Initial commit

src/SerialFactory.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace NoccyLabs\React\Serial;
+
+use Evenement\EventEmitterTrait;
+use React\EventLoop\Loop;
+use React\Promise\Deferred;
+use React\Promise\PromiseInterface;
+use React\Stream\DuplexResourceStream;
+use React\Stream\ReadableStreamInterface;
+use React\Stream\WritableStreamInterface;
+
+class SerialFactory
+{
+    /**
+     *
+     *
+     * @param string $device
+     * @param int $baud
+     * @param int $bits Bits per byte
+     * @param Parity $parity
+     * @param int $stop Stopbits
+     * @return PromiseInterface<DuplexResourceStream>
+     */
+    public function open(string $device, int $baud = 9600, int $bits = 8, Parity $parity = Parity::NONE, int $stop = 1): PromiseInterface
+    {
+        $deferred = new Deferred();
+
+        Loop::futureTick(static function () use ($device, $baud, $bits, $parity, $stop, $deferred) {
+            $cmd = "stty -F ".escapeshellarg($device)." ".$baud." ".$parity->value." ".escapeshellarg("cs".$bits)." ".($stop==1?"-cstopb":"cstopb")." -echo cbreak min 0 time 0";
+            //echo $cmd."\n";
+            exec($cmd);
+            $fd = fopen($device, "a+");
+            $stream = new DuplexResourceStream($fd);
+            $deferred->resolve($stream);
+        });
+
+        return $deferred->promise();
+    }
+
+
+}
+