Method seek

packages/platform-node-shared/src/internal/fileSystem.ts:249–262

(offset: FileSystem.SizeInput, from: FileSystem.SeekMode)

    }

    seek(offset: FileSystem.SizeInput, from: FileSystem.SeekMode) {
      const offsetSize = FileSystem.Size(offset)
      return this.semaphore.withPermits(1)(
        Effect.sync(() => {
          if (from === "start") {
            this.position = offsetSize
          } else if (from === "current") {
            this.position = this.position + offsetSize
          }

          return this.position
        })
      )
    }

    read(buffer: Uint8Array) {
      return this.semaphore.withPermits(1)(