From 22b21450d26ffd14f9ee32be4e22e0491b4abf5c Mon Sep 17 00:00:00 2001
From: Dominique Fournier <dominique@fournier38.fr>
Date: Fri, 12 Jan 2018 13:32:01 +0000
Subject: [PATCH] daemon: add reload method to send Kill -HUP to daemon

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@4030 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
---
 daemon.php | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/daemon.php b/daemon.php
index a73613e..3b73451 100644
--- a/daemon.php
+++ b/daemon.php
@@ -145,4 +145,28 @@ class daemon
     }
     return "The daemon is running on PID $pid\n";
   }
+
+  /** Send a HUP Signal to the daemon
+    * @param string $name The name of daemon to HUP. The name must be
+    * the same as the name used in the start method
+    */
+  public function reload ($name)
+  {
+    $file = new \file ();
+    if (! $file->is_writeable ($this->runDir))
+      throw new \Exception (sprintf ("Run Directory '%s' is not writeable",
+        $this->runDir), 500);
+    if (! $file->is_readable ($this->runDir))
+      throw new \Exception (sprintf ("Run Directory '%s' is not readable",
+        $this->runDir), 500);
+    if (! $file->file_exists ($this->runDir."/$name.pid"))
+      return "The daemon is be stopped";
+    $pid = $file->file_get_contents ($this->runDir."/$name.pid");
+    if (! file_exists ("/proc/$pid"))
+    {
+      $file->unlink ($this->runDir."/$name.pid");
+      return "The daemon is stopped, but the PID file was remaining. Delete";
+    }
+    return posix_kill ($pid, SIGHUP);
+  }
 }