* Encode file chunk
(
fileId: string,
chunkIndex: number,
chunkData: ArrayBuffer,
)
| 68 | * Encode file chunk |
| 69 | */ |
| 70 | static encodeFileChunk( |
| 71 | fileId: string, |
| 72 | chunkIndex: number, |
| 73 | chunkData: ArrayBuffer, |
| 74 | ): Uint8Array { |
| 75 | const fileIdBytes = new TextEncoder().encode(fileId) |
| 76 | |
| 77 | // File ID length (2 bytes) |
| 78 | const fileIdLengthArray = new Uint8Array(2) |
| 79 | fileIdLengthArray[0] = (fileIdBytes.length & 0xff00) >> 8 |
| 80 | fileIdLengthArray[1] = fileIdBytes.length & 0xff |
| 81 | |
| 82 | // Chunk index (2 bytes) |
| 83 | const chunkIndexArray = new Uint8Array(2) |
| 84 | chunkIndexArray[0] = (chunkIndex & 0xff00) >> 8 |
| 85 | chunkIndexArray[1] = chunkIndex & 0xff |
| 86 | |
| 87 | // Combine data: [fileId length] + [fileId] + [chunk index] + [chunk data] |
| 88 | const totalLength = 2 + fileIdBytes.length + 2 + chunkData.byteLength |
| 89 | const encodedData = new Uint8Array(totalLength) |
| 90 | |
| 91 | let offset = 0 |
| 92 | encodedData.set(fileIdLengthArray, offset) |
| 93 | offset += 2 |
| 94 | encodedData.set(fileIdBytes, offset) |
| 95 | offset += fileIdBytes.length |
| 96 | encodedData.set(chunkIndexArray, offset) |
| 97 | offset += 2 |
| 98 | encodedData.set(new Uint8Array(chunkData), offset) |
| 99 | |
| 100 | return encodedData |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Encodes a metadata message |
no outgoing calls
no test coverage detected