Initial Commit

dependencies/amphp/byte-stream/lib/functions.php

@@ -0,0 +1,154 @@
+<?php
+
+namespace WP_Ultimo\Dependencies\Amp\ByteStream;
+
+use WP_Ultimo\Dependencies\Amp\Iterator;
+use WP_Ultimo\Dependencies\Amp\Loop;
+use WP_Ultimo\Dependencies\Amp\Producer;
+use WP_Ultimo\Dependencies\Amp\Promise;
+use function WP_Ultimo\Dependencies\Amp\call;
+// @codeCoverageIgnoreStart
+if (\strlen('…') !== 3) {
+    throw new \Error('The mbstring.func_overload ini setting is enabled. It must be disabled to use the stream package.');
+}
+// @codeCoverageIgnoreEnd
+if (!\defined('STDOUT')) {
+    \define('STDOUT', \fopen('php://stdout', 'w'));
+}
+if (!\defined('STDERR')) {
+    \define('STDERR', \fopen('php://stderr', 'w'));
+}
+/**
+ * @param \Amp\ByteStream\InputStream  $source
+ * @param \Amp\ByteStream\OutputStream $destination
+ *
+ * @return \Amp\Promise
+ */
+function pipe(InputStream $source, OutputStream $destination) : Promise
+{
+    return call(function () use($source, $destination) : \Generator {
+        $written = 0;
+        while (($chunk = (yield $source->read())) !== null) {
+            $written += \strlen($chunk);
+            $writePromise = $destination->write($chunk);
+            $chunk = null;
+            // free memory
+            (yield $writePromise);
+        }
+        return $written;
+    });
+}
+/**
+ * @param \Amp\ByteStream\InputStream $source
+ *
+ * @return \Amp\Promise
+ */
+function buffer(InputStream $source) : Promise
+{
+    return call(function () use($source) : \Generator {
+        $buffer = "";
+        while (($chunk = (yield $source->read())) !== null) {
+            $buffer .= $chunk;
+            $chunk = null;
+            // free memory
+        }
+        return $buffer;
+    });
+}
+/**
+ * The php://input input buffer stream for the process associated with the currently active event loop.
+ *
+ * @return ResourceInputStream
+ */
+function getInputBufferStream() : ResourceInputStream
+{
+    static $key = InputStream::class . '\\input';
+    $stream = Loop::getState($key);
+    if (!$stream) {
+        $stream = new ResourceInputStream(\fopen('php://input', 'rb'));
+        Loop::setState($key, $stream);
+    }
+    return $stream;
+}
+/**
+ * The php://output output buffer stream for the process associated with the currently active event loop.
+ *
+ * @return ResourceOutputStream
+ */
+function getOutputBufferStream() : ResourceOutputStream
+{
+    static $key = OutputStream::class . '\\output';
+    $stream = Loop::getState($key);
+    if (!$stream) {
+        $stream = new ResourceOutputStream(\fopen('php://output', 'wb'));
+        Loop::setState($key, $stream);
+    }
+    return $stream;
+}
+/**
+ * The STDIN stream for the process associated with the currently active event loop.
+ *
+ * @return ResourceInputStream
+ */
+function getStdin() : ResourceInputStream
+{
+    static $key = InputStream::class . '\\stdin';
+    $stream = Loop::getState($key);
+    if (!$stream) {
+        $stream = new ResourceInputStream(\STDIN);
+        Loop::setState($key, $stream);
+    }
+    return $stream;
+}
+/**
+ * The STDOUT stream for the process associated with the currently active event loop.
+ *
+ * @return ResourceOutputStream
+ */
+function getStdout() : ResourceOutputStream
+{
+    static $key = OutputStream::class . '\\stdout';
+    $stream = Loop::getState($key);
+    if (!$stream) {
+        $stream = new ResourceOutputStream(\STDOUT);
+        Loop::setState($key, $stream);
+    }
+    return $stream;
+}
+/**
+ * The STDERR stream for the process associated with the currently active event loop.
+ *
+ * @return ResourceOutputStream
+ */
+function getStderr() : ResourceOutputStream
+{
+    static $key = OutputStream::class . '\\stderr';
+    $stream = Loop::getState($key);
+    if (!$stream) {
+        $stream = new ResourceOutputStream(\STDERR);
+        Loop::setState($key, $stream);
+    }
+    return $stream;
+}
+function parseLineDelimitedJson(InputStream $stream, bool $assoc = \false, int $depth = 512, int $options = 0) : Iterator
+{
+    return new Producer(static function (callable $emit) use($stream, $assoc, $depth, $options) {
+        $reader = new LineReader($stream);
+        while (null !== ($line = (yield $reader->readLine()))) {
+            $line = \trim($line);
+            if ($line === '') {
+                continue;
+            }
+            /** @noinspection PhpComposerExtensionStubsInspection */
+            $data = \json_decode($line, $assoc, $depth, $options);
+            /** @noinspection PhpComposerExtensionStubsInspection */
+            $error = \json_last_error();
+            /** @noinspection PhpComposerExtensionStubsInspection */
+            if ($error !== \JSON_ERROR_NONE) {
+                /** @noinspection PhpComposerExtensionStubsInspection */
+                throw new StreamException('Failed to parse JSON: ' . \json_last_error_msg(), $error);
+            }
+            (yield $emit($data));
+        }
+    });
+}