Updates.

more typehints.
Replaced some Exception catches with Throwable.
Removed STDERR constant from Daemon.php.

README.md

@@ -19,7 +19,7 @@ While this library does everything it can to allow you to create a rock solid da
 user-land code to keep things stable. 
 
 ### Requirements
-- PHP 5.4.4+
+- PHP 7.4+
 - A POSIX compatible operating system (Linux, OSX, BSD)
 - PHP [POSIX](http://php.net/posix) and [PCNTL](http://php.net/pcntl) Extensions
 
@@ -78,5 +78,5 @@ purposes. I also didn't agree with some of his methodologies. I do require some
 [Composer](http://getcomposer.org/) makes this a trivial issue.
 
 ---
-_This library is in a fully working state. I've created very complex daemons that have run for weeks w/o any memory 
- leaks or crashes. But this is still a **Work in Progress**!_
+_This library is in a fully working state. I've created very complex daemons that have run for months w/o any memory 
+ leaks or crashes. More could be done...

src/Daemon.php

@@ -94,7 +94,7 @@ abstract class Daemon
      *
      * @var callable|resource|string|null
      */
-    private $output = STDERR;
+    private $output = null;
 
     /**
      * Main event loop frequency in fractional seconds.
@@ -293,6 +293,7 @@ protected function __construct()
         $this->event = new DaemonEvent();
         $this->pid = getmypid() ?: null; // don't want to call event handler with setPid()
         $this->parentPid = $this->pid;
+        $this->setOutput(null);
     }
 
     public function isDumpOnSignal(): bool
@@ -2101,15 +2102,15 @@ public function isAnsi(): bool
     /**
      * Sets the output destination for console output. Setting to null will default back to STDERR.
      *
-     * @param callable|resource|string $output A callable, an opened stream or an output path
+     * @param callable|resource|string|null $output A callable, an opened stream or an output path
      *
      * @return $this
      */
     public function setOutput($output): self
     {
         switch (true) {
-            case empty($output):
-                $this->output = STDERR;
+            case $output === null:
+                $this->output = fopen('php://stderr', 'w');
                 break;
             case is_callable($output):
             case get_resource_type($output) == 'stream':

src/Mediator/Mediator.php

@@ -22,6 +22,7 @@
 use Lifo\Daemon\Worker\WorkerInterface;
 use ReflectionClass;
 use ReflectionMethod;
+use Throwable;
 
 /**
  *
@@ -135,10 +136,9 @@ class Mediator implements TaskInterface
     /**
      * Was the object setup?
      *
-     * @internal
      * @var bool
      */
-    private $initialized;
+    private bool $initialized = false;
 
     /**
      * The subject being mediated.
@@ -166,53 +166,41 @@ class Mediator implements TaskInterface
      * process will be forked on an as-needed basis.
      *
      * Auto restarts will not occur if the subject's callback takes a long time.
-     *
-     * @var bool
      */
     private bool $autoRestart = false;
 
     /**
      * Maximum calls this instance will process before exiting. {@link $autoRestart} must be true.
      * A small amount of entropy is added to reduce all children restarting at the same time.
-     *
-     * @var int
      */
     private int $maxCalls = 0;
 
     /**
      * Maximum seconds this instance will run before exiting. {@link $autoRestart} must be true.
      * A small amount of entropy is added to reduce all children restarting at the same time.
-     *
-     * @var int
      */
     private int $maxRuntime = 0;
 
     /**
      * Minimum seconds this instance will run before exiting. {@link $autoRestart} must be true.
-     *
-     * @var int
      */
     private int $minRuntime = 0;
 
     /**
      * Maximum worker processes allowed
      * A small amount of entropy is added to reduce all children restarting at the same time.
-     *
-     * @var int
      */
     private int $maxProcesses = 1;
 
     /**
      * Allow the Mediator to wakeup the daemon?
-     *
-     * @var bool
      */
     private bool $allowWakeup = false;
 
     /**
      * Event listeners
      *
-     * @var array
+     * @var callable[]|array
      */
     private array $events = [];
 
@@ -238,21 +226,20 @@ class Mediator implements TaskInterface
     /**
      * A list of recent calls made for stats purposes
      *
-     * @var array[]
+     * @var array[][]
      */
     private array $recent = [];
 
     /**
      * How many calls have been made
-     *
-     * @var int
      */
     private int $callCount = 0;
 
     /**
      * @var int[][]
      */
     private array $errorCounts = [];
+
     /**
      * @var int[]
      */
@@ -1178,7 +1165,7 @@ public function run(): void
                 $result = null;
                 try {
                     $result = $this->callSubject($call);
-                } catch (Exception $e) {
+                } catch (Throwable $e) {
                     $this->error("callSubject Exception: " . $e->getMessage());
                     $call->incErrors();
                 }