Update in README.

Trimmed down the shared memory block size.

README.md

@@ -1,10 +1,12 @@
 # joopschilder/php-async
 Asynchronous PHP callable processing with return values via SysV shared memory.<br/>
 Requires the `php-sysvshm` extension.<br/>
-Works with PHP >= 5.3 due to `shm_attach(...)` returning a resource instead of an int.<br/>
+Works with PHP >= 5.3 due to `shm_attach(...)` returning a resource instead of an int.<br/><br/>
+<b>Note:</b> This package should not be used in a CGI environment, as each PHP runtime that makes a call on the async functions WILL
+create an 8MB shared memory block in RAM. If you run out of memory: you have been warned.
 <br/>
-<b>Note:</b> This project is merely an experiment. It is, however, available on packagist.
-If you think your project lacks witchcraft combined with black magic, just add this package to your `composer.json`:
+<b>Note:</b> This project is an experiment. It is, however, available on packagist.
+If you think your project lacks witchcraft and black magic, just add this package to your `composer.json`:
 ```json
 {
     "require": {

src/Asynchronous.php

@@ -8,7 +8,7 @@ namespace JoopSchilder\Asynchronous;
  */
 class Asynchronous
 {
-	public const BLOCK_SIZE_MB = 32;
+	public const BLOCK_SIZE_MB = 8;
 	private const BLOCK_SIZE_BYTES = self::BLOCK_SIZE_MB * (1024 ** 2);
 
 	/** @var Asynchronous|null */
@@ -75,7 +75,7 @@ class Asynchronous
 		 * On failure, write a default response to the block in order for
 		 * the Promise to be able to resolve.
 		 */
-		Runtime::setChild();
+		Runtime::markChild();
 		$instance->_attachToShm();
 
 		try {

src/Runtime.php

@@ -20,30 +20,12 @@ class Runtime
 	/**
 	 *
 	 */
-	public static function setChild()
+	public static function markChild()
 	{
 		self::$inParentRuntime = false;
 	}
 
 
-	/**
-	 *
-	 */
-	public static function setParent()
-	{
-		self::$inParentRuntime = true;
-	}
-
-
-	/**
-	 * @return bool
-	 */
-	public static function isParent()
-	{
-		return self::$inParentRuntime;
-	}
-
-
 	/**
 	 * @return bool
 	 */