From a1ec78bf0dc93d0e05e5f066f1949dc3baecea06 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 14:44:51 +0200
Subject: Adding upstream version 0.20.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/gipfl/linux-health/src/Cpu.php     | 59 +++++++++++++++++++++++++++++++
 vendor/gipfl/linux-health/src/Memory.php  | 52 +++++++++++++++++++++++++++
 vendor/gipfl/linux-health/src/Network.php | 36 +++++++++++++++++++
 3 files changed, 147 insertions(+)
 create mode 100644 vendor/gipfl/linux-health/src/Cpu.php
 create mode 100644 vendor/gipfl/linux-health/src/Memory.php
 create mode 100644 vendor/gipfl/linux-health/src/Network.php

(limited to 'vendor/gipfl/linux-health/src')

diff --git a/vendor/gipfl/linux-health/src/Cpu.php b/vendor/gipfl/linux-health/src/Cpu.php
new file mode 100644
index 0000000..43f2e50
--- /dev/null
+++ b/vendor/gipfl/linux-health/src/Cpu.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace gipfl\LinuxHealth;
+
+class Cpu
+{
+    public static function getCounters($procFile = '/proc/stat')
+    {
+        $info = [];
+        $cpus = [];
+
+        $cpuKeys = [     // From 'man proc':
+            'user',      // Time spent in user mode.
+            'nice',      // Time spent in user mode with low priority (nice).
+            'system',    // Time spent in system mode.
+            'idle',      // Time spent in the idle task.
+            // This value should be USER_HZ times the second entry in the
+            // /proc/uptime pseudo-file.
+            'iowait',    // Time waiting for I/O to complete. (Linux >= 2.5.41)
+            'irq',       // Time servicing interrupts. (Linux >= 2.6.0-test4)
+            'softirq',   // Time servicing softirqs. (Linux >= 2.6.0-test4)
+            'steal',     // Stolen time, which is the time spent in other operating
+            // systems when running in a virtualized environment
+            // (Linux >= 2.6.11)
+            'guest',     // Time spent running a virtual CPU for guest operating systems
+            // under the control of the Linux kernel. (Linux >= 2.6.24)
+            'guest_nice' // Time spent running a niced guest (virtual CPU for guest
+            // operating systems under the control of the Linux kernel).
+            // (Linux >= 2.6.33)
+        ];
+
+        // TODO:
+        // ctxt 891299797    -> The number of context switches that the system underwent
+        // btime 1540828526  -> boot   time,  in  seconds  since  the  Epoch
+        // processes 2079015 -> Number of forks since boot
+        // procs_running 6   -> Number of processes in  runnable  state
+        // procs_blocked 0   -> Number  of processes blocked waiting for I/O to complete
+
+        foreach (file($procFile, FILE_IGNORE_NEW_LINES) as $line) {
+            $parts = preg_split('/\s+/', $line);
+            $key = array_shift($parts);
+            if (substr($key, 0, 3) === 'cpu') {
+                // TODO: handle count mismatch
+                $cpus[$key] = array_combine(
+                    array_slice($cpuKeys, 0, count($parts), true),
+                    $parts
+                );
+
+                for ($i = count($cpus[$key]) - 1; $i < count($cpuKeys); $i++) {
+                    $cpus[$key][$cpuKeys[$i]] = 0;
+                }
+            } else {
+                $info[$key] = $parts;
+            }
+        }
+
+        return $cpus;
+    }
+}
diff --git a/vendor/gipfl/linux-health/src/Memory.php b/vendor/gipfl/linux-health/src/Memory.php
new file mode 100644
index 0000000..0c6f197
--- /dev/null
+++ b/vendor/gipfl/linux-health/src/Memory.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace gipfl\LinuxHealth;
+
+class Memory
+{
+    protected static $pageSize;
+
+    public static function getUsageForPid($pid)
+    {
+        $pid = (int) $pid;
+        $content = @file_get_contents("/proc/$pid/statm");
+        if ($content === false) {
+            return false;
+        }
+
+        $pageSize = static::getPageSize();
+        if ($pageSize === null) {
+            return false;
+        }
+        $parts = explode(' ', $content);
+
+        return (object) [
+            'size'   => $pageSize * (int) $parts[0],
+            'rss'    => $pageSize * (int) $parts[1],
+            'shared' => $pageSize * (int) $parts[3],
+        ];
+    }
+
+    /**
+     * @return int
+     */
+    public static function getPageSize()
+    {
+        if (self::$pageSize === null) {
+            $output = trim(`getconf PAGESIZE 2>&1`);
+            if (strlen($output)) {
+                self::$pageSize = (int) $output;
+            }
+        }
+
+        return self::$pageSize;
+    }
+
+    /**
+     * @param int $pageSize
+     */
+    public static function setPageSize($pageSize)
+    {
+        self::$pageSize = (int) $pageSize;
+    }
+}
diff --git a/vendor/gipfl/linux-health/src/Network.php b/vendor/gipfl/linux-health/src/Network.php
new file mode 100644
index 0000000..e0bad7d
--- /dev/null
+++ b/vendor/gipfl/linux-health/src/Network.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace gipfl\LinuxHealth;
+
+class Network
+{
+    public static function getInterfaceCounters($procFile = '/proc/net/dev')
+    {
+        // Header looks like this:
+        // Inter-|   Receive                                                |  Transmit
+        //  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets
+        //        (...from above line) errs drop fifo colls carrier compressed
+
+        $lines = \file($procFile, FILE_IGNORE_NEW_LINES);
+        \array_shift($lines);
+        $headers = preg_split('/\|/', array_shift($lines));
+        $rxHeaders = preg_split('/\s+/', $headers[1]);
+        $txHeaders = preg_split('/\s+/', $headers[2]);
+
+        $headers = [];
+        foreach ($rxHeaders as $rx) {
+            $headers[] = 'rx' . ucfirst($rx);
+        }
+        foreach ($txHeaders as $tx) {
+            $headers[] = 'tx' . ucfirst($tx);
+        }
+        $interfaces = [];
+        foreach ($lines as $line) {
+            $parts = preg_split('/\s+|\|/', trim($line));
+            $ifName = rtrim(array_shift($parts), ':');
+            $interfaces[$ifName] = (object) array_combine($headers, $parts);
+        }
+
+        return $interfaces;
+    }
+}
-- 
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