public async Task <IndexAllocationMap> GetAllocation(int databaseId, PageAddress pageAddress)
{
var allocation = new IndexAllocationMap();
await BuildAllocationChain(allocation, databaseId, pageAddress);
return(allocation);
}
private async Task BuildAllocationChain(IndexAllocationMap allocationMap, int databaseId, PageAddress pageAddress)
{
while (true)
{
var page = await GetAllocationPage(databaseId, pageAddress);
if (page.Header.PageType != PageType.Iam)
{
Log.Error($"Page {pageAddress} is not an IAM page");
return;
}
allocationMap.Pages.Add(page);
allocationMap.SinglePageSlots.AddRange(page.SinglePageSlots);
if (page.Header.NextPage != PageAddress.Empty)
{
pageAddress = page.Header.NextPage;
continue;
}
break;
}
}
