1 files changed, 59 insertions, 0 deletions
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;
+    }
+}