Method unpin

src/storage/disk_array.cpp:368–378

}

void DiskArrayInternal::WriteIterator::unpin() {
    if (shadowPageAndFrame.shadowPage != INVALID_PAGE_IDX) {
        // unpin current page
        diskArray.shadowFile->getShadowingFH().unpinPage(shadowPageAndFrame.shadowPage);
        shadowPageAndFrame.shadowPage = INVALID_PAGE_IDX;
    } else if (shadowPageAndFrame.originalPage != INVALID_PAGE_IDX) {
        diskArray.fileHandle.setLockedPageDirty(shadowPageAndFrame.originalPage);
        diskArray.fileHandle.unpinPage(shadowPageAndFrame.originalPage);
        shadowPageAndFrame.originalPage = INVALID_PAGE_IDX;
    }
}

void DiskArrayInternal::WriteIterator::getPage(page_idx_t newPageIdx, bool isNewlyAdded) {
    unpin();