1 files changed, 69 insertions, 0 deletions
diff --git a/runtime/commonMain/src/kotlinx/io/Buffers.kt b/runtime/commonMain/src/kotlinx/io/Buffers.kt
new file mode 100644
index 00000000..86401b63
--- /dev/null
+++ b/runtime/commonMain/src/kotlinx/io/Buffers.kt
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kotlinx.io
+
+expect class ByteBuffer {
+
+    fun order(order: ByteOrder): ByteBuffer
+    fun clear(): ByteBuffer
+    fun flip(): ByteBuffer
+
+    fun get(): Byte
+    fun get(index: Int): Byte
+    fun get(dst: ByteArray, offset: Int, cnt: Int): Unit
+    fun getChar(): Char
+    fun getChar(index: Int): Char
+    fun getShort(): Short
+    fun getShort(index: Int): Short
+    fun getInt(): Int
+    fun getInt(index: Int): Int
+    fun getLong(): Long
+    fun getLong(index: Int): Long
+    fun getFloat(): Float
+    fun getFloat(index: Int): Float
+    fun getDouble(): Double
+    fun getDouble(index: Int): Double
+
+    fun put(value: Byte): ByteBuffer
+    fun put(value: Byte, index: Int): ByteBuffer
+    fun put(src: ByteArray): ByteBuffer
+    fun put(src: ByteArray, offset: Int, cnt: Int): ByteBuffer
+
+    fun putChar(value: Char): ByteBuffer
+    fun putChar(value: Char, index: Int): ByteBuffer
+    fun putShort(value: Short): ByteBuffer
+    fun putShort(value: Short, index: Int): ByteBuffer
+    fun putInt(value: Int): ByteBuffer
+    fun putInt(value: Int, index: Int): ByteBuffer
+    fun putLong(value: Long): ByteBuffer
+    fun putLong(value: Long, index: Int): ByteBuffer
+    fun putFloat(value: Float): ByteBuffer
+    fun putFloat(value: Float, index: Int): ByteBuffer
+    fun putDouble(value: Double): ByteBuffer
+    fun putDouble(value: Double, index: Int): ByteBuffer
+
+    fun array(): ByteArray
+
+
+    companion object {
+        fun allocate(capacity: Int): ByteBuffer
+    }
+}
+
+enum class ByteOrder {
+    LITTLE_ENDIAN, BIG_ENDIAN
+}