/// <summary>
/// Persist all dirty pages
/// </summary>
public void PersistDirtyPages()
{
foreach (var page in this.GetDirtyPages())
{
_disk.WritePage(page);
}
}
/// <summary>
/// Create a empty database ready to be used using connectionString as parameters
/// </summary>
public static void CreateNewDatafile(ConnectionString connectionString)
{
using (var stream = File.Create(connectionString.Filename))
{
using (var writer = new BinaryWriter(stream))
{
DiskService.WritePage(writer, new HeaderPage());
}
}
}
/// <summary>
/// Persist all dirty pages
/// </summary>
public void PersistDirtyPages()
{
// alocate datafile file first (only when file need to grow)
_disk.AllocateDiskSpace((this.Header.LastPageID + 1) * BasePage.PAGE_SIZE);
foreach (var page in this.GetDirtyPages())
{
_disk.WritePage(page);
}
}
/// <summary>
/// Create a empty database ready to be used using connectionString as parameters
/// </summary>
private static void CreateNewDatabase(ConnectionString connectionString)
{
using (var stream = File.Create(connectionString.Filename))
{
using (var writer = new BinaryWriter(stream))
{
// creating header + master collection
DiskService.WritePage(writer, new HeaderPage {
PageID = 0, LastPageID = 1
});
DiskService.WritePage(writer, new CollectionPage {
PageID = 1, CollectionName = "_master"
});
}
}
}
private void DoRecovery(BinaryReader reader)
{
// open disk service
using (var disk = new DiskService(_connectionString))
{
disk.Lock();
// while pages, read from redo, write on disk
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
var page = this.ReadPageJournal(reader);
disk.WritePage(page);
}
reader.Close();
disk.UnLock();
}
}
/// <summary>
/// Create a empty database ready to be used using connectionString as parameters
/// </summary>
private static void CreateNewDatabase(ConnectionString connectionString)
{
using (var stream = File.Create(connectionString.Filename))
{
using (var writer = new BinaryWriter(stream))
{
// creating header + master collection
DiskService.WritePage(writer, new HeaderPage {
PageID = 0, LastPageID = 1
});
DiskService.WritePage(writer, new CollectionPage {
PageID = 1, CollectionName = "_master"
});
}
}
// create _id index on _master collection
using (var db = new LiteEngine("filename=" + connectionString.Filename + ";journal=false"))
{
db.GetCollection("_master").EnsureIndex("_id", true);
}
}
/// <summary>
/// Write a page from memory to disk
/// </summary>
public void WritePage(BasePage page)
{
DiskService.WritePage(GetWriter(), page);
}