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3rdparty/aws/aws-crt-php/src/AWS/CRT/IO/InputStream.php

@@ -0,0 +1,50 @@
+<?php
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+namespace AWS\CRT\IO;
+
+use AWS\CRT\NativeResource as NativeResource;
+
+final class InputStream extends NativeResource {
+    private $stream = null;
+
+    const SEEK_BEGIN = 0;
+    const SEEK_END = 2;
+
+    public function __construct($stream) {
+        parent::__construct();
+        $this->stream = $stream;
+        $options = self::$crt->input_stream_options_new();
+        // The stream implementation in native just converts the PHP stream into
+        // a native php_stream* and executes operations entirely in native
+        self::$crt->input_stream_options_set_user_data($options, $stream);
+        $this->acquire(self::$crt->input_stream_new($options));
+        self::$crt->input_stream_options_release($options);
+    }
+
+    public function __destruct() {
+        $this->release();
+        parent::__destruct();
+    }
+
+    public function eof() {
+        return self::$crt->input_stream_eof($this->native);
+    }
+
+    public function length() {
+        return self::$crt->input_stream_get_length($this->native);
+    }
+
+    public function read($length = 0) {
+        if ($length == 0) {
+            $length = $this->length();
+        }
+        return self::$crt->input_stream_read($this->native, $length);
+    }
+
+    public function seek($offset, $basis) {
+        return self::$crt->input_stream_seek($this->native, $offset, $basis);
+    }
+}