skainet-io-core/sk.ainet.io/MappedRandomAccessSource

MappedRandomAccessSource

class MappedRandomAccessSource : RandomAccessSource(source)

A RandomAccessSource backed by a memory-mapped file via JvmMappedMemoryChunk.

Unlike JvmRandomAccessSource (which reads through a FileChannel into heap buffers), this variant lets the OS manage paging. Ideal for immutable model weights that are read repeatedly.

Types

Companion

object Companion

Properties

size

open override val size: Long

The total size of the source in bytes.

Functions

open override fun close()

readAt

open override fun readAt(position: Long, length: Int): ByteArray

Read bytes from the specified position.

open override fun readAt(position: Long, buffer: ByteArray, offset: Int = 0, length: Int = buffer.size): Int

Read bytes into an existing buffer.

sliceChunk

fun sliceChunk(offset: Long, length: Long): MemoryChunk

Return a MemoryChunk slice without copying — useful for loader integration.