io

src/main/kotlin/blitz/io/File.kt

@@ -0,0 +1,34 @@
+package blitz.io
+
+import blitz.ByteBatchSequence
+import kotlinx.io.Buffer
+import kotlinx.io.files.SystemFileSystem
+
+@JvmInline
+value class File internal constructor(
+    val path: Path
+)
+
+fun File.read(): ByteBatchSequence =
+    path.toKotlinxPath().let {
+        { SystemFileSystem.source(it) }
+    }.readerSequence()
+
+private fun File.writeAppendFrom(seq: ByteBatchSequence, append: Boolean) {
+    val path = path.toKotlinxPath()
+    SystemFileSystem.sink(path, append).use { sink ->
+        val iter = seq.iterator()
+        while (iter.hasNext()) {
+            val batch = iter.nextBytes(8192)
+            val buff = Buffer()
+            buff.write(batch)
+            sink.write(buff, buff.size)
+        }
+    }
+}
+
+fun File.write(seq: ByteBatchSequence) =
+    writeAppendFrom(seq, false)
+
+fun File.append(seq: ByteBatchSequence) =
+    writeAppendFrom(seq, true)