Examples with OCachePointer com.orientechnologies.orient.core.storage.cache.OCachePointer used on opensource projects

Example 1 with OCachePointer

use of com.orientechnologies.orient.core.storage.cache.OCachePointer in project orientdb by orientechnologies.

the class OAtomicOperation method addPage.

public OCacheEntry addPage(long fileId) throws IOException {
    fileId = checkFileIdCompatibilty(fileId, storageId);
    if (deletedFiles.contains(fileId))
        throw new OStorageException("File with id " + fileId + " is deleted.");
    final FileChanges changesContainer = fileChanges.get(fileId);
    assert changesContainer != null;
    final long filledUpTo = internalFilledUpTo(fileId, changesContainer);
    FilePageChanges pageChangesContainer = changesContainer.pageChangesMap.get(filledUpTo);
    assert pageChangesContainer == null;
    pageChangesContainer = new FilePageChanges();
    pageChangesContainer.isNew = true;
    changesContainer.pageChangesMap.put(filledUpTo, pageChangesContainer);
    changesContainer.maxNewPageIndex = filledUpTo;
    return new OCacheEntry(fileId, filledUpTo, new OCachePointer(null, null, new OLogSequenceNumber(-1, -1), fileId, filledUpTo), false);
}

Example 2 with OCachePointer

use of com.orientechnologies.orient.core.storage.cache.OCachePointer in project orientdb by orientechnologies.

the class OAtomicOperation method loadPage.

public OCacheEntry loadPage(long fileId, long pageIndex, boolean checkPinnedPages, final int pageCount) throws IOException {
    assert pageCount > 0;
    fileId = checkFileIdCompatibilty(fileId, storageId);
    if (deletedFiles.contains(fileId))
        throw new OStorageException("File with id " + fileId + " is deleted.");
    FileChanges changesContainer = fileChanges.get(fileId);
    if (changesContainer == null) {
        changesContainer = new FileChanges();
        fileChanges.put(fileId, changesContainer);
    }
    if (changesContainer.isNew) {
        if (pageIndex <= changesContainer.maxNewPageIndex)
            return new OCacheEntry(fileId, pageIndex, new OCachePointer(null, null, new OLogSequenceNumber(-1, -1), fileId, pageIndex), false);
        else
            return null;
    } else {
        FilePageChanges pageChangesContainer = changesContainer.pageChangesMap.get(pageIndex);
        final long filledUpTo = internalFilledUpTo(fileId, changesContainer);
        if (pageIndex < filledUpTo) {
            if (pageChangesContainer == null) {
                pageChangesContainer = new FilePageChanges();
                changesContainer.pageChangesMap.put(pageIndex, pageChangesContainer);
            }
            if (pageChangesContainer.isNew)
                return new OCacheEntry(fileId, pageIndex, new OCachePointer(null, null, new OLogSequenceNumber(-1, -1), fileId, pageIndex), false);
            else
                return pageCache.loadPage(fileId, pageIndex, checkPinnedPages, writeCache, pageCount);
        }
    }
    return null;
}

Example 3 with OCachePointer

use of com.orientechnologies.orient.core.storage.cache.OCachePointer in project orientdb by orientechnologies.

the class SBTreeValuePageTest method testFreeListPointer.

public void testFreeListPointer() throws Exception {
    OByteBufferPool bufferPool = OByteBufferPool.instance();
    ByteBuffer buffer = bufferPool.acquireDirect(true);
    OCachePointer cachePointer = new OCachePointer(buffer, bufferPool, new OLogSequenceNumber(0, 0), 0, 0);
    cachePointer.incrementReferrer();
    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    cacheEntry.acquireExclusiveLock();
    OSBTreeValuePage valuePage = new OSBTreeValuePage(cacheEntry, null, true);
    valuePage.setNextFreeListPage(124);
    Assert.assertEquals(valuePage.getNextFreeListPage(), 124);
    cacheEntry.releaseExclusiveLock();
    cachePointer.decrementReferrer();
}

Example 4 with OCachePointer

use of com.orientechnologies.orient.core.storage.cache.OCachePointer in project orientdb by orientechnologies.

the class OSBTreeBonsaiLeafBucketTest method testSetRightSibling.

public void testSetRightSibling() throws Exception {
    OByteBufferPool bufferPool = OByteBufferPool.instance();
    ByteBuffer buffer = bufferPool.acquireDirect(true);
    OCachePointer cachePointer = new OCachePointer(buffer, bufferPool, new OLogSequenceNumber(0, 0), 0, 0);
    cachePointer.incrementReferrer();
    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    cacheEntry.acquireExclusiveLock();
    OSBTreeBonsaiBucket<Long, OIdentifiable> treeBucket = new OSBTreeBonsaiBucket<Long, OIdentifiable>(cacheEntry, 0, true, OLongSerializer.INSTANCE, OLinkSerializer.INSTANCE, null, null);
    final OBonsaiBucketPointer p = new OBonsaiBucketPointer(123, 8192 * 2);
    treeBucket.setRightSibling(p);
    Assert.assertEquals(treeBucket.getRightSibling(), p);
    cacheEntry.releaseExclusiveLock();
    cachePointer.decrementReferrer();
}

Example 5 with OCachePointer

use of com.orientechnologies.orient.core.storage.cache.OCachePointer in project orientdb by orientechnologies.

the class OSBTreeBonsaiLeafBucketTest method testShrink.

public void testShrink() throws Exception {
    long seed = System.currentTimeMillis();
    System.out.println("testShrink seed : " + seed);
    TreeSet<Long> keys = new TreeSet<Long>();
    Random random = new Random(seed);
    while (keys.size() < 2 * OSBTreeBonsaiBucket.MAX_BUCKET_SIZE_BYTES / OLongSerializer.LONG_SIZE) {
        keys.add(random.nextLong());
    }
    OByteBufferPool bufferPool = OByteBufferPool.instance();
    ByteBuffer buffer = bufferPool.acquireDirect(true);
    OCachePointer cachePointer = new OCachePointer(buffer, bufferPool, new OLogSequenceNumber(0, 0), 0, 0);
    OCacheEntry cacheEntry = new OCacheEntry(0, 0, cachePointer, false);
    cacheEntry.acquireExclusiveLock();
    cachePointer.incrementReferrer();
    OSBTreeBonsaiBucket<Long, OIdentifiable> treeBucket = new OSBTreeBonsaiBucket<Long, OIdentifiable>(cacheEntry, 0, true, OLongSerializer.INSTANCE, OLinkSerializer.INSTANCE, null, null);
    int index = 0;
    for (Long key : keys) {
        if (!treeBucket.addEntry(index, new OSBTreeBonsaiBucket.SBTreeEntry<Long, OIdentifiable>(OBonsaiBucketPointer.NULL, OBonsaiBucketPointer.NULL, key, new ORecordId(index, index)), true))
            break;
        index++;
    }
    int originalSize = treeBucket.size();
    treeBucket.shrink(treeBucket.size() / 2);
    Assert.assertEquals(treeBucket.size(), index / 2);
    index = 0;
    final Map<Long, Integer> keyIndexMap = new HashMap<Long, Integer>();
    Iterator<Long> keysIterator = keys.iterator();
    while (keysIterator.hasNext() && index < treeBucket.size()) {
        Long key = keysIterator.next();
        keyIndexMap.put(key, index);
        index++;
    }
    for (Map.Entry<Long, Integer> keyIndexEntry : keyIndexMap.entrySet()) {
        int bucketIndex = treeBucket.find(keyIndexEntry.getKey());
        Assert.assertEquals(bucketIndex, (int) keyIndexEntry.getValue());
    }
    int keysToAdd = originalSize - treeBucket.size();
    int addedKeys = 0;
    while (keysIterator.hasNext() && index < originalSize) {
        Long key = keysIterator.next();
        if (!treeBucket.addEntry(index, new OSBTreeBonsaiBucket.SBTreeEntry<Long, OIdentifiable>(OBonsaiBucketPointer.NULL, OBonsaiBucketPointer.NULL, key, new ORecordId(index, index)), true))
            break;
        keyIndexMap.put(key, index);
        index++;
        addedKeys++;
    }
    for (Map.Entry<Long, Integer> keyIndexEntry : keyIndexMap.entrySet()) {
        OSBTreeBonsaiBucket.SBTreeEntry<Long, OIdentifiable> entry = treeBucket.getEntry(keyIndexEntry.getValue());
        Assert.assertEquals(entry, new OSBTreeBonsaiBucket.SBTreeEntry<Long, OIdentifiable>(OBonsaiBucketPointer.NULL, OBonsaiBucketPointer.NULL, keyIndexEntry.getKey(), new ORecordId(keyIndexEntry.getValue(), keyIndexEntry.getValue())));
    }
    Assert.assertEquals(treeBucket.size(), originalSize);
    Assert.assertEquals(addedKeys, keysToAdd);
    cacheEntry.releaseExclusiveLock();
    cachePointer.decrementReferrer();
}