Examples with PageMetaIO org.apache.ignite.internal.processors.cache.persistence.tree.io.PageMetaIO used on opensource projects

Example 6 with PageMetaIO

use of org.apache.ignite.internal.processors.cache.persistence.tree.io.PageMetaIO in project ignite by apache.

the class GridCacheOffheapManager method getOrAllocateCacheMetas.

/**
 * @return Meta root pages info.
 * @throws IgniteCheckedException If failed.
 */
private Metas getOrAllocateCacheMetas() throws IgniteCheckedException {
    PageMemoryEx pageMem = (PageMemoryEx) grp.dataRegion().pageMemory();
    IgniteWriteAheadLogManager wal = ctx.wal();
    int grpId = grp.groupId();
    long metaId = pageMem.metaPageId(grpId);
    long metaPage = pageMem.acquirePage(grpId, metaId);
    try {
        final long pageAddr = pageMem.writeLock(grpId, metaId, metaPage);
        boolean allocated = false;
        try {
            long metastoreRoot, reuseListRoot;
            if (PageIO.getType(pageAddr) != PageIO.T_META) {
                PageMetaIO pageIO = PageMetaIO.VERSIONS.latest();
                pageIO.initNewPage(pageAddr, metaId, pageMem.pageSize());
                metastoreRoot = pageMem.allocatePage(grpId, PageIdAllocator.INDEX_PARTITION, PageMemory.FLAG_IDX);
                reuseListRoot = pageMem.allocatePage(grpId, PageIdAllocator.INDEX_PARTITION, PageMemory.FLAG_IDX);
                pageIO.setTreeRoot(pageAddr, metastoreRoot);
                pageIO.setReuseListRoot(pageAddr, reuseListRoot);
                if (PageHandler.isWalDeltaRecordNeeded(pageMem, grpId, metaId, metaPage, wal, null))
                    wal.log(new MetaPageInitRecord(grpId, metaId, pageIO.getType(), pageIO.getVersion(), metastoreRoot, reuseListRoot));
                allocated = true;
            } else {
                PageMetaIO pageIO = PageIO.getPageIO(pageAddr);
                metastoreRoot = pageIO.getTreeRoot(pageAddr);
                reuseListRoot = pageIO.getReuseListRoot(pageAddr);
                assert reuseListRoot != 0L;
            }
            return new Metas(new RootPage(new FullPageId(metastoreRoot, grpId), allocated), new RootPage(new FullPageId(reuseListRoot, grpId), allocated));
        } finally {
            pageMem.writeUnlock(grpId, metaId, metaPage, null, allocated);
        }
    } finally {
        pageMem.releasePage(grpId, metaId, metaPage);
    }
}

Example 7 with PageMetaIO

use of org.apache.ignite.internal.processors.cache.persistence.tree.io.PageMetaIO in project ignite by apache.

the class GridCacheOffheapManager method saveMeta.

/**
 * @param ctx Context.
 */
private void saveMeta(Context ctx) throws IgniteCheckedException {
    int grpId = grp.groupId();
    PageMemoryEx pageMem = (PageMemoryEx) grp.dataRegion().pageMemory();
    IgniteWriteAheadLogManager wal = this.ctx.wal();
    long metaPageId = pageMem.metaPageId(grpId);
    long metaPage = pageMem.acquirePage(grpId, metaPageId);
    try {
        long metaPageAddr = pageMem.writeLock(grpId, metaPageId, metaPage);
        try {
            PageMetaIO metaIo = PageMetaIO.getPageIO(metaPageAddr);
            long nextSnapshotTag = metaIo.getNextSnapshotTag(metaPageAddr);
            metaIo.setNextSnapshotTag(metaPageAddr, nextSnapshotTag + 1);
            if (log != null && log.isDebugEnabled())
                log.debug("Save next snapshot before checkpoint start for grId = " + grpId + ", nextSnapshotTag = " + nextSnapshotTag);
            if (PageHandler.isWalDeltaRecordNeeded(pageMem, grpId, metaPageId, metaPage, wal, null))
                wal.log(new MetaPageUpdateNextSnapshotId(grpId, metaPageId, nextSnapshotTag + 1));
            addPartition(null, ctx.partitionStatMap(), metaPageAddr, metaIo, grpId, PageIdAllocator.INDEX_PARTITION, this.ctx.pageStore().pages(grpId, PageIdAllocator.INDEX_PARTITION), -1);
        } finally {
            pageMem.writeUnlock(grpId, metaPageId, metaPage, null, true);
        }
    } finally {
        pageMem.releasePage(grpId, metaPageId, metaPage);
    }
}