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Some fixes for LevelDB SPV block store.

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This commit is contained in:
Mike Hearn 2015-04-09 16:57:28 +02:00
parent ec6f8a3c9d
commit 7d7ba9c8ef
2 changed files with 17 additions and 6 deletions
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4
core/src/main/java/org/bitcoinj/kits/WalletAppKit.java
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@ -238,7 +238,7 @@ public class WalletAppKit extends AbstractIdleService {
/**
* Tests to see if the spvchain file has an operating system file lock on it. Useful for checking if your app
* is already running. If another copy of your app is running and you start the appkit anyway, an exception will
* be thrown during the startup process. Returns false if the chain file does not exist.
* be thrown during the startup process. Returns false if the chain file does not exist or is a directory.
*/
public boolean isChainFileLocked() throws IOException {
RandomAccessFile file2 = null;
@ -246,6 +246,8 @@ public class WalletAppKit extends AbstractIdleService {
File file = new File(directory, filePrefix + ".spvchain");
if (!file.exists())
return false;
if (file.isDirectory())
return false;
file2 = new RandomAccessFile(file, "rw");
FileLock lock = file2.getChannel().tryLock();
if (lock == null)

19
core/src/main/java/org/bitcoinj/store/LevelDBBlockStore.java
View File

@ -18,7 +18,7 @@ public class LevelDBBlockStore implements BlockStore {
private static final byte[] CHAIN_HEAD_KEY = "chainhead".getBytes();
private final Context context;
private final DB db;
private DB db;
private final ByteBuffer buffer = ByteBuffer.allocate(StoredBlock.COMPACT_SERIALIZED_SIZE);
private final File path;
@ -35,14 +35,23 @@ public class LevelDBBlockStore implements BlockStore {
options.createIfMissing();
try {
db = dbFactory.open(directory, options);
initStoreIfNeeded();
tryOpen(directory, dbFactory, options);
} catch (IOException e) {
throw new BlockStoreException(e);
try {
dbFactory.repair(directory, options);
tryOpen(directory, dbFactory, options);
} catch (IOException e1) {
throw new BlockStoreException(e1);
}
}
}
private void initStoreIfNeeded() throws BlockStoreException {
private synchronized void tryOpen(File directory, DBFactory dbFactory, Options options) throws IOException, BlockStoreException {
db = dbFactory.open(directory, options);
initStoreIfNeeded();
}
private synchronized void initStoreIfNeeded() throws BlockStoreException {
if (db.get(CHAIN_HEAD_KEY) != null)
return; // Already initialised.
Block genesis = context.getParams().getGenesisBlock().cloneAsHeader();