public TitanicMMFArray(ITitanicArrayConfig <T> config)
{
this.config = config;
TSize = GetSizeInBytes(config.DataSerializer);
Length = config.Capacity;
var stream = File.Open(
config.BackingStoreFileName,
FileMode.Create,
FileAccess.ReadWrite,
FileShare.Read
);
#if MONO
//TODO try stream.SetLength(config.Capacity * TSize);
for (long b = 0; b < config.Capacity * TSize; b++)
{
stream.WriteByte(0);
}
stream.Seek(0, SeekOrigin.Begin);
#endif
mmf = MemoryMappedFile.CreateFromFile(
stream,
null,
config.Capacity * TSize,
MemoryMappedFileAccess.ReadWrite,
HandleInheritability.None,
false
);
mmva = mmf.CreateViewAccessor();
}
public override ITitanicArray <byte> CreateArray(ITitanicArrayConfig <byte> c = null)
{
return(c == null
? new TitanicMMFArray <byte>()
: new TitanicMMFArray <byte>(c)
);
}
public override ITitanicArray <double> CreateArray(ITitanicArrayConfig <double> c = null)
{
return(c == null
? new TitanicFileArray <double>()
: new TitanicFileArray <double>(c)
);
}
public TitanicSQLiteArray(ITitanicArrayConfig <T> config, int cacheSizeKB = 2000)
{
this.config = config;
TSize = GetSizeInBytes(config.DataSerializer);
SQLiteConnection.CreateFile(config.BackingStoreFileName);
sqConnection = new SQLiteConnection(
"Data Source=" + config.BackingStoreFileName
+ ";Version=3"
+ ";Synchronous=OFF"
+ ";Journal Mode=OFF"
+ ";Cache Size=-" + cacheSizeKB
);
sqConnection.Open();
string sql = "CREATE TABLE IF NOT EXISTS array ("
+ "i INTEGER PRIMARY KEY ASC,"
+ "v BLOB"
+ ");"
;
using (SQLiteCommand command = new SQLiteCommand(sql, sqConnection))
{
command.ExecuteNonQuery();
}
}
public TitanicFileArray(ITitanicArrayConfig <T> config, int cacheSize = 2000)
{
this.config = config;
store = File.Open(config.BackingStoreFileName, FileMode.Create, FileAccess.ReadWrite, FileShare.Read);
itemSize = GetSizeInBytes(config.DataSerializer);
buffer = new byte[itemSize];
InitializeFile();
cache = new LRUCache <long, T>(cacheSize);
}
public TitanicLiteDBArray(ITitanicArrayConfig <T> config, int cacheSizePages = 5000)
{
this.config = config;
TSize = GetSizeInBytes(config.DataSerializer);
db = new LiteDatabase(
"Filename=" + config.BackingStoreFileName
+ ";Journal=false"
+ ";Cache Size=" + cacheSizePages
);
collection = db.GetCollection("array");
}
public TitanicIMArray(ITitanicArrayConfig <T> config)
{
this.config = config;
TSize = GetSizeInBytes(config.DataSerializer);
pixelsPerItem = IntCeil(TSize, bytesPerPixel);
long maxPixels = config.Capacity * pixelsPerItem;
FindDimensions(maxPixels, out Width, out Height);
MagickNET.SetTempDirectory(Path.GetDirectoryName(config.BackingStoreFileName));
im = new MagickImage(MagickColor.FromRgba(0, 0, 0, 0), Width, Height);
pixels = im.GetPixels();
}
void CreateArray(ITitanicArrayConfig <long> config)
{
//return new TitanicFileArray<long>(config);
data = new TitanicMMFArray <long>(config);
}
public abstract ITitanicArray <T> CreateArray(ITitanicArrayConfig <T> c = null);
public TitanicRaptorDBArray(ITitanicArrayConfig <T> config)
{
this.config = config;
TSize = GetSizeInBytes(config.DataSerializer);
rdb = RaptorDB <long> .Open(config.BackingStoreFileName, false);
}
