CommitChanges() public method

Occurs when committing the following data to the disk. This will copy any pending data to the disk in a manner that will protect against corruption.
public CommitChanges ( FileHeaderBlock header ) : void
header FileHeaderBlock
return void
DiskIo Class Documentation
Beispiel #1
0
        private static void TestReadAndWrites(DiskIo stream)
        {
            FileHeaderBlock header = stream.LastCommittedHeader;
            header = header.CloneEditable();
            SubFileHeader node = header.CreateNewFile(SubFileName.CreateRandom());
            header.CreateNewFile(SubFileName.CreateRandom());
            header.CreateNewFile(SubFileName.CreateRandom());

            SubFileStream ds = new SubFileStream(stream, node, header, false);
            TestSingleByteWrite(ds);
            TestSingleByteRead(ds);

            TestCustomSizeWrite(ds, 5);
            TestCustomSizeRead(ds, 5);

            TestCustomSizeWrite(ds, BlockDataLength + 20);
            TestCustomSizeRead(ds, BlockDataLength + 20);
            stream.CommitChanges(header);
        }
Beispiel #2
0
        private static void TestReadAndWritesWithCommit(DiskIo stream)
        {
            FileHeaderBlock header;
            SubFileHeader node;
            SubFileStream ds, ds1, ds2;
            //Open The File For Editing
            header = stream.LastCommittedHeader.CloneEditable();
            node = header.Files[0];
            ds = new SubFileStream(stream, node, header, false);
            TestSingleByteWrite(ds);
            stream.CommitChanges(header);

            header = stream.LastCommittedHeader;
            node = header.Files[0];
            ds1 = ds = new SubFileStream(stream, node, header, true);
            TestSingleByteRead(ds);

            //Open The File For Editing
            header = stream.LastCommittedHeader.CloneEditable();
            node = header.Files[0];
            ds = new SubFileStream(stream, node, header, false);
            TestCustomSizeWrite(ds, 5);
            stream.CommitChanges(header);

            header = stream.LastCommittedHeader;
            node = header.Files[0];
            ds2 = ds = new SubFileStream(stream, node, header, true);
            TestCustomSizeRead(ds, 5);

            //Open The File For Editing
            header = stream.LastCommittedHeader.CloneEditable();
            node = header.Files[0];
            ds = new SubFileStream(stream, node, header, false);
            TestCustomSizeWrite(ds, BlockDataLength + 20);
            stream.CommitChanges(header);

            header = stream.LastCommittedHeader;
            node = header.Files[0];
            ds = new SubFileStream(stream, node, header, true);
            TestCustomSizeRead(ds, BlockDataLength + 20);

            //check old versions of the file
            TestSingleByteRead(ds1);
            TestCustomSizeRead(ds2, 5);
        }
Beispiel #3
0
        private static void TestReadAndWritesToDifferentFilesWithCommit(DiskIo stream)
        {
            FileHeaderBlock header;

            SubFileStream ds;
            //Open The File For Editing
            header = stream.LastCommittedHeader.CloneEditable();
            ds = new SubFileStream(stream, header.Files[0], header, false);
            TestSingleByteWrite(ds);
            ds = new SubFileStream(stream, header.Files[1], header, false);
            TestCustomSizeWrite(ds, 5);
            ds = new SubFileStream(stream, header.Files[2], header, false);
            TestCustomSizeWrite(ds, BlockDataLength + 20);
            stream.CommitChanges(header);

            header = stream.LastCommittedHeader;
            ds = new SubFileStream(stream, header.Files[0], header, true);
            TestSingleByteRead(ds);
            ds = new SubFileStream(stream, header.Files[1], header, true);
            TestCustomSizeRead(ds, 5);
            ds = new SubFileStream(stream, header.Files[2], header, true);
            TestCustomSizeRead(ds, BlockDataLength + 20);
        }