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Open files in sync mode. This forces use of fsync() at the right times, and may help resolve corruption issues observed on Android devices. Updates issue 66.

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This commit is contained in:
Mike Hearn
2011-09-05 12:22:42 +00:00
parent f4e54046f0
commit c808ba89d2
1 changed files with 4 additions and 2 deletions
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6
src/com/google/bitcoin/store/BoundedOverheadBlockStore.java
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@@ -156,7 +156,8 @@ public class BoundedOverheadBlockStore implements BlockStore {
if (!file.delete())
throw new BlockStoreException("Could not delete old store in order to recreate it");
}
this.file = new RandomAccessFile(file, "rw"); // Create fresh.
// Create fresh. The s stands for synchronous and ensures data is fsynced to disk at the right times.
this.file = new RandomAccessFile(file, "rws");
this.channel = this.file.getChannel();
this.file.write(FILE_FORMAT_VERSION);
} catch (IOException e1) {
@@ -179,7 +180,8 @@ public class BoundedOverheadBlockStore implements BlockStore {
private void load(File file) throws IOException, BlockStoreException {
log.info("Reading block store from {}", file);
this.file = new RandomAccessFile(file, "rw");
// Open in synchronous mode. See above.
this.file = new RandomAccessFile(file, "rws");
try {
channel = this.file.getChannel();
// Read a version byte.