ExactReallocateOnly

Cache.ExactReallocateOnly property

Gets or sets a value indicating whether reallocation should be exact or not. If reallocation is non exact the performance should be higher.

public static bool ExactReallocateOnly { get; set; }

Property Value

true if reallocation is exact; otherwise, false.

Remarks

The exact reallocation will perform reallocation of additional memory only up to the upper limit specified. When passing upper limit for in-memory during reallocation the cached data will be copied to disk if possible. When passing upper limit for disk memory during reallocation the appropriate exception is thrown. The performance should be higher if this option is turned off as no additional copying will be performed if possible, however this may also lead to pass upper limits specified for memory or disk.

Examples

This example demonstrates the use of Aspose.Imaging.Cache

[C#]

// By default the cache folder is set to user's local temp directory.
// You can also specify another cache folder than default like the following:
// Cache.CacheFolder = @"D:\\MyTemp";

// Auto mode is flexible and efficient
Aspose.Imaging.Cache.CacheType = Aspose.Imaging.CacheType.Auto;

// Default value is 0, which means there is no upper limit
Aspose.Imaging.Cache.MaxDiskSpaceForCache = 1073741824; // 1 gigabyte
Aspose.Imaging.Cache.MaxMemoryForCache = 1073741824; // 1 gigabyte

// It is not recommended to change the following property as it may greatly affect the performance
Aspose.Imaging.Cache.ExactReallocateOnly = false;

// At any time you may check how many bytes currently allocated for memory or disk 
// cache by examining the following properties
long l1 = Aspose.Imaging.Cache.AllocatedDiskBytesCount;
long l2 = Aspose.Imaging.Cache.AllocatedMemoryBytesCount;

// Do some image processing as below
Aspose.Imaging.ImageOptions.GifOptions options = new Aspose.Imaging.ImageOptions.GifOptions();
options.Palette = new ColorPalette(new Aspose.Imaging.Color[] { Aspose.Imaging.Color.Red, Aspose.Imaging.Color.Blue, Aspose.Imaging.Color.Black, Aspose.Imaging.Color.White });
options.Source = new Aspose.Imaging.Sources.StreamSource(new System.IO.MemoryStream(), true);
using (Aspose.Imaging.RasterImage image = (Aspose.Imaging.RasterImage)Aspose.Imaging.Image.Create(options, 100, 100))
{
    Aspose.Imaging.Color[] pixels = new Aspose.Imaging.Color[10000];
    for (int i = 0; i < pixels.Length; i++)
    {
        pixels[i] = Aspose.Imaging.Color.White;
    }

    image.SavePixels(image.Bounds, pixels);

    // after executing the code above there will be allocated 40000 bytes in-memory.
    long diskBytes = Aspose.Imaging.Cache.AllocatedDiskBytesCount;
    long memoryBytes = Aspose.Imaging.Cache.AllocatedMemoryBytesCount;
}

// The allocation properties may be used to check whether all Aspose.Imaging objects were properly disposed.
// In case you've forgot to call dispose on some object the cache values will be different than 0.            
l1 = Aspose.Imaging.Cache.AllocatedDiskBytesCount;
l2 = Aspose.Imaging.Cache.AllocatedMemoryBytesCount;

See Also

CacheType MaxDiskSpaceForCache