skainet-io-core/sk.ainet.io/[wasmJs]JsBlobRandomAccessSource

JsBlobRandomAccessSource

class JsBlobRandomAccessSource : RandomAccessSource(source)

WASM JS implementation of RandomAccessSource using Blob API.

Uses Blob.slice() for efficient random access to file data without loading the entire file into memory.

Important: Browser Blob operations are inherently asynchronous. This implementation pre-loads metadata section during open for synchronous access via readAt, and provides readAtAsync for accessing data beyond the preloaded buffer.

Types

Companion

object Companion

Properties

preloadedSize

val preloadedSize: Int

The size of the preloaded buffer in bytes. Reads within this range are synchronous.

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, length: Int): Int

Read bytes into an existing buffer.

readAtAsync

suspend fun readAtAsync(position: Long, length: Int): ByteArray

Asynchronously read bytes from any position.