public static Page Get(string path, uint pagenumber)
{
FileRecord record = FileRecord.Get(path, true);
byte[] bytes = record.GetContent();
JetHeader header = new JetHeader(bytes);
uint offset = GetPageOffset(pagenumber, header.PageSize);
return Get(bytes, (int)offset);
}
public static Page Get(string path, uint pagenumber)
{
FileRecord record = FileRecord.Get(path, true);
byte[] bytes = record.GetContent();
JetHeader header = new JetHeader(bytes);
uint offset = GetPageOffset(pagenumber, header.PageSize);
return(Get(bytes, (int)offset));
}
private static Page[] GetInstances(byte[] bytes)
{
JetHeader header = new JetHeader(bytes);
uint PageCount = ((uint)bytes.Length / header.PageSize) - 2;
Page[] pageArray = new Page[PageCount];
for (uint i = 1; i < PageCount; i++)
{
pageArray[i - 1] = Get(bytes, (int)GetPageOffset(i, header.PageSize));
}
return(pageArray);
}
internal Page(byte[] bytes, int offset)
{
JetHeader h = new JetHeader(bytes);
PageNumber = GetPageNumber((uint)offset, h.PageSize);
Checksum = BitConverter.ToUInt64(bytes, 0x00 + offset);
LastModificationTime = new JetDbTime(bytes, offset + 0x08);
PreviousPageNumber = BitConverter.ToUInt32(bytes, 0x10 + offset);
NextPageNumber = BitConverter.ToUInt32(bytes, 0x14 + offset);
FatherDataPage = BitConverter.ToUInt32(bytes, 0x18 + offset);
AvailableDataSize = BitConverter.ToUInt16(bytes, 0x1C + offset);
AvailableUncommittedDataSize = BitConverter.ToUInt16(bytes, 0x1E + offset);
FirstAvailableDataOffset = BitConverter.ToUInt16(bytes, 0x20 + offset);
FirstAvailablePageTag = BitConverter.ToUInt16(bytes, 0x22 + offset);
PageFlags = ((Page.JET_PAGEFLAGS)BitConverter.ToUInt32(bytes, 0x24 + offset));
Tags = DataTag.GetInstances(bytes, offset);
}
internal Page(byte[] bytes, int offset)
{
JetHeader h = new JetHeader(bytes);
PageNumber = GetPageNumber((uint)offset, h.PageSize);
Checksum = BitConverter.ToUInt64(bytes, 0x00 + offset);
LastModificationTime = new JetDbTime(bytes, offset + 0x08);
PreviousPageNumber = BitConverter.ToUInt32(bytes, 0x10 + offset);
NextPageNumber = BitConverter.ToUInt32(bytes, 0x14 + offset);
FatherDataPage = BitConverter.ToUInt32(bytes, 0x18 + offset);
AvailableDataSize = BitConverter.ToUInt16(bytes, 0x1C + offset);
AvailableUncommittedDataSize = BitConverter.ToUInt16(bytes, 0x1E + offset);
FirstAvailableDataOffset = BitConverter.ToUInt16(bytes, 0x20 + offset);
FirstAvailablePageTag = BitConverter.ToUInt16(bytes, 0x22 + offset);
PageFlags = ((Page.JET_PAGEFLAGS)BitConverter.ToUInt32(bytes, 0x24 + offset));
Tags = DataTag.GetInstances(bytes, offset);
}
private static Page[] GetInstances(byte[] bytes)
{
JetHeader header = new JetHeader(bytes);
uint PageCount = ((uint)bytes.Length / header.PageSize) - 2;
Page[] pageArray = new Page[PageCount];
for (uint i = 1; i < PageCount; i++)
{
pageArray[i - 1] = Get(bytes, (int)GetPageOffset(i, header.PageSize));
}
return pageArray;
}
