From a40b276f0b0b1d44d262acdf63966f6bba9407bd Mon Sep 17 00:00:00 2001
From: Kurt Thiemann <kurt@aternos.org>
Date: Fri, 13 Sep 2024 12:06:35 +0200
Subject: [PATCH 1/3] open std streams if STDIN, STDOUT, or STDERR are not
 defined

---
 src/Communication/StdStreams.php | 82 ++++++++++++++++++++++++++++++++
 src/Runtime/RuntimeProcess.php   | 10 ++--
 2 files changed, 88 insertions(+), 4 deletions(-)
 create mode 100644 src/Communication/StdStreams.php

diff --git a/src/Communication/StdStreams.php b/src/Communication/StdStreams.php
new file mode 100644
index 0000000..35a308e
--- /dev/null
+++ b/src/Communication/StdStreams.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Aternos\Taskmaster\Communication;
+
+class StdStreams
+{
+    protected static self $instance;
+
+    /**
+     * @var resource|null
+     */
+    protected $stdin = null;
+
+    /**
+     * @var resource|null
+     */
+    protected $stdout = null;
+
+    /**
+     * @var resource|null
+     */
+    protected $stderr = null;
+
+    /**
+     * @return static
+     */
+    public static function getInstance(): static
+    {
+        if (!isset(self::$instance)) {
+            self::$instance = new static();
+        }
+        return self::$instance;
+    }
+
+    /**
+     * @return resource
+     */
+    public function getStdin()
+    {
+        if ($this->stdin === null) {
+            if (defined("STDIN")) {
+                $this->stdin = STDIN;
+            } else {
+                $this->stdin = fopen("php://stdin", "r");
+            }
+        }
+
+        return $this->stdin;
+    }
+
+    /**
+     * @return resource
+     */
+    public function getStdout()
+    {
+        if ($this->stdout === null) {
+            if (defined("STDOUT")) {
+                $this->stdout = STDOUT;
+            } else {
+                $this->stdout = fopen("php://stdout", "w");
+            }
+        }
+
+        return $this->stdout;
+    }
+
+    /**
+     * @return resource
+     */
+    public function getStderr()
+    {
+        if ($this->stderr === null) {
+            if (defined("STDERR")) {
+                $this->stderr = STDERR;
+            } else {
+                $this->stderr = fopen("php://stderr", "w");
+            }
+        }
+
+        return $this->stderr;
+    }
+}
diff --git a/src/Runtime/RuntimeProcess.php b/src/Runtime/RuntimeProcess.php
index 3728081..5f92c93 100644
--- a/src/Runtime/RuntimeProcess.php
+++ b/src/Runtime/RuntimeProcess.php
@@ -4,6 +4,7 @@
 
 use Aternos\Taskmaster\Communication\Socket\SocketInterface;
 use Aternos\Taskmaster\Communication\Socket\SocketPair;
+use Aternos\Taskmaster\Communication\StdStreams;
 use Aternos\Taskmaster\TaskmasterOptions;
 
 /**
@@ -33,15 +34,16 @@ public function __construct(TaskmasterOptions $options, string $runtimeClass)
     {
         $socketPair = new SocketPair();
         $this->socket = $socketPair->getParentSocket();
+        $stdStreams = StdStreams::getInstance();
         $this->process = proc_open([
             $options->getPhpExecutable(),
             static::BIN_PATH,
             $options->getBootstrap(),
             $runtimeClass
         ], [
-            0 => STDIN,
-            1 => STDOUT,
-            2 => STDERR,
+            0 => $stdStreams->getStdin(),
+            1 => $stdStreams->getStdout(),
+            2 => $stdStreams->getStderr(),
             3 => $socketPair->getChildSocket()->getStream(),
         ], $pipes);
         $socketPair->closeChildSocket();
@@ -83,4 +85,4 @@ public function isRunning(): bool
         }
         return proc_get_status($this->process)["running"];
     }
-}
\ No newline at end of file
+}

From 61a06ca005e83654639727f7904b2d62783af77a Mon Sep 17 00:00:00 2001
From: Kurt Thiemann <kurt@aternos.org>
Date: Fri, 13 Sep 2024 12:11:10 +0200
Subject: [PATCH 2/3] make StdStreams instance null by default

---
 src/Communication/StdStreams.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Communication/StdStreams.php b/src/Communication/StdStreams.php
index 35a308e..53cd6fa 100644
--- a/src/Communication/StdStreams.php
+++ b/src/Communication/StdStreams.php
@@ -4,7 +4,7 @@
 
 class StdStreams
 {
-    protected static self $instance;
+    protected static ?self $instance = null;
 
     /**
      * @var resource|null
@@ -26,7 +26,7 @@ class StdStreams
      */
     public static function getInstance(): static
     {
-        if (!isset(self::$instance)) {
+        if (self::$instance === null) {
             self::$instance = new static();
         }
         return self::$instance;

From a977d4ec7f3abf36daa38bb9ac3d0711c923572f Mon Sep 17 00:00:00 2001
From: Kurt Thiemann <kurt@aternos.org>
Date: Fri, 13 Sep 2024 12:12:23 +0200
Subject: [PATCH 3/3] use static instead of self

---
 src/Communication/StdStreams.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Communication/StdStreams.php b/src/Communication/StdStreams.php
index 53cd6fa..cf46b1c 100644
--- a/src/Communication/StdStreams.php
+++ b/src/Communication/StdStreams.php
@@ -26,10 +26,10 @@ class StdStreams
      */
     public static function getInstance(): static
     {
-        if (self::$instance === null) {
-            self::$instance = new static();
+        if (static::$instance === null) {
+            static::$instance = new static();
         }
-        return self::$instance;
+        return static::$instance;
     }
 
     /**