i < getLength(); i++) {
coffeeFS.getImage().read(bytes, 1, startOffset + i);
fOut.write(bytes);
}
}
fOut.close();
@ -113,7 +132,7 @@ public class CoffeeFile {
}
public int getLength() throws IOException {
if(!knownLength) {
if (!knownLength) {
length = calculateLength();
knownLength = true;
}

32
tools/coffee-manager/se/sics/coffee/CoffeeHeader.java
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeHeader.java,v 1.1 2009/08/04 10:36:53 nvt-se Exp $
* $Id: CoffeeHeader.java,v 1.2 2009/08/10 12:51:52 nvt-se Exp $
*
* @author Nicolas Tsiftes
*
@ -97,7 +97,7 @@ class CoffeeHeader {
name = new String(bytes).substring(index,
index + conf.NAME_LENGTH);
int nullCharOffset = name.indexOf(0);
if(nullCharOffset >= 0) {
if (nullCharOffset >= 0) {
name = name.substring(0, nullCharOffset);
}
}
@ -105,23 +105,23 @@ class CoffeeHeader {
private byte composeFlags() {
byte flags = 0;
if(valid) {
if (valid) {
flags |= HDR_FLAG_VALID;
}
if(allocated) {
if (allocated) {
flags |= HDR_FLAG_ALLOCATED;
}
if(obsolete) {
if (obsolete) {
flags |= HDR_FLAG_OBSOLETE;
}
if(modified) {
if (modified) {
flags |= HDR_FLAG_MODIFIED;
}
if(log) {
if (log) {
flags |= HDR_FLAG_LOG;
}
if(isolated) {
if (isolated) {
flags |= HDR_FLAG_ISOLATED;
}
@ -129,22 +129,22 @@ class CoffeeHeader {
}
private void processFlags(int flags) {
if((flags & HDR_FLAG_VALID) != 0) {
if ((flags & HDR_FLAG_VALID) != 0) {
valid = true;
}
if((flags & HDR_FLAG_ALLOCATED) != 0) {
if ((flags & HDR_FLAG_ALLOCATED) != 0) {
allocated = true;
}
if((flags & HDR_FLAG_OBSOLETE) != 0) {
if ((flags & HDR_FLAG_OBSOLETE) != 0) {
obsolete = true;
}
if((flags & HDR_FLAG_MODIFIED) != 0) {
if ((flags & HDR_FLAG_MODIFIED) != 0) {
modified = true;
}
if((flags & HDR_FLAG_LOG) != 0) {
if ((flags & HDR_FLAG_LOG) != 0) {
log = true;
}
if((flags & HDR_FLAG_ISOLATED) != 0) {
if ((flags & HDR_FLAG_ISOLATED) != 0) {
isolated = true;
}
}
@ -152,7 +152,7 @@ class CoffeeHeader {
private byte[] setPageValue(int page) {
byte[] bytes = new byte[conf.pageTypeSize];
for(int i = conf.pageTypeSize - 1; i >= 0; i--) {
for (int i = conf.pageTypeSize - 1; i >= 0; i--) {
bytes[i] = (byte) (page >> (8 * i));
}
return bytes;
@ -161,7 +161,7 @@ class CoffeeHeader {
private int getPageValue(byte[] bytes, int offset) {
int page = 0;
for(int i = 0; i < conf.pageTypeSize; i++) {
for (int i = 0; i < conf.pageTypeSize; i++) {
page |= bytes[offset + i] << (8 * i);
}
return page;

4
tools/coffee-manager/se/sics/coffee/CoffeeImageFile.java
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeImageFile.java,v 1.1 2009/08/04 10:36:53 nvt-se Exp $
* $Id: CoffeeImageFile.java,v 1.2 2009/08/10 12:51:52 nvt-se Exp $
*
* @author Nicolas Tsiftes
*
@ -50,7 +50,7 @@ public class CoffeeImageFile implements CoffeeImage {
this.conf = conf;
File file = new File(filename);
imageFile = new RandomAccessFile(file, "rw");
if(imageFile.length() == 0) {
if (imageFile.length() == 0) {
// Allocate a full file system image.
imageFile.setLength(conf.fsSize);
}

24
tools/coffee-manager/se/sics/coffee/CoffeeManager.java
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeManager.java,v 1.2 2009/08/04 15:19:08 nvt-se Exp $
* $Id: CoffeeManager.java,v 1.3 2009/08/10 12:51:52 nvt-se Exp $
*
* @author Nicolas Tsiftes
*
@ -57,25 +57,25 @@ public class CoffeeManager {
usage += "[-l|s] ";
usage += "<file system image>";
if(args.length < 1) {
if (args.length < 1) {
System.err.println(usage);
System.exit(1);
}
if(args.length > 1) {
if (args.length > 1) {
Pattern validArg = Pattern.compile("-(i|e|r|l|s)");
Matcher m = validArg.matcher(args[0]);
if(!m.matches()) {
if (!m.matches()) {
System.err.println(usage);
System.exit(1);
}
if(args[0].equals("-i") || args[0].equals("-e") || args[0].equals("-r")) {
if(args.length != 3) {
if (args[0].equals("-i") || args[0].equals("-e") || args[0].equals("-r")) {
if (args.length != 3) {
System.err.println(usage);
System.exit(1);
}
if(args[0].equals("-i")) {
if (args[0].equals("-i")) {
command = Command.INSERT;
} else if (args[0].equals("-r")) {
command = Command.REMOVE;
@ -85,11 +85,11 @@ public class CoffeeManager {
filename = args[1];
fsImage = args[2];
} else {
if(args.length != 2) {
if (args.length != 2) {
System.err.println(usage);
System.exit(1);
}
if(args[0].equals("-l")) {
if (args[0].equals("-l")) {
command = Command.LIST;
} else {
command = Command.STATS;
@ -103,19 +103,19 @@ public class CoffeeManager {
coffeeFS = new CoffeeFS(new CoffeeImageFile(fsImage, conf));
switch (command) {
case INSERT:
if(coffeeFS.getFiles().get(filename) != null) {
if (coffeeFS.getFiles().get(filename) != null) {
System.err.println("error: file \"" +
filename + "\" already exists");
break;
}
if(coffeeFS.insertFile(filename) != null) {
if (coffeeFS.insertFile(filename) != null) {
System.out.println("Inserted the local file \"" +
filename +
"\" into the file system image");
}
break;
case EXTRACT:
if(coffeeFS.extractFile(filename) == false) {
if (coffeeFS.extractFile(filename) == false) {
System.err.println("Inexistent file: " +
filename);
System.exit(1);

103
tools/coffee-manager/se/sics/coffee/CoffeeMicroLog.java Normal file
View file

@ -0,0 +1,103 @@
/*
* Copyright (c) 2009, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeMicroLog.java,v 1.1 2009/08/10 12:51:52 nvt-se Exp $
*
* @author Nicolas Tsiftes
*
*/
package se.sics.coffee;
import java.io.IOException;
public class CoffeeMicroLog extends CoffeeFile {
private int logRecords;
private int logRecordSize;
private int indexStart;
private int indexSize;
private int recordStart;
private int[] index;
public CoffeeMicroLog(CoffeeFS fs, CoffeeHeader header)
throws IOException {
super(fs, header);
CoffeeConfiguration conf = fs.getConfiguration();
if (header.logRecordSize == 0) {
logRecordSize = conf.pageSize;
}
int logAreaSize;
if (header.logRecords == 0) {
logRecords = conf.defaultLogSize / logRecordSize;
} else {
logRecords = header.logRecords;
}
indexStart = header.getPage() * conf.pageSize +
header.rawLength();
/* An index entry uses two bytes. */
indexSize = logRecords * 2;
recordStart = indexStart + indexSize;
index = new int[logRecords];
byte[] bytes = new byte[2];
for (int i = 0; i < logRecords; i++) {
coffeeFS.getImage().read(bytes, bytes.length,
indexStart + i * 2);
index[i] = bytes[1] << 8 | bytes[0];
}
}
public byte[] getRegion(int region) throws IOException {
int headerSize = header.rawLength();
int indexSize = logRecords * 2;
for(int i = logRecords - 1; i >= 0; i--) {
if(index[i] - 1 == region) {
byte[] bytes = new byte[logRecordSize];
coffeeFS.getImage().read(bytes, bytes.length,
recordStart + i * logRecordSize);
return bytes;
}
}
return null;
}
public int getLogRecords() {
return logRecords;
}
public int getLogRecordSize() {
return logRecordSize;
}
}