Java GridUnsafe.putLong方法代码示例

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @return Relative pointer to a free page that was borrowed from the allocated pool.
 */
private long borrowFreePage() {
    while (true) {
        long freePageRelPtrMasked = GridUnsafe.getLong(freePageListPtr);

        long freePageRelPtr = freePageRelPtrMasked & ADDRESS_MASK;

        if (freePageRelPtr != INVALID_REL_PTR) {
            long freePageAbsPtr = absolute(freePageRelPtr);

            long nextFreePageRelPtr = GridUnsafe.getLong(freePageAbsPtr) & ADDRESS_MASK;

            long cnt = ((freePageRelPtrMasked & COUNTER_MASK) + COUNTER_INC) & COUNTER_MASK;

            if (GridUnsafe.compareAndSwapLong(null, freePageListPtr, freePageRelPtrMasked, nextFreePageRelPtr | cnt)) {
                GridUnsafe.putLong(freePageAbsPtr, PAGE_MARKER);

                return freePageRelPtr;
            }
        }
        else
            return INVALID_REL_PTR;
    }
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override public void unsafeWriteLong(long val) {
    long off = GridUnsafe.BYTE_ARR_OFF + pos;

    if (BIG_ENDIAN)
        GridUnsafe.putLongLE(data, off, val);
    else
        GridUnsafe.putLong(data, off, val);

    shift(8);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @param cacheSizes Cache sizes: cache Id in shared group mapped to its size. Not null.
 * @return Serialized cache sizes or 0-byte length array if map was empty.
 */
public byte[] serializeCacheSizes(Map<Integer, Long> cacheSizes) {
    byte[] data = new byte[cacheSizes.size() * ITEM_SIZE];
    long off = GridUnsafe.BYTE_ARR_OFF;

    for (Map.Entry<Integer, Long> entry : cacheSizes.entrySet()) {
        GridUnsafe.putInt(data, off, entry.getKey()); off += CACHE_ID_SIZE;
        GridUnsafe.putLong(data, off, entry.getValue()); off += CACHE_SIZE_SIZE;
    }

    return data;
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @param absPtr Absolute pointer to initialize.
 * @param relative Relative pointer to write.
 */
private static void initNew(long absPtr, long relative) {
    relative(absPtr, relative);

    tempBufferPointer(absPtr, INVALID_REL_PTR);

    GridUnsafe.putLong(absPtr, PAGE_MARKER);
    GridUnsafe.putInt(absPtr + PAGE_PIN_CNT_OFFSET, 0);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @param index Entry index.
 * @param grpId Cache group ID to write.
 * @param pageId Page ID to write.
 */
private void setKeyAt(int index, int grpId, long pageId) {
    long base = entryBase(index);

    GridUnsafe.putInt(base, grpId);
    GridUnsafe.putLong(base + 8, pageId);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @param pageId Page ID to release.
 */
private void releaseFreePage(long pageId) {
    int pageIdx = PageIdUtils.pageIndex(pageId);

    // Clear out flags and file ID.
    long relPtr = PageIdUtils.pageId(0, (byte)0, pageIdx);

    Segment seg = segment(pageIdx);

    long absPtr = seg.absolute(pageIdx);

    // Second, write clean relative pointer instead of page ID.
    writePageId(absPtr, relPtr);

    // Third, link the free page.
    while (true) {
        long freePageRelPtrMasked = freePageListHead.get();

        long freePageRelPtr = freePageRelPtrMasked & RELATIVE_PTR_MASK;

        GridUnsafe.putLong(absPtr, freePageRelPtr);

        if (freePageListHead.compareAndSet(freePageRelPtrMasked, relPtr)) {
            allocatedPages.decrementAndGet();

            return;
        }
    }
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @return Relative pointer to a free page that was borrowed from the allocated pool.
 */
private long borrowFreePage() {
    while (true) {
        long freePageRelPtrMasked = freePageListHead.get();

        long freePageRelPtr = freePageRelPtrMasked & ADDRESS_MASK;

        if (freePageRelPtr != INVALID_REL_PTR) {
            int pageIdx = PageIdUtils.pageIndex(freePageRelPtr);

            Segment seg = segment(pageIdx);

            long freePageAbsPtr = seg.absolute(pageIdx);
            long nextFreePageRelPtr = GridUnsafe.getLong(freePageAbsPtr) & ADDRESS_MASK;
            long cnt = ((freePageRelPtrMasked & COUNTER_MASK) + COUNTER_INC) & COUNTER_MASK;

            if (freePageListHead.compareAndSet(freePageRelPtrMasked, nextFreePageRelPtr | cnt)) {
                GridUnsafe.putLong(freePageAbsPtr, PAGE_MARKER);

                allocatedPages.incrementAndGet();

                return freePageRelPtr;
            }
        }
        else
            return INVALID_REL_PTR;
    }
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override public void writeLong(long val) {
    lastFinished = buf.remaining() >= 8;

    if (lastFinished) {
        int pos = buf.position();

        GridUnsafe.putLong(heapArr, baseOff + pos, val);

        buf.position(pos + 8);
    }
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @param arr Array.
 * @param off Offset.
 * @param val Value.
 */
public static void writeLong(byte[] arr, int off, long val) {
    long pos = GridUnsafe.BYTE_ARR_OFF + off;

    if (BIG_ENDIAN)
        GridUnsafe.putLongLE(arr, pos, val);
    else
        GridUnsafe.putLong(arr, pos, val);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override protected void writeLongFast(long val) {
    long addr = ptr + pos;

    if (BIG_ENDIAN)
        GridUnsafe.putLongLE(addr, val);
    else
        GridUnsafe.putLong(addr, val);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override public void writeLong(long val) throws IOException {
    int writePos = ensure(8);

    GridUnsafe.putLong(buf, BYTE_ARR_OFF + writePos, val);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override public void unsafeWriteLong(long val) {
    GridUnsafe.putLong(data + pos, val);

    shift(8);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override public void writeLongArray(long[] val) {
    int cnt = val.length << 3;

    ensureCapacity(pos + cnt);

    long startPos = data + pos;

    for (long item : val) {
        GridUnsafe.putLong(startPos, Long.reverseBytes(item));

        startPos += 8;
    }

    shift(cnt);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/** {@inheritDoc} */
@Override public void writeDoubleArray(double[] val) {
    int cnt = val.length << 3;

    ensureCapacity(pos + cnt);

    long startPos = data + pos;

    for (double item : val) {
        GridUnsafe.putLong(startPos, Long.reverseBytes(Double.doubleToLongBits(item)));

        startPos += 8;
    }

    shift(cnt);
}
 

import org.apache.ignite.internal.util.GridUnsafe; //导入方法依赖的package包/类
/**
 * @param idx Index.
 * @param region Region
 * @param pagesCntr Pages counter.
 */
protected PagePool(int idx, DirectMemoryRegion region, AtomicInteger pagesCntr) {
    this.idx = idx;
    this.region = region;
    this.pagesCntr = pagesCntr;

    long base = (region.address() + 7) & ~0x7;

    freePageListPtr = base;

    base += 8;

    lastAllocatedIdxPtr = base;

    base += 8;

    // Align page start by
    pagesBase = base;

    GridUnsafe.putLong(freePageListPtr, INVALID_REL_PTR);
    GridUnsafe.putLong(lastAllocatedIdxPtr, 1L);
}