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